		# Changelog

		## 0.3.3

		* Fix bug in `buffer` code generation
		* Better compatibility with older browsers
		* Minor performance improvements

		## 0.3.2
		@@ -11,4 +17,4 @@

		* Introduce `Buffer` type
		* Add back `Bool` type
		* Introduce `buffer` type
		* Add back `bool` type
		* Fix missing string handler for views
		@@ -26,3 +32,3 @@
		* All built-in type schemas are made immutable using `Object.freeze`
		* `Uint64` and `Bool` types have been removed
		* `uint64` and `bool` types have been removed

		@@ -29,0 +35,0 @@ ## 0.1.2

+861

-858

dist/structly.js

		@@ -7,1045 +7,1048 @@ (function (global, factory) {

		var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
		return typeof obj;
		} : function (obj) {
		return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj;
		};
		var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
		return typeof obj;
		} : function (obj) {
		return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj;
		};

		/**
		* Whether the running system is little endian (true = LE, false = BE)
		*/
		var systemLittleEndian = (typeof os === 'undefined' ? 'undefined' : _typeof(os)) === 'object' ?
		/* eslint-disable no-undef */
		os.endianness() === 'LE'
		/* eslint-enable no-undef */
		: new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;
		/**
		* Whether the running system is little endian (true = LE, false = BE)
		*/
		var systemLittleEndian = (typeof os === 'undefined' ? 'undefined' : _typeof(os)) === 'object' ?
		/* eslint-disable no-undef */
		os.endianness() === 'LE'
		/* eslint-enable no-undef */
		: new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;

		/**
		* Gets the closest multiple of byteAlignment from byteOffset (base-2 only)
		*/
		function align(byteOffset, byteAlignment) {
		/* eslint-disable no-mixed-operators */
		return byteOffset + byteAlignment - 1 & ~(byteAlignment - 1);
		}
		/**
		* Gets the closest multiple of byteAlignment from byteOffset (base-2 only)
		*/
		function align(byteOffset, byteAlignment) {
		/* eslint-disable no-mixed-operators */
		return byteOffset + byteAlignment - 1 & ~(byteAlignment - 1);
		}

		/**
		* The byte alignment of the given type
		*/
		function alignof() {
		var _ref = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];
		/**
		* The byte alignment of the given type
		*/
		function alignof() {
		var _ref = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];

		var _ref$byteAlignment = _ref.byteAlignment;
		var byteAlignment = _ref$byteAlignment === undefined ? 0 : _ref$byteAlignment;
		var _ref$byteAlignment = _ref.byteAlignment;
		var byteAlignment = _ref$byteAlignment === undefined ? 0 : _ref$byteAlignment;

		return byteAlignment;
		}
		return byteAlignment;
		}

		/**
		* The byte size of the type, excluding alignment padding
		*/
		function sizeof() {
		var _ref2 = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];
		/**
		* The byte size of the type, excluding alignment padding
		*/
		function sizeof() {
		var _ref2 = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];

		var _ref2$byteLength = _ref2.byteLength;
		var byteLength = _ref2$byteLength === undefined ? 0 : _ref2$byteLength;
		var _ref2$byteLength = _ref2.byteLength;
		var byteLength = _ref2$byteLength === undefined ? 0 : _ref2$byteLength;

		return byteLength;
		}
		return byteLength;
		}

		/**
		* The byte size of the type, including alignment padding
		*/
		function strideof(type) {
		var byteAlignment = arguments.length <= 1 \|\| arguments[1] === undefined ? alignof(type) : arguments[1];
		/**
		* The byte size of the type, including alignment padding
		*/
		function strideof(type) {
		var byteAlignment = arguments.length <= 1 \|\| arguments[1] === undefined ? alignof(type) : arguments[1];

		return align(sizeof(type), byteAlignment);
		}
		return align(sizeof(type), byteAlignment);
		}

		function createMask(bits) {
		return bits <= 0 ? 0 : 0xFFFFFFFF >>> 32 - bits;
		}
		function createMask(bits) {
		return bits <= 0 ? 0 : 0xFFFFFFFF >>> 32 - bits;
		}

		function createVariable(name) {
		var stackDepth = arguments.length <= 1 \|\| arguments[1] === undefined ? 0 : arguments[1];
		function createVariable(name) {
		var stackDepth = arguments.length <= 1 \|\| arguments[1] === undefined ? 0 : arguments[1];

		return '' + name + stackDepth;
		return '' + name + stackDepth;
		}

		/* eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax */
		var assign = Object.assign \|\| /* istanbul ignore next */function assign(target) {
		if (target == null) {
		throw new TypeError('Cannot convert undefined or null to object');
		}

		/* eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax */
		var assign = Object.assign \|\| /* istanbul ignore next */function assign(target) {
		if (target == null) {
		throw new TypeError('Cannot convert undefined or null to object');
		}
		target = Object(target);
		for (var index = 1, len = arguments.length; index < len; index++) {
		var source = Object(arguments[index]);
		if (source != null) {
		for (var key in source) {
		if (Object.prototype.hasOwnProperty.call(source, key)) {
		target[key] = source[key];
		}
		target = Object(target);
		for (var index = 1, len = arguments.length; index < len; index++) {
		var source = Object(arguments[index]);
		if (source != null) {
		for (var key in source) {
		if (Object.prototype.hasOwnProperty.call(source, key)) {
		target[key] = source[key];
		}
		}
		}
		return target;
		};
		}
		return target;
		};

		function getDataView(data) {
		if (data instanceof ArrayBuffer) {
		return new DataView(data);
		} else if (ArrayBuffer.isView(data)) {
		var buffer = data.buffer;
		var byteOffset = data.byteOffset;
		var byteLength = data.byteLength;
		function getDataView(data) {
		if (data instanceof DataView) {
		return data;
		} else if (data instanceof ArrayBuffer) {
		return new DataView(data);
		} else if (ArrayBuffer.isView(data)) {
		var buffer = data.buffer;
		var byteOffset = data.byteOffset;
		var byteLength = data.byteLength;

		return new DataView(buffer, byteOffset, byteLength);
		}
		throw new TypeError('Invalid input data');
		return new DataView(buffer, byteOffset, byteLength);
		}

		// Memoize if WeakMap if supported, otherwise passthrough
		var maybeMemoize = function () {
		if (typeof WeakMap === 'function') {
		return function memoize(fn) {
		var cache = new WeakMap();
		return function memoized(key) {
		if (!cache.has(key)) {
		cache.set(key, fn(key));
		}
		return cache.get(key);
		};
		throw new TypeError('Invalid input data');
		}
		// Memoize if WeakMap if supported, otherwise passthrough
		var maybeMemoize = function () {
		if (typeof WeakMap === 'function') {
		return function memoize(fn) {
		var cache = new WeakMap();
		return function memoized(key) {
		if (!cache.has(key)) {
		cache.set(key, fn(key));
		}
		return cache.get(key);
		};
		}
		/* istanbul ignore next */
		return function passthrough(fn) {
		return fn;
		};
		}();
		}
		/* istanbul ignore next */
		return function passthrough(fn) {
		return fn;
		};
		}();

		function createNumberType(kind, size) {
		var littleEndian = arguments.length <= 2 \|\| arguments[2] === undefined ? systemLittleEndian : arguments[2];
		/* eslint-disable no-param-reassign */
		function createNumberType(kind, size) {
		var littleEndian = arguments.length <= 2 \|\| arguments[2] === undefined ? systemLittleEndian : arguments[2];

		return Object.freeze({
		tag: 'Number',
		kind: kind,
		byteLength: size,
		byteAlignment: size,
		littleEndian: littleEndian
		});
		}
		return Object.freeze({
		tag: 'Number',
		kind: kind,
		byteLength: size,
		byteAlignment: size,
		littleEndian: littleEndian
		});
		}

		var boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });
		var bool = boolean;
		var boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });
		var bool = boolean;

		var int8 = createNumberType('Int8', 1);
		var uint8 = createNumberType('Uint8', 1);
		var int8 = createNumberType('Int8', 1);
		var uint8 = createNumberType('Uint8', 1);

		var int16 = createNumberType('Int16', 2);
		var int16le = createNumberType('Int16', 2, true);
		var int16be = createNumberType('Int16', 2, false);
		var int16 = createNumberType('Int16', 2);
		var int16le = createNumberType('Int16', 2, true);
		var int16be = createNumberType('Int16', 2, false);

		var uint16 = createNumberType('Uint16', 2);
		var uint16le = createNumberType('Uint16', 2, true);
		var uint16be = createNumberType('Uint16', 2, false);
		var uint16 = createNumberType('Uint16', 2);
		var uint16le = createNumberType('Uint16', 2, true);
		var uint16be = createNumberType('Uint16', 2, false);

		var int32 = createNumberType('Int32', 4);
		var int32le = createNumberType('Int32', 4, true);
		var int32be = createNumberType('Int32', 4, false);
		var int32 = createNumberType('Int32', 4);
		var int32le = createNumberType('Int32', 4, true);
		var int32be = createNumberType('Int32', 4, false);

		var uint32 = createNumberType('Uint32', 4);
		var uint32le = createNumberType('Uint32', 4, true);
		var uint32be = createNumberType('Uint32', 4, false);
		var uint32 = createNumberType('Uint32', 4);
		var uint32le = createNumberType('Uint32', 4, true);
		var uint32be = createNumberType('Uint32', 4, false);

		var float32 = createNumberType('Float32', 4);
		var float32le = createNumberType('Float32', 4, true);
		var float32be = createNumberType('Float32', 4, false);
		var float32 = createNumberType('Float32', 4);
		var float32le = createNumberType('Float32', 4, true);
		var float32be = createNumberType('Float32', 4, false);

		var float64 = createNumberType('Float64', 8);
		var float64le = createNumberType('Float64', 8, true);
		var float64be = createNumberType('Float64', 8, false);
		var float64 = createNumberType('Float64', 8);
		var float64le = createNumberType('Float64', 8, true);
		var float64be = createNumberType('Float64', 8, false);

		/**
		* Create a string type.
		*/
		function string(maxLength) {
		var encoding = arguments.length <= 1 \|\| arguments[1] === undefined ? 'utf8' : arguments[1];
		/**
		* Create a string type.
		*/
		function string(maxLength) {
		var encoding = arguments.length <= 1 \|\| arguments[1] === undefined ? 'utf8' : arguments[1];

		if (maxLength === undefined) {
		throw new TypeError('You must specify a max length for the string!');
		}

		return Object.freeze({
		tag: 'String',
		byteLength: maxLength,
		byteAlignment: 1,
		encoding: encoding
		});
		if (maxLength === undefined) {
		throw new TypeError('You must specify a max length for the string!');
		}

		/**
		* Create an array type.
		*/
		function array(element, length) {
		var _ref = arguments.length <= 2 \|\| arguments[2] === undefined ? {} : arguments[2];
		return Object.freeze({
		tag: 'String',
		byteLength: maxLength,
		byteAlignment: 1,
		encoding: encoding
		});
		}

		var pack = _ref.pack;
		/**
		* Create an array type.
		*/
		function array(element, length) {
		var _ref = arguments.length <= 2 \|\| arguments[2] === undefined ? {} : arguments[2];

		if (element === undefined) {
		throw new TypeError('You must specify the array element type!');
		}
		if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the array!');
		}
		var pack = _ref.pack;

		return Object.freeze({
		tag: 'Array',
		byteLength: length * element.byteLength,
		byteAlignment: pack \|\| element.byteAlignment,
		length: length,
		element: element
		});
		if (element === undefined) {
		throw new TypeError('You must specify the array element type!');
		}
		if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the array!');
		}

		function offsetHelper(tag, elements, inject) {
		var pack = arguments.length <= 3 \|\| arguments[3] === undefined ? 0 : arguments[3];
		return Object.freeze({
		tag: 'Array',
		byteLength: length * element.byteLength,
		byteAlignment: pack \|\| element.byteAlignment,
		length: length,
		element: element
		});
		}

		var byteOffset = 0;
		var maxByteAlignment = 0;
		function offsetHelper(tag, elements, inject) {
		var pack = arguments.length <= 3 \|\| arguments[3] === undefined ? 0 : arguments[3];

		var members = Object.freeze(elements.map(function (element) {
		var byteLength = element.byteLength;
		var byteAlignment = element.byteAlignment;
		var byteOffset = 0;
		var maxByteAlignment = 0;

		var members = Object.freeze(elements.map(function (element) {
		var byteLength = element.byteLength;
		var byteAlignment = element.byteAlignment;

		byteOffset = align(byteOffset, pack \|\| byteAlignment);

		var result = { byteOffset: byteOffset, element: element };
		byteOffset = align(byteOffset, pack \|\| byteAlignment);

		if (inject !== undefined) {
		assign(result, inject(element));
		}
		var result = { byteOffset: byteOffset, element: element };

		byteOffset += byteLength;
		maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);
		if (inject !== undefined) {
		assign(result, inject(element));
		}

		return Object.freeze(result);
		}));
		byteOffset += byteLength;
		maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);

		return Object.freeze({
		tag: tag,
		byteLength: byteOffset,
		byteAlignment: pack \|\| maxByteAlignment,
		members: members
		});
		}
		return Object.freeze(result);
		}));

		/**
		* Create a tuple type.
		*/
		function tuple() {
		for (var _len = arguments.length, elements = Array(_len), _key = 0; _key < _len; _key++) {
		elements[_key] = arguments[_key];
		}
		return Object.freeze({
		tag: tag,
		byteLength: byteOffset,
		byteAlignment: pack \|\| maxByteAlignment,
		members: members
		});
		}

		return offsetHelper('Tuple', elements);
		/**
		* Create a tuple type.
		*/
		function tuple() {
		for (var _len = arguments.length, elements = Array(_len), _key = 0; _key < _len; _key++) {
		elements[_key] = arguments[_key];
		}

		function injectName(_ref2) {
		var name = _ref2.name;
		return offsetHelper('Tuple', elements);
		}

		return { name: name };
		}
		function injectName(_ref2) {
		var name = _ref2.name;

		/**
		* Create a struct type.
		*/
		function struct(members) {
		var _ref3 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];
		return { name: name };
		}

		var _ref3$reorder = _ref3.reorder;
		var reorder = _ref3$reorder === undefined ? false : _ref3$reorder;
		var _ref3$pack = _ref3.pack;
		var pack = _ref3$pack === undefined ? 0 : _ref3$pack;
		/**
		* Create a struct type.
		*/
		function struct(members) {
		var _ref3 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];

		if (members === undefined) {
		throw new TypeError('You must specify the struct members!');
		}
		var _ref3$reorder = _ref3.reorder;
		var reorder = _ref3$reorder === undefined ? false : _ref3$reorder;
		var _ref3$pack = _ref3.pack;
		var pack = _ref3$pack === undefined ? 0 : _ref3$pack;

		pack = Number(pack);
		var memberNames = Object.keys(members);
		if (members === undefined) {
		throw new TypeError('You must specify the struct members!');
		}

		if (reorder) {
		memberNames.sort(function (a, b) {
		return alignof(members[a]) - alignof(members[b]);
		});
		}
		pack = Number(pack);
		var memberNames = Object.keys(members);

		var sortedMembers = memberNames.map(function (name) {
		return assign({ name: name }, members[name]);
		if (reorder) {
		memberNames.sort(function (a, b) {
		return alignof(members[a]) - alignof(members[b]);
		});

		return offsetHelper('Struct', sortedMembers, injectName, pack);
		}

		/**
		* Create a bitfield type.
		*/
		function bitfield(members) {
		var element = arguments.length <= 1 \|\| arguments[1] === undefined ? uint32 : arguments[1];
		var sortedMembers = memberNames.map(function (name) {
		return assign({ name: name }, members[name]);
		});

		if (members === undefined) {
		throw new TypeError('You must specify the bitfield members!');
		}
		return offsetHelper('Struct', sortedMembers, injectName, pack);
		}

		var memberNames = Object.keys(members);
		var totalBits = memberNames.reduce(function (sum, name) {
		return sum + members[name];
		}, 0);
		/**
		* Create a bitfield type.
		*/
		function bitfield(members) {
		var element = arguments.length <= 1 \|\| arguments[1] === undefined ? uint32 : arguments[1];

		if (totalBits > 8 * element.byteLength) {
		throw new RangeError('Sum of bitfield widths is too large for storage element');
		}
		if (members === undefined) {
		throw new TypeError('You must specify the bitfield members!');
		}

		return Object.freeze({
		tag: 'Bitfield',
		byteLength: element.byteLength,
		byteAlignment: element.byteAlignment,
		members: Object.freeze(memberNames.map(function (name) {
		return Object.freeze({ name: name, bits: members[name] });
		})),
		element: element
		});
		var memberNames = Object.keys(members);
		var totalBits = memberNames.reduce(function (sum, name) {
		return sum + members[name];
		}, 0);

		if (totalBits > 8 * element.byteLength) {
		throw new RangeError('Sum of bitfield widths is too large for storage element');
		}

		function buffer(length) {
		if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the buffer!');
		}
		return Object.freeze({
		tag: 'Bitfield',
		byteLength: element.byteLength,
		byteAlignment: element.byteAlignment,
		members: Object.freeze(memberNames.map(function (name) {
		return Object.freeze({ name: name, bits: members[name] });
		})),
		element: element
		});
		}

		return Object.freeze({
		tag: 'Buffer',
		byteLength: length,
		byteAlignment: 1
		});
		function buffer(length) {
		if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the buffer!');
		}

		var readerVisitor = Object.freeze({
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;
		return Object.freeze({
		tag: 'Buffer',
		byteLength: length,
		byteAlignment: 1
		});
		}

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		/* eslint-disable max-len, no-new-func */
		var readerVisitor = Object.freeze({
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;

		return resultVar + ' = dataView.get' + kind + '(' + byteOffsetVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		return resultVar + ' = Boolean(dataView.getUint8(' + byteOffsetVar + '));';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;
		return resultVar + ' = dataView.get' + kind + '(' + byteOffsetVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var resultVar = createVariable('result', stackDepth);

		var resultVar = createVariable('result', stackDepth);
		var arrayVar = createVariable('array', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		return '\n ' + readerVisitor.Number(uint8, stackDepth) + '\n ' + resultVar + ' = Boolean(' + resultVar + ');\n ';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;

		return '\n var ' + arrayVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n var ' + indexVar + ' = ' + arrayVar + '.indexOf(0);\n if (' + indexVar + ' >= 0) {\n ' + arrayVar + ' = ' + arrayVar + '.subarray(0, ' + indexVar + ');\n }\n ' + function () {
		if (typeof Buffer === 'function') {
		return resultVar + ' = new Buffer(' + arrayVar + ').toString(' + JSON.stringify(encoding) + ');';
		}
		var resultVar = createVariable('result', stackDepth);
		var arrayVar = createVariable('array', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return resultVar + ' = new TextDecoder(' + JSON.stringify(encoding) + ').decode(' + arrayVar + ');';
		}
		return '\n var ' + arrayVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n var ' + indexVar + ' = Array.prototype.indexOf.call(' + arrayVar + ', 0);\n ' + function () {
		if (typeof Buffer === 'function') {
		return '\n ' + resultVar + ' = new Buffer(' + arrayVar + '.buffer)\n .slice(' + byteOffsetVar + ', ' + byteOffsetVar + ' + (' + indexVar + ' >= 0 ? ' + indexVar + ' : ' + byteLength + '))\n .toString(' + JSON.stringify(encoding) + ');\n ';
		}

		/* istanbul ignore next */
		return resultVar + ' = String.fromCharCode.apply(String, ' + arrayVar + ');';
		}() + '\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;
		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return '\n if (' + indexVar + ' >= 0) {\n ' + arrayVar + ' = new Uint8Array(' + arrayVar + '.buffer, ' + byteOffsetVar + ', ' + indexVar + ');\n }\n ' + resultVar + ' = new TextDecoder(' + JSON.stringify(encoding) + ').decode(' + arrayVar + ');\n ';
		}

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);
		/* istanbul ignore next */
		return '\n if (' + indexVar + ' >= 0) {\n ' + arrayVar + ' = new Uint8Array(' + arrayVar + '.buffer, ' + byteOffsetVar + ', ' + indexVar + ');\n }\n ' + resultVar + ' = String.fromCharCode.apply(String, ' + arrayVar + ');\n ';
		}() + '\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + length + ');\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerResultVar + ' = ' + resultVar + '[' + indexVar + '];\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + indexVar + '] = ' + innerResultVar + ';\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + length + ');\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerResultVar + ' = ' + resultVar + '[' + indexVar + '];\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + indexVar + '] = ' + innerResultVar + ';\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + members.length + ');\n }\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + i + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyStruct = '{ ' + members.map(function (_ref7) {
		var name = _ref7.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + members.length + ');\n }\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + i + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyStruct + ';\n }\n ' + members.map(function (_ref8) {
		var name = _ref8.name;
		var element = _ref8.element;
		var byteOffset = _ref8.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref9, stackDepth) {
		var element = _ref9.element;
		var members = _ref9.members;
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyStruct = '{ ' + members.map(function (_ref7) {
		var name = _ref7.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyBitfield = '{ ' + members.map(function (_ref10) {
		var name = _ref10.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyStruct + ';\n }\n ' + members.map(function (_ref8) {
		var name = _ref8.name;
		var element = _ref8.element;
		var byteOffset = _ref8.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref9, stackDepth) {
		var element = _ref9.element;
		var members = _ref9.members;

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyBitfield + ';\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerResultVar + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + members.map(function (_ref11) {
		var name = _ref11.name;
		var bits = _ref11.bits;
		return '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ' & ' + createMask(bits) + ';\n ' + innerResultVar + ' >>>= ' + bits + ';\n ';
		}).join('\n') + '\n ';
		},
		Buffer: function Buffer(_ref12, stackDepth) {
		var byteLength = _ref12.byteLength;
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyBitfield = '{ ' + members.map(function (_ref10) {
		var name = _ref10.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyBitfield + ';\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerResultVar + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + members.map(function (_ref11) {
		var name = _ref11.name;
		var bits = _ref11.bits;
		return '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ' & ' + createMask(bits) + ';\n ' + innerResultVar + ' >>>= ' + bits + ';\n ';
		}).join('\n') + '\n ';
		},
		Buffer: function Buffer(_ref12, stackDepth) {
		var byteLength = _ref12.byteLength;

		return '\n if (' + resultVar + ' === void 0 \|\|\n ' + resultVar + '.buffer !== dataView.buffer \|\|\n ' + resultVar + '.byteLength !== ' + byteOffsetVar + ' \|\|\n ' + resultVar + '.byteOffset !== ' + byteLength + ') {\n ' + resultVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n }\n ';
		}
		});
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		function createReader(type) {
		var resultVar = createVariable('result');
		var byteOffsetVar = createVariable('byteOffset');

		return new Function('dataView', byteOffsetVar, resultVar, '\n "use strict";\n ' + readerVisitor[type.tag](type, 0) + '\n return ' + resultVar + ';\n ');
		return '\n if (' + resultVar + ' === void 0 \|\|\n ' + resultVar + '.buffer !== dataView.buffer \|\|\n ' + resultVar + '.byteOffset !== ' + byteOffsetVar + ' \|\|\n ' + resultVar + '.byteLength !== ' + byteLength + ') {\n ' + resultVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n }\n ';
		}
		});

		var writerVisitor = Object.freeze({
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;
		function createReader(type) {
		var resultVar = createVariable('result');
		var byteOffsetVar = createVariable('byteOffset');

