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@glimmer/validator - npm Package Compare versions

Comparing version 0.44.0 to 0.45.0

dist/commonjs/es2017/lib/debug.d.ts.map

880

dist/amd/es5/glimmer-validator.js

@@ -1,359 +0,587 @@

define('@glimmer/validator', ['exports'], function (exports) { 'use strict';
define('@glimmer/validator', ['exports', '@glimmer/env'], function (exports, env) { 'use strict';
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
// This is a duplicate utility from @glimmer/util because `@glimmer/validator`
// should not depend on any other @glimmer packages, in order to avoid pulling
// in types and prevent regressions in `@glimmer/tracking` (which has public types).
var symbol = typeof Symbol !== 'undefined' ? Symbol : function (key) {
return '__' + key + Math.floor(Math.random() * Date.now()) + '__';
};
var symbol = typeof Symbol !== 'undefined' ? Symbol : function (key) {
return '__' + key + Math.floor(Math.random() * Date.now()) + '__';
};
var CONSTANT = 0;
var INITIAL = 1;
var VOLATILE = 9007199254740991; // MAX_INT
var $REVISION = INITIAL;
function bump() {
$REVISION++;
}
//////////
var COMPUTE = symbol('TAG_COMPUTE');
//////////
/**
* `value` receives a tag and returns an opaque Revision based on that tag. This
* snapshot can then later be passed to `validate` with the same tag to
* determine if the tag has changed at all since the time that `value` was
* called.
*
* The current implementation returns the global revision count directly for
* performance reasons. This is an implementation detail, and should not be
* relied on directly by users of these APIs. Instead, Revisions should be
* treated as if they are opaque/unknown, and should only be interacted with via
* the `value`/`validate` API.
*
* @param tag
*/
function value(_tag) {
return $REVISION;
}
/**
* `validate` receives a tag and a snapshot from a previous call to `value` with
* the same tag, and determines if the tag is still valid compared to the
* snapshot. If the tag's state has changed at all since then, `validate` will
* return false, otherwise it will return true. This is used to determine if a
* calculation related to the tags should be rerun.
*
* @param tag
* @param snapshot
*/
function validate(tag, snapshot) {
return snapshot >= tag[COMPUTE]();
}
var TYPE = symbol('TAG_TYPE');
var ALLOW_CYCLES = void 0;
exports.runInAutotrackingTransaction = void 0;
exports.deprecateMutationsInAutotrackingTransaction = void 0;
exports.setAutotrackingTransactionEnv = void 0;
var assertTagNotConsumed = void 0;
var _markTagAsConsumed = void 0;
if (env.DEBUG) {
var DEPRECATE_IN_AUTOTRACKING_TRANSACTION = false;
var AUTOTRACKING_TRANSACTION = null;
var debuggingContexts = [];
/////////
var TRANSACTION_ENV = {
assert: function assert(message) {
throw new Error(message);
},
deprecate: function deprecate(message) {
console.warn(message);
},
debugMessage: function debugMessage(obj, keyName) {
var objName = void 0;
if (typeof obj === 'function') {
objName = obj.name;
} else if (typeof obj === 'object' && obj !== null) {
var className = obj.constructor && obj.constructor.name || '(unknown class)';
objName = '(an instance of ' + className + ')';
} else if (obj === undefined) {
objName = '(an unknown tag)';
} else {
objName = String(obj);
}
var dirtyString = keyName ? '`' + keyName + '` on `' + objName + '`' : '`' + objName + '`';
return 'You attempted to update ' + dirtyString + ', but it had already been used previously in the same computation. Attempting to update a value after using it in a computation can cause logical errors, infinite revalidation bugs, and performance issues, and is not supported.';
}
};
exports.setAutotrackingTransactionEnv = function setAutotrackingTransactionEnv(env$$1) {
return Object.assign(TRANSACTION_ENV, env$$1);
};
/**
* Creates a global autotracking transaction. This will prevent any backflow
* in any `track` calls within the transaction, even if they are not
* externally consumed.
*
* `runInAutotrackingTransaction` can be called within itself, and it will add
* onto the existing transaction if one exists.
*
* TODO: Only throw an error if the `track` is consumed.
