@msgpack/msgpack - npm Package Compare versions

Comparing version 1.5.0 to 1.6.0

CHANGELOG.md

 This is the revision history of @msgpack/msgpack
 
+## v1.6.0 2019/07/19
+
+https://github.com/msgpack/msgpack-javascript/compare/v1.5.0...v1.6.0
+
+* Add `EncodeOptions.forceFloat32` to encode non-integer numbers in float32 (default to float64) [#79](https://github.com/msgpack/msgpack-javascript/pull/79)
+
 ## v1.5.0 2019/07/17
@@ -4,0 +10,0 @@

dist.es5/msgpack.min.js

@@ -1,2 +0,2 @@
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if(203===e)t=this.readF64();else if(204===e)t=this.readU8();else if(205===e)t=this.readU16();else if(206===e)t=this.readU32();else if(207===e)t=this.readU64();else if(208===e)t=this.readI8();else if(209===e)t=this.readI16();else if(210===e)t=this.readI32();else if(211===e)t=this.readI64();else if(217===e){r=this.lookU8();t=this.decodeUtf8String(r,1)}else if(218===e){r=this.lookU16();t=this.decodeUtf8String(r,2)}else if(219===e){r=this.lookU32();t=this.decodeUtf8String(r,4)}else if(220===e){if(0!==(n=this.readU16())){this.pushArrayState(n),this.complete();continue e}t=[]}else if(221===e){if(0!==(n=this.readU32())){this.pushArrayState(n),this.complete();continue e}t=[]}else if(222===e){if(0!==(n=this.readU16())){this.pushMapState(n),this.complete();continue e}t={}}else if(223===e){if(0!==(n=this.readU32())){this.pushMapState(n),this.complete();continue e}t={}}else if(196===e){var n=this.lookU8();t=this.decodeBinary(n,1)}else if(197===e){n=this.lookU16();t=this.decodeBinary(n,2)}else if(198===e){n=this.lookU32();t=this.decodeBinary(n,4)}else if(212===e)t=this.decodeExtension(1,0);else if(213===e)t=this.decodeExtension(2,0);else if(214===e)t=this.decodeExtension(4,0);else if(215===e)t=this.decodeExtension(8,0);else if(216===e)t=this.decodeExtension(16,0);else if(199===e){n=this.lookU8();t=this.decodeExtension(n,1)}else if(200===e){n=this.lookU16();t=this.decodeExtension(n,2)}else{if(201!==e)throw new Error("Unrecognized type byte: "+D(e));n=this.lookU32();t=this.decodeExtension(n,4)}this.complete();for(var i=this.stack;i.length>0;){var o=i[i.length-1];if(o.type===_.ARRAY){if(o.array[o.position]=t,o.position++,o.position!==o.size)continue e;i.pop(),t=o.array}else{if(o.type===_.MAP_KEY){if("string"!=typeof t)throw new Error("The type of key must be string but "+typeof t);o.key=t,o.type=_.MAP_VALUE;continue e}if(o.type===_.MAP_VALUE){if(o.map[o.key]=t,o.readCount++,o.readCount!==o.size){o.key=null,o.type=_.MAP_KEY;continue e}i.pop(),t=o.map}}}return t}},e.prototype.readHeadByte=function(){return this.headByte===W&&(this.headByte=this.readU8()),this.headByte},e.prototype.complete=function(){this.headByte=W},e.prototype.readArraySize=function(){var e=this.readHeadByte();switch(e){case 220:return this.readU16();case 221:return this.readU32();default:if(e<160)return e-144;throw new Error("Unrecognized array type byte: "+D(e))}},e.prototype.pushMapState=function(e){if(e>this.maxMapLength)throw new Error("Max length exceeded: map length ("+e+") > maxMapLengthLength ("+this.maxMapLength+")");this.stack.push({type:_.MAP_KEY,size:e,key:null,readCount:0,map:{}})},e.prototype.pushArrayState=function(e){if(e>this.maxArrayLength)throw new Error("Max length exceeded: array length ("+e+") > maxArrayLength ("+this.maxArrayLength+")");this.stack.push({type:_.ARRAY,size:e,array:new Array(e),position:0})},e.prototype.decodeUtf8String=function(e,t){if(e>this.maxStrLength)throw new Error("Max length exceeded: UTF-8 byte length ("+e+") > maxStrLength ("+this.maxStrLength+")");if(this.bytes.byteLength<this.pos+t+e)throw H;var r,n=this.pos+t;return r=o&&e>200?function(e,t,r){var n=e.subarray(t,t+r);return