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		return new Function('dataView', byteOffsetVar, resultVar, '\n "use strict";\n ' + readerVisitor[type.tag](type, 0) + '\n return ' + resultVar + ';\n ');
		}

		return 'dataView.set' + kind + '(' + byteOffsetVar + ', ' + dataVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		/* eslint-disable max-len, no-new-func */
		var writerVisitor = Object.freeze({
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;

		return 'dataView.setUint8(' + byteOffsetVar + ', Number(' + dataVar + '));';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var lengthVar = createVariable('length', stackDepth);
		return 'dataView.set' + kind + '(' + byteOffsetVar + ', ' + dataVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var dataVar = createVariable('data', stackDepth);

		if (typeof Buffer === 'function') {
		return '\n new Buffer(' + dataVar + ', ' + JSON.stringify(encoding) + ').copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ' + byteOffsetVar + ');\n ';
		}
		return '\n ' + dataVar + ' = Number(' + dataVar + ');\n ' + writerVisitor.Number(uint8, stackDepth) + '\n ';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;

		/* istanbul ignore next */
		if (typeof TextEncoder === 'function') {
		return '\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(' + JSON.stringify(encoding) + ').encode(' + dataVar + '));\n ';
		}
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var lengthVar = createVariable('length', stackDepth);

		/* istanbul ignore next */
		return '\n ' + dataVar + ' = new String(' + dataVar + ');\n for (var ' + indexVar + ' = 0, ' + lengthVar + ' = ' + dataVar + '.length; ' + indexVar + ' < ' + lengthVar + '; ++' + indexVar + ') {\n dataView.setUint8(' + byteOffsetVar + ' + ' + indexVar + ', ' + dataVar + '.charCodeAt(' + indexVar + '));\n }\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;
		if (typeof Buffer === 'function') {
		return '\n new Buffer(' + dataVar + ', ' + JSON.stringify(encoding) + ').copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ' + byteOffsetVar + ');\n ';
		}

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);
		/* istanbul ignore next */
		if (typeof TextEncoder === 'function') {
		return '\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(' + JSON.stringify(encoding) + ').encode(' + dataVar + '));\n ';
		}

		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerDataVar + ' = ' + dataVar + '[' + indexVar + '];\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;
		/* istanbul ignore next */
		return '\n ' + dataVar + ' = new String(' + dataVar + ');\n for (var ' + indexVar + ' = 0, ' + lengthVar + ' = ' + dataVar + '.length; ' + indexVar + ' < ' + lengthVar + '; ++' + indexVar + ') {\n dataView.setUint8(' + byteOffsetVar + ' + ' + indexVar + ', ' + dataVar + '.charCodeAt(' + indexVar + '));\n }\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);

		return '\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;
		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerDataVar + ' = ' + dataVar + '[' + indexVar + '];\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		return '\n ' + members.map(function (_ref7) {
		var name = _ref7.name;
		var element = _ref7.element;
		var byteOffset = _ref7.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref8, stackDepth) {
		var element = _ref8.element;
		var members = _ref8.members;
		return '\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerDataVar + ' = 0;\n ' + members.slice().reverse().map(function (_ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;
		return '\n ' + innerDataVar + ' <<= ' + bits + ';\n ' + innerDataVar + ' \|= ' + dataVar + '[' + JSON.stringify(name) + '] & ' + createMask(bits) + ';\n ';
		}).join('\n') + '\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		},
		Buffer: function Buffer(_ref10, stackDepth) {
		var byteLength = _ref10.byteLength;
		return '\n ' + members.map(function (_ref7) {
		var name = _ref7.name;
		var element = _ref7.element;
		var byteOffset = _ref7.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref8, stackDepth) {
		var element = _ref8.element;
		var members = _ref8.members;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		return '\n if (' + dataVar + '.buffer !== dataView.buffer \|\|\n ' + dataVar + '.byteLength !== ' + byteOffsetVar + ' \|\|\n ' + dataVar + '.byteOffset !== ' + byteLength + ') {\n new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ').set(' + dataVar + ');\n }\n ';
		}
		});
		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerDataVar + ' = 0;\n ' + members.slice().reverse().map(function (_ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;
		return '\n ' + innerDataVar + ' <<= ' + bits + ';\n ' + innerDataVar + ' \|= ' + dataVar + '[' + JSON.stringify(name) + '] & ' + createMask(bits) + ';\n ';
		}).join('\n') + '\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		},
		Buffer: function Buffer(_ref10, stackDepth) {
		var byteLength = _ref10.byteLength;

		function createWriter(type) {
		var dataVar = createVariable('data');
		var byteOffsetVar = createVariable('byteOffset');
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		return new Function('dataView', byteOffsetVar, dataVar, '\n "use strict";\n ' + writerVisitor[type.tag](type, 0) + '\n ');
		return '\n if (' + dataVar + '.buffer !== dataView.buffer \|\|\n ' + dataVar + '.byteOffset !== ' + byteOffsetVar + ' \|\|\n ' + dataVar + '.byteLength !== ' + byteLength + ') {\n new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ').set(' + dataVar + ');\n }\n ';
		}
		});

		var SUPPORTS_PROXY = typeof Proxy === 'function';
		function createWriter(type) {
		var dataVar = createVariable('data');
		var byteOffsetVar = createVariable('byteOffset');

		function createArrayProxy(length) {
		var _ref = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];
		return new Function('dataView', byteOffsetVar, dataVar, '\n "use strict";\n ' + writerVisitor[type.tag](type, 0) + '\n ');
		}

		var _get = _ref.get;
		var _set = _ref.set;
		var _ref$useProxy = _ref.useProxy;
		var useProxy = _ref$useProxy === undefined ? SUPPORTS_PROXY : _ref$useProxy;
		var SUPPORTS_PROXY = typeof Proxy === 'function';

		var array = new Array(length);
		function createArrayProxy(length) {
		var _ref = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];

		// Lazily compute properties if proxy is available
		if (useProxy) {
		return new Proxy(array, {
		has: function has(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		return index >= 0 && index < length;
		}
		return key in target;
		},
		get: function get(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		if (index >= 0 && index < length) {
		var cache = void 0;
		if (key in target) {
		cache = target[key];
		} else {
		cache = _get(index);
		if ((typeof cache === 'undefined' ? 'undefined' : _typeof(cache)) === 'object') {
		/* eslint-disable no-param-reassign */
		target[key] = cache;
		/* eslint-enable */
		}
		var _get = _ref.get;
		var _set = _ref.set;
		var _ref$useProxy = _ref.useProxy;
		var useProxy = _ref$useProxy === undefined ? SUPPORTS_PROXY : _ref$useProxy;

		var array = new Array(length);

		// Lazily compute properties if proxy is available
		if (useProxy) {
		return new Proxy(array, {
		has: function has(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		return index >= 0 && index < length;
		}
		return key in target;
		},
		get: function get(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		if (index >= 0 && index < length) {
		var cache = void 0;
		if (key in target) {
		cache = target[key];
		} else {
		cache = _get(index);
		if ((typeof cache === 'undefined' ? 'undefined' : _typeof(cache)) === 'object') {
		/* eslint-disable no-param-reassign */
		target[key] = cache;
		/* eslint-enable */
		}
		return cache;
		}
		return cache;
		}
		return target[key];
		},
		set: function set(target, key, value) {
		// Check that key is either a number or a numeric string
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		// Check bounds
		if (index >= 0 && index < length) {
		return _set(index, value) \|\| true;
		}
		}
		return target[key];
		},
		set: function set(target, key, value) {
		// Check that key is either a number or a numeric string
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		// Check bounds
		if (index >= 0 && index < length) {
		return _set(index, value) \|\| true;
		}
		// Don't allow any other properties to be changed
		return false;
		}
		});
		}
		// Don't allow any other properties to be changed
		return false;
		}
		});
		}

		// Eagerly compute properties using Object.defineProperty
		// Eagerly compute properties using Object.defineProperty

		var _loop = function _loop(i) {
		var cache = void 0;
		Object.defineProperty(array, i, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get(i);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		var _loop = function _loop(i) {
		var cache = void 0;
		Object.defineProperty(array, i, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get(i);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},

		set: _set.bind(undefined, i)
		});
		};
		set: _set.bind(undefined, i)
		});
		};

		for (var i = 0; i < length; ++i) {
		_loop(i);
		}

		return Object.freeze(array);
		for (var i = 0; i < length; ++i) {
		_loop(i);
		}

		function createObjectProxy(keys) {
		var _ref2 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];
		return Object.freeze(array);
		}

		var _get2 = _ref2.get;
		var set = _ref2.set;
		function createObjectProxy(keys) {
		var _ref2 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];

		var object = {};
		var _get2 = _ref2.get;
		var set = _ref2.set;

		var _loop2 = function _loop2(i) {
		var key = keys[i];
		var cache = void 0;
		Object.defineProperty(object, key, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get2(key);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		var object = {};

		set: set.bind(undefined, key)
		});
		};
		var _loop2 = function _loop2(i) {
		var key = keys[i];
		var cache = void 0;
		Object.defineProperty(object, key, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get2(key);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},

		for (var i = 0; i < keys.length; ++i) {
		_loop2(i);
		}
		set: set.bind(undefined, key)
		});
		};

		return Object.freeze(object);
		for (var i = 0; i < keys.length; ++i) {
		_loop2(i);
		}

		var viewVisitor = Object.freeze({
		Number: function Number(_ref3, dataView, byteOffset) {
		var littleEndian = _ref3.littleEndian;
		var kind = _ref3.kind;
		return Object.freeze(object);
		}

		return dataView['get' + kind](byteOffset, littleEndian);
		},
		Boolean: function (_Boolean) {
		function Boolean(_x3, _x4, _x5) {
		return _Boolean.apply(this, arguments);
		}
		var viewVisitor = Object.freeze({
		Number: function Number(_ref3, dataView, byteOffset) {
		var littleEndian = _ref3.littleEndian;
		var kind = _ref3.kind;

		Boolean.toString = function () {
		return _Boolean.toString();
		};
		return dataView['get' + kind](byteOffset, littleEndian);
		},
		Boolean: function (_Boolean) {
		function Boolean(_x3, _x4, _x5) {
		return _Boolean.apply(this, arguments);
		}

		return Boolean;
		}(function (_, dataView, byteOffset) {
		return Boolean(dataView.getUint8(byteOffset));
		}),
		String: function (_String) {
		function String(_x6, _x7, _x8) {
		return _String.apply(this, arguments);
		}
		Boolean.toString = function () {
		return _Boolean.toString();
		};

		String.toString = function () {
		return _String.toString();
		};
		return Boolean;
		}(function (_, dataView, byteOffset) {
		return Boolean(dataView.getUint8(byteOffset));
		}),
		String: function (_String) {
		function String(_x6, _x7, _x8) {
		return _String.apply(this, arguments);
		}

		return String;
		}(function (_ref4, dataView, byteOffset) {
		var byteLength = _ref4.byteLength;
		var encoding = _ref4.encoding;
		String.toString = function () {
		return _String.toString();
		};

		var array = new Uint8Array(dataView.buffer, byteOffset, byteLength);
		return String;
		}(function (_ref4, dataView, byteOffset) {
		var byteLength = _ref4.byteLength;
		var encoding = _ref4.encoding;

		var index = array.indexOf(0);
		if (index >= 0) {
		array = array.subarray(0, index);
		}
		var array = new Uint8Array(dataView.buffer, byteOffset, byteLength);

		if (typeof Buffer === 'function') {
		return new Buffer(array).toString(encoding);
		}
		var index = Array.prototype.indexOf.call(array, 0);
		if (index >= 0) {
		array = array.subarray(0, index);
		}

		/* eslint-disable no-undef */
		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return new TextDecoder(encoding).decode(array);
		}
		/* eslint-enable no-undef */
		if (typeof Buffer === 'function') {
		return new Buffer(array).toString(encoding);
		}

		/* eslint-disable prefer-spread */
		/* istanbul ignore next */
		return String.fromCharCode.apply(String, array);
		/* eslint-enable prefer-spread */
		}),
		Array: function Array(_ref5, dataView, byteOffset) {
		var length = _ref5.length;
		var element = _ref5.element;
		var useProxy = arguments.length <= 3 \|\| arguments[3] === undefined ? length > 20 : arguments[3];
		/* eslint-disable no-undef */
		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return new TextDecoder(encoding).decode(array);
		}
		/* eslint-enable no-undef */

		var elementProxyHandler = viewVisitor[element.tag];
		var elementWriter = createWriter(element);
		var byteStride = strideof(element);
		/* eslint-disable prefer-spread */
		/* istanbul ignore next */
		return String.fromCharCode.apply(String, array);
		/* eslint-enable prefer-spread */
		}),
		Array: function Array(_ref5, dataView, byteOffset) {
		var length = _ref5.length;
		var element = _ref5.element;
		var useProxy = arguments.length <= 3 \|\| arguments[3] === undefined ? length > 20 : arguments[3];

		return createArrayProxy(length, {
		useProxy: useProxy,
		get: function get(i) {
		var elementByteOffset = byteOffset + byteStride * i;
		return elementProxyHandler(element, dataView, elementByteOffset, useProxy);
		},
		set: function set(i, value) {
		var elementByteOffset = byteOffset + byteStride * i;
		elementWriter(dataView, elementByteOffset, value);
		}
		});
		},
		Tuple: function Tuple(_ref6, dataView, byteOffset, useProxy) {
		var members = _ref6.members;
		var elementProxyHandler = viewVisitor[element.tag];
		var elementWriter = createWriter(element);
		var byteStride = strideof(element);

		var handlers = members.map(function (member) {
		return {
		element: member.element,
		proxyHandler: viewVisitor[member.element.tag],
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset
		};
		});
		return createArrayProxy(length, {
		useProxy: useProxy,
		get: function get(i) {
		var elementByteOffset = byteOffset + byteStride * i;
		return elementProxyHandler(element, dataView, elementByteOffset, useProxy);
		},
		set: function set(i, value) {
		var elementByteOffset = byteOffset + byteStride * i;
		elementWriter(dataView, elementByteOffset, value);
		}
		});
		},
		Tuple: function Tuple(_ref6, dataView, byteOffset, useProxy) {
		var members = _ref6.members;

		return createArrayProxy(members.length, {
		useProxy: false,
		get: function get(i) {
		var _handlers$i = handlers[i];
		var element = _handlers$i.element;
		var proxyHandler = _handlers$i.proxyHandler;
		var totalByteOffset = _handlers$i.totalByteOffset;
		var handlers = members.map(function (member) {
		return {
		element: member.element,
		proxyHandler: viewVisitor[member.element.tag],
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset
		};
		});

		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(i, value) {
		var _handlers$i2 = handlers[i];
		var writer = _handlers$i2.writer;
		var totalByteOffset = _handlers$i2.totalByteOffset;
		return createArrayProxy(members.length, {
		useProxy: false,
		get: function get(i) {
		var _handlers$i = handlers[i];
		var element = _handlers$i.element;
		var proxyHandler = _handlers$i.proxyHandler;
		var totalByteOffset = _handlers$i.totalByteOffset;

		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Struct: function Struct(_ref7, dataView, byteOffset, useProxy) {
		var members = _ref7.members;
		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(i, value) {
		var _handlers$i2 = handlers[i];
		var writer = _handlers$i2.writer;
		var totalByteOffset = _handlers$i2.totalByteOffset;

		var names = members.map(function (member) {
		return member.name;
		});
		var membersByName = members.reduce(function (obj, member) {
		/* eslint-disable no-param-reassign */
		obj[member.name] = {
		element: member.element,
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset,
		proxyHandler: viewVisitor[member.element.tag]
		};
		/* eslint-enable */
		return obj;
		}, Object.create(null));
		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Struct: function Struct(_ref7, dataView, byteOffset, useProxy) {
		var members = _ref7.members;

		return createObjectProxy(names, {
		get: function get(name) {
		var _membersByName$name = membersByName[name];
		var element = _membersByName$name.element;
		var proxyHandler = _membersByName$name.proxyHandler;
		var totalByteOffset = _membersByName$name.totalByteOffset;
		var names = members.map(function (member) {
		return member.name;
		});
		var membersByName = members.reduce(function (obj, member) {
		/* eslint-disable no-param-reassign */
		obj[member.name] = {
		element: member.element,
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset,
		proxyHandler: viewVisitor[member.element.tag]
		};
		/* eslint-enable */
		return obj;
		}, Object.create(null));

		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(name, value) {
		var _membersByName$name2 = membersByName[name];
		var writer = _membersByName$name2.writer;
		var totalByteOffset = _membersByName$name2.totalByteOffset;
		return createObjectProxy(names, {
		get: function get(name) {
		var _membersByName$name = membersByName[name];
		var element = _membersByName$name.element;
		var proxyHandler = _membersByName$name.proxyHandler;
		var totalByteOffset = _membersByName$name.totalByteOffset;

		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Bitfield: function Bitfield(_ref8, dataView, byteOffset) {
		var element = _ref8.element;
		var members = _ref8.members;
		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(name, value) {
		var _membersByName$name2 = membersByName[name];
		var writer = _membersByName$name2.writer;
		var totalByteOffset = _membersByName$name2.totalByteOffset;

		var reader = createReader(element);
		var writer = createWriter(element);
		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Bitfield: function Bitfield(_ref8, dataView, byteOffset) {
		var element = _ref8.element;
		var members = _ref8.members;

		var names = members.map(function (member) {
		return member.name;
		});
		var reader = createReader(element);
		var writer = createWriter(element);

		var currentBitOffset = 0;
		var infoByName = members.reduce(function (info, _ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;
		var names = members.map(function (member) {
		return member.name;
		});

		var bitOffset = currentBitOffset;
		var mask = createMask(bits);
		var clearMask = ~(mask << bitOffset);
		/* eslint-disable no-param-reassign */
		info[name] = { bitOffset: bitOffset, mask: mask, clearMask: clearMask };
		/* eslint-enable */
		currentBitOffset += bits;
		return info;
		}, Object.create(null));
		var currentBitOffset = 0;
		var infoByName = members.reduce(function (info, _ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;

		return createObjectProxy(names, {
		get: function get(name) {
		var _infoByName$name = infoByName[name];
		var bitOffset = _infoByName$name.bitOffset;
		var mask = _infoByName$name.mask;
		var bitOffset = currentBitOffset;
		var mask = createMask(bits);
		var clearMask = ~(mask << bitOffset);
		/* eslint-disable no-param-reassign */
		info[name] = { bitOffset: bitOffset, mask: mask, clearMask: clearMask };
		/* eslint-enable */
		currentBitOffset += bits;
		return info;
		}, Object.create(null));

		var elementValue = reader(dataView, byteOffset);
		return elementValue >>> bitOffset & mask;
		},
		set: function set(name, value) {
		var _infoByName$name2 = infoByName[name];
		var bitOffset = _infoByName$name2.bitOffset;
		var clearMask = _infoByName$name2.clearMask;
		var mask = _infoByName$name2.mask;
		return createObjectProxy(names, {
		get: function get(name) {
		var _infoByName$name = infoByName[name];
		var bitOffset = _infoByName$name.bitOffset;
		var mask = _infoByName$name.mask;

		var elementValue = reader(dataView, byteOffset);
		elementValue &= clearMask;
		elementValue \|= (value & mask) << bitOffset;
		writer(dataView, byteOffset, elementValue);
		}
		});
		},
		Buffer: function Buffer(_ref10, dataView, byteOffset) {
		var byteLength = _ref10.byteLength;
		var elementValue = reader(dataView, byteOffset);
		return elementValue >>> bitOffset & mask;
		},
		set: function set(name, value) {
		var _infoByName$name2 = infoByName[name];
		var bitOffset = _infoByName$name2.bitOffset;
		var clearMask = _infoByName$name2.clearMask;
		var mask = _infoByName$name2.mask;

		return new Uint8Array(dataView.buffer, byteOffset, byteLength);
		}
		});
		var elementValue = reader(dataView, byteOffset);
		elementValue &= clearMask;
		elementValue \|= (value & mask) << bitOffset;
		writer(dataView, byteOffset, elementValue);
		}
		});
		},
		Buffer: function Buffer(_ref10, dataView, byteOffset) {
		var byteLength = _ref10.byteLength;

		function createView(type) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];
		var useProxy = arguments[2];
		return new Uint8Array(dataView.buffer, byteOffset, byteLength);
		}
		});

		var dataView = getDataView(buffer);
		function createView(type) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];
		var useProxy = arguments[2];

		var viewHandler = viewVisitor[type.tag];
		var writer = createWriter(type);
		var dataView = getDataView(buffer);

		var view = {
		buffer: dataView.buffer,
		byteOffset: dataView.byteOffset,
		byteLength: dataView.byteLength
		};
		var viewHandler = viewVisitor[type.tag];
		var writer = createWriter(type);

		var cache = void 0;
		Object.defineProperty(view, 'value', {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = viewHandler(type, dataView, 0, useProxy);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		set: function set(value) {
		writer(dataView, 0, value);
		var view = {
		buffer: dataView.buffer,
		byteOffset: dataView.byteOffset,
		byteLength: dataView.byteLength
		};

		var cache = void 0;
		Object.defineProperty(view, 'value', {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		});
		var result = viewHandler(type, dataView, 0, useProxy);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		set: function set(value) {
		writer(dataView, 0, value);
		}
		});

		return Object.seal(view);
		}
		return Object.seal(view);
		}

		// Since type schemas are immutable, we should always create the same code for the same object
		var createReaderMemoized = maybeMemoize(createReader);
		var createWriterMemoized = maybeMemoize(createWriter);
		/* eslint-disable no-shadow */
		// Since type schemas are immutable, we should always create the same code for the same object
		var createReaderMemoized = maybeMemoize(createReader);
		var createWriterMemoized = maybeMemoize(createWriter);

		/**
		* Create a decode function for converting a buffer into its JavaScript representation
		*/
		function createDecoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		/**
		* Create a decode function for converting a buffer into its JavaScript representation
		*/
		function createDecoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		}
		var reader = createReaderMemoized(type);
		return function decode(buffer, data) {
		if (buffer === undefined) {
		throw new TypeError('You must specify the buffer the decode');
		}
		var reader = createReaderMemoized(type);
		return function decode(buffer, data) {
		if (buffer === undefined) {
		throw new TypeError('You must specify the buffer the decode');
		}
		var dataView = getDataView(buffer);
		return reader(dataView, 0, data);
		};
		var dataView = getDataView(buffer);
		return reader(dataView, 0, data);
		};
		}