*/
exports.runInAutotrackingTransaction = function runInAutotrackingTransaction(fn, debuggingContext) {
var previousDeprecateState = DEPRECATE_IN_AUTOTRACKING_TRANSACTION;
var previousTransactionState = AUTOTRACKING_TRANSACTION;
DEPRECATE_IN_AUTOTRACKING_TRANSACTION = false;
if (previousTransactionState === null) {
// if there was no transaction start it. Otherwise, the transaction already exists.
AUTOTRACKING_TRANSACTION = new WeakMap();
}
if (debuggingContext) {
debuggingContexts.unshift(debuggingContext);
}
try {
fn();
} finally {
if (debuggingContext) {
debuggingContexts.shift();
}
DEPRECATE_IN_AUTOTRACKING_TRANSACTION = previousDeprecateState;
AUTOTRACKING_TRANSACTION = previousTransactionState;
}
};
/**
* Switches to deprecating within an autotracking transaction, if one exists.
* If `runInAutotrackingTransaction` is called within the callback of this
* method, it switches back to throwing an error, allowing zebra-striping of
* the types of errors that are thrown.
*
* Does not start an autotracking transaction.
*
* NOTE: For Ember usage only, in general you should assert that these
* invariants are true.
*/
exports.deprecateMutationsInAutotrackingTransaction = function deprecateMutationsInAutotrackingTransaction(fn) {
var previousDeprecateState = DEPRECATE_IN_AUTOTRACKING_TRANSACTION;
DEPRECATE_IN_AUTOTRACKING_TRANSACTION = true;
try {
fn();
} finally {
DEPRECATE_IN_AUTOTRACKING_TRANSACTION = previousDeprecateState;
}
};
var nthIndex = function nthIndex(str, pattern, n) {
var startingPos = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : -1;
var MonomorphicTagImpl = function () {
function MonomorphicTagImpl(type) {
_classCallCheck(this, MonomorphicTagImpl);
var i = startingPos;
while (n-- > 0 && i++ < str.length) {
i = str.indexOf(pattern, i);
if (i < 0) break;
}
return i;
};
var makeAutotrackingErrorMessage = function makeAutotrackingErrorMessage(sourceData, obj, keyName) {
var message = [TRANSACTION_ENV.debugMessage(obj, keyName && String(keyName))];
if (sourceData.context) {
message.push('`' + String(keyName) + '` was first used:\n\n' + sourceData.context);
}
if (sourceData.error.stack) {
var sourceStack = sourceData.error.stack;
var thirdIndex = nthIndex(sourceStack, '\n', 3);
sourceStack = sourceStack.substr(thirdIndex);
message.push('Stack trace for the first usage: ' + sourceStack);
}
message.push('Stack trace for the update:');
return message.join('\n\n');
};
_markTagAsConsumed = function markTagAsConsumed(_tag, sourceError) {
if (!AUTOTRACKING_TRANSACTION || AUTOTRACKING_TRANSACTION.has(_tag)) return;
AUTOTRACKING_TRANSACTION.set(_tag, {
context: debuggingContexts.map(function (c) {
return c.replace(/^/gm, ' ').replace(/^ /, '-');
}).join('\n\n'),
error: sourceError
});
// We need to mark the tag and all of its subtags as consumed, so we need to
// cast it and access its internals. In the future this shouldn't be necessary,
// this is only for computed properties.
var tag = _tag;
if (tag.subtag) {
_markTagAsConsumed(tag.subtag, sourceError);
}
if (tag.subtags) {
tag.subtags.forEach(function (tag) {
return _markTagAsConsumed(tag, sourceError);
});
}
};
assertTagNotConsumed = function assertTagNotConsumed(tag, obj, keyName) {
var forceHardError = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
this.revision = INITIAL;
this.lastChecked = INITIAL;
this.lastValue = INITIAL;
this.isUpdating = false;
this.subtag = null;
this.subtags = null;
this[TYPE] = type;
}
if (AUTOTRACKING_TRANSACTION === null) return;
var sourceData = AUTOTRACKING_TRANSACTION.get(tag);
if (!sourceData) return;
if (DEPRECATE_IN_AUTOTRACKING_TRANSACTION && !forceHardError) {
TRANSACTION_ENV.deprecate(makeAutotrackingErrorMessage(sourceData, obj, keyName));
} else {
// This hack makes the assertion message nicer, we can cut off the first
// few lines of the stack trace and let users know where the actual error
// occurred.