c.decode(n)}(this.bytes,n,e):E&&e>1024?T(this.bytes,n,e):function(e,t,r){for(var n=t,o=n+r,s=[],a="";n<o;){var u=e[n++];if(0==(128&u))s.push(u);else if(192==(224&u)){var c=63&e[n++];s.push((31&u)<<6|c)}else if(224==(240&u)){c=63&e[n++];var f=63&e[n++];s.push((31&u)<<12|c<<6|f)}else if(240==(248&u)){var l=(7&u)<<18|(c=63&e[n++])<<12|(f=63&e[n++])<<6|63&e[n++];l>65535&&(l-=65536,s.push(l>>>10&1023|55296),l=56320|1023&l),s.push(l)}else s.push(u);s.length-4>=h&&(a+=String.fromCharCode.apply(String,i(s)),s.length=0)}return s.length>0&&(a+=String.fromCharCode.apply(String,i(s))),a}(this.bytes,n,e),this.pos+=t+e,r},e.prototype.decodeBinary=function(e,t){if(e>this.maxBinLength)throw new Error("Max length exceeded: bin length ("+e+") > maxBinLength ("+this.maxBinLength+")");if(!this.hasRemaining(e+t))throw H;var r=this.pos+t,n=this.bytes.subarray(r,r+e);return this.pos+=t+e,n},e.prototype.decodeExtension=function(e,t){if(e>this.maxExtLength)throw new Error("Max length exceeded: ext length ("+e+") > maxExtLength ("+this.maxExtLength+")");var r=this.view.getInt8(this.pos+t),n=this.decodeBinary(e,t+1);return this.extensionCodec.decode(n,r)},e.prototype.lookU8=function(){return this.view.getUint8(this.pos)},e.prototype.lookU16=function(){return this.view.getUint16(this.pos)},e.prototype.lookU32=function(){return this.view.getUint32(this.pos)},e.prototype.readU8=function(){var e=this.view.getUint8(this.pos);return this.pos++,e},e.prototype.readI8=function(){var e=this.view.getInt8(this.pos);return this.pos++,e},e.prototype.readU16=function(){var e=this.view.getUint16(this.pos);return this.pos+=2,e},e.prototype.readI16=function(){var e=this.view.getInt16(this.pos);return this.pos+=2,e},e.prototype.readU32=function(){var e=this.view.getUint32(this.pos);return this.pos+=4,e},e.prototype.readI32=function(){var e=this.view.getInt32(this.pos);return this.pos+=4,e},e.prototype.readU64=function(){var e,t,r=(e=this.view,t=this.pos,4294967296*e.getUint32(t)+e.getUint32(t+4));return this.pos+=8,r},e.prototype.readI64=function(){var e=p(this.view,this.pos);return this.pos+=8,e},e.prototype.readF32=function(){var e=this.view.getFloat32(this.pos);return this.pos+=4,e},e.prototype.readF64=function(){var e=this.view.getFloat64(this.pos);return this.pos+=8,e},e}(),q={};function J(e,t){void 0===t&&(t=q);var r=new X(t.extensionCodec,t.maxStrLength,t.maxBinLength,t.maxArrayLength,t.maxMapLength,t.maxExtLength);return r.setBuffer(e),r.decodeOneSync()}var Q=function(e,t){var r,n,i,o,s={label:0,sent:function(){if(1&i[0])throw i[1];return i[1]},trys:[],ops:[]};return o={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(o[Symbol.iterator]=function(){return this}),o;function a(o){return function(a){return function(o){if(r)throw new TypeError("Generator is already executing.");for(;s;)try{if(r=1,n&&(i=2&o[0]?n.return:o[0]?n.throw||((i=n.return)&&i.call(n),0):n.next)&&!(i=i.call(n,o[1])).done)return i;switch(n=0,i&&(o=[2&o[0],i.value]),o[0]){case 0:case 1:i=o;break;case 4:return s.label++,{value:o[1],done:!1};case 5:s.label++,n=o[1],o=[0];continue;case 7:o=s.ops.pop(),s.trys.pop();continue;default:if(!(i=(i=s.trys).length>0&&i[i.length-1])&&(6===o[0]||2===o[0])){s=0;continue}if(3===o[0]&&(!i||o[1]>i[0]&&o[1]<i[3])){s.label=o[1];break}if(6===o[0]&&s.label<i[1]){s.label=i[1],i=o;break}if(i&&s.label<i[2]){s.label=i[2],s.ops.push(o);break}i[2]&&s.ops.pop(),s.trys.pop();continue}o=t.call(e,s)}catch(e){o=[6,e],n=0}finally{r=i=0}if(5&o[0])throw o[1];return{value:o[0]?o[1]:void 0,done:!0}}([o,a])}}},Z=function(e){return this instanceof Z?