		/**
		* Create an encode function for serializing a JavaScript object or value into a buffer
		*/
		function createEncoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		}
		var writer = createWriterMemoized(type);
		return function encode(data) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];

		/**
		* Create an encode function for serializing a JavaScript object or value into a buffer
		*/
		function createEncoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		if (data === undefined) {
		throw new TypeError('You must specify the data to encode');
		}
		var writer = createWriterMemoized(type);
		return function encode(data) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];
		var dataView = getDataView(buffer);
		if (sizeof(dataView) < sizeof(type)) {
		throw new RangeError('The provided buffer is too small to store the encoded type');
		}
		writer(dataView, 0, data);
		return buffer;
		};
		}

		if (data === undefined) {
		throw new TypeError('You must specify the data to encode');
		}
		var dataView = getDataView(buffer);
		if (sizeof(dataView) < sizeof(type)) {
		throw new RangeError('The provided buffer is too small to store the encoded type');
		}
		writer(dataView, 0, data);
		return buffer;
		};
		}
		/**
		* Create a converter object that contains both an encoder and a decoder
		*/
		function createConverter(type) {
		/* istanbul ignore next */
		var encode = createEncoder(type);
		/* istanbul ignore next */
		var decode = createDecoder(type);
		/* istanbul ignore next */
		return { type: type, encode: encode, decode: decode };
		}

		/**
		* Create a converter object that contains both an encoder and a decoder
		*/
		function createConverter(type) {
		/* istanbul ignore next */
		var encode = createEncoder(type);
		/* istanbul ignore next */
		var decode = createDecoder(type);
		/* istanbul ignore next */
		return { type: type, encode: encode, decode: decode };
		}
		/**
		* Converting a buffer into its JavaScript representation
		* @deprecated
		*/
		function decode(type, buffer, data) {
		var decode = createDecoder(type);
		return decode(buffer, data);
		}

		/**
		* Converting a buffer into its JavaScript representation
		* @deprecated
		*/
		function decode(type, buffer, data) {
		var decode = createDecoder(type);
		return decode(buffer, data);
		}
		/**
		* Serialize a JavaScript object or value into a buffer
		* @deprecated
		*/
		function encode(type, data, buffer) {
		var encode = createEncoder(type);
		return encode(data, buffer);
		}

		/**
		* Serialize a JavaScript object or value into a buffer
		* @deprecated
		*/
		function encode(type, data, buffer) {
		var encode = createEncoder(type);
		return encode(data, buffer);
		}
		exports.systemLittleEndian = systemLittleEndian;
		exports.sizeof = sizeof;
		exports.alignof = alignof;
		exports.strideof = strideof;
		exports.boolean = boolean;
		exports.bool = bool;
		exports.int8 = int8;
		exports.uint8 = uint8;
		exports.int16 = int16;
		exports.int16le = int16le;
		exports.int16be = int16be;
		exports.uint16 = uint16;
		exports.uint16le = uint16le;
		exports.uint16be = uint16be;
		exports.int32 = int32;
		exports.int32le = int32le;
		exports.int32be = int32be;
		exports.uint32 = uint32;
		exports.uint32le = uint32le;
		exports.uint32be = uint32be;
		exports.float32 = float32;
		exports.float32le = float32le;
		exports.float32be = float32be;
		exports.float64 = float64;
		exports.float64le = float64le;
		exports.float64be = float64be;
		exports.string = string;
		exports.array = array;
		exports.tuple = tuple;
		exports.struct = struct;
		exports.bitfield = bitfield;
		exports.buffer = buffer;
		exports.createDecoder = createDecoder;
		exports.createEncoder = createEncoder;
		exports.createConverter = createConverter;
		exports.decode = decode;
		exports.encode = encode;
		exports.createView = createView;

		exports.systemLittleEndian = systemLittleEndian;
		exports.sizeof = sizeof;
		exports.alignof = alignof;
		exports.strideof = strideof;
		exports.boolean = boolean;
		exports.bool = bool;
		exports.int8 = int8;
		exports.uint8 = uint8;
		exports.int16 = int16;
		exports.int16le = int16le;
		exports.int16be = int16be;
		exports.uint16 = uint16;
		exports.uint16le = uint16le;
		exports.uint16be = uint16be;
		exports.int32 = int32;
		exports.int32le = int32le;
		exports.int32be = int32be;
		exports.uint32 = uint32;
		exports.uint32le = uint32le;
		exports.uint32be = uint32be;
		exports.float32 = float32;
		exports.float32le = float32le;
		exports.float32be = float32be;
		exports.float64 = float64;
		exports.float64le = float64le;
		exports.float64be = float64be;
		exports.string = string;
		exports.array = array;
		exports.tuple = tuple;
		exports.struct = struct;
		exports.bitfield = bitfield;
		exports.buffer = buffer;
		exports.createDecoder = createDecoder;
		exports.createEncoder = createEncoder;
		exports.createConverter = createConverter;
		exports.decode = decode;
		exports.encode = encode;
		exports.createView = createView;
		Object.defineProperty(exports, '__esModule', { value: true });

		Object.defineProperty(exports, '__esModule', { value: true });

		})));
		//# sourceMappingURL=structly.js.map

+1

-1

dist/structly.js.map

		@@ -1,1 +0,1 @@
		{"version":3,"file":null,"sources":["../src/utils.js","../src/types.js","../src/visitors/reader.js","../src/visitors/writer.js","../src/visitors/view.js","../src/converters.js"],"sourcesContent":["/*\n Whether the running system is little endian (true = LE, false = BE)\n /\nexport const systemLittleEndian = (typeof os === 'object')\n / eslint-disable no-undef /\n ? os.endianness() === 'LE'\n / eslint-enable no-undef /\n : new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;\n\n/\n Gets the closest multiple of byteAlignment from byteOffset (base-2 only)\n /\nexport function align(byteOffset, byteAlignment) {\n / eslint-disable no-mixed-operators /\n return (byteOffset + byteAlignment - 1) & ~(byteAlignment - 1);\n}\n\n/\n The byte alignment of the given type\n /\nexport function alignof({ byteAlignment = 0 } = {}) {\n return byteAlignment;\n}\n\n/\n The byte size of the type, excluding alignment padding\n /\nexport function sizeof({ byteLength = 0 } = {}) {\n return byteLength;\n}\n\n/\n The byte size of the type, including alignment padding\n /\nexport function strideof(type, byteAlignment = alignof(type)) {\n return align(sizeof(type), byteAlignment);\n}\n\nexport function createMask(bits) {\n return (bits <= 0) ? 0 : 0xFFFFFFFF >>> (32 - bits);\n}\n\nexport function createVariable(name, stackDepth = 0) {\n return `${name}${stackDepth}`;\n}\n\n/ eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax /\nexport const assign = Object.assign \|\|/ istanbul ignore next / function assign(target) {\n if (target == null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n target = Object(target);\n for (let index = 1, len = arguments.length; index < len; index++) {\n const source = Object(arguments[index]);\n if (source != null) {\n for (const key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n }\n return target;\n};\n\nexport function getDataView(data) {\n if (data instanceof ArrayBuffer) {\n return new DataView(data);\n } else if (ArrayBuffer.isView(data)) {\n const { buffer, byteOffset, byteLength } = data;\n return new DataView(buffer, byteOffset, byteLength);\n }\n throw new TypeError('Invalid input data');\n}\n\n// Memoize if WeakMap if supported, otherwise passthrough\nexport const maybeMemoize = (() => {\n if (typeof WeakMap === 'function') {\n return function memoize(fn) {\n const cache = new WeakMap();\n return function memoized(key) {\n if (!cache.has(key)) {\n cache.set(key, fn(key));\n }\n return cache.get(key);\n };\n };\n }\n / istanbul ignore next /\n return function passthrough(fn) {\n return fn;\n };\n})();\n","/ eslint-disable no-param-reassign /\nimport { systemLittleEndian, align, assign, alignof } from './utils';\n\nfunction createNumberType(kind, size, littleEndian = systemLittleEndian) {\n return Object.freeze({\n tag: 'Number',\n kind,\n byteLength: size,\n byteAlignment: size,\n littleEndian,\n });\n}\n\nexport const boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });\nexport const bool = boolean;\n\nexport const int8 = createNumberType('Int8', 1);\nexport const uint8 = createNumberType('Uint8', 1);\n\nexport const int16 = createNumberType('Int16', 2);\nexport const int16le = createNumberType('Int16', 2, true);\nexport const int16be = createNumberType('Int16', 2, false);\n\nexport const uint16 = createNumberType('Uint16', 2);\nexport const uint16le = createNumberType('Uint16', 2, true);\nexport const uint16be = createNumberType('Uint16', 2, false);\n\nexport const int32 = createNumberType('Int32', 4);\nexport const int32le = createNumberType('Int32', 4, true);\nexport const int32be = createNumberType('Int32', 4, false);\n\nexport const uint32 = createNumberType('Uint32', 4);\nexport const uint32le = createNumberType('Uint32', 4, true);\nexport const uint32be = createNumberType('Uint32', 4, false);\n\nexport const float32 = createNumberType('Float32', 4);\nexport const float32le = createNumberType('Float32', 4, true);\nexport const float32be = createNumberType('Float32', 4, false);\n\nexport const float64 = createNumberType('Float64', 8);\nexport const float64le = createNumberType('Float64', 8, true);\nexport const float64be = createNumberType('Float64', 8, false);\n\n/\n Create a string type.\n /\nexport function string(maxLength, encoding = 'utf8') {\n if (maxLength === undefined) {\n throw new TypeError('You must specify a max length for the string!');\n }\n\n return Object.freeze({\n tag: 'String',\n byteLength: maxLength,\n byteAlignment: 1,\n encoding,\n });\n}\n\n/\n Create an array type.\n /\nexport function array(element, length, { pack } = {}) {\n if (element === undefined) {\n throw new TypeError('You must specify the array element type!');\n }\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the array!');\n }\n\n return Object.freeze({\n tag: 'Array',\n byteLength: length element.byteLength,\n byteAlignment: pack \|\| element.byteAlignment,\n length,\n element,\n });\n}\n\nfunction offsetHelper(tag, elements, inject, pack = 0) {\n let byteOffset = 0;\n let maxByteAlignment = 0;\n\n const members = Object.freeze(elements.map(element => {\n const { byteLength, byteAlignment } = element;\n\n byteOffset = align(byteOffset, pack \|\| byteAlignment);\n\n const result = { byteOffset, element };\n\n if (inject !== undefined) {\n assign(result, inject(element));\n }\n\n byteOffset += byteLength;\n maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);\n\n return Object.freeze(result);\n }));\n\n return Object.freeze({\n tag,\n byteLength: byteOffset,\n byteAlignment: pack \|\| maxByteAlignment,\n members,\n });\n}\n\n/*\n Create a tuple type.\n /\nexport function tuple(...elements) {\n return offsetHelper('Tuple', elements);\n}\n\nfunction injectName({ name }) {\n return { name };\n}\n\n/\n Create a struct type.\n /\nexport function struct(members, { reorder = false, pack = 0 } = {}) {\n if (members === undefined) {\n throw new TypeError('You must specify the struct members!');\n }\n\n pack = Number(pack);\n const memberNames = Object.keys(members);\n\n if (reorder) {\n memberNames.sort((a, b) => alignof(members[a]) - alignof(members[b]));\n }\n\n const sortedMembers = memberNames.map(name => assign({ name }, members[name]));\n\n return offsetHelper('Struct', sortedMembers, injectName, pack);\n}\n\n/\n Create a bitfield type.\n /\nexport function bitfield(members, element = uint32) {\n if (members === undefined) {\n throw new TypeError('You must specify the bitfield members!');\n }\n\n const memberNames = Object.keys(members);\n const totalBits = memberNames.reduce((sum, name) => sum + members[name], 0);\n\n if (totalBits > 8 element.byteLength) {\n throw new RangeError('Sum of bitfield widths is too large for storage element');\n }\n\n return Object.freeze({\n tag: 'Bitfield',\n byteLength: element.byteLength,\n byteAlignment: element.byteAlignment,\n members: Object.freeze(memberNames.map(name => Object.freeze({ name, bits: members[name] }))),\n element,\n });\n}\n\nexport function buffer(length) {\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the buffer!');\n }\n\n return Object.freeze({\n tag: 'Buffer',\n byteLength: length,\n byteAlignment: 1,\n });\n}\n","/* eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\n\nexport const readerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `${resultVar} = dataView.get${kind}(${byteOffsetVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `${resultVar} = Boolean(dataView.getUint8(${byteOffsetVar}));`;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const arrayVar = createVariable('array', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n var ${arrayVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n var ${indexVar} = ${arrayVar}.indexOf(0);\n if (${indexVar} >= 0) {\n ${arrayVar} = ${arrayVar}.subarray(0, ${indexVar});\n }\n ${(() => {\n if (typeof Buffer === 'function') {\n return `${resultVar} = new Buffer(${arrayVar}).toString(${JSON.stringify(encoding)});`;\n }\n\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return `${resultVar} = new TextDecoder(${JSON.stringify(encoding)}).decode(${arrayVar});`;\n }\n\n / istanbul ignore next /\n return `${resultVar} = String.fromCharCode.apply(String, ${arrayVar});`;\n })()}\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${length});\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerResultVar} = ${resultVar}[${indexVar}];\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${indexVar}] = ${innerResultVar};\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${members.length});\n }\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerResultVar} = ${resultVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${i}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyStruct = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyStruct};\n }\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerResultVar} = ${resultVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyBitfield = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyBitfield};\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerResultVar};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${members.map(({ name, bits }) => `\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar} & ${createMask(bits)};\n ${innerResultVar} >>>= ${bits};\n `).join('\\n')}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${resultVar} === void 0 \|\|\n ${resultVar}.buffer !== dataView.buffer \|\|\n ${resultVar}.byteLength !== ${byteOffsetVar} \|\|\n ${resultVar}.byteOffset !== ${byteLength}) {\n ${resultVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n }\n `;\n },\n});\n\nexport function createReader(type) {\n const resultVar = createVariable('result');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, resultVar, `\n \"use strict\";\n ${readerVisitor[type.tag](type, 0)}\n return ${resultVar};\n `);\n}\n","/ eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\n\nexport const writerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `dataView.set${kind}(${byteOffsetVar}, ${dataVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `dataView.setUint8(${byteOffsetVar}, Number(${dataVar}));`;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const lengthVar = createVariable('length', stackDepth);\n\n if (typeof Buffer === 'function') {\n return `\n new Buffer(${dataVar}, ${JSON.stringify(encoding)}).copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ${byteOffsetVar});\n `;\n }\n\n / istanbul ignore next /\n if (typeof TextEncoder === 'function') {\n return `\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(${JSON.stringify(encoding)}).encode(${dataVar}));\n `;\n }\n\n / istanbul ignore next /\n return `\n ${dataVar} = new String(${dataVar});\n for (var ${indexVar} = 0, ${lengthVar} = ${dataVar}.length; ${indexVar} < ${lengthVar}; ++${indexVar}) {\n dataView.setUint8(${byteOffsetVar} + ${indexVar}, ${dataVar}.charCodeAt(${indexVar}));\n }\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerDataVar} = ${dataVar}[${indexVar}];\n ${writerVisitor[element.tag](element, innerStackDepth)}\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerDataVar} = ${dataVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerDataVar} = ${dataVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerDataVar} = 0;\n ${members.slice().reverse().map(({ name, bits }) => `\n ${innerDataVar} <<= ${bits};\n ${innerDataVar} \|= ${dataVar}[${JSON.stringify(name)}] & ${createMask(bits)};\n `).join('\\n')}\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${dataVar}.buffer !== dataView.buffer \|\|\n ${dataVar}.byteLength !== ${byteOffsetVar} \|\|\n ${dataVar}.byteOffset !== ${byteLength}) {\n new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength}).set(${dataVar});\n }\n `;\n },\n});\n\nexport function createWriter(type) {\n const dataVar = createVariable('data');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, dataVar, `\n \"use strict\";\n ${writerVisitor[type.tag](type, 0)}\n `);\n}\n","import { createReader } from './reader';\nimport { createWriter } from './writer';\nimport { sizeof, strideof, getDataView, createMask } from '../utils';\n\nconst SUPPORTS_PROXY = typeof Proxy === 'function';\n\nfunction createArrayProxy(length, { get, set, useProxy = SUPPORTS_PROXY } = {}) {\n const array = new Array(length);\n\n // Lazily compute properties if proxy is available\n if (useProxy) {\n return new Proxy(array, {\n has(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n return (index >= 0) && (index < length);\n }\n return key in target;\n },\n\n get(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n if ((index >= 0) && (index < length)) {\n let cache;\n if (key in target) {\n cache = target[key];\n } else {\n cache = get(index);\n if (typeof cache === 'object') {\n / eslint-disable no-param-reassign /\n target[key] = cache;\n / eslint-enable /\n }\n }\n return cache;\n }\n }\n return target[key];\n },\n\n set(target, key, value) {\n // Check that key is either a number or a numeric string\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n // Check bounds\n if ((index >= 0) && (index < length)) {\n return set(index, value) \|\| true;\n }\n }\n // Don't allow any other properties to be changed\n return false;\n },\n });\n }\n\n // Eagerly compute properties using Object.defineProperty\n for (let i = 0; i < length; ++i) {\n let cache;\n Object.defineProperty(array, i, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(i);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, i),\n });\n }\n\n return Object.freeze(array);\n}\n\nfunction createObjectProxy(keys, { get, set } = {}) {\n const object = {};\n\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n let cache;\n Object.defineProperty(object, key, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(key);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, key),\n });\n }\n\n return Object.freeze(object);\n}\n\nexport const viewVisitor = Object.freeze({\n Number({ littleEndian, kind }, dataView, byteOffset) {\n return dataView[`get${kind}`](byteOffset, littleEndian);\n },\n\n Boolean(_, dataView, byteOffset) {\n return Boolean(dataView.getUint8(byteOffset));\n },\n\n String({ byteLength, encoding }, dataView, byteOffset) {\n let array = new Uint8Array(dataView.buffer, byteOffset, byteLength);\n\n const index = array.indexOf(0);\n if (index >= 0) {\n array = array.subarray(0, index);\n }\n\n if (typeof Buffer === 'function') {\n return new Buffer(array).toString(encoding);\n }\n\n / eslint-disable no-undef /\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return new TextDecoder(encoding).decode(array);\n }\n / eslint-enable no-undef /\n\n / eslint-disable prefer-spread /\n / istanbul ignore next /\n return String.fromCharCode.apply(String, array);\n / eslint-enable prefer-spread /\n },\n\n Array({ length, element }, dataView, byteOffset, useProxy = length > 20) {\n const elementProxyHandler = viewVisitor[element.tag];\n const elementWriter = createWriter(element);\n const byteStride = strideof(element);\n\n return createArrayProxy(length, {\n useProxy,\n get(i) {\n const elementByteOffset = byteOffset + (byteStride i);\n return elementProxyHandler(element, dataView, elementByteOffset, useProxy);\n },\n set(i, value) {\n const elementByteOffset = byteOffset + (byteStride * i);\n elementWriter(dataView, 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		{"version":3,"file":null,"sources":["../src/utils.js","../src/types.js","../src/visitors/reader.js","../src/visitors/writer.js","../src/visitors/view.js","../src/converters.js"],"sourcesContent":["/*\n Whether the running system is little endian (true = LE, false = BE)\n /\nexport const systemLittleEndian = (typeof os === 'object')\n / eslint-disable no-undef /\n ? os.endianness() === 'LE'\n / eslint-enable no-undef /\n : new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;\n\n/\n Gets the closest multiple of byteAlignment from byteOffset (base-2 only)\n /\nexport function align(byteOffset, byteAlignment) {\n / eslint-disable no-mixed-operators /\n return (byteOffset + byteAlignment - 1) & ~(byteAlignment - 1);\n}\n\n/\n The byte alignment of the given type\n /\nexport function alignof({ byteAlignment = 0 } = {}) {\n return byteAlignment;\n}\n\n/\n The byte size of the type, excluding alignment padding\n /\nexport function sizeof({ byteLength = 0 } = {}) {\n return byteLength;\n}\n\n/\n The byte size of the type, including alignment padding\n /\nexport function strideof(type, byteAlignment = alignof(type)) {\n return align(sizeof(type), byteAlignment);\n}\n\nexport function createMask(bits) {\n return (bits <= 0) ? 0 : 0xFFFFFFFF >>> (32 - bits);\n}\n\nexport function createVariable(name, stackDepth = 0) {\n return `${name}${stackDepth}`;\n}\n\n/ eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax /\nexport const assign = Object.assign \|\|/ istanbul ignore next / function assign(target) {\n if (target == null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n target = Object(target);\n for (let index = 1, len = arguments.length; index < len; index++) {\n const source = Object(arguments[index]);\n if (source != null) {\n for (const key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n }\n return target;\n};\n\nexport 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kind,\n byteLength: size,\n byteAlignment: size,\n littleEndian,\n });\n}\n\nexport const boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });\nexport const bool = boolean;\n\nexport const int8 = createNumberType('Int8', 1);\nexport const uint8 = createNumberType('Uint8', 1);\n\nexport const int16 = createNumberType('Int16', 2);\nexport const int16le = createNumberType('Int16', 2, true);\nexport const int16be = createNumberType('Int16', 2, false);\n\nexport const uint16 = createNumberType('Uint16', 2);\nexport const uint16le = createNumberType('Uint16', 2, true);\nexport const uint16be = createNumberType('Uint16', 2, false);\n\nexport const int32 = createNumberType('Int32', 4);\nexport const int32le = createNumberType('Int32', 4, true);\nexport const int32be = createNumberType('Int32', 4, false);\n\nexport const uint32 = createNumberType('Uint32', 4);\nexport const uint32le = createNumberType('Uint32', 4, true);\nexport const uint32be = createNumberType('Uint32', 4, false);\n\nexport const float32 = createNumberType('Float32', 4);\nexport const float32le = createNumberType('Float32', 4, true);\nexport const float32be = createNumberType('Float32', 4, false);\n\nexport const float64 = createNumberType('Float64', 8);\nexport const float64le = createNumberType('Float64', 8, true);\nexport const float64be = createNumberType('Float64', 8, false);\n\n/\n Create a string type.\n /\nexport function string(maxLength, encoding = 'utf8') {\n if (maxLength === undefined) {\n throw new TypeError('You must specify a max length for the string!');\n }\n\n return Object.freeze({\n tag: 'String',\n byteLength: maxLength,\n byteAlignment: 1,\n encoding,\n });\n}\n\n/\n Create an array type.\n /\nexport function array(element, length, { pack } = {}) {\n if (element === undefined) {\n throw new TypeError('You must specify the array element type!');\n }\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the array!');\n }\n\n return Object.freeze({\n tag: 'Array',\n byteLength: length element.byteLength,\n byteAlignment: pack \|\| element.byteAlignment,\n length,\n element,\n });\n}\n\nfunction offsetHelper(tag, elements, inject, pack = 0) {\n let byteOffset = 0;\n let maxByteAlignment = 0;\n\n const members = Object.freeze(elements.map(element => {\n const { byteLength, byteAlignment } = element;\n\n byteOffset = align(byteOffset, pack \|\| byteAlignment);\n\n const result = { byteOffset, element };\n\n if (inject !== undefined) {\n assign(result, inject(element));\n }\n\n byteOffset += byteLength;\n maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);\n\n return Object.freeze(result);\n }));\n\n return Object.freeze({\n tag,\n byteLength: byteOffset,\n byteAlignment: pack \|\| maxByteAlignment,\n members,\n });\n}\n\n/*\n Create a tuple type.\n /\nexport function tuple(...elements) {\n return offsetHelper('Tuple', elements);\n}\n\nfunction injectName({ name }) {\n return { name };\n}\n\n/\n Create a struct type.\n /\nexport function struct(members, { reorder = false, pack = 0 } = {}) {\n if (members === undefined) {\n throw new TypeError('You must specify the struct members!');\n }\n\n pack = Number(pack);\n const memberNames = Object.keys(members);\n\n if (reorder) {\n memberNames.sort((a, b) => alignof(members[a]) - alignof(members[b]));\n }\n\n const sortedMembers = memberNames.map(name => assign({ name }, members[name]));\n\n return offsetHelper('Struct', sortedMembers, injectName, pack);\n}\n\n/\n Create a bitfield type.\n /\nexport function bitfield(members, element = uint32) {\n if (members === undefined) {\n throw new TypeError('You must specify the bitfield members!');\n }\n\n const memberNames = Object.keys(members);\n const totalBits = memberNames.reduce((sum, name) => sum + members[name], 0);\n\n if (totalBits > 8 element.byteLength) {\n throw new RangeError('Sum of bitfield widths is too large for storage element');\n }\n\n return Object.freeze({\n tag: 'Bitfield',\n byteLength: element.byteLength,\n byteAlignment: element.byteAlignment,\n members: Object.freeze(memberNames.map(name => Object.freeze({ name, bits: members[name] }))),\n element,\n });\n}\n\nexport function buffer(length) {\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the buffer!');\n }\n\n return Object.freeze({\n tag: 'Buffer',\n byteLength: length,\n byteAlignment: 1,\n });\n}\n","/* eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\nimport { uint8 } from '../types';\n\nexport const readerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `${resultVar} = dataView.get${kind}(${byteOffsetVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n\n return `\n ${readerVisitor.Number(uint8, stackDepth)}\n ${resultVar} = Boolean(${resultVar});\n `;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const arrayVar = createVariable('array', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n var ${arrayVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n var ${indexVar} = Array.prototype.indexOf.call(${arrayVar}, 0);\n ${(() => {\n if (typeof Buffer === 'function') {\n return `\n ${resultVar} = new Buffer(${arrayVar}.buffer)\n .slice(${byteOffsetVar}, ${byteOffsetVar} + (${indexVar} >= 0 ? ${indexVar} : ${byteLength}))\n .toString(${JSON.stringify(encoding)});\n `;\n }\n\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return `\n if (${indexVar} >= 0) {\n ${arrayVar} = new Uint8Array(${arrayVar}.buffer, ${byteOffsetVar}, ${indexVar});\n }\n ${resultVar} = new TextDecoder(${JSON.stringify(encoding)}).decode(${arrayVar});\n `;\n }\n\n / istanbul ignore next /\n return `\n if (${indexVar} >= 0) {\n ${arrayVar} = new Uint8Array(${arrayVar}.buffer, ${byteOffsetVar}, ${indexVar});\n }\n ${resultVar} = String.fromCharCode.apply(String, ${arrayVar});\n `;\n })()}\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${length});\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerResultVar} = ${resultVar}[${indexVar}];\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${indexVar}] = ${innerResultVar};\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${members.length});\n }\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerResultVar} = ${resultVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${i}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyStruct = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyStruct};\n }\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerResultVar} = ${resultVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyBitfield = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyBitfield};\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerResultVar};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${members.map(({ name, bits }) => `\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar} & ${createMask(bits)};\n ${innerResultVar} >>>= ${bits};\n `).join('\\n')}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${resultVar} === void 0 \|\|\n ${resultVar}.buffer !== dataView.buffer \|\|\n ${resultVar}.byteOffset !== ${byteOffsetVar} \|\|\n ${resultVar}.byteLength !== ${byteLength}) {\n ${resultVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n }\n `;\n },\n});\n\nexport function createReader(type) {\n const resultVar = createVariable('result');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, resultVar, `\n \"use strict\";\n ${readerVisitor[type.tag](type, 0)}\n return ${resultVar};\n `);\n}\n","/ eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\nimport { uint8 } from '../types';\n\nexport const writerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `dataView.set${kind}(${byteOffsetVar}, ${dataVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n\n return `\n ${dataVar} = Number(${dataVar});\n ${writerVisitor.Number(uint8, stackDepth)}\n `;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const lengthVar = createVariable('length', stackDepth);\n\n if (typeof Buffer === 'function') {\n return `\n new Buffer(${dataVar}, ${JSON.stringify(encoding)}).copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ${byteOffsetVar});\n `;\n }\n\n / istanbul ignore next /\n if (typeof TextEncoder === 'function') {\n return `\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(${JSON.stringify(encoding)}).encode(${dataVar}));\n `;\n }\n\n / istanbul ignore next /\n return `\n ${dataVar} = new String(${dataVar});\n for (var ${indexVar} = 0, ${lengthVar} = ${dataVar}.length; ${indexVar} < ${lengthVar}; ++${indexVar}) {\n dataView.setUint8(${byteOffsetVar} + ${indexVar}, ${dataVar}.charCodeAt(${indexVar}));\n }\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerDataVar} = ${dataVar}[${indexVar}];\n ${writerVisitor[element.tag](element, innerStackDepth)}\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerDataVar} = ${dataVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerDataVar} = ${dataVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerDataVar} = 0;\n ${members.slice().reverse().map(({ name, bits }) => `\n ${innerDataVar} <<= ${bits};\n ${innerDataVar} \|= ${dataVar}[${JSON.stringify(name)}] & ${createMask(bits)};\n `).join('\\n')}\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${dataVar}.buffer !== dataView.buffer \|\|\n ${dataVar}.byteOffset !== ${byteOffsetVar} \|\|\n ${dataVar}.byteLength !== ${byteLength}) {\n new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength}).set(${dataVar});\n }\n `;\n },\n});\n\nexport function createWriter(type) {\n const dataVar = createVariable('data');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, dataVar, `\n \"use strict\";\n ${writerVisitor[type.tag](type, 0)}\n `);\n}\n","import { createReader } from './reader';\nimport { createWriter } from './writer';\nimport { sizeof, strideof, getDataView, createMask } from '../utils';\n\nconst SUPPORTS_PROXY = typeof Proxy === 'function';\n\nfunction createArrayProxy(length, { get, set, useProxy = SUPPORTS_PROXY } = {}) {\n const array = new Array(length);\n\n // Lazily compute properties if proxy is available\n if (useProxy) {\n return new Proxy(array, {\n has(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n return (index >= 0) && (index < length);\n }\n return key in target;\n },\n\n get(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n if ((index >= 0) && (index < length)) {\n let cache;\n if (key in target) {\n cache = target[key];\n } else {\n cache = get(index);\n if (typeof cache === 'object') {\n / eslint-disable no-param-reassign /\n target[key] = cache;\n / eslint-enable /\n }\n }\n return cache;\n }\n }\n return target[key];\n },\n\n set(target, key, value) {\n // Check that key is either a number or a numeric string\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n // Check bounds\n if ((index >= 0) && (index < length)) {\n return set(index, value) \|\| true;\n }\n }\n // Don't allow any other properties to be changed\n return false;\n },\n });\n }\n\n // Eagerly compute properties using Object.defineProperty\n for (let i = 0; i < length; ++i) {\n let cache;\n Object.defineProperty(array, i, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(i);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, i),\n });\n }\n\n return Object.freeze(array);\n}\n\nfunction createObjectProxy(keys, { get, set } = {}) {\n const object = {};\n\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n let cache;\n Object.defineProperty(object, key, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(key);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, key),\n });\n }\n\n return Object.freeze(object);\n}\n\nexport const viewVisitor = Object.freeze({\n Number({ littleEndian, kind }, dataView, byteOffset) {\n return dataView[`get${kind}`](byteOffset, littleEndian);\n },\n\n Boolean(_, dataView, byteOffset) {\n return Boolean(dataView.getUint8(byteOffset));\n },\n\n String({ byteLength, encoding }, dataView, byteOffset) {\n let array = new Uint8Array(dataView.buffer, byteOffset, byteLength);\n\n const index = Array.prototype.indexOf.call(array, 0);\n if (index >= 0) {\n array = array.subarray(0, index);\n }\n\n if (typeof Buffer === 'function') {\n return new Buffer(array).toString(encoding);\n }\n\n / eslint-disable no-undef /\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return new TextDecoder(encoding).decode(array);\n }\n / eslint-enable no-undef /\n\n / eslint-disable prefer-spread /\n / istanbul ignore next /\n return String.fromCharCode.apply(String, array);\n / eslint-enable prefer-spread /\n },\n\n Array({ length, element }, dataView, byteOffset, useProxy = length > 20) {\n const elementProxyHandler = viewVisitor[element.tag];\n const elementWriter = createWriter(element);\n const byteStride = strideof(element);\n\n return createArrayProxy(length, {\n useProxy,\n get(i) {\n const elementByteOffset = byteOffset + (byteStride i);\n return elementProxyHandler(element, dataView, elementByteOffset, useProxy);\n },\n set(i, value) {\n const elementByteOffset = byteOffset + (byteStride * i);\n elementWriter(dataView, elementByteOffset, value);\n },\n });\n },\n\n Tuple({ members }, dataView, byteOffset, useProxy) {\n const handlers = members.map(member => ({\n element: member.element,\n proxyHandler: viewVisitor[member.element.tag],\n writer: createWriter(member.element),\n totalByteOffset: byteOffset + member.byteOffset,\n }));\n\n return createArrayProxy(members.length, {\n useProxy: false,\n get(i) {\n const { element, proxyHandler, totalByteOffset } = handlers[i];\n return proxyHandler(element, dataView, totalByteOffset, useProxy);\n },\n set(i, value) {\n const { writer, totalByteOffset } = handlers[i];\n writer(dataView, totalByteOffset, value);\n },\n });\n },\n\n Struct({ members }, dataView, byteOffset, useProxy) {\n const names = members.map(member => member.name);\n const membersByName = members.reduce((obj, member) => {\n /* eslint-disable no-param-reassign /\n obj[member.name] = {\n element: member.element,\n writer: createWriter(member.element),\n totalByteOffset: byteOffset + member.byteOffset,\n proxyHandler: viewVisitor[member.element.tag],\n };\n / eslint-enable /\n return obj;\n }, Object.create(null));\n\n return createObjectProxy(names, {\n get(name) {\n const { element, proxyHandler, totalByteOffset } = membersByName[name];\n return proxyHandler(element, dataView, totalByteOffset, useProxy);\n },\n set(name, value) {\n const { writer, totalByteOffset } = membersByName[name];\n writer(dataView, totalByteOffset, value);\n },\n });\n },\n\n Bitfield({ element, members }, dataView, byteOffset) {\n const reader = createReader(element);\n const writer = createWriter(element);\n\n const names = members.map(member => member.name);\n\n let currentBitOffset = 0;\n const infoByName = members.reduce((info, { name, bits }) => {\n const bitOffset = currentBitOffset;\n const mask = createMask(bits);\n const clearMask = ~(mask << bitOffset);\n / eslint-disable no-param-reassign /\n info[name] = { bitOffset, mask, clearMask };\n / eslint-enable /\n currentBitOffset += bits;\n return info;\n }, Object.create(null));\n\n return createObjectProxy(names, {\n get(name) {\n const { bitOffset, mask } = infoByName[name];\n const elementValue = reader(dataView, byteOffset);\n return (elementValue >>> bitOffset) & mask;\n },\n set(name, value) {\n const { bitOffset, clearMask, mask } = infoByName[name];\n let elementValue = reader(dataView, byteOffset);\n elementValue &= clearMask;\n elementValue \|= (value & mask) << bitOffset;\n writer(dataView, byteOffset, elementValue);\n },\n });\n },\n\n Buffer({ byteLength }, dataView, byteOffset) {\n return new Uint8Array(dataView.buffer, byteOffset, byteLength);\n },\n});\n\nexport function createView(type, buffer = new ArrayBuffer(sizeof(type)), useProxy) {\n const dataView = getDataView(buffer);\n\n const viewHandler = viewVisitor[type.tag];\n const writer = createWriter(type);\n\n const view = {\n buffer: dataView.buffer,\n byteOffset: dataView.byteOffset,\n byteLength: dataView.byteLength,\n };\n\n let cache;\n Object.defineProperty(view, 'value', {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = viewHandler(type, dataView, 0, useProxy);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set(value) {\n writer(dataView, 0, value);\n },\n });\n\n return Object.seal(view);\n}\n","/ eslint-disable no-shadow /\nimport { getDataView, sizeof, maybeMemoize } from './utils';\nimport { createReader } from './visitors/reader';\nimport { createWriter } from './visitors/writer';\n\nexport { createView } from './visitors/view';\n\n// Since type schemas are immutable, we should always create the same code for the same object\nconst createReaderMemoized = maybeMemoize(createReader);\nconst createWriterMemoized = maybeMemoize(createWriter);\n\n/\n Create a decode function for converting a buffer into its JavaScript representation\n /\nexport function createDecoder(type) {\n if (type === undefined) {\n throw new TypeError('You must specify a type to convert with');\n }\n const reader = createReaderMemoized(type);\n return function decode(buffer, data) {\n if (buffer === undefined) {\n throw new TypeError('You must specify the buffer the decode');\n }\n const dataView = getDataView(buffer);\n return reader(dataView, 0, data);\n };\n}\n\n/\n Create an encode function for serializing a JavaScript object or value into a buffer\n /\nexport function createEncoder(type) {\n if (type === undefined) {\n throw new TypeError('You must specify a type to convert with');\n }\n const writer = createWriterMemoized(type);\n return function encode(data, buffer = new ArrayBuffer(sizeof(type))) {\n if (data === undefined) {\n throw new TypeError('You must specify the data to encode');\n }\n const dataView = getDataView(buffer);\n if (sizeof(dataView) < sizeof(type)) {\n throw new RangeError('The provided buffer is too small to store the encoded type');\n }\n writer(dataView, 0, data);\n return buffer;\n };\n}\n\n/\n Create a converter object that contains both an encoder and a decoder\n /\nexport function createConverter(type) {\n / istanbul ignore next /\n const encode = createEncoder(type);\n / istanbul ignore next /\n const decode = createDecoder(type);\n / istanbul ignore next /\n return { type, encode, decode };\n}\n\n/\n Converting a buffer into its JavaScript representation\n * @deprecated\n /\nexport function decode(type, buffer, data) {\n const decode = createDecoder(type);\n return decode(buffer, data);\n}\n\n/\n Serialize a JavaScript object or value into a buffer\n * @deprecated\n */\nexport function encode(type, data, buffer) {\n const encode = createEncoder(type);\n return encode(data, 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+816