try {
TRANSACTION_ENV.assert(makeAutotrackingErrorMessage(sourceData, obj, keyName));
} catch (e) {
if (e.stack) {
var updateStackBegin = e.stack.indexOf('Stack trace for the update:');
if (updateStackBegin !== -1) {
var start = nthIndex(e.stack, '\n', 1, updateStackBegin);
var end = nthIndex(e.stack, '\n', 4, updateStackBegin);
e.stack = e.stack.substr(0, start) + e.stack.substr(end);
}
}
throw e;
}
}
};
}
MonomorphicTagImpl.prototype[COMPUTE] = function () {
var lastChecked = this.lastChecked;
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var CONSTANT = 0;
var INITIAL = 1;
var VOLATILE = 9007199254740991; // MAX_INT
var $REVISION = INITIAL;
function bump() {
$REVISION++;
}
//////////
var COMPUTE = symbol('TAG_COMPUTE');
//////////
/**
* `value` receives a tag and returns an opaque Revision based on that tag. This
* snapshot can then later be passed to `validate` with the same tag to
* determine if the tag has changed at all since the time that `value` was
* called.
*
* The current implementation returns the global revision count directly for
* performance reasons. This is an implementation detail, and should not be
* relied on directly by users of these APIs. Instead, Revisions should be
* treated as if they are opaque/unknown, and should only be interacted with via
* the `value`/`validate` API.
*
* @param tag
*/
function value(tag) {
if (env.DEBUG) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
return $REVISION;
}
/**
* `validate` receives a tag and a snapshot from a previous call to `value` with
* the same tag, and determines if the tag is still valid compared to the
* snapshot. If the tag's state has changed at all since then, `validate` will
* return false, otherwise it will return true. This is used to determine if a
* calculation related to the tags should be rerun.
*
* @param tag
* @param snapshot
*/
function validate(tag, snapshot) {
if (env.DEBUG) {
IS_VALIDATING = true;
}
var isValid = snapshot >= tag[COMPUTE]();
if (env.DEBUG) {
IS_VALIDATING = false;
if (isValid) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
}
return isValid;
}
var IS_VALIDATING = void 0;
var TYPE = symbol('TAG_TYPE');
exports.ALLOW_CYCLES = void 0;
if (env.DEBUG) {
exports.ALLOW_CYCLES = new WeakMap();
}
if (lastChecked !== $REVISION) {
this.isUpdating = true;
this.lastChecked = $REVISION;
try {
var subtags = this.subtags,
subtag = this.subtag,
revision = this.revision;
var MonomorphicTagImpl = function () {
function MonomorphicTagImpl(type) {
_classCallCheck(this, MonomorphicTagImpl);
if (subtag !== null) {
revision = Math.max(revision, subtag[COMPUTE]());
}
if (subtags !== null) {
for (var i = 0; i < subtags.length; i++) {
var _value = subtags[i][COMPUTE]();
revision = Math.max(_value, revision);
}
}
this.lastValue = revision;
} finally {
this.isUpdating = false;
}
}
if (this.isUpdating === true) {
this.lastChecked = ++$REVISION;
}
return this.lastValue;
};
this.revision = INITIAL;
this.lastChecked = INITIAL;
this.lastValue = INITIAL;
this.isUpdating = false;
this.subtag = null;
this.subtags = null;
this[TYPE] = type;
}
MonomorphicTagImpl.update = function update(_tag, subtag) {
// TODO: TS 3.7 should allow us to do this via assertion
var tag = _tag;
if (subtag === CONSTANT_TAG) {
tag.subtag = null;
} else {
tag.subtag = subtag;
// subtag could be another type of tag, e.g. CURRENT_TAG or VOLATILE_TAG.