(this.v=e,this):new Z(e)},$=function(e,t,r){if(!Symbol.asyncIterator)throw new TypeError("Symbol.asyncIterator is not defined.");var n,i=r.apply(e,t||[]),o=[];return n={},s("next"),s("throw"),s("return"),n[Symbol.asyncIterator]=function(){return this},n;function s(e){i[e]&&(n[e]=function(t){return new Promise(function(r,n){o.push([e,t,r,n])>1||a(e,t)})})}function a(e,t){try{(r=i[e](t)).value instanceof Z?Promise.resolve(r.value.v).then(u,h):c(o[0][2],r)}catch(e){c(o[0][3],e)}var r}function u(e){a("next",e)}function h(e){a("throw",e)}function c(e,t){e(t),o.shift(),o.length&&a(o[0][0],o[0][1])}};function ee(e){return null!=e[Symbol.asyncIterator]?e:function(e){return $(this,arguments,function(){var t,r,n,i;return Q(this,function(o){switch(o.label){case 0:t=e.getReader(),o.label=1;case 1:o.trys.push([1,,9,10]),o.label=2;case 2:return[4,Z(t.read())];case 3:return r=o.sent(),n=r.done,i=r.value,n?[4,Z(void 0)]:[3,5];case 4:return[2,o.sent()];case 5:return[4,Z(i)];case 6:return[4,o.sent()];case 7:return o.sent(),[3,2];case 8:return[3,10];case 9:return t.releaseLock(),[7];case 10:return[2]}})})}(e)}var te=function(e,t,r,n){return new(r||(r=Promise))(function(i,o){function s(e){try{u(n.next(e))}catch(e){o(e)}}function a(e){try{u(n.throw(e))}catch(e){o(e)}}function u(e){e.done?i(e.value):new r(function(t){t(e.value)}).then(s,a)}u((n=n.apply(e,t||[])).next())})},re=function(e,t){var r,n,i,o,s={label:0,sent:function(){if(1&i[0])throw i[1];return i[1]},trys:[],ops:[]};return o={next:a(0),throw:a(1),return:a(2)},"function"==typeof Symbol&&(o[Symbol.iterator]=function(){return this}),o;function a(o){return function(a){return function(o){if(r)throw new TypeError("Generator is already executing.");for(;s;)try{if(r=1,n&&(i=2&o[0]?n.return:o[0]?n.throw||((i=n.return)&&i.call(n),0):n.next)&&!(i=i.call(n,o[1])).done)return i;switch(n=0,i&&(o=[2&o[0],i.value]),o[0]){case 0:case 1:i=o;break;case 4:return s.label++,{value:o[1],done:!1};case 5:s.label++,n=o[1],o=[0];continue;case 7:o=s.ops.pop(),s.trys.pop();continue;default:if(!(i=(i=s.trys).length>0&&i[i.length-1])&&(6===o[0]||2===o[0])){s=0;continue}if(3===o[0]&&(!i||o[1]>i[0]&&o[1]<i[3])){s.label=o[1];break}if(6===o[0]&&s.label<i[1]){s.label=i[1],i=o;break}if(i&&s.label<i[2]){s.label=i[2],s.ops.push(o);break}i[2]&&s.ops.pop(),s.trys.pop();continue}o=t.call(e,s)}catch(e){o=[6,e],n=0}finally{r=i=0}if(5&o[0])throw o[1];return{value:o[0]?o[1]:void 0,done:!0}}([o,a])}}};function ne(e,t){return void 0===t&&(t=q),te(this,void 0,void 0,function(){var r;return re(this,function(n){return r=ee(e),[2,new X(t.extensionCodec,t.maxStrLength,t.maxBinLength,t.maxArrayLength,t.maxMapLength,t.maxExtLength).decodeOneAsync(r)]})})}function ie(e,t){void 0===t&&(t=q);var r=ee(e);return new X(t.extensionCodec,t.maxStrLength,t.maxBinLength,t.maxArrayLength,t.maxMapLength,t.maxExtLength).decodeArrayStream(r)}function oe(e,t){void 0===t&&(t=q);var r=ee(e);return new X(t.extensionCodec,t.maxStrLength,t.maxBinLength,t.maxArrayLength,t.maxMapLength,t.maxExtLength).decodeStream(r)}r.d(t,"encode",function(){return C}),r.d(t,"decode",function(){return J}),r.d(t,"decodeAsync",function(){return ne}),r.d(t,"decodeArrayStream",function(){return ie}),r.d(t,"decodeStream",function(){return oe}),r.d(t,"Decoder",function(){return X}),r.d(t,"Encoder",function(){return P}),r.d(t,"ExtensionCodec",function(){return x}),r.d(t,"ExtData",function(){return f}),r.d(t,"EXT_TIMESTAMP",function(){return-1}),r.d(t,"encodeDateToTimeSpec",function(){return v}),r.d(t,"encodeTimeSpecToTimestamp",function(){return w}),r.d(t,"decodeTimestampToTimeSpec",function(){return g}),r.d(t,"encodeTimestampExtension",function(){return b}),r.d(t,"decodeTimestampExtension",function(){return U}),r.d(t,"__WASM_AVAILABLE",function(){return E})}])});
 //# sourceMappingURL=msgpack.min.js.map