-809

dist/structly.mjs

		var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
		return typeof obj;
		} : function (obj) {
		return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj;
		};
		return typeof obj;
		} : function (obj) {
		return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj;
		};

		/**
		* Whether the running system is little endian (true = LE, false = BE)
		*/
		var systemLittleEndian = (typeof os === 'undefined' ? 'undefined' : _typeof(os)) === 'object' ?
		/* eslint-disable no-undef */
		os.endianness() === 'LE'
		/* eslint-enable no-undef */
		: new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;
		* Whether the running system is little endian (true = LE, false = BE)
		*/
		var systemLittleEndian = (typeof os === 'undefined' ? 'undefined' : _typeof(os)) === 'object' ?
		/* eslint-disable no-undef */
		os.endianness() === 'LE'
		/* eslint-enable no-undef */
		: new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;

		/**
		* Gets the closest multiple of byteAlignment from byteOffset (base-2 only)
		*/
		function align(byteOffset, byteAlignment) {
		/* eslint-disable no-mixed-operators */
		return byteOffset + byteAlignment - 1 & ~(byteAlignment - 1);
		}
		/**
		* Gets the closest multiple of byteAlignment from byteOffset (base-2 only)
		*/
		function align(byteOffset, byteAlignment) {
		/* eslint-disable no-mixed-operators */
		return byteOffset + byteAlignment - 1 & ~(byteAlignment - 1);
		}

		/**
		* The byte alignment of the given type
		*/
		function alignof() {
		var _ref = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];
		/**
		* The byte alignment of the given type
		*/
		function alignof() {
		var _ref = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];

		var _ref$byteAlignment = _ref.byteAlignment;
		var byteAlignment = _ref$byteAlignment === undefined ? 0 : _ref$byteAlignment;
		var _ref$byteAlignment = _ref.byteAlignment;
		var byteAlignment = _ref$byteAlignment === undefined ? 0 : _ref$byteAlignment;

		return byteAlignment;
		}
		return byteAlignment;
		}

		/**
		* The byte size of the type, excluding alignment padding
		*/
		function sizeof() {
		var _ref2 = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];
		/**
		* The byte size of the type, excluding alignment padding
		*/
		function sizeof() {
		var _ref2 = arguments.length <= 0 \|\| arguments[0] === undefined ? {} : arguments[0];

		var _ref2$byteLength = _ref2.byteLength;
		var byteLength = _ref2$byteLength === undefined ? 0 : _ref2$byteLength;
		var _ref2$byteLength = _ref2.byteLength;
		var byteLength = _ref2$byteLength === undefined ? 0 : _ref2$byteLength;

		return byteLength;
		}
		return byteLength;
		}

		/**
		* The byte size of the type, including alignment padding
		*/
		function strideof(type) {
		var byteAlignment = arguments.length <= 1 \|\| arguments[1] === undefined ? alignof(type) : arguments[1];
		/**
		* The byte size of the type, including alignment padding
		*/
		function strideof(type) {
		var byteAlignment = arguments.length <= 1 \|\| arguments[1] === undefined ? alignof(type) : arguments[1];

		return align(sizeof(type), byteAlignment);
		}
		return align(sizeof(type), byteAlignment);
		}

		function createMask(bits) {
		return bits <= 0 ? 0 : 0xFFFFFFFF >>> 32 - bits;
		}
		function createMask(bits) {
		return bits <= 0 ? 0 : 0xFFFFFFFF >>> 32 - bits;
		}

		function createVariable(name) {
		var stackDepth = arguments.length <= 1 \|\| arguments[1] === undefined ? 0 : arguments[1];
		function createVariable(name) {
		var stackDepth = arguments.length <= 1 \|\| arguments[1] === undefined ? 0 : arguments[1];

		return '' + name + stackDepth;
		return '' + name + stackDepth;
		}

		/* eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax */
		var assign = Object.assign \|\| /* istanbul ignore next */function assign(target) {
		if (target == null) {
		throw new TypeError('Cannot convert undefined or null to object');
		}

		/* eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax */
		var assign = Object.assign \|\| /* istanbul ignore next */function assign(target) {
		if (target == null) {
		throw new TypeError('Cannot convert undefined or null to object');
		}
		target = Object(target);
		for (var index = 1, len = arguments.length; index < len; index++) {
		var source = Object(arguments[index]);
		if (source != null) {
		for (var key in source) {
		if (Object.prototype.hasOwnProperty.call(source, key)) {
		target[key] = source[key];
		}
		target = Object(target);
		for (var index = 1, len = arguments.length; index < len; index++) {
		var source = Object(arguments[index]);
		if (source != null) {
		for (var key in source) {
		if (Object.prototype.hasOwnProperty.call(source, key)) {
		target[key] = source[key];
		}
		}
		}
		return target;
		};
		}
		return target;
		};

		function getDataView(data) {
		if (data instanceof ArrayBuffer) {
		return new DataView(data);
		} else if (ArrayBuffer.isView(data)) {
		var buffer = data.buffer;
		var byteOffset = data.byteOffset;
		var byteLength = data.byteLength;
		function getDataView(data) {
		if (data instanceof DataView) {
		return data;
		} else if (data instanceof ArrayBuffer) {
		return new DataView(data);
		} else if (ArrayBuffer.isView(data)) {
		var buffer = data.buffer;
		var byteOffset = data.byteOffset;
		var byteLength = data.byteLength;

		return new DataView(buffer, byteOffset, byteLength);
		}
		throw new TypeError('Invalid input data');
		return new DataView(buffer, byteOffset, byteLength);
		}

		// Memoize if WeakMap if supported, otherwise passthrough
		var maybeMemoize = function () {
		if (typeof WeakMap === 'function') {
		return function memoize(fn) {
		var cache = new WeakMap();
		return function memoized(key) {
		if (!cache.has(key)) {
		cache.set(key, fn(key));
		}
		return cache.get(key);
		};
		throw new TypeError('Invalid input data');
		}
		// Memoize if WeakMap if supported, otherwise passthrough
		var maybeMemoize = function () {
		if (typeof WeakMap === 'function') {
		return function memoize(fn) {
		var cache = new WeakMap();
		return function memoized(key) {
		if (!cache.has(key)) {
		cache.set(key, fn(key));
		}
		return cache.get(key);
		};
		}
		/* istanbul ignore next */
		return function passthrough(fn) {
		return fn;
		};
		}();
		}
		/* istanbul ignore next */
		return function passthrough(fn) {
		return fn;
		};
		}();