// If so, lastChecked/lastValue will be undefined, result in these being
// NaN. This is fine, it will force the system to recompute.
tag.lastChecked = Math.min(tag.lastChecked, subtag.lastChecked);
tag.lastValue = Math.max(tag.lastValue, subtag.lastValue);
}
};
MonomorphicTagImpl.prototype[COMPUTE] = function () {
var lastChecked = this.lastChecked;
MonomorphicTagImpl.dirty = function dirty(tag) {
tag.revision = ++$REVISION;
};
if (this.isUpdating === true) {
if (env.DEBUG && !exports.ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
} else if (lastChecked !== $REVISION) {
this.isUpdating = true;
if (env.DEBUG) {
// In DEBUG, we don't cache while validating only, because it is valid
// update a tag between calling `validate()` and `value()`. Once you
// call `value()` on a tag, its revision is effectively locked in, and
// if you attempt to update it to a tag that is more recent it could
// break assumptions in our system. This is why the assertion exists in
// the static `update()` method below.
if (!IS_VALIDATING) {
this.lastChecked = $REVISION;
}
} else {
this.lastChecked = $REVISION;
}
try {
var subtags = this.subtags,
subtag = this.subtag,
revision = this.revision;
return MonomorphicTagImpl;
}();
if (subtag !== null) {
revision = Math.max(revision, subtag[COMPUTE]());
}
if (subtags !== null) {
for (var i = 0; i < subtags.length; i++) {
var _value = subtags[i][COMPUTE]();
revision = Math.max(_value, revision);
}
}
this.lastValue = revision;
} finally {
this.isUpdating = false;
}
}
return this.lastValue;
};
var dirty = MonomorphicTagImpl.dirty;
var update = MonomorphicTagImpl.update;
//////////
function createTag() {
return new MonomorphicTagImpl(0 /* Dirtyable */);
}
function createUpdatableTag() {
return new MonomorphicTagImpl(1 /* Updatable */);
}
//////////
var CONSTANT_TAG = new MonomorphicTagImpl(3 /* Constant */);
function isConst(_ref) {
var tag = _ref.tag;
MonomorphicTagImpl.update = function update(_tag, subtag) {
if (env.DEBUG && _tag[TYPE] !== 1 /* Updatable */) {
throw new Error('Attempted to update a tag that was not updatable');
}
// TODO: TS 3.7 should allow us to do this via assertion
var tag = _tag;
if (subtag === CONSTANT_TAG) {
tag.subtag = null;
} else {
if (env.DEBUG && tag.lastChecked === $REVISION && subtag[COMPUTE]() > tag.lastValue) {
throw new Error('BUG: attempted to update a tag with a tag that has a more recent revision as its value');
}
tag.subtag = subtag;
}
};
return tag === CONSTANT_TAG;
}
function isConstTag(tag) {
return tag === CONSTANT_TAG;
}
//////////
MonomorphicTagImpl.dirty = function dirty(tag) {
if (env.DEBUG && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
throw new Error('Attempted to dirty a tag that was not dirtyable');
}
if (env.DEBUG) {
// Usually by this point, we've already asserted with better error information,
// but this is our last line of defense.
assertTagNotConsumed(tag);
}
tag.revision = ++$REVISION;
};
var VolatileTag = function () {
function VolatileTag() {
_classCallCheck(this, VolatileTag);
}
return MonomorphicTagImpl;
}();
VolatileTag.prototype[COMPUTE] = function () {
return VOLATILE;
};
var dirty = MonomorphicTagImpl.dirty;
var update = MonomorphicTagImpl.update;
//////////
function createTag() {
return new MonomorphicTagImpl(0 /* Dirtyable */);
}
function createUpdatableTag() {
return new MonomorphicTagImpl(1 /* Updatable */);
}
//////////
var CONSTANT_TAG = new MonomorphicTagImpl(3 /* Constant */);
function isConst(_ref) {
var tag = _ref.tag;
return VolatileTag;
}();
return tag === CONSTANT_TAG;
}
function isConstTag(tag) {
return tag === CONSTANT_TAG;
}
//////////
var VOLATILE_TAG = new VolatileTag();
//////////
var VolatileTag = function () {
function VolatileTag() {
_classCallCheck(this, VolatileTag);
}
var CurrentTag = function () {
function CurrentTag() {
_classCallCheck(this, CurrentTag);
}
VolatileTag.prototype[COMPUTE] = function () {
return VOLATILE;
};
CurrentTag.prototype[COMPUTE] = function () {
return $REVISION;
};
return VolatileTag;
}();
return CurrentTag;
}();
var VOLATILE_TAG = new VolatileTag();
//////////
var CURRENT_TAG = new CurrentTag();
//////////
function combine(tags) {
var optimized = [];