dist/encode.d.ts

@@ -7,2 +7,8 @@ import { ExtensionCodecType } from "./ExtensionCodec";
     sortKeys: boolean;
+    /**
+     * If `true`, non-integer numbers are encoded in float32, not in float64 (the default).
+     *
+     * Only use it if precisions don't matter.
+     */
+    forceFloat32: boolean;
 }>>;
@@ -9,0 +15,0 @@ /**

dist/encode.js

@@ -12,3 +12,3 @@ "use strict";
 function encode(value, options = defaultEncodeOptions) {
-    const encoder = new Encoder_1.Encoder(options.extensionCodec, options.maxDepth, options.initialBufferSize, options.sortKeys);
+    const encoder = new Encoder_1.Encoder(options.extensionCodec, options.maxDepth, options.initialBufferSize, options.sortKeys, options.forceFloat32);
     encoder.encode(value, 1);
@@ -15,0 +15,0 @@ return encoder.getUint8Array();

dist/Encoder.d.ts

@@ -9,6 +9,7 @@ import { ExtData } from "./ExtData";
     readonly sortKeys: boolean;
+    readonly forceFloat32: boolean;
     private pos;
     private view;
     private bytes;
-    constructor(extensionCodec?: import("./ExtensionCodec").ExtensionCodecType, maxDepth?: number, initialBufferSize?: number, sortKeys?: boolean);
+    constructor(extensionCodec?: import("./ExtensionCodec").ExtensionCodecType, maxDepth?: number, initialBufferSize?: number, sortKeys?: boolean, forceFloat32?: boolean);
     encode(object: unknown, depth: number): void;
@@ -35,2 +36,3 @@ getUint8Array(): Uint8Array;
     writeI32(value: number): void;
+    writeF32(value: number): void;
     writeF64(value: number): void;
@@ -37,0 +39,0 @@ writeU64(value: number): void;