		/* eslint-disable no-param-reassign */
		function createNumberType(kind, size) {
		var littleEndian = arguments.length <= 2 \|\| arguments[2] === undefined ? systemLittleEndian : arguments[2];
		var littleEndian = arguments.length <= 2 \|\| arguments[2] === undefined ? systemLittleEndian : arguments[2];

		return Object.freeze({
		tag: 'Number',
		kind: kind,
		byteLength: size,
		byteAlignment: size,
		littleEndian: littleEndian
		});
		}
		return Object.freeze({
		tag: 'Number',
		kind: kind,
		byteLength: size,
		byteAlignment: size,
		littleEndian: littleEndian
		});
		}

		var boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });
		var bool = boolean;
		var boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });
		var bool = boolean;

		var int8 = createNumberType('Int8', 1);
		var uint8 = createNumberType('Uint8', 1);
		var int8 = createNumberType('Int8', 1);
		var uint8 = createNumberType('Uint8', 1);

		var int16 = createNumberType('Int16', 2);
		var int16le = createNumberType('Int16', 2, true);
		var int16be = createNumberType('Int16', 2, false);
		var int16 = createNumberType('Int16', 2);
		var int16le = createNumberType('Int16', 2, true);
		var int16be = createNumberType('Int16', 2, false);

		var uint16 = createNumberType('Uint16', 2);
		var uint16le = createNumberType('Uint16', 2, true);
		var uint16be = createNumberType('Uint16', 2, false);
		var uint16 = createNumberType('Uint16', 2);
		var uint16le = createNumberType('Uint16', 2, true);
		var uint16be = createNumberType('Uint16', 2, false);

		var int32 = createNumberType('Int32', 4);
		var int32le = createNumberType('Int32', 4, true);
		var int32be = createNumberType('Int32', 4, false);
		var int32 = createNumberType('Int32', 4);
		var int32le = createNumberType('Int32', 4, true);
		var int32be = createNumberType('Int32', 4, false);

		var uint32 = createNumberType('Uint32', 4);
		var uint32le = createNumberType('Uint32', 4, true);
		var uint32be = createNumberType('Uint32', 4, false);
		var uint32 = createNumberType('Uint32', 4);
		var uint32le = createNumberType('Uint32', 4, true);
		var uint32be = createNumberType('Uint32', 4, false);

		var float32 = createNumberType('Float32', 4);
		var float32le = createNumberType('Float32', 4, true);
		var float32be = createNumberType('Float32', 4, false);
		var float32 = createNumberType('Float32', 4);
		var float32le = createNumberType('Float32', 4, true);
		var float32be = createNumberType('Float32', 4, false);

		var float64 = createNumberType('Float64', 8);
		var float64le = createNumberType('Float64', 8, true);
		var float64be = createNumberType('Float64', 8, false);
		var float64 = createNumberType('Float64', 8);
		var float64le = createNumberType('Float64', 8, true);
		var float64be = createNumberType('Float64', 8, false);

		/**
		* Create a string type.
		*/
		function string(maxLength) {
		var encoding = arguments.length <= 1 \|\| arguments[1] === undefined ? 'utf8' : arguments[1];
		/**
		* Create a string type.
		*/
		function string(maxLength) {
		var encoding = arguments.length <= 1 \|\| arguments[1] === undefined ? 'utf8' : arguments[1];

		if (maxLength === undefined) {
		throw new TypeError('You must specify a max length for the string!');
		}

		return Object.freeze({
		tag: 'String',
		byteLength: maxLength,
		byteAlignment: 1,
		encoding: encoding
		});
		if (maxLength === undefined) {
		throw new TypeError('You must specify a max length for the string!');
		}

		/**
		* Create an array type.
		*/
		function array(element, length) {
		var _ref = arguments.length <= 2 \|\| arguments[2] === undefined ? {} : arguments[2];
		return Object.freeze({
		tag: 'String',
		byteLength: maxLength,
		byteAlignment: 1,
		encoding: encoding
		});
		}

		var pack = _ref.pack;
		/**
		* Create an array type.
		*/
		function array(element, length) {
		var _ref = arguments.length <= 2 \|\| arguments[2] === undefined ? {} : arguments[2];

		if (element === undefined) {
		throw new TypeError('You must specify the array element type!');
		}
		if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the array!');
		}
		var pack = _ref.pack;

		return Object.freeze({
		tag: 'Array',
		byteLength: length * element.byteLength,
		byteAlignment: pack \|\| element.byteAlignment,
		length: length,
		element: element
		});
		if (element === undefined) {
		throw new TypeError('You must specify the array element type!');
		}
		if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the array!');
		}

		function offsetHelper(tag, elements, inject) {
		var pack = arguments.length <= 3 \|\| arguments[3] === undefined ? 0 : arguments[3];
		return Object.freeze({
		tag: 'Array',
		byteLength: length * element.byteLength,
		byteAlignment: pack \|\| element.byteAlignment,
		length: length,
		element: element
		});
		}

		var byteOffset = 0;
		var maxByteAlignment = 0;
		function offsetHelper(tag, elements, inject) {
		var pack = arguments.length <= 3 \|\| arguments[3] === undefined ? 0 : arguments[3];

		var members = Object.freeze(elements.map(function (element) {
		var byteLength = element.byteLength;
		var byteAlignment = element.byteAlignment;
		var byteOffset = 0;
		var maxByteAlignment = 0;

		var members = Object.freeze(elements.map(function (element) {
		var byteLength = element.byteLength;
		var byteAlignment = element.byteAlignment;

		byteOffset = align(byteOffset, pack \|\| byteAlignment);

		var result = { byteOffset: byteOffset, element: element };
		byteOffset = align(byteOffset, pack \|\| byteAlignment);

		if (inject !== undefined) {
		assign(result, inject(element));
		}
		var result = { byteOffset: byteOffset, element: element };

		byteOffset += byteLength;
		maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);
		if (inject !== undefined) {
		assign(result, inject(element));
		}

		return Object.freeze(result);
		}));
		byteOffset += byteLength;
		maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);

		return Object.freeze({
		tag: tag,
		byteLength: byteOffset,
		byteAlignment: pack \|\| maxByteAlignment,
		members: members
		});
		}
		return Object.freeze(result);
		}));

		/**
		* Create a tuple type.
		*/
		function tuple() {
		for (var _len = arguments.length, elements = Array(_len), _key = 0; _key < _len; _key++) {
		elements[_key] = arguments[_key];
		}
		return Object.freeze({
		tag: tag,
		byteLength: byteOffset,
		byteAlignment: pack \|\| maxByteAlignment,
		members: members
		});
		}

		return offsetHelper('Tuple', elements);
		/**
		* Create a tuple type.
		*/
		function tuple() {
		for (var _len = arguments.length, elements = Array(_len), _key = 0; _key < _len; _key++) {
		elements[_key] = arguments[_key];
		}

		function injectName(_ref2) {
		var name = _ref2.name;
		return offsetHelper('Tuple', elements);
		}

		return { name: name };
		}
		function injectName(_ref2) {
		var name = _ref2.name;

		/**
		* Create a struct type.
		*/
		function struct(members) {
		var _ref3 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];
		return { name: name };
		}

		var _ref3$reorder = _ref3.reorder;
		var reorder = _ref3$reorder === undefined ? false : _ref3$reorder;
		var _ref3$pack = _ref3.pack;
		var pack = _ref3$pack === undefined ? 0 : _ref3$pack;
		/**
		* Create a struct type.
		*/
		function struct(members) {
		var _ref3 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];

		if (members === undefined) {
		throw new TypeError('You must specify the struct members!');
		}
		var _ref3$reorder = _ref3.reorder;
		var reorder = _ref3$reorder === undefined ? false : _ref3$reorder;
		var _ref3$pack = _ref3.pack;
		var pack = _ref3$pack === undefined ? 0 : _ref3$pack;

		pack = Number(pack);
		var memberNames = Object.keys(members);
		if (members === undefined) {
		throw new TypeError('You must specify the struct members!');
		}

		if (reorder) {
		memberNames.sort(function (a, b) {
		return alignof(members[a]) - alignof(members[b]);
		});
		}
		pack = Number(pack);
		var memberNames = Object.keys(members);

		var sortedMembers = memberNames.map(function (name) {
		return assign({ name: name }, members[name]);
		if (reorder) {
		memberNames.sort(function (a, b) {
		return alignof(members[a]) - alignof(members[b]);
		});

		return offsetHelper('Struct', sortedMembers, injectName, pack);
		}

		/**
		* Create a bitfield type.
		*/
		function bitfield(members) {
		var element = arguments.length <= 1 \|\| arguments[1] === undefined ? uint32 : arguments[1];
		var sortedMembers = memberNames.map(function (name) {
		return assign({ name: name }, members[name]);
		});

		if (members === undefined) {
		throw new TypeError('You must specify the bitfield members!');
		}
		return offsetHelper('Struct', sortedMembers, injectName, pack);
		}

		var memberNames = Object.keys(members);
		var totalBits = memberNames.reduce(function (sum, name) {
		return sum + members[name];
		}, 0);
		/**
		* Create a bitfield type.
		*/
		function bitfield(members) {
		var element = arguments.length <= 1 \|\| arguments[1] === undefined ? uint32 : arguments[1];

		if (totalBits > 8 * element.byteLength) {
		throw new RangeError('Sum of bitfield widths is too large for storage element');
		}
		if (members === undefined) {
		throw new TypeError('You must specify the bitfield members!');
		}

		return Object.freeze({
		tag: 'Bitfield',
		byteLength: element.byteLength,
		byteAlignment: element.byteAlignment,
		members: Object.freeze(memberNames.map(function (name) {
		return Object.freeze({ name: name, bits: members[name] });
		})),
		element: element
		});
		var memberNames = Object.keys(members);
		var totalBits = memberNames.reduce(function (sum, name) {
		return sum + members[name];
		}, 0);

		if (totalBits > 8 * element.byteLength) {
		throw new RangeError('Sum of bitfield widths is too large for storage element');
		}

		function buffer(length) { if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the buffer!');
		}
		return Object.freeze({
		tag: 'Bitfield',
		byteLength: element.byteLength,
		byteAlignment: element.byteAlignment,
		members: Object.freeze(memberNames.map(function (name) {
		return Object.freeze({ name: name, bits: members[name] });
		})),
		element: element
		});
		}

		return Object.freeze({
		tag: 'Buffer',
		byteLength: length,
		byteAlignment: 1
		});
		function buffer(length) {
		if (length === undefined \|\| typeof length !== 'number') {
		throw new TypeError('You must specify a length of the buffer!');
		}

		return Object.freeze({
		tag: 'Buffer',
		byteLength: length,
		byteAlignment: 1
		});
		}

		/* eslint-disable max-len, no-new-func */
		var readerVisitor = Object.freeze({
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		return resultVar + ' = dataView.get' + kind + '(' + byteOffsetVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		return resultVar + ' = dataView.get' + kind + '(' + byteOffsetVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var resultVar = createVariable('result', stackDepth);

		return resultVar + ' = Boolean(dataView.getUint8(' + byteOffsetVar + '));';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;
		return '\n ' + readerVisitor.Number(uint8, stackDepth) + '\n ' + resultVar + ' = Boolean(' + resultVar + ');\n ';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;

		var resultVar = createVariable('result', stackDepth);
		var arrayVar = createVariable('array', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var resultVar = createVariable('result', stackDepth);
		var arrayVar = createVariable('array', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		return '\n var ' + arrayVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n var ' + indexVar + ' = ' + arrayVar + '.indexOf(0);\n if (' + indexVar + ' >= 0) {\n ' + arrayVar + ' = ' + arrayVar + '.subarray(0, ' + indexVar + ');\n }\n ' + function () {
		if (typeof Buffer === 'function') {
		return resultVar + ' = new Buffer(' + arrayVar + ').toString(' + JSON.stringify(encoding) + ');';
		}
		return '\n var ' + arrayVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n var ' + indexVar + ' = Array.prototype.indexOf.call(' + arrayVar + ', 0);\n ' + function () {
		if (typeof Buffer === 'function') {
		return '\n ' + resultVar + ' = new Buffer(' + arrayVar + '.buffer)\n .slice(' + byteOffsetVar + ', ' + byteOffsetVar + ' + (' + indexVar + ' >= 0 ? ' + indexVar + ' : ' + byteLength + '))\n .toString(' + JSON.stringify(encoding) + ');\n ';
		}

		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return resultVar + ' = new TextDecoder(' + JSON.stringify(encoding) + ').decode(' + arrayVar + ');';
		}
		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return '\n if (' + indexVar + ' >= 0) {\n ' + arrayVar + ' = new Uint8Array(' + arrayVar + '.buffer, ' + byteOffsetVar + ', ' + indexVar + ');\n }\n ' + resultVar + ' = new TextDecoder(' + JSON.stringify(encoding) + ').decode(' + arrayVar + ');\n ';
		}

		/* istanbul ignore next */
		return resultVar + ' = String.fromCharCode.apply(String, ' + arrayVar + ');';
		}() + '\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;
		/* istanbul ignore next */
		return '\n if (' + indexVar + ' >= 0) {\n ' + arrayVar + ' = new Uint8Array(' + arrayVar + '.buffer, ' + byteOffsetVar + ', ' + indexVar + ');\n }\n ' + resultVar + ' = String.fromCharCode.apply(String, ' + arrayVar + ');\n ';
		}() + '\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + length + ');\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerResultVar + ' = ' + resultVar + '[' + indexVar + '];\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + indexVar + '] = ' + innerResultVar + ';\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + length + ');\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerResultVar + ' = ' + resultVar + '[' + indexVar + '];\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + indexVar + '] = ' + innerResultVar + ';\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + members.length + ');\n }\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + i + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = new Array(' + members.length + ');\n }\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + i + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyStruct = '{ ' + members.map(function (_ref7) {
		var name = _ref7.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyStruct = '{ ' + members.map(function (_ref7) {
		var name = _ref7.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyStruct + ';\n }\n ' + members.map(function (_ref8) {
		var name = _ref8.name;
		var element = _ref8.element;
		var byteOffset = _ref8.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref9, stackDepth) {
		var element = _ref9.element;
		var members = _ref9.members;
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyStruct + ';\n }\n ' + members.map(function (_ref8) {
		var name = _ref8.name;
		var element = _ref8.element;
		var byteOffset = _ref8.byteOffset;
		return '\n var ' + innerResultVar + ' = ' + resultVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ';\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref9, stackDepth) {
		var element = _ref9.element;
		var members = _ref9.members;

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyBitfield = '{ ' + members.map(function (_ref10) {
		var name = _ref10.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerResultVar = createVariable('result', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var emptyBitfield = '{ ' + members.map(function (_ref10) {
		var name = _ref10.name;
		return JSON.stringify(name) + ': undefined';
		}).join(', ') + ' }';

		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyBitfield + ';\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerResultVar + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + members.map(function (_ref11) {
		var name = _ref11.name;
		var bits = _ref11.bits;
		return '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ' & ' + createMask(bits) + ';\n ' + innerResultVar + ' >>>= ' + bits + ';\n ';
		}).join('\n') + '\n ';
		},
		Buffer: function Buffer(_ref12, stackDepth) {
		var byteLength = _ref12.byteLength;
		return '\n if (' + resultVar + ' === void 0) {\n ' + resultVar + ' = ' + emptyBitfield + ';\n }\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerResultVar + ';\n ' + readerVisitor[element.tag](element, innerStackDepth) + '\n ' + members.map(function (_ref11) {
		var name = _ref11.name;
		var bits = _ref11.bits;
		return '\n ' + resultVar + '[' + JSON.stringify(name) + '] = ' + innerResultVar + ' & ' + createMask(bits) + ';\n ' + innerResultVar + ' >>>= ' + bits + ';\n ';
		}).join('\n') + '\n ';
		},
		Buffer: function Buffer(_ref12, stackDepth) {
		var byteLength = _ref12.byteLength;

		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var resultVar = createVariable('result', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		return '\n if (' + resultVar + ' === void 0 \|\|\n ' + resultVar + '.buffer !== dataView.buffer \|\|\n ' + resultVar + '.byteLength !== ' + byteOffsetVar + ' \|\|\n ' + resultVar + '.byteOffset !== ' + byteLength + ') {\n ' + resultVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n }\n ';
		}
		});
		return '\n if (' + resultVar + ' === void 0 \|\|\n ' + resultVar + '.buffer !== dataView.buffer \|\|\n ' + resultVar + '.byteOffset !== ' + byteOffsetVar + ' \|\|\n ' + resultVar + '.byteLength !== ' + byteLength + ') {\n ' + resultVar + ' = new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ');\n }\n ';
		}
		});

		function createReader(type) { var resultVar = createVariable('result');
		var byteOffsetVar = createVariable('byteOffset');
		function createReader(type) {
		var resultVar = createVariable('result');
		var byteOffsetVar = createVariable('byteOffset');

		return new Function('dataView', byteOffsetVar, resultVar, '\n "use strict";\n ' + readerVisitor[type.tag](type, 0) + '\n return ' + resultVar + ';\n ');
		}
		return new Function('dataView', byteOffsetVar, resultVar, '\n "use strict";\n ' + readerVisitor[type.tag](type, 0) + '\n return ' + resultVar + ';\n ');
		}

		/* eslint-disable max-len, no-new-func */
		var writerVisitor = Object.freeze({
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;
		Number: function Number(_ref, stackDepth) {
		var littleEndian = _ref.littleEndian;
		var kind = _ref.kind;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		return 'dataView.set' + kind + '(' + byteOffsetVar + ', ' + dataVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		return 'dataView.set' + kind + '(' + byteOffsetVar + ', ' + dataVar + ', ' + littleEndian + ');';
		},
		Boolean: function Boolean(_, stackDepth) {
		var dataVar = createVariable('data', stackDepth);

		return 'dataView.setUint8(' + byteOffsetVar + ', Number(' + dataVar + '));';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;
		return '\n ' + dataVar + ' = Number(' + dataVar + ');\n ' + writerVisitor.Number(uint8, stackDepth) + '\n ';
		},
		String: function String(_ref2, stackDepth) {
		var byteLength = _ref2.byteLength;
		var encoding = _ref2.encoding;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var lengthVar = createVariable('length', stackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var lengthVar = createVariable('length', stackDepth);

		if (typeof Buffer === 'function') {
		return '\n new Buffer(' + dataVar + ', ' + JSON.stringify(encoding) + ').copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ' + byteOffsetVar + ');\n ';
		}
		if (typeof Buffer === 'function') {
		return '\n new Buffer(' + dataVar + ', ' + JSON.stringify(encoding) + ').copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ' + byteOffsetVar + ');\n ';
		}

		/* istanbul ignore next */
		if (typeof TextEncoder === 'function') {
		return '\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(' + JSON.stringify(encoding) + ').encode(' + dataVar + '));\n ';
		}
		/* istanbul ignore next */
		if (typeof TextEncoder === 'function') {
		return '\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(' + JSON.stringify(encoding) + ').encode(' + dataVar + '));\n ';
		}

		/* istanbul ignore next */
		return '\n ' + dataVar + ' = new String(' + dataVar + ');\n for (var ' + indexVar + ' = 0, ' + lengthVar + ' = ' + dataVar + '.length; ' + indexVar + ' < ' + lengthVar + '; ++' + indexVar + ') {\n dataView.setUint8(' + byteOffsetVar + ' + ' + indexVar + ', ' + dataVar + '.charCodeAt(' + indexVar + '));\n }\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;
		/* istanbul ignore next */
		return '\n ' + dataVar + ' = new String(' + dataVar + ');\n for (var ' + indexVar + ' = 0, ' + lengthVar + ' = ' + dataVar + '.length; ' + indexVar + ' < ' + lengthVar + '; ++' + indexVar + ') {\n dataView.setUint8(' + byteOffsetVar + ' + ' + indexVar + ', ' + dataVar + '.charCodeAt(' + indexVar + '));\n }\n ';
		},
		Array: function Array(_ref3, stackDepth) {
		var byteAlignment = _ref3.byteAlignment;
		var length = _ref3.length;
		var element = _ref3.element;
		var pack = _ref3.pack;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var indexVar = createVariable('i', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var stride = strideof(element, byteAlignment);

		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerDataVar + ' = ' + dataVar + '[' + indexVar + '];\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;
		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n for (var ' + indexVar + ' = 0; ' + indexVar + ' < ' + length + '; ++' + indexVar + ') {\n var ' + innerDataVar + ' = ' + dataVar + '[' + indexVar + '];\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ' + innerByteOffsetVar + ' += ' + stride + ';\n }\n ';
		},
		Tuple: function Tuple(_ref4, stackDepth) {
		var members = _ref4.members;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		return '\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;
		return '\n ' + members.map(function (_ref5, i) {
		var element = _ref5.element;
		var byteOffset = _ref5.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + i + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Struct: function Struct(_ref6, stackDepth) {
		var members = _ref6.members;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		return '\n ' + members.map(function (_ref7) {
		var name = _ref7.name;
		var element = _ref7.element;
		var byteOffset = _ref7.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref8, stackDepth) {
		var element = _ref8.element;
		var members = _ref8.members;
		return '\n ' + members.map(function (_ref7) {
		var name = _ref7.name;
		var element = _ref7.element;
		var byteOffset = _ref7.byteOffset;
		return '\n var ' + innerDataVar + ' = ' + dataVar + '[' + JSON.stringify(name) + '];\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ' + ' + byteOffset + ';\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		}).join('\n') + '\n ';
		},
		Bitfield: function Bitfield(_ref8, stackDepth) {
		var element = _ref8.element;
		var members = _ref8.members;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var innerStackDepth = stackDepth + 1;
		var innerDataVar = createVariable('data', innerStackDepth);
		var innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);

		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerDataVar + ' = 0;\n ' + members.slice().reverse().map(function (_ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;
		return '\n ' + innerDataVar + ' <<= ' + bits + ';\n ' + innerDataVar + ' \|= ' + dataVar + '[' + JSON.stringify(name) + '] & ' + createMask(bits) + ';\n ';
		}).join('\n') + '\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		},
		Buffer: function Buffer(_ref10, stackDepth) {
		var byteLength = _ref10.byteLength;
		return '\n var ' + innerByteOffsetVar + ' = ' + byteOffsetVar + ';\n var ' + innerDataVar + ' = 0;\n ' + members.slice().reverse().map(function (_ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;
		return '\n ' + innerDataVar + ' <<= ' + bits + ';\n ' + innerDataVar + ' \|= ' + dataVar + '[' + JSON.stringify(name) + '] & ' + createMask(bits) + ';\n ';
		}).join('\n') + '\n ' + writerVisitor[element.tag](element, innerStackDepth) + '\n ';
		},
		Buffer: function Buffer(_ref10, stackDepth) {
		var byteLength = _ref10.byteLength;

		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);
		var dataVar = createVariable('data', stackDepth);
		var byteOffsetVar = createVariable('byteOffset', stackDepth);

		return '\n if (' + dataVar + '.buffer !== dataView.buffer \|\|\n ' + dataVar + '.byteLength !== ' + byteOffsetVar + ' \|\|\n ' + dataVar + '.byteOffset !== ' + byteLength + ') {\n new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ').set(' + dataVar + ');\n }\n ';
		}
		});
		return '\n if (' + dataVar + '.buffer !== dataView.buffer \|\|\n ' + dataVar + '.byteOffset !== ' + byteOffsetVar + ' \|\|\n ' + dataVar + '.byteLength !== ' + byteLength + ') {\n new Uint8Array(dataView.buffer, ' + byteOffsetVar + ', ' + byteLength + ').set(' + dataVar + ');\n }\n ';
		}
		});

		function createWriter(type) { var dataVar = createVariable('data');
		var byteOffsetVar = createVariable('byteOffset');
		function createWriter(type) {
		var dataVar = createVariable('data');
		var byteOffsetVar = createVariable('byteOffset');

		return new Function('dataView', byteOffsetVar, dataVar, '\n "use strict";\n ' + writerVisitor[type.tag](type, 0) + '\n ');
		}
		return new Function('dataView', byteOffsetVar, dataVar, '\n "use strict";\n ' + writerVisitor[type.tag](type, 0) + '\n ');
		}

		var SUPPORTS_PROXY = typeof Proxy === 'function';

		function createArrayProxy(length) {
		var _ref = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];
		function createArrayProxy(length) {
		var _ref = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];

		var _get = _ref.get;
		var _set = _ref.set;
		var _ref$useProxy = _ref.useProxy;
		var useProxy = _ref$useProxy === undefined ? SUPPORTS_PROXY : _ref$useProxy;
		var _get = _ref.get;
		var _set = _ref.set;
		var _ref$useProxy = _ref.useProxy;
		var useProxy = _ref$useProxy === undefined ? SUPPORTS_PROXY : _ref$useProxy;

		var array = new Array(length);
		var array = new Array(length);