for (var i = 0, l = tags.length; i < l; i++) {
var tag = tags[i];
if (tag === CONSTANT_TAG) continue;
optimized.push(tag);
}
return createCombinatorTag(optimized);
}
function createCombinatorTag(tags) {
switch (tags.length) {
case 0:
return CONSTANT_TAG;
case 1:
return tags[0];
default:
var tag = new MonomorphicTagImpl(2 /* Combinator */);
tag.subtags = tags;
return tag;
}
}
var CurrentTag = function () {
function CurrentTag() {
_classCallCheck(this, CurrentTag);
}
var TRACKED_TAGS = new WeakMap();
function isObject(u) {
return typeof u === 'object' && u !== null;
}
function dirtyTag(obj, key) {
if (isObject(obj)) {
var tag = tagFor(obj, key);
if (tag === undefined) {
updateTag(obj, key, createUpdatableTag());
} else if (isConstTag(tag)) {
throw new Error('BUG: Can\'t update a constant tag');
} else {
dirty(tag);
}
} else {
throw new Error('BUG: Can\'t update a tag for a primitive');
}
}
function tagFor(obj, key) {
if (isObject(obj)) {
var tags = TRACKED_TAGS.get(obj);
if (tags === undefined) {
tags = new Map();
TRACKED_TAGS.set(obj, tags);
} else if (tags.has(key)) {
return tags.get(key);
}
var tag = createUpdatableTag();
tags.set(key, tag);
return tag;
} else {
return CONSTANT_TAG;
}
}
function updateTag(obj, key, newTag) {
if (isObject(obj)) {
var tag = tagFor(obj, key);
if (isConstTag(tag)) {
throw new Error('BUG: Can\'t update a constant tag');
} else {
update(tag, newTag);
}
return tag;
} else {
throw new Error('BUG: Can\'t update a tag for a primitive');
}
}
CurrentTag.prototype[COMPUTE] = function () {
return $REVISION;
};
function _classCallCheck$1(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
* Whenever a tracked computed property is entered, the current tracker is
* saved off and a new tracker is replaced.
*
* Any tracked properties consumed are added to the current tracker.
*
* When a tracked computed property is exited, the tracker's tags are
* combined and added to the parent tracker.
*
* The consequence is that each tracked computed property has a tag
* that corresponds to the tracked properties consumed inside of
* itself, including child tracked computed properties.
*/
var CURRENT_TRACKER = null;
/**
* An object that that tracks @tracked properties that were consumed.
*/
return CurrentTag;
}();
var Tracker = function () {
function Tracker() {
_classCallCheck$1(this, Tracker);
var CURRENT_TAG = new CurrentTag();
//////////
function combine(tags) {
var optimized = [];
for (var i = 0, l = tags.length; i < l; i++) {
var tag = tags[i];
if (tag === CONSTANT_TAG) continue;
optimized.push(tag);
}
return createCombinatorTag(optimized);
}
function createCombinatorTag(tags) {
switch (tags.length) {
case 0:
return CONSTANT_TAG;
case 1:
return tags[0];
default:
var tag = new MonomorphicTagImpl(2 /* Combinator */);
tag.subtags = tags;
return tag;
}
}
this.tags = new Set();
this.last = null;
}
var propertyDidChange = function propertyDidChange() {};
function setPropertyDidChange(cb) {
propertyDidChange = cb;
}
function isObject(u) {
return typeof u === 'object' && u !== null || typeof u === 'function';
}
var TRACKED_TAGS = new WeakMap();
function dirtyTagFor(obj, key) {
if (isObject(obj)) {
var tags = TRACKED_TAGS.get(obj);
// No tags have been setup for this object yet, return
if (tags === undefined) return;
// Dirty the tag for the specific property if it exists
var propertyTag = tags.get(key);
if (propertyTag !== undefined) {
if (env.DEBUG) {
assertTagNotConsumed(propertyTag, obj, key);
}
dirty(propertyTag);
propertyDidChange();
}
} else {
throw new Error('BUG: Can\'t update a tag for a primitive');
}
}
function tagFor(obj, key) {
if (isObject(obj)) {
var tags = TRACKED_TAGS.get(obj);
if (tags === undefined) {
tags = new Map();
TRACKED_TAGS.set(obj, tags);
} else if (tags.has(key)) {
return tags.get(key);
}
var tag = createUpdatableTag();
tags.set(key, tag);
return tag;
} else {
return CONSTANT_TAG;
}
}
Tracker.prototype.add = function add(tag) {
this.tags.add(tag);
this.last = tag;
};
function _classCallCheck$1(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
* Whenever a tracked computed property is entered, the current tracker is
* saved off and a new tracker is replaced.