dist/Encoder.js

@@ -11,3 +11,3 @@ "use strict";
 class Encoder {
-    constructor(extensionCodec = ExtensionCodec_1.ExtensionCodec.defaultCodec, maxDepth = exports.DEFAULT_MAX_DEPTH, initialBufferSize = exports.DEFAULT_INITIAL_BUFFER_SIZE, sortKeys = false) {
+    constructor(extensionCodec = ExtensionCodec_1.ExtensionCodec.defaultCodec, maxDepth = exports.DEFAULT_MAX_DEPTH, initialBufferSize = exports.DEFAULT_INITIAL_BUFFER_SIZE, sortKeys = false, forceFloat32 = false) {
         this.extensionCodec = extensionCodec;
@@ -17,2 +17,3 @@ this.maxDepth = maxDepth;
         this.sortKeys = sortKeys;
+        this.forceFloat32 = forceFloat32;
         this.pos = 0;
@@ -126,4 +127,13 @@ this.view = new DataView(new ArrayBuffer(this.initialBufferSize));
         else {
-            this.writeU8(0xcb);
-            this.writeF64(object);
+            // non-integer numbers
+            if (this.forceFloat32) {
+                // float 32
+                this.writeU8(0xca);
+                this.writeF32(object);
+            }
+            else {
+                // float 64
+                this.writeU8(0xcb);
+                this.writeF64(object);
+            }
         }
@@ -356,2 +366,7 @@ }
     }
+    writeF32(value) {
+        this.ensureBufferSizeToWrite(4);
+        this.view.setFloat32(this.pos, value);
+        this.pos += 4;
+    }
     writeF64(value) {
@@ -358,0 +373,0 @@ this.ensureBufferSizeToWrite(8);

package.json

 {
   "name": "@msgpack/msgpack",
-  "version": "1.5.0",
+  "version": "1.6.0",
   "description": "MessagePack for JavaScript/ECMA-262",
@@ -5,0 +5,0 @@ "author": "The MessagePack community",

README.md

@@ -117,2 +117,3 @@ # MessagePack for JavaScript/ECMA-262
 sortKeys | boolean | false
+forceFloat32 | boolean | false
 
@@ -119,0 +120,0 @@ ### `decode(buffer: ArrayLike<number> | ArrayBuffer, options?: DecodeOptions): unknown`

src/encode.ts

@@ -10,2 +10,9 @@ import { ExtensionCodecType } from "./ExtensionCodec";
     sortKeys: boolean;
+
+    /**
+     * If `true`, non-integer numbers are encoded in float32, not in float64 (the default).
+     *
+     * Only use it if precisions don't matter.
+     */
+    forceFloat32: boolean;
   }>
@@ -23,5 +30,11 @@ >;
 export function encode(value: unknown, options: EncodeOptions = defaultEncodeOptions): Uint8Array {
-  const encoder = new Encoder(options.extensionCodec, options.maxDepth, options.initialBufferSize, options.sortKeys);
+  const encoder = new Encoder(
+    options.extensionCodec,
+    options.maxDepth,
+    options.initialBufferSize,
+    options.sortKeys,
+    options.forceFloat32,
+  );
   encoder.encode(value, 1);
   return encoder.getUint8Array();
 }

src/Encoder.ts

@@ -21,2 +21,3 @@ import { utf8EncodeJs, utf8Count, TEXT_ENCODING_AVAILABLE, TEXT_ENCODER_THRESHOLD, utf8EncodeTE } from "./utils/utf8";
     readonly sortKeys = false,
+    readonly forceFloat32 = false,
   ) {}
@@ -122,4 +123,12 @@
     } else {
-      this.writeU8(0xcb);
-      this.writeF64(object);
+      // non-integer numbers
+      if (this.forceFloat32) {
+        // float 32
+        this.writeU8(0xca);
+        this.writeF32(object);
+      } else {
+        // float 64
+        this.writeU8(0xcb);
+        this.writeF64(object);
+      }
     }
@@ -350,5 +359,10 @@ }
 
+  writeF32(value: number) {
+    this.ensureBufferSizeToWrite(4);
+    this.view.setFloat32(this.pos, value);
+    this.pos += 4;
+  }
+
   writeF64(value: number) {
     this.ensureBufferSizeToWrite(8);
-
     this.view.setFloat64(this.pos, value);
@@ -355,0 +369,0 @@ this.pos += 8;

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Improved metrics

Total package byte prevSize

742550

increased by0.87%

Lines of code

7362

increased by1.13%

Number of lines in readme file

496

increased by0.2%

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