		// Lazily compute properties if proxy is available
		if (useProxy) {
		return new Proxy(array, {
		has: function has(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		return index >= 0 && index < length;
		}
		return key in target;
		},
		get: function get(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		if (index >= 0 && index < length) {
		var cache = void 0;
		if (key in target) {
		cache = target[key];
		} else {
		cache = _get(index);
		if ((typeof cache === 'undefined' ? 'undefined' : _typeof(cache)) === 'object') {
		/* eslint-disable no-param-reassign */
		target[key] = cache;
		/* eslint-enable */
		}
		// Lazily compute properties if proxy is available
		if (useProxy) {
		return new Proxy(array, {
		has: function has(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		return index >= 0 && index < length;
		}
		return key in target;
		},
		get: function get(target, key) {
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		if (index >= 0 && index < length) {
		var cache = void 0;
		if (key in target) {
		cache = target[key];
		} else {
		cache = _get(index);
		if ((typeof cache === 'undefined' ? 'undefined' : _typeof(cache)) === 'object') {
		/* eslint-disable no-param-reassign */
		target[key] = cache;
		/* eslint-enable */
		}
		return cache;
		}
		return cache;
		}
		return target[key];
		},
		set: function set(target, key, value) {
		// Check that key is either a number or a numeric string
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		// Check bounds
		if (index >= 0 && index < length) {
		return _set(index, value) \|\| true;
		}
		}
		return target[key];
		},
		set: function set(target, key, value) {
		// Check that key is either a number or a numeric string
		if ((typeof key === 'undefined' ? 'undefined' : _typeof(key)) !== 'symbol' && !isNaN(key)) {
		var index = parseInt(key, 10);
		// Check bounds
		if (index >= 0 && index < length) {
		return _set(index, value) \|\| true;
		}
		// Don't allow any other properties to be changed
		return false;
		}
		});
		}
		// Don't allow any other properties to be changed
		return false;
		}
		});
		}

		// Eagerly compute properties using Object.defineProperty
		// Eagerly compute properties using Object.defineProperty

		var _loop = function _loop(i) {
		var cache = void 0;
		Object.defineProperty(array, i, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get(i);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		var _loop = function _loop(i) {
		var cache = void 0;
		Object.defineProperty(array, i, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get(i);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},

		set: _set.bind(undefined, i)
		});
		};
		set: _set.bind(undefined, i)
		});
		};

		for (var i = 0; i < length; ++i) {
		_loop(i);
		}

		return Object.freeze(array);
		for (var i = 0; i < length; ++i) {
		_loop(i);
		}

		function createObjectProxy(keys) {
		var _ref2 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];
		return Object.freeze(array);
		}

		var _get2 = _ref2.get;
		var set = _ref2.set;
		function createObjectProxy(keys) {
		var _ref2 = arguments.length <= 1 \|\| arguments[1] === undefined ? {} : arguments[1];

		var object = {};
		var _get2 = _ref2.get;
		var set = _ref2.set;

		var _loop2 = function _loop2(i) {
		var key = keys[i];
		var cache = void 0;
		Object.defineProperty(object, key, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get2(key);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		var object = {};

		set: set.bind(undefined, key)
		});
		};
		var _loop2 = function _loop2(i) {
		var key = keys[i];
		var cache = void 0;
		Object.defineProperty(object, key, {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = _get2(key);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},

		for (var i = 0; i < keys.length; ++i) {
		_loop2(i);
		}
		set: set.bind(undefined, key)
		});
		};

		return Object.freeze(object);
		for (var i = 0; i < keys.length; ++i) {
		_loop2(i);
		}

		var viewVisitor = Object.freeze({
		Number: function Number(_ref3, dataView, byteOffset) {
		var littleEndian = _ref3.littleEndian;
		var kind = _ref3.kind;
		return Object.freeze(object);
		}

		return dataView['get' + kind](byteOffset, littleEndian);
		},
		Boolean: function (_Boolean) {
		function Boolean(_x3, _x4, _x5) {
		return _Boolean.apply(this, arguments);
		}
		var viewVisitor = Object.freeze({
		Number: function Number(_ref3, dataView, byteOffset) {
		var littleEndian = _ref3.littleEndian;
		var kind = _ref3.kind;

		Boolean.toString = function () {
		return _Boolean.toString();
		};
		return dataView['get' + kind](byteOffset, littleEndian);
		},
		Boolean: function (_Boolean) {
		function Boolean(_x3, _x4, _x5) {
		return _Boolean.apply(this, arguments);
		}

		return Boolean;
		}(function (_, dataView, byteOffset) {
		return Boolean(dataView.getUint8(byteOffset));
		}),
		String: function (_String) {
		function String(_x6, _x7, _x8) {
		return _String.apply(this, arguments);
		}
		Boolean.toString = function () {
		return _Boolean.toString();
		};

		String.toString = function () {
		return _String.toString();
		};
		return Boolean;
		}(function (_, dataView, byteOffset) {
		return Boolean(dataView.getUint8(byteOffset));
		}),
		String: function (_String) {
		function String(_x6, _x7, _x8) {
		return _String.apply(this, arguments);
		}

		return String;
		}(function (_ref4, dataView, byteOffset) {
		var byteLength = _ref4.byteLength;
		var encoding = _ref4.encoding;
		String.toString = function () {
		return _String.toString();
		};

		var array = new Uint8Array(dataView.buffer, byteOffset, byteLength);
		return String;
		}(function (_ref4, dataView, byteOffset) {
		var byteLength = _ref4.byteLength;
		var encoding = _ref4.encoding;

		var index = array.indexOf(0);
		if (index >= 0) {
		array = array.subarray(0, index);
		}
		var array = new Uint8Array(dataView.buffer, byteOffset, byteLength);

		if (typeof Buffer === 'function') {
		return new Buffer(array).toString(encoding);
		}
		var index = Array.prototype.indexOf.call(array, 0);
		if (index >= 0) {
		array = array.subarray(0, index);
		}

		/* eslint-disable no-undef */
		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return new TextDecoder(encoding).decode(array);
		}
		/* eslint-enable no-undef */
		if (typeof Buffer === 'function') {
		return new Buffer(array).toString(encoding);
		}

		/* eslint-disable prefer-spread */
		/* istanbul ignore next */
		return String.fromCharCode.apply(String, array);
		/* eslint-enable prefer-spread */
		}),
		Array: function Array(_ref5, dataView, byteOffset) {
		var length = _ref5.length;
		var element = _ref5.element;
		var useProxy = arguments.length <= 3 \|\| arguments[3] === undefined ? length > 20 : arguments[3];
		/* eslint-disable no-undef */
		/* istanbul ignore next */
		if (typeof TextDecoder === 'function') {
		return new TextDecoder(encoding).decode(array);
		}
		/* eslint-enable no-undef */

		var elementProxyHandler = viewVisitor[element.tag];
		var elementWriter = createWriter(element);
		var byteStride = strideof(element);
		/* eslint-disable prefer-spread */
		/* istanbul ignore next */
		return String.fromCharCode.apply(String, array);
		/* eslint-enable prefer-spread */
		}),
		Array: function Array(_ref5, dataView, byteOffset) {
		var length = _ref5.length;
		var element = _ref5.element;
		var useProxy = arguments.length <= 3 \|\| arguments[3] === undefined ? length > 20 : arguments[3];

		return createArrayProxy(length, {
		useProxy: useProxy,
		get: function get(i) {
		var elementByteOffset = byteOffset + byteStride * i;
		return elementProxyHandler(element, dataView, elementByteOffset, useProxy);
		},
		set: function set(i, value) {
		var elementByteOffset = byteOffset + byteStride * i;
		elementWriter(dataView, elementByteOffset, value);
		}
		});
		},
		Tuple: function Tuple(_ref6, dataView, byteOffset, useProxy) {
		var members = _ref6.members;
		var elementProxyHandler = viewVisitor[element.tag];
		var elementWriter = createWriter(element);
		var byteStride = strideof(element);

		var handlers = members.map(function (member) {
		return {
		element: member.element,
		proxyHandler: viewVisitor[member.element.tag],
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset
		};
		});
		return createArrayProxy(length, {
		useProxy: useProxy,
		get: function get(i) {
		var elementByteOffset = byteOffset + byteStride * i;
		return elementProxyHandler(element, dataView, elementByteOffset, useProxy);
		},
		set: function set(i, value) {
		var elementByteOffset = byteOffset + byteStride * i;
		elementWriter(dataView, elementByteOffset, value);
		}
		});
		},
		Tuple: function Tuple(_ref6, dataView, byteOffset, useProxy) {
		var members = _ref6.members;

		return createArrayProxy(members.length, {
		useProxy: false,
		get: function get(i) {
		var _handlers$i = handlers[i];
		var element = _handlers$i.element;
		var proxyHandler = _handlers$i.proxyHandler;
		var totalByteOffset = _handlers$i.totalByteOffset;
		var handlers = members.map(function (member) {
		return {
		element: member.element,
		proxyHandler: viewVisitor[member.element.tag],
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset
		};
		});

		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(i, value) {
		var _handlers$i2 = handlers[i];
		var writer = _handlers$i2.writer;
		var totalByteOffset = _handlers$i2.totalByteOffset;
		return createArrayProxy(members.length, {
		useProxy: false,
		get: function get(i) {
		var _handlers$i = handlers[i];
		var element = _handlers$i.element;
		var proxyHandler = _handlers$i.proxyHandler;
		var totalByteOffset = _handlers$i.totalByteOffset;

		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Struct: function Struct(_ref7, dataView, byteOffset, useProxy) {
		var members = _ref7.members;
		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(i, value) {
		var _handlers$i2 = handlers[i];
		var writer = _handlers$i2.writer;
		var totalByteOffset = _handlers$i2.totalByteOffset;

		var names = members.map(function (member) {
		return member.name;
		});
		var membersByName = members.reduce(function (obj, member) {
		/* eslint-disable no-param-reassign */
		obj[member.name] = {
		element: member.element,
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset,
		proxyHandler: viewVisitor[member.element.tag]
		};
		/* eslint-enable */
		return obj;
		}, Object.create(null));
		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Struct: function Struct(_ref7, dataView, byteOffset, useProxy) {
		var members = _ref7.members;

		return createObjectProxy(names, {
		get: function get(name) {
		var _membersByName$name = membersByName[name];
		var element = _membersByName$name.element;
		var proxyHandler = _membersByName$name.proxyHandler;
		var totalByteOffset = _membersByName$name.totalByteOffset;
		var names = members.map(function (member) {
		return member.name;
		});
		var membersByName = members.reduce(function (obj, member) {
		/* eslint-disable no-param-reassign */
		obj[member.name] = {
		element: member.element,
		writer: createWriter(member.element),
		totalByteOffset: byteOffset + member.byteOffset,
		proxyHandler: viewVisitor[member.element.tag]
		};
		/* eslint-enable */
		return obj;
		}, Object.create(null));

		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(name, value) {
		var _membersByName$name2 = membersByName[name];
		var writer = _membersByName$name2.writer;
		var totalByteOffset = _membersByName$name2.totalByteOffset;
		return createObjectProxy(names, {
		get: function get(name) {
		var _membersByName$name = membersByName[name];
		var element = _membersByName$name.element;
		var proxyHandler = _membersByName$name.proxyHandler;
		var totalByteOffset = _membersByName$name.totalByteOffset;

		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Bitfield: function Bitfield(_ref8, dataView, byteOffset) {
		var element = _ref8.element;
		var members = _ref8.members;
		return proxyHandler(element, dataView, totalByteOffset, useProxy);
		},
		set: function set(name, value) {
		var _membersByName$name2 = membersByName[name];
		var writer = _membersByName$name2.writer;
		var totalByteOffset = _membersByName$name2.totalByteOffset;

		var reader = createReader(element);
		var writer = createWriter(element);
		writer(dataView, totalByteOffset, value);
		}
		});
		},
		Bitfield: function Bitfield(_ref8, dataView, byteOffset) {
		var element = _ref8.element;
		var members = _ref8.members;

		var names = members.map(function (member) {
		return member.name;
		});
		var reader = createReader(element);
		var writer = createWriter(element);

		var currentBitOffset = 0;
		var infoByName = members.reduce(function (info, _ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;
		var names = members.map(function (member) {
		return member.name;
		});

		var bitOffset = currentBitOffset;
		var mask = createMask(bits);
		var clearMask = ~(mask << bitOffset);
		/* eslint-disable no-param-reassign */
		info[name] = { bitOffset: bitOffset, mask: mask, clearMask: clearMask };
		/* eslint-enable */
		currentBitOffset += bits;
		return info;
		}, Object.create(null));
		var currentBitOffset = 0;
		var infoByName = members.reduce(function (info, _ref9) {
		var name = _ref9.name;
		var bits = _ref9.bits;

		return createObjectProxy(names, {
		get: function get(name) {
		var _infoByName$name = infoByName[name];
		var bitOffset = _infoByName$name.bitOffset;
		var mask = _infoByName$name.mask;
		var bitOffset = currentBitOffset;
		var mask = createMask(bits);
		var clearMask = ~(mask << bitOffset);
		/* eslint-disable no-param-reassign */
		info[name] = { bitOffset: bitOffset, mask: mask, clearMask: clearMask };
		/* eslint-enable */
		currentBitOffset += bits;
		return info;
		}, Object.create(null));

		var elementValue = reader(dataView, byteOffset);
		return elementValue >>> bitOffset & mask;
		},
		set: function set(name, value) {
		var _infoByName$name2 = infoByName[name];
		var bitOffset = _infoByName$name2.bitOffset;
		var clearMask = _infoByName$name2.clearMask;
		var mask = _infoByName$name2.mask;
		return createObjectProxy(names, {
		get: function get(name) {
		var _infoByName$name = infoByName[name];
		var bitOffset = _infoByName$name.bitOffset;
		var mask = _infoByName$name.mask;

		var elementValue = reader(dataView, byteOffset);
		elementValue &= clearMask;
		elementValue \|= (value & mask) << bitOffset;
		writer(dataView, byteOffset, elementValue);
		}
		});
		},
		Buffer: function Buffer(_ref10, dataView, byteOffset) {
		var byteLength = _ref10.byteLength;
		var elementValue = reader(dataView, byteOffset);
		return elementValue >>> bitOffset & mask;
		},
		set: function set(name, value) {
		var _infoByName$name2 = infoByName[name];
		var bitOffset = _infoByName$name2.bitOffset;
		var clearMask = _infoByName$name2.clearMask;
		var mask = _infoByName$name2.mask;

		return new Uint8Array(dataView.buffer, byteOffset, byteLength);
		}
		});
		var elementValue = reader(dataView, byteOffset);
		elementValue &= clearMask;
		elementValue \|= (value & mask) << bitOffset;
		writer(dataView, byteOffset, elementValue);
		}
		});
		},
		Buffer: function Buffer(_ref10, dataView, byteOffset) {
		var byteLength = _ref10.byteLength;

		function createView(type) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];
		var useProxy = arguments[2];
		return new Uint8Array(dataView.buffer, byteOffset, byteLength);
		}
		});

		var dataView = getDataView(buffer);
		function createView(type) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];
		var useProxy = arguments[2];

		var viewHandler = viewVisitor[type.tag];
		var writer = createWriter(type);
		var dataView = getDataView(buffer);

		var view = {
		buffer: dataView.buffer,
		byteOffset: dataView.byteOffset,
		byteLength: dataView.byteLength
		};
		var viewHandler = viewVisitor[type.tag];
		var writer = createWriter(type);

		var cache = void 0;
		Object.defineProperty(view, 'value', {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		var result = viewHandler(type, dataView, 0, useProxy);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		set: function set(value) {
		writer(dataView, 0, value);
		var view = {
		buffer: dataView.buffer,
		byteOffset: dataView.byteOffset,
		byteLength: dataView.byteLength
		};

		var cache = void 0;
		Object.defineProperty(view, 'value', {
		enumerable: true,
		configurable: false,
		get: function get() {
		if (cache) {
		return cache;
		}
		});
		var result = viewHandler(type, dataView, 0, useProxy);
		if ((typeof result === 'undefined' ? 'undefined' : _typeof(result)) === 'object') {
		cache = result;
		}
		return result;
		},
		set: function set(value) {
		writer(dataView, 0, value);
		}
		});

		return Object.seal(view);
		}
		return Object.seal(view);
		}

		/* eslint-disable no-shadow */
		// Since type schemas are immutable, we should always create the same code for the same object
		var createReaderMemoized = maybeMemoize(createReader);
		var createWriterMemoized = maybeMemoize(createWriter);
		var createReaderMemoized = maybeMemoize(createReader);
		var createWriterMemoized = maybeMemoize(createWriter);

		/**
		* Create a decode function for converting a buffer into its JavaScript representation
		*/
		function createDecoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		/**
		* Create a decode function for converting a buffer into its JavaScript representation
		*/
		function createDecoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		}
		var reader = createReaderMemoized(type);
		return function decode(buffer, data) {
		if (buffer === undefined) {
		throw new TypeError('You must specify the buffer the decode');
		}
		var reader = createReaderMemoized(type);
		return function decode(buffer, data) {
		if (buffer === undefined) {
		throw new TypeError('You must specify the buffer the decode');
		}
		var dataView = getDataView(buffer);
		return reader(dataView, 0, data);
		};
		var dataView = getDataView(buffer);
		return reader(dataView, 0, data);
		};
		}

		/**
		* Create an encode function for serializing a JavaScript object or value into a buffer
		*/
		function createEncoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		}
		var writer = createWriterMemoized(type);
		return function encode(data) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];

		/**
		* Create an encode function for serializing a JavaScript object or value into a buffer
		*/
		function createEncoder(type) {
		if (type === undefined) {
		throw new TypeError('You must specify a type to convert with');
		if (data === undefined) {
		throw new TypeError('You must specify the data to encode');
		}
		var writer = createWriterMemoized(type);
		return function encode(data) {
		var buffer = arguments.length <= 1 \|\| arguments[1] === undefined ? new ArrayBuffer(sizeof(type)) : arguments[1];
		var dataView = getDataView(buffer);
		if (sizeof(dataView) < sizeof(type)) {
		throw new RangeError('The provided buffer is too small to store the encoded type');
		}
		writer(dataView, 0, data);
		return buffer;
		};
		}

		if (data === undefined) {
		throw new TypeError('You must specify the data to encode');
		}
		var dataView = getDataView(buffer);
		if (sizeof(dataView) < sizeof(type)) {
		throw new RangeError('The provided buffer is too small to store the encoded type');
		}
		writer(dataView, 0, data);
		return buffer;
		};
		}
		/**
		* Create a converter object that contains both an encoder and a decoder
		*/
		function createConverter(type) {
		/* istanbul ignore next */
		var encode = createEncoder(type);
		/* istanbul ignore next */
		var decode = createDecoder(type);
		/* istanbul ignore next */
		return { type: type, encode: encode, decode: decode };
		}

		/**
		* Create a converter object that contains both an encoder and a decoder
		*/
		function createConverter(type) {
		/* istanbul ignore next */
		var encode = createEncoder(type);
		/* istanbul ignore next */
		var decode = createDecoder(type);
		/* istanbul ignore next */
		return { type: type, encode: encode, decode: decode };
		}
		/**
		* Converting a buffer into its JavaScript representation
		* @deprecated
		*/
		function decode(type, buffer, data) {
		var decode = createDecoder(type);
		return decode(buffer, data);
		}

		/**
		* Converting a buffer into its JavaScript representation
		* @deprecated
		*/
		function decode(type, buffer, data) {
		var decode = createDecoder(type);
		return decode(buffer, data);
		}
		/**
		* Serialize a JavaScript object or value into a buffer
		* @deprecated
		*/
		function encode(type, data, buffer) {
		var encode = createEncoder(type);
		return encode(data, buffer);
		}

		/**
		* Serialize a JavaScript object or value into a buffer
		* @deprecated
		*/
		function encode(type, data, buffer) { var encode = createEncoder(type);
		return encode(data, buffer);
		}

		export { systemLittleEndian, sizeof, alignof, strideof, boolean, bool, int8, uint8, int16, int16le, int16be, uint16, uint16le, uint16be, int32, int32le, int32be, uint32, uint32le, uint32be, float32, float32le, float32be, float64, float64le, float64be, string, array, tuple, struct, bitfield, buffer, createDecoder, createEncoder, createConverter, decode, encode, createView };
		//# sourceMappingURL=structly.mjs.map