*
* Any tracked properties consumed are added to the current tracker.
*
* When a tracked computed property is exited, the tracker's tags are
* combined and added to the parent tracker.
*
* The consequence is that each tracked computed property has a tag
* that corresponds to the tracked properties consumed inside of
* itself, including child tracked computed properties.
*/
var CURRENT_TRACKER = null;
/**
* An object that that tracks @tracked properties that were consumed.
*/
Tracker.prototype.combine = function combine$$1() {
var tags = this.tags;
var Tracker = function () {
function Tracker() {
_classCallCheck$1(this, Tracker);
if (tags.size === 0) {
return CONSTANT_TAG;
} else if (tags.size === 1) {
return this.last;
} else {
var tagsArr = [];
tags.forEach(function (tag) {
return tagsArr.push(tag);
});
return combine(tagsArr);
}
};
this.tags = new Set();
this.last = null;
}
return Tracker;
}();
Tracker.prototype.add = function add(tag) {
this.tags.add(tag);
if (env.DEBUG) {
_markTagAsConsumed(tag, new Error());
}
this.last = tag;
};
function track(callback) {
var parent = CURRENT_TRACKER;
var current = new Tracker();
CURRENT_TRACKER = current;
try {
callback();
} finally {
CURRENT_TRACKER = parent;
}
return current.combine();
}
function consume(tag) {
if (CURRENT_TRACKER !== null) {
CURRENT_TRACKER.add(tag);
}
}
//////////
var EPOCH = createTag();
function trackedData(key, initializer) {
var values = new WeakMap();
var hasInitializer = typeof initializer === 'function';
function getter(self) {
consume(tagFor(self, key));
var value$$1 = void 0;
// If the field has never been initialized, we should initialize it
if (hasInitializer && !values.has(self)) {
value$$1 = initializer();
values.set(self, value$$1);
} else {
value$$1 = values.get(self);
}
return value$$1;
}
function setter(self, value$$1) {
dirty(EPOCH);
dirtyTag(self, key);
values.set(self, value$$1);
}
return { getter: getter, setter: setter };
}
Tracker.prototype.combine = function combine$$1() {
var tags = this.tags;
exports.ALLOW_CYCLES = ALLOW_CYCLES;
exports.bump = bump;
exports.combine = combine;
exports.COMPUTE = COMPUTE;
exports.CONSTANT_TAG = CONSTANT_TAG;
exports.CONSTANT = CONSTANT;
exports.createCombinatorTag = createCombinatorTag;
exports.createTag = createTag;
exports.createUpdatableTag = createUpdatableTag;
exports.CURRENT_TAG = CURRENT_TAG;
exports.dirty = dirty;
exports.INITIAL = INITIAL;
exports.isConst = isConst;
exports.isConstTag = isConstTag;
exports.update = update;
exports.validate = validate;
exports.value = value;
exports.VOLATILE_TAG = VOLATILE_TAG;
exports.VOLATILE = VOLATILE;
exports.dirtyTag = dirtyTag;
exports.tagFor = tagFor;
exports.updateTag = updateTag;
exports.track = track;
exports.consume = consume;
exports.EPOCH = EPOCH;
exports.trackedData = trackedData;
if (tags.size === 0) {
return CONSTANT_TAG;
} else if (tags.size === 1) {
return this.last;
} else {
var tagsArr = [];
tags.forEach(function (tag) {
return tagsArr.push(tag);
});
return combine(tagsArr);
}
};
Object.defineProperty(exports, '__esModule', { value: true });
return Tracker;
}();
//////////
function track(callback, debuggingContext) {
var parent = CURRENT_TRACKER;
var current = new Tracker();
CURRENT_TRACKER = current;
try {