+1

-1

dist/structly.mjs.map

		@@ -1,1 +0,1 @@
		{"version":3,"file":null,"sources":["../src/utils.js","../src/types.js","../src/visitors/reader.js","../src/visitors/writer.js","../src/visitors/view.js","../src/converters.js"],"sourcesContent":["/*\n Whether the running system is little endian (true = LE, false = BE)\n /\nexport const systemLittleEndian = (typeof os === 'object')\n / eslint-disable no-undef /\n ? os.endianness() === 'LE'\n / eslint-enable no-undef /\n : new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;\n\n/\n Gets the closest multiple of byteAlignment from byteOffset (base-2 only)\n /\nexport function align(byteOffset, byteAlignment) {\n / eslint-disable no-mixed-operators /\n return (byteOffset + byteAlignment - 1) & ~(byteAlignment - 1);\n}\n\n/\n The byte alignment of the given type\n /\nexport function alignof({ byteAlignment = 0 } = {}) {\n return byteAlignment;\n}\n\n/\n The byte size of the type, excluding alignment padding\n /\nexport function sizeof({ byteLength = 0 } = {}) {\n return byteLength;\n}\n\n/\n The byte size of the type, including alignment padding\n /\nexport function strideof(type, byteAlignment = alignof(type)) {\n return align(sizeof(type), byteAlignment);\n}\n\nexport function createMask(bits) {\n return (bits <= 0) ? 0 : 0xFFFFFFFF >>> (32 - bits);\n}\n\nexport function createVariable(name, stackDepth = 0) {\n return `${name}${stackDepth}`;\n}\n\n/ eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax /\nexport const assign = Object.assign \|\|/ istanbul ignore next / function assign(target) {\n if (target == null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n target = Object(target);\n for (let index = 1, len = arguments.length; index < len; index++) {\n const source = Object(arguments[index]);\n if (source != null) {\n for (const key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n }\n return target;\n};\n\nexport function getDataView(data) {\n if (data instanceof ArrayBuffer) {\n return new DataView(data);\n } else if (ArrayBuffer.isView(data)) {\n const { buffer, byteOffset, byteLength } = data;\n return new DataView(buffer, byteOffset, byteLength);\n }\n throw new TypeError('Invalid input data');\n}\n\n// Memoize if WeakMap if supported, otherwise passthrough\nexport const maybeMemoize = (() => {\n if (typeof WeakMap === 'function') {\n return function memoize(fn) {\n const cache = new WeakMap();\n return function memoized(key) {\n if (!cache.has(key)) {\n cache.set(key, fn(key));\n }\n return cache.get(key);\n };\n };\n }\n / istanbul ignore next /\n return function passthrough(fn) {\n return fn;\n };\n})();\n","/ eslint-disable no-param-reassign /\nimport { systemLittleEndian, align, assign, alignof } from './utils';\n\nfunction createNumberType(kind, size, littleEndian = systemLittleEndian) {\n return Object.freeze({\n tag: 'Number',\n kind,\n byteLength: size,\n byteAlignment: size,\n littleEndian,\n });\n}\n\nexport const boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });\nexport const bool = boolean;\n\nexport const int8 = createNumberType('Int8', 1);\nexport const uint8 = createNumberType('Uint8', 1);\n\nexport const int16 = createNumberType('Int16', 2);\nexport const int16le = createNumberType('Int16', 2, true);\nexport const int16be = createNumberType('Int16', 2, false);\n\nexport const uint16 = createNumberType('Uint16', 2);\nexport const uint16le = createNumberType('Uint16', 2, true);\nexport const uint16be = createNumberType('Uint16', 2, false);\n\nexport const int32 = createNumberType('Int32', 4);\nexport const int32le = createNumberType('Int32', 4, true);\nexport const int32be = createNumberType('Int32', 4, false);\n\nexport const uint32 = createNumberType('Uint32', 4);\nexport const uint32le = createNumberType('Uint32', 4, true);\nexport const uint32be = createNumberType('Uint32', 4, false);\n\nexport const float32 = createNumberType('Float32', 4);\nexport const float32le = createNumberType('Float32', 4, true);\nexport const float32be = createNumberType('Float32', 4, false);\n\nexport const float64 = createNumberType('Float64', 8);\nexport const float64le = createNumberType('Float64', 8, true);\nexport const float64be = createNumberType('Float64', 8, false);\n\n/\n Create a string type.\n /\nexport function string(maxLength, encoding = 'utf8') {\n if (maxLength === undefined) {\n throw new TypeError('You must specify a max length for the string!');\n }\n\n return Object.freeze({\n tag: 'String',\n byteLength: maxLength,\n byteAlignment: 1,\n encoding,\n });\n}\n\n/\n Create an array type.\n /\nexport function array(element, length, { pack } = {}) {\n if (element === undefined) {\n throw new TypeError('You must specify the array element type!');\n }\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the array!');\n }\n\n return Object.freeze({\n tag: 'Array',\n byteLength: length element.byteLength,\n byteAlignment: pack \|\| element.byteAlignment,\n length,\n element,\n });\n}\n\nfunction offsetHelper(tag, elements, inject, pack = 0) {\n let byteOffset = 0;\n let maxByteAlignment = 0;\n\n const members = Object.freeze(elements.map(element => {\n const { byteLength, byteAlignment } = element;\n\n byteOffset = align(byteOffset, pack \|\| byteAlignment);\n\n const result = { byteOffset, element };\n\n if (inject !== undefined) {\n assign(result, inject(element));\n }\n\n byteOffset += byteLength;\n maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);\n\n return Object.freeze(result);\n }));\n\n return Object.freeze({\n tag,\n byteLength: byteOffset,\n byteAlignment: pack \|\| maxByteAlignment,\n members,\n });\n}\n\n/*\n Create a tuple type.\n /\nexport function tuple(...elements) {\n return offsetHelper('Tuple', elements);\n}\n\nfunction injectName({ name }) {\n return { name };\n}\n\n/\n Create a struct type.\n /\nexport function struct(members, { reorder = false, pack = 0 } = {}) {\n if (members === undefined) {\n throw new TypeError('You must specify the struct members!');\n }\n\n pack = Number(pack);\n const memberNames = Object.keys(members);\n\n if (reorder) {\n memberNames.sort((a, b) => alignof(members[a]) - alignof(members[b]));\n }\n\n const sortedMembers = memberNames.map(name => assign({ name }, members[name]));\n\n return offsetHelper('Struct', sortedMembers, injectName, pack);\n}\n\n/\n Create a bitfield type.\n /\nexport function bitfield(members, element = uint32) {\n if (members === undefined) {\n throw new TypeError('You must specify the bitfield members!');\n }\n\n const memberNames = Object.keys(members);\n const totalBits = memberNames.reduce((sum, name) => sum + members[name], 0);\n\n if (totalBits > 8 element.byteLength) {\n throw new RangeError('Sum of bitfield widths is too large for storage element');\n }\n\n return Object.freeze({\n tag: 'Bitfield',\n byteLength: element.byteLength,\n byteAlignment: element.byteAlignment,\n members: Object.freeze(memberNames.map(name => Object.freeze({ name, bits: members[name] }))),\n element,\n });\n}\n\nexport function buffer(length) {\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the buffer!');\n }\n\n return Object.freeze({\n tag: 'Buffer',\n byteLength: length,\n byteAlignment: 1,\n });\n}\n","/* eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\n\nexport const readerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `${resultVar} = dataView.get${kind}(${byteOffsetVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `${resultVar} = Boolean(dataView.getUint8(${byteOffsetVar}));`;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const arrayVar = createVariable('array', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n var ${arrayVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n var ${indexVar} = ${arrayVar}.indexOf(0);\n if (${indexVar} >= 0) {\n ${arrayVar} = ${arrayVar}.subarray(0, ${indexVar});\n }\n ${(() => {\n if (typeof Buffer === 'function') {\n return `${resultVar} = new Buffer(${arrayVar}).toString(${JSON.stringify(encoding)});`;\n }\n\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return `${resultVar} = new TextDecoder(${JSON.stringify(encoding)}).decode(${arrayVar});`;\n }\n\n / istanbul ignore next /\n return `${resultVar} = String.fromCharCode.apply(String, ${arrayVar});`;\n })()}\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${length});\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerResultVar} = ${resultVar}[${indexVar}];\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${indexVar}] = ${innerResultVar};\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${members.length});\n }\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerResultVar} = ${resultVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${i}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyStruct = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyStruct};\n }\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerResultVar} = ${resultVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyBitfield = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyBitfield};\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerResultVar};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${members.map(({ name, bits }) => `\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar} & ${createMask(bits)};\n ${innerResultVar} >>>= ${bits};\n `).join('\\n')}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${resultVar} === void 0 \|\|\n ${resultVar}.buffer !== dataView.buffer \|\|\n ${resultVar}.byteLength !== ${byteOffsetVar} \|\|\n ${resultVar}.byteOffset !== ${byteLength}) {\n ${resultVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n }\n `;\n },\n});\n\nexport function createReader(type) {\n const resultVar = createVariable('result');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, resultVar, `\n \"use strict\";\n ${readerVisitor[type.tag](type, 0)}\n return ${resultVar};\n `);\n}\n","/ eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\n\nexport const writerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `dataView.set${kind}(${byteOffsetVar}, ${dataVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `dataView.setUint8(${byteOffsetVar}, Number(${dataVar}));`;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const lengthVar = createVariable('length', stackDepth);\n\n if (typeof Buffer === 'function') {\n return `\n new Buffer(${dataVar}, ${JSON.stringify(encoding)}).copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ${byteOffsetVar});\n `;\n }\n\n / istanbul ignore next /\n if (typeof TextEncoder === 'function') {\n return `\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(${JSON.stringify(encoding)}).encode(${dataVar}));\n `;\n }\n\n / istanbul ignore next /\n return `\n ${dataVar} = new String(${dataVar});\n for (var ${indexVar} = 0, ${lengthVar} = ${dataVar}.length; ${indexVar} < ${lengthVar}; ++${indexVar}) {\n dataView.setUint8(${byteOffsetVar} + ${indexVar}, ${dataVar}.charCodeAt(${indexVar}));\n }\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerDataVar} = ${dataVar}[${indexVar}];\n ${writerVisitor[element.tag](element, innerStackDepth)}\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerDataVar} = ${dataVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerDataVar} = ${dataVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerDataVar} = 0;\n ${members.slice().reverse().map(({ name, bits }) => `\n ${innerDataVar} <<= ${bits};\n ${innerDataVar} \|= ${dataVar}[${JSON.stringify(name)}] & ${createMask(bits)};\n `).join('\\n')}\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${dataVar}.buffer !== dataView.buffer \|\|\n ${dataVar}.byteLength !== ${byteOffsetVar} \|\|\n ${dataVar}.byteOffset !== ${byteLength}) {\n new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength}).set(${dataVar});\n }\n `;\n },\n});\n\nexport function createWriter(type) {\n const dataVar = createVariable('data');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, dataVar, `\n \"use strict\";\n ${writerVisitor[type.tag](type, 0)}\n `);\n}\n","import { createReader } from './reader';\nimport { createWriter } from './writer';\nimport { sizeof, strideof, getDataView, createMask } from '../utils';\n\nconst SUPPORTS_PROXY = typeof Proxy === 'function';\n\nfunction createArrayProxy(length, { get, set, useProxy = SUPPORTS_PROXY } = {}) {\n const array = new Array(length);\n\n // Lazily compute properties if proxy is available\n if (useProxy) {\n return new Proxy(array, {\n has(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n return (index >= 0) && (index < length);\n }\n return key in target;\n },\n\n get(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n if ((index >= 0) && (index < length)) {\n let cache;\n if (key in target) {\n cache = target[key];\n } else {\n cache = get(index);\n if (typeof cache === 'object') {\n / eslint-disable no-param-reassign /\n target[key] = cache;\n / eslint-enable /\n }\n }\n return cache;\n }\n }\n return target[key];\n },\n\n set(target, key, value) {\n // Check that key is either a number or a numeric string\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n // Check bounds\n if ((index >= 0) && (index < length)) {\n return set(index, value) \|\| true;\n }\n }\n // Don't allow any other properties to be changed\n return false;\n },\n });\n }\n\n // Eagerly compute properties using Object.defineProperty\n for (let i = 0; i < length; ++i) {\n let cache;\n Object.defineProperty(array, i, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(i);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, i),\n });\n }\n\n return Object.freeze(array);\n}\n\nfunction createObjectProxy(keys, { get, set } = {}) {\n const object = {};\n\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n let cache;\n Object.defineProperty(object, key, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(key);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, key),\n });\n }\n\n return Object.freeze(object);\n}\n\nexport const viewVisitor = Object.freeze({\n Number({ littleEndian, kind }, dataView, byteOffset) {\n return dataView[`get${kind}`](byteOffset, littleEndian);\n },\n\n Boolean(_, dataView, byteOffset) {\n return Boolean(dataView.getUint8(byteOffset));\n },\n\n String({ byteLength, encoding }, dataView, byteOffset) {\n let array = new Uint8Array(dataView.buffer, byteOffset, byteLength);\n\n const index = array.indexOf(0);\n if (index >= 0) {\n array = array.subarray(0, index);\n }\n\n if (typeof Buffer === 'function') {\n return new Buffer(array).toString(encoding);\n }\n\n / eslint-disable no-undef /\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return new TextDecoder(encoding).decode(array);\n }\n / eslint-enable no-undef /\n\n / eslint-disable prefer-spread /\n / istanbul ignore next /\n return String.fromCharCode.apply(String, array);\n / eslint-enable prefer-spread /\n },\n\n Array({ length, element }, dataView, byteOffset, useProxy = length > 20) {\n const elementProxyHandler = viewVisitor[element.tag];\n const elementWriter = createWriter(element);\n const byteStride = strideof(element);\n\n return createArrayProxy(length, {\n useProxy,\n get(i) {\n const elementByteOffset = byteOffset + (byteStride i);\n return elementProxyHandler(element, dataView, elementByteOffset, useProxy);\n },\n set(i, value) {\n const elementByteOffset = byteOffset + (byteStride * i);\n elementWriter(dataView, elementByteOffset, value);\n },\n });\n },\n\n Tuple({ members }, dataView, byteOffset, useProxy) {\n const handlers = members.map(member => ({\n element: member.element,\n proxyHandler: viewVisitor[member.element.tag],\n writer: createWriter(member.element),\n totalByteOffset: byteOffset + member.byteOffset,\n }));\n\n return createArrayProxy(members.length, {\n useProxy: false,\n get(i) {\n const { element, proxyHandler, totalByteOffset } = handlers[i];\n return proxyHandler(element, dataView, totalByteOffset, useProxy);\n },\n set(i, value) {\n const { writer, totalByteOffset } = handlers[i];\n writer(dataView, totalByteOffset, value);\n },\n });\n },\n\n Struct({ members }, dataView, byteOffset, useProxy) {\n const names = members.map(member => member.name);\n const membersByName = members.reduce((obj, member) => {\n /* eslint-disable no-param-reassign /\n obj[member.name] = {\n element: member.element,\n writer: createWriter(member.element),\n totalByteOffset: byteOffset + member.byteOffset,\n proxyHandler: viewVisitor[member.element.tag],\n };\n / eslint-enable /\n return obj;\n }, Object.create(null));\n\n return createObjectProxy(names, {\n get(name) {\n const { element, proxyHandler, totalByteOffset } = membersByName[name];\n return proxyHandler(element, dataView, totalByteOffset, useProxy);\n },\n set(name, value) {\n const { writer, totalByteOffset } = membersByName[name];\n writer(dataView, totalByteOffset, value);\n },\n });\n },\n\n Bitfield({ element, members }, dataView, byteOffset) {\n const reader = createReader(element);\n const writer = createWriter(element);\n\n const names = members.map(member => member.name);\n\n let currentBitOffset = 0;\n const infoByName = members.reduce((info, { name, bits }) => {\n const bitOffset = currentBitOffset;\n const mask = createMask(bits);\n const clearMask = ~(mask << bitOffset);\n / eslint-disable no-param-reassign /\n info[name] = { bitOffset, mask, clearMask };\n / eslint-enable /\n currentBitOffset += bits;\n return info;\n }, Object.create(null));\n\n return createObjectProxy(names, {\n get(name) {\n const { bitOffset, mask } = infoByName[name];\n const elementValue = reader(dataView, byteOffset);\n return (elementValue >>> bitOffset) & mask;\n },\n set(name, value) {\n const { bitOffset, clearMask, mask } = infoByName[name];\n let elementValue = reader(dataView, byteOffset);\n elementValue &= clearMask;\n elementValue \|= (value & mask) << bitOffset;\n writer(dataView, byteOffset, elementValue);\n },\n });\n },\n\n Buffer({ byteLength }, dataView, byteOffset) {\n return new Uint8Array(dataView.buffer, byteOffset, byteLength);\n },\n});\n\nexport function createView(type, buffer = new ArrayBuffer(sizeof(type)), useProxy) {\n const dataView = getDataView(buffer);\n\n const viewHandler = viewVisitor[type.tag];\n const writer = createWriter(type);\n\n const view = {\n buffer: dataView.buffer,\n byteOffset: dataView.byteOffset,\n byteLength: dataView.byteLength,\n };\n\n let cache;\n Object.defineProperty(view, 'value', {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = viewHandler(type, dataView, 0, useProxy);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set(value) {\n writer(dataView, 0, value);\n },\n });\n\n return Object.seal(view);\n}\n","/ eslint-disable no-shadow /\nimport { getDataView, sizeof, maybeMemoize } from './utils';\nimport { createReader } from './visitors/reader';\nimport { createWriter } from './visitors/writer';\n\nexport { createView } from './visitors/view';\n\n// Since type schemas are immutable, we should always create the same code for the same object\nconst createReaderMemoized = maybeMemoize(createReader);\nconst createWriterMemoized = maybeMemoize(createWriter);\n\n/\n Create a decode function for converting a buffer into its JavaScript representation\n /\nexport function createDecoder(type) {\n if (type === undefined) {\n throw new TypeError('You must specify a type to convert with');\n }\n const reader = createReaderMemoized(type);\n return function decode(buffer, data) {\n if (buffer === undefined) {\n throw new TypeError('You must specify the buffer the decode');\n }\n const dataView = getDataView(buffer);\n return reader(dataView, 0, data);\n };\n}\n\n/\n Create an encode function for serializing a JavaScript object or value into a buffer\n /\nexport function createEncoder(type) {\n if (type === undefined) {\n throw new TypeError('You must specify a type to convert with');\n }\n const writer = createWriterMemoized(type);\n return function encode(data, buffer = new ArrayBuffer(sizeof(type))) {\n if (data === undefined) {\n throw new TypeError('You must specify the data to encode');\n }\n const dataView = getDataView(buffer);\n if (sizeof(dataView) < sizeof(type)) {\n throw new RangeError('The provided buffer is too small to store the encoded type');\n }\n writer(dataView, 0, data);\n return buffer;\n };\n}\n\n/\n Create a converter object that contains both an encoder and a decoder\n /\nexport function createConverter(type) {\n / istanbul ignore next /\n const encode = createEncoder(type);\n / istanbul ignore next /\n const decode = createDecoder(type);\n / istanbul ignore next /\n return { type, encode, decode };\n}\n\n/\n Converting a buffer into its JavaScript representation\n * @deprecated\n /\nexport function decode(type, buffer, data) {\n const decode = createDecoder(type);\n return decode(buffer, data);\n}\n\n/\n Serialize a JavaScript object or value into a buffer\n * @deprecated\n */\nexport function encode(type, data, buffer) {\n const encode = createEncoder(type);\n return encode(data, 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		{"version":3,"file":null,"sources":["../src/utils.js","../src/types.js","../src/visitors/reader.js","../src/visitors/writer.js","../src/visitors/view.js","../src/converters.js"],"sourcesContent":["/*\n Whether the running system is little endian (true = LE, false = BE)\n /\nexport const systemLittleEndian = (typeof os === 'object')\n / eslint-disable no-undef /\n ? os.endianness() === 'LE'\n / eslint-enable no-undef /\n : new Uint32Array(new Uint8Array([0x11, 0x22, 0x33, 0x44]).buffer)[0] === 0x44332211;\n\n/\n Gets the closest multiple of byteAlignment from byteOffset (base-2 only)\n /\nexport function align(byteOffset, byteAlignment) {\n / eslint-disable no-mixed-operators /\n return (byteOffset + byteAlignment - 1) & ~(byteAlignment - 1);\n}\n\n/\n The byte alignment of the given type\n /\nexport function alignof({ byteAlignment = 0 } = {}) {\n return byteAlignment;\n}\n\n/\n The byte size of the type, excluding alignment padding\n /\nexport function sizeof({ byteLength = 0 } = {}) {\n return byteLength;\n}\n\n/\n The byte size of the type, including alignment padding\n /\nexport function strideof(type, byteAlignment = alignof(type)) {\n return align(sizeof(type), byteAlignment);\n}\n\nexport function createMask(bits) {\n return (bits <= 0) ? 0 : 0xFFFFFFFF >>> (32 - bits);\n}\n\nexport function createVariable(name, stackDepth = 0) {\n return `${name}${stackDepth}`;\n}\n\n/ eslint-disable no-param-reassign, prefer-rest-params, no-restricted-syntax /\nexport const assign = Object.assign \|\|/ istanbul ignore next / function assign(target) {\n if (target == null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n target = Object(target);\n for (let index = 1, len = arguments.length; index < len; index++) {\n const source = Object(arguments[index]);\n if (source != null) {\n for (const key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n }\n return target;\n};\n\nexport function getDataView(data) {\n if (data instanceof DataView) {\n return data;\n } else if (data instanceof ArrayBuffer) {\n return new DataView(data);\n } else if (ArrayBuffer.isView(data)) {\n const { buffer, byteOffset, byteLength } = data;\n return new DataView(buffer, byteOffset, byteLength);\n }\n throw new TypeError('Invalid input data');\n}\n// Memoize if WeakMap if supported, otherwise passthrough\nexport const maybeMemoize = (() => {\n if (typeof WeakMap === 'function') {\n return function memoize(fn) {\n const cache = new WeakMap();\n return function memoized(key) {\n if (!cache.has(key)) {\n cache.set(key, fn(key));\n }\n return cache.get(key);\n };\n };\n }\n / istanbul ignore next /\n return function passthrough(fn) {\n return fn;\n };\n})();\n","/ eslint-disable no-param-reassign /\nimport { systemLittleEndian, align, assign, alignof } from './utils';\n\nfunction createNumberType(kind, size, littleEndian = systemLittleEndian) {\n return Object.freeze({\n tag: 'Number',\n kind,\n byteLength: size,\n byteAlignment: size,\n littleEndian,\n });\n}\n\nexport const boolean = Object.freeze({ tag: 'Boolean', byteLength: 1, byteAlignment: 1 });\nexport const bool = boolean;\n\nexport const int8 = createNumberType('Int8', 1);\nexport const uint8 = createNumberType('Uint8', 1);\n\nexport const int16 = createNumberType('Int16', 2);\nexport const int16le = createNumberType('Int16', 2, true);\nexport const int16be = createNumberType('Int16', 2, false);\n\nexport const uint16 = createNumberType('Uint16', 2);\nexport const uint16le = createNumberType('Uint16', 2, true);\nexport const uint16be = createNumberType('Uint16', 2, false);\n\nexport const int32 = createNumberType('Int32', 4);\nexport const int32le = createNumberType('Int32', 4, true);\nexport const int32be = createNumberType('Int32', 4, false);\n\nexport const uint32 = createNumberType('Uint32', 4);\nexport const uint32le = createNumberType('Uint32', 4, true);\nexport const uint32be = createNumberType('Uint32', 4, false);\n\nexport const float32 = createNumberType('Float32', 4);\nexport const float32le = createNumberType('Float32', 4, true);\nexport const float32be = createNumberType('Float32', 4, false);\n\nexport const float64 = createNumberType('Float64', 8);\nexport const float64le = createNumberType('Float64', 8, true);\nexport const float64be = createNumberType('Float64', 8, false);\n\n/\n Create a string type.\n /\nexport function string(maxLength, encoding = 'utf8') {\n if (maxLength === undefined) {\n throw new TypeError('You must specify a max length for the string!');\n }\n\n return Object.freeze({\n tag: 'String',\n byteLength: maxLength,\n byteAlignment: 1,\n encoding,\n });\n}\n\n/\n Create an array type.\n /\nexport function array(element, length, { pack } = {}) {\n if (element === undefined) {\n throw new TypeError('You must specify the array element type!');\n }\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the array!');\n }\n\n return Object.freeze({\n tag: 'Array',\n byteLength: length element.byteLength,\n byteAlignment: pack \|\| element.byteAlignment,\n length,\n element,\n });\n}\n\nfunction offsetHelper(tag, elements, inject, pack = 0) {\n let byteOffset = 0;\n let maxByteAlignment = 0;\n\n const members = Object.freeze(elements.map(element => {\n const { byteLength, byteAlignment } = element;\n\n byteOffset = align(byteOffset, pack \|\| byteAlignment);\n\n const result = { byteOffset, element };\n\n if (inject !== undefined) {\n assign(result, inject(element));\n }\n\n byteOffset += byteLength;\n maxByteAlignment = Math.max(maxByteAlignment, byteAlignment);\n\n return Object.freeze(result);\n }));\n\n return Object.freeze({\n tag,\n byteLength: byteOffset,\n byteAlignment: pack \|\| maxByteAlignment,\n members,\n });\n}\n\n/*\n Create a tuple type.\n /\nexport function tuple(...elements) {\n return offsetHelper('Tuple', elements);\n}\n\nfunction injectName({ name }) {\n return { name };\n}\n\n/\n Create a struct type.\n /\nexport function struct(members, { reorder = false, pack = 0 } = {}) {\n if (members === undefined) {\n throw new TypeError('You must specify the struct members!');\n }\n\n pack = Number(pack);\n const memberNames = Object.keys(members);\n\n if (reorder) {\n memberNames.sort((a, b) => alignof(members[a]) - alignof(members[b]));\n }\n\n const sortedMembers = memberNames.map(name => assign({ name }, members[name]));\n\n return offsetHelper('Struct', sortedMembers, injectName, pack);\n}\n\n/\n Create a bitfield type.\n /\nexport function bitfield(members, element = uint32) {\n if (members === undefined) {\n throw new TypeError('You must specify the bitfield members!');\n }\n\n const memberNames = Object.keys(members);\n const totalBits = memberNames.reduce((sum, name) => sum + members[name], 0);\n\n if (totalBits > 8 element.byteLength) {\n throw new RangeError('Sum of bitfield widths is too large for storage element');\n }\n\n return Object.freeze({\n tag: 'Bitfield',\n byteLength: element.byteLength,\n byteAlignment: element.byteAlignment,\n members: Object.freeze(memberNames.map(name => Object.freeze({ name, bits: members[name] }))),\n element,\n });\n}\n\nexport function buffer(length) {\n if (length === undefined \|\| typeof length !== 'number') {\n throw new TypeError('You must specify a length of the buffer!');\n }\n\n return Object.freeze({\n tag: 'Buffer',\n byteLength: length,\n byteAlignment: 1,\n });\n}\n","/* eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\nimport { uint8 } from '../types';\n\nexport const readerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `${resultVar} = dataView.get${kind}(${byteOffsetVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n\n return `\n ${readerVisitor.Number(uint8, stackDepth)}\n ${resultVar} = Boolean(${resultVar});\n `;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const arrayVar = createVariable('array', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n var ${arrayVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n var ${indexVar} = Array.prototype.indexOf.call(${arrayVar}, 0);\n ${(() => {\n if (typeof Buffer === 'function') {\n return `\n ${resultVar} = new Buffer(${arrayVar}.buffer)\n .slice(${byteOffsetVar}, ${byteOffsetVar} + (${indexVar} >= 0 ? ${indexVar} : ${byteLength}))\n .toString(${JSON.stringify(encoding)});\n `;\n }\n\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return `\n if (${indexVar} >= 0) {\n ${arrayVar} = new Uint8Array(${arrayVar}.buffer, ${byteOffsetVar}, ${indexVar});\n }\n ${resultVar} = new TextDecoder(${JSON.stringify(encoding)}).decode(${arrayVar});\n `;\n }\n\n / istanbul ignore next /\n return `\n if (${indexVar} >= 0) {\n ${arrayVar} = new Uint8Array(${arrayVar}.buffer, ${byteOffsetVar}, ${indexVar});\n }\n ${resultVar} = String.fromCharCode.apply(String, ${arrayVar});\n `;\n })()}\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${length});\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerResultVar} = ${resultVar}[${indexVar}];\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${indexVar}] = ${innerResultVar};\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = new Array(${members.length});\n }\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerResultVar} = ${resultVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${i}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyStruct = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyStruct};\n }\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerResultVar} = ${resultVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar};\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerResultVar = createVariable('result', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const emptyBitfield = `{ ${members.map(({ name }) => `${JSON.stringify(name)}: undefined`).join(', ')} }`;\n\n return `\n if (${resultVar} === void 0) {\n ${resultVar} = ${emptyBitfield};\n }\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerResultVar};\n ${readerVisitor[element.tag](element, innerStackDepth)}\n ${members.map(({ name, bits }) => `\n ${resultVar}[${JSON.stringify(name)}] = ${innerResultVar} & ${createMask(bits)};\n ${innerResultVar} >>>= ${bits};\n `).join('\\n')}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const resultVar = createVariable('result', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${resultVar} === void 0 \|\|\n ${resultVar}.buffer !== dataView.buffer \|\|\n ${resultVar}.byteOffset !== ${byteOffsetVar} \|\|\n ${resultVar}.byteLength !== ${byteLength}) {\n ${resultVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});\n }\n `;\n },\n});\n\nexport function createReader(type) {\n const resultVar = createVariable('result');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, resultVar, `\n \"use strict\";\n ${readerVisitor[type.tag](type, 0)}\n return ${resultVar};\n `);\n}\n","/ eslint-disable max-len, no-new-func /\nimport { strideof, createMask, createVariable } from '../utils';\nimport { uint8 } from '../types';\n\nexport const writerVisitor = Object.freeze({\n Number({ littleEndian, kind }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `dataView.set${kind}(${byteOffsetVar}, ${dataVar}, ${littleEndian});`;\n },\n\n Boolean(_, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n\n return `\n ${dataVar} = Number(${dataVar});\n ${writerVisitor.Number(uint8, stackDepth)}\n `;\n },\n\n String({ byteLength, encoding }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const lengthVar = createVariable('length', stackDepth);\n\n if (typeof Buffer === 'function') {\n return `\n new Buffer(${dataVar}, ${JSON.stringify(encoding)}).copy(new Buffer(dataView.buffer, dataView.byteOffset, dataView.byteLength), ${byteOffsetVar});\n `;\n }\n\n / istanbul ignore next /\n if (typeof TextEncoder === 'function') {\n return `\n new Uint8Array(dataView.buffer, dataView.byteOffset, dataView.byteLength).set(new TextDecoder(${JSON.stringify(encoding)}).encode(${dataVar}));\n `;\n }\n\n / istanbul ignore next /\n return `\n ${dataVar} = new String(${dataVar});\n for (var ${indexVar} = 0, ${lengthVar} = ${dataVar}.length; ${indexVar} < ${lengthVar}; ++${indexVar}) {\n dataView.setUint8(${byteOffsetVar} + ${indexVar}, ${dataVar}.charCodeAt(${indexVar}));\n }\n `;\n },\n\n Array({ byteAlignment, length, element, pack }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const indexVar = createVariable('i', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n const stride = strideof(element, byteAlignment);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n for (var ${indexVar} = 0; ${indexVar} < ${length}; ++${indexVar}) {\n var ${innerDataVar} = ${dataVar}[${indexVar}];\n ${writerVisitor[element.tag](element, innerStackDepth)}\n ${innerByteOffsetVar} += ${stride};\n }\n `;\n },\n\n Tuple({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ element, byteOffset }, i) => `\n var ${innerDataVar} = ${dataVar}[${i}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Struct({ members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n ${members.map(({ name, element, byteOffset }) => `\n var ${innerDataVar} = ${dataVar}[${JSON.stringify(name)}];\n var ${innerByteOffsetVar} = ${byteOffsetVar} + ${byteOffset};\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `).join('\\n')}\n `;\n },\n\n Bitfield({ element, members }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n const innerStackDepth = stackDepth + 1;\n const innerDataVar = createVariable('data', innerStackDepth);\n const innerByteOffsetVar = createVariable('byteOffset', innerStackDepth);\n\n return `\n var ${innerByteOffsetVar} = ${byteOffsetVar};\n var ${innerDataVar} = 0;\n ${members.slice().reverse().map(({ name, bits }) => `\n ${innerDataVar} <<= ${bits};\n ${innerDataVar} \|= ${dataVar}[${JSON.stringify(name)}] & ${createMask(bits)};\n `).join('\\n')}\n ${writerVisitor[element.tag](element, innerStackDepth)}\n `;\n },\n\n Buffer({ byteLength }, stackDepth) {\n const dataVar = createVariable('data', stackDepth);\n const byteOffsetVar = createVariable('byteOffset', stackDepth);\n\n return `\n if (${dataVar}.buffer !== dataView.buffer \|\|\n ${dataVar}.byteOffset !== ${byteOffsetVar} \|\|\n ${dataVar}.byteLength !== ${byteLength}) {\n new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength}).set(${dataVar});\n }\n `;\n },\n});\n\nexport function createWriter(type) {\n const dataVar = createVariable('data');\n const byteOffsetVar = createVariable('byteOffset');\n\n return new Function('dataView', byteOffsetVar, dataVar, `\n \"use strict\";\n ${writerVisitor[type.tag](type, 0)}\n `);\n}\n","import { createReader } from './reader';\nimport { createWriter } from './writer';\nimport { sizeof, strideof, getDataView, createMask } from '../utils';\n\nconst SUPPORTS_PROXY = typeof Proxy === 'function';\n\nfunction createArrayProxy(length, { get, set, useProxy = SUPPORTS_PROXY } = {}) {\n const array = new Array(length);\n\n // Lazily compute properties if proxy is available\n if (useProxy) {\n return new Proxy(array, {\n has(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n return (index >= 0) && (index < length);\n }\n return key in target;\n },\n\n get(target, key) {\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n if ((index >= 0) && (index < length)) {\n let cache;\n if (key in target) {\n cache = target[key];\n } else {\n cache = get(index);\n if (typeof cache === 'object') {\n / eslint-disable no-param-reassign /\n target[key] = cache;\n / eslint-enable /\n }\n }\n return cache;\n }\n }\n return target[key];\n },\n\n set(target, key, value) {\n // Check that key is either a number or a numeric string\n if (typeof key !== 'symbol' && !isNaN(key)) {\n const index = parseInt(key, 10);\n // Check bounds\n if ((index >= 0) && (index < length)) {\n return set(index, value) \|\| true;\n }\n }\n // Don't allow any other properties to be changed\n return false;\n },\n });\n }\n\n // Eagerly compute properties using Object.defineProperty\n for (let i = 0; i < length; ++i) {\n let cache;\n Object.defineProperty(array, i, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(i);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, i),\n });\n }\n\n return Object.freeze(array);\n}\n\nfunction createObjectProxy(keys, { get, set } = {}) {\n const object = {};\n\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n let cache;\n Object.defineProperty(object, key, {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = get(key);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set: set.bind(undefined, key),\n });\n }\n\n return Object.freeze(object);\n}\n\nexport const viewVisitor = Object.freeze({\n Number({ littleEndian, kind }, dataView, byteOffset) {\n return dataView[`get${kind}`](byteOffset, littleEndian);\n },\n\n Boolean(_, dataView, byteOffset) {\n return Boolean(dataView.getUint8(byteOffset));\n },\n\n String({ byteLength, encoding }, dataView, byteOffset) {\n let array = new Uint8Array(dataView.buffer, byteOffset, byteLength);\n\n const index = Array.prototype.indexOf.call(array, 0);\n if (index >= 0) {\n array = array.subarray(0, index);\n }\n\n if (typeof Buffer === 'function') {\n return new Buffer(array).toString(encoding);\n }\n\n / eslint-disable no-undef /\n / istanbul ignore next /\n if (typeof TextDecoder === 'function') {\n return new TextDecoder(encoding).decode(array);\n }\n / eslint-enable no-undef /\n\n / eslint-disable prefer-spread /\n / istanbul ignore next /\n return String.fromCharCode.apply(String, array);\n / eslint-enable prefer-spread /\n },\n\n Array({ length, element }, dataView, byteOffset, useProxy = length > 20) {\n const elementProxyHandler = viewVisitor[element.tag];\n const elementWriter = createWriter(element);\n const byteStride = strideof(element);\n\n return createArrayProxy(length, {\n useProxy,\n get(i) {\n const elementByteOffset = byteOffset + (byteStride i);\n return elementProxyHandler(element, dataView, elementByteOffset, useProxy);\n },\n set(i, value) {\n const elementByteOffset = byteOffset + (byteStride * i);\n elementWriter(dataView, elementByteOffset, value);\n },\n });\n },\n\n Tuple({ members }, dataView, byteOffset, useProxy) {\n const handlers = members.map(member => ({\n element: member.element,\n proxyHandler: viewVisitor[member.element.tag],\n writer: createWriter(member.element),\n totalByteOffset: byteOffset + member.byteOffset,\n }));\n\n return createArrayProxy(members.length, {\n useProxy: false,\n get(i) {\n const { element, proxyHandler, totalByteOffset } = handlers[i];\n return proxyHandler(element, dataView, totalByteOffset, useProxy);\n },\n set(i, value) {\n const { writer, totalByteOffset } = handlers[i];\n writer(dataView, totalByteOffset, value);\n },\n });\n },\n\n Struct({ members }, dataView, byteOffset, useProxy) {\n const names = members.map(member => member.name);\n const membersByName = members.reduce((obj, member) => {\n /* eslint-disable no-param-reassign /\n obj[member.name] = {\n element: member.element,\n writer: createWriter(member.element),\n totalByteOffset: byteOffset + member.byteOffset,\n proxyHandler: viewVisitor[member.element.tag],\n };\n / eslint-enable /\n return obj;\n }, Object.create(null));\n\n return createObjectProxy(names, {\n get(name) {\n const { element, proxyHandler, totalByteOffset } = membersByName[name];\n return proxyHandler(element, dataView, totalByteOffset, useProxy);\n },\n set(name, value) {\n const { writer, totalByteOffset } = membersByName[name];\n writer(dataView, totalByteOffset, value);\n },\n });\n },\n\n Bitfield({ element, members }, dataView, byteOffset) {\n const reader = createReader(element);\n const writer = createWriter(element);\n\n const names = members.map(member => member.name);\n\n let currentBitOffset = 0;\n const infoByName = members.reduce((info, { name, bits }) => {\n const bitOffset = currentBitOffset;\n const mask = createMask(bits);\n const clearMask = ~(mask << bitOffset);\n / eslint-disable no-param-reassign /\n info[name] = { bitOffset, mask, clearMask };\n / eslint-enable /\n currentBitOffset += bits;\n return info;\n }, Object.create(null));\n\n return createObjectProxy(names, {\n get(name) {\n const { bitOffset, mask } = infoByName[name];\n const elementValue = reader(dataView, byteOffset);\n return (elementValue >>> bitOffset) & mask;\n },\n set(name, value) {\n const { bitOffset, clearMask, mask } = infoByName[name];\n let elementValue = reader(dataView, byteOffset);\n elementValue &= clearMask;\n elementValue \|= (value & mask) << bitOffset;\n writer(dataView, byteOffset, elementValue);\n },\n });\n },\n\n Buffer({ byteLength }, dataView, byteOffset) {\n return new Uint8Array(dataView.buffer, byteOffset, byteLength);\n },\n});\n\nexport function createView(type, buffer = new ArrayBuffer(sizeof(type)), useProxy) {\n const dataView = getDataView(buffer);\n\n const viewHandler = viewVisitor[type.tag];\n const writer = createWriter(type);\n\n const view = {\n buffer: dataView.buffer,\n byteOffset: dataView.byteOffset,\n byteLength: dataView.byteLength,\n };\n\n let cache;\n Object.defineProperty(view, 'value', {\n enumerable: true,\n configurable: false,\n get() {\n if (cache) {\n return cache;\n }\n const result = viewHandler(type, dataView, 0, useProxy);\n if (typeof result === 'object') {\n cache = result;\n }\n return result;\n },\n set(value) {\n writer(dataView, 0, value);\n },\n });\n\n return Object.seal(view);\n}\n","/ eslint-disable no-shadow /\nimport { getDataView, sizeof, maybeMemoize } from './utils';\nimport { createReader } from './visitors/reader';\nimport { createWriter } from './visitors/writer';\n\nexport { createView } from './visitors/view';\n\n// Since type schemas are immutable, we should always create the same code for the same object\nconst createReaderMemoized = maybeMemoize(createReader);\nconst createWriterMemoized = maybeMemoize(createWriter);\n\n/\n Create a decode function for converting a buffer into its JavaScript representation\n /\nexport function createDecoder(type) {\n if (type === undefined) {\n throw new TypeError('You must specify a type to convert with');\n }\n const reader = createReaderMemoized(type);\n return function decode(buffer, data) {\n if (buffer === undefined) {\n throw new TypeError('You must specify the buffer the decode');\n }\n const dataView = getDataView(buffer);\n return reader(dataView, 0, data);\n };\n}\n\n/\n Create an encode function for serializing a JavaScript object or value into a buffer\n /\nexport function createEncoder(type) {\n if (type === undefined) {\n throw new TypeError('You must specify a type to convert with');\n }\n const writer = createWriterMemoized(type);\n return function encode(data, buffer = new ArrayBuffer(sizeof(type))) {\n if (data === undefined) {\n throw new TypeError('You must specify the data to encode');\n }\n const dataView = getDataView(buffer);\n if (sizeof(dataView) < sizeof(type)) {\n throw new RangeError('The provided buffer is too small to store the encoded type');\n }\n writer(dataView, 0, data);\n return buffer;\n };\n}\n\n/\n Create a converter object that contains both an encoder and a decoder\n /\nexport function createConverter(type) {\n / istanbul ignore next /\n const encode = createEncoder(type);\n / istanbul ignore next /\n const decode = createDecoder(type);\n / istanbul ignore next /\n return { type, encode, decode };\n}\n\n/\n Converting a buffer into its JavaScript representation\n * @deprecated\n /\nexport function decode(type, buffer, data) {\n const decode = createDecoder(type);\n return decode(buffer, data);\n}\n\n/\n Serialize a JavaScript object or value into a buffer\n * @deprecated\n */\nexport function encode(type, data, buffer) {\n const encode = createEncoder(type);\n return encode(data, 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+1

-1

package.json

		{
		"name": "structly",
		"version": "0.3.2",
		"version": "0.3.3",
		"license": "MIT",
		@@ -5,0 +5,0 @@ "description": "Tool for working with binary data types in JavaScript",

+3

-2

src/utils.js

		@@ -67,3 +67,5 @@ /**
		export function getDataView(data) {
		if (data instanceof ArrayBuffer) {
		if (data instanceof DataView) {
		return data;
		} else if (data instanceof ArrayBuffer) {
		return new DataView(data);
		@@ -76,3 +78,2 @@ } else if (ArrayBuffer.isView(data)) {
		}

		// Memoize if WeakMap if supported, otherwise passthrough
		@@ -79,0 +80,0 @@ export const maybeMemoize = (() => {

+25

-11

src/visitors/reader.js

		/* eslint-disable max-len, no-new-func */
		import { strideof, createMask, createVariable } from '../utils';
		import { uint8 } from '../types';

		@@ -14,5 +15,7 @@ export const readerVisitor = Object.freeze({
		const resultVar = createVariable('result', stackDepth);
		const byteOffsetVar = createVariable('byteOffset', stackDepth);

		return `${resultVar} = Boolean(dataView.getUint8(${byteOffsetVar}));`;
		return `
		${readerVisitor.Number(uint8, stackDepth)}
		${resultVar} = Boolean(${resultVar});
		`;
		},
		@@ -28,9 +31,10 @@
		var ${arrayVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});
		var ${indexVar} = ${arrayVar}.indexOf(0);
		if (${indexVar} >= 0) {
		${arrayVar} = ${arrayVar}.subarray(0, ${indexVar});
		}
		var ${indexVar} = Array.prototype.indexOf.call(${arrayVar}, 0);
		${(() => {
		if (typeof Buffer === 'function') {
		return `${resultVar} = new Buffer(${arrayVar}).toString(${JSON.stringify(encoding)});`;
		return `
		${resultVar} = new Buffer(${arrayVar}.buffer)
		.slice(${byteOffsetVar}, ${byteOffsetVar} + (${indexVar} >= 0 ? ${indexVar} : ${byteLength}))
		.toString(${JSON.stringify(encoding)});
		`;
		}
		@@ -40,7 +44,17 @@
		if (typeof TextDecoder === 'function') {
		return `${resultVar} = new TextDecoder(${JSON.stringify(encoding)}).decode(${arrayVar});`;
		return `
		if (${indexVar} >= 0) {
		${arrayVar} = new Uint8Array(${arrayVar}.buffer, ${byteOffsetVar}, ${indexVar});
		}
		${resultVar} = new TextDecoder(${JSON.stringify(encoding)}).decode(${arrayVar});
		`;
		}

		/* istanbul ignore next */
		return `${resultVar} = String.fromCharCode.apply(String, ${arrayVar});`;
		return `
		if (${indexVar} >= 0) {
		${arrayVar} = new Uint8Array(${arrayVar}.buffer, ${byteOffsetVar}, ${indexVar});
		}
		${resultVar} = String.fromCharCode.apply(String, ${arrayVar});
		`;
		})()}
		@@ -143,4 +157,4 @@ `;
		${resultVar}.buffer !== dataView.buffer \|\|
		${resultVar}.byteLength !== ${byteOffsetVar} \|\|
		${resultVar}.byteOffset !== ${byteLength}) {
		${resultVar}.byteOffset !== ${byteOffsetVar} \|\|
		${resultVar}.byteLength !== ${byteLength}) {
		${resultVar} = new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength});
		@@ -147,0 +161,0 @@ }

+1

-1

src/visitors/view.js

		@@ -118,3 +118,3 @@ import { createReader } from './reader';

		const index = array.indexOf(0);
		const index = Array.prototype.indexOf.call(array, 0);
		if (index >= 0) {
		@@ -121,0 +121,0 @@ array = array.subarray(0, index);

+7

-4

src/visitors/writer.js

		/* eslint-disable max-len, no-new-func */
		import { strideof, createMask, createVariable } from '../utils';
		import { uint8 } from '../types';

		@@ -14,5 +15,7 @@ export const writerVisitor = Object.freeze({
		const dataVar = createVariable('data', stackDepth);
		const byteOffsetVar = createVariable('byteOffset', stackDepth);

		return `dataView.setUint8(${byteOffsetVar}, Number(${dataVar}));`;
		return `
		${dataVar} = Number(${dataVar});
		${writerVisitor.Number(uint8, stackDepth)}
		`;
		},
		@@ -123,4 +126,4 @@
		if (${dataVar}.buffer !== dataView.buffer \|\|
		${dataVar}.byteLength !== ${byteOffsetVar} \|\|
		${dataVar}.byteOffset !== ${byteLength}) {
		${dataVar}.byteOffset !== ${byteOffsetVar} \|\|
		${dataVar}.byteLength !== ${byteLength}) {
		new Uint8Array(dataView.buffer, ${byteOffsetVar}, ${byteLength}).set(${dataVar});
		@@ -127,0 +130,0 @@ }

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