if (env.DEBUG) {
exports.runInAutotrackingTransaction(callback, debuggingContext);
} else {
callback();
}
} finally {
CURRENT_TRACKER = parent;
}
return current.combine();
}
function consume(tag) {
if (CURRENT_TRACKER !== null) {
CURRENT_TRACKER.add(tag);
}
}
function isTracking() {
return CURRENT_TRACKER !== null;
}
function untrack(callback) {
var parent = CURRENT_TRACKER;
CURRENT_TRACKER = null;
try {
callback();
} finally {
CURRENT_TRACKER = parent;
}
}
//////////
var EPOCH = createTag();
function trackedData(key, initializer) {
var values = new WeakMap();
var hasInitializer = typeof initializer === 'function';
function getter(self) {
consume(tagFor(self, key));
var value$$1 = void 0;
// If the field has never been initialized, we should initialize it
if (hasInitializer && !values.has(self)) {
value$$1 = initializer();
values.set(self, value$$1);
} else {
value$$1 = values.get(self);
}
return value$$1;
}
function setter(self, value$$1) {
if (env.DEBUG) {
assertTagNotConsumed(tagFor(self, key), self, key, true);
}
dirty(EPOCH);
dirtyTagFor(self, key);
values.set(self, value$$1);
}
return { getter: getter, setter: setter };
}
exports.bump = bump;
exports.combine = combine;
exports.COMPUTE = COMPUTE;
exports.CONSTANT_TAG = CONSTANT_TAG;
exports.CONSTANT = CONSTANT;
exports.createCombinatorTag = createCombinatorTag;
exports.createTag = createTag;
exports.createUpdatableTag = createUpdatableTag;
exports.CURRENT_TAG = CURRENT_TAG;
exports.dirty = dirty;
exports.INITIAL = INITIAL;
exports.isConst = isConst;
exports.isConstTag = isConstTag;
exports.update = update;
exports.validate = validate;
exports.value = value;
exports.VOLATILE_TAG = VOLATILE_TAG;
exports.VOLATILE = VOLATILE;
exports.dirtyTagFor = dirtyTagFor;
exports.tagFor = tagFor;
exports.setPropertyDidChange = setPropertyDidChange;
exports.consume = consume;
exports.EPOCH = EPOCH;
exports.isTracking = isTracking;
exports.track = track;
exports.trackedData = trackedData;
exports.untrack = untrack;
Object.defineProperty(exports, '__esModule', { value: true });
});
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"glimmer-validator.js","sources":["../../../../../../packages/@glimmer/validator/lib/validators.ts","../../../../../../packages/@glimmer/validator/lib/meta.ts","../../../../../../packages/@glimmer/validator/lib/tracking.ts"],"sourcesContent":["import { DEBUG } from '@glimmer/local-debug-flags';\n\n//////////\n\n// utils\ntype UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends ((\n  k: infer I\n) => void)\n  ? I\n  : never;\n\nconst symbol =\n  typeof Symbol !== 'undefined'\n    ? Symbol\n    : (key: string) => `__${key}${Math.floor(Math.random() * Date.now())}__` as any;\n\n//////////\n\nexport type Revision = number;\n\nexport const CONSTANT: Revision = 0;\nexport const INITIAL: Revision = 1;\nexport const VOLATILE: Revision = 9007199254740991; // MAX_INT\n\nlet $REVISION = INITIAL;\n\nexport function bump() {\n  $REVISION++;\n}\n\n//////////\n\nexport const COMPUTE: unique symbol = symbol('TAG_COMPUTE');\n\nexport interface EntityTag<T> {\n  [COMPUTE](): T;\n}\n\nexport interface Tag extends EntityTag<Revision> {}\n\nexport interface EntityTagged<T> {\n  tag: EntityTag<T>;\n}\n\nexport interface Tagged {\n  tag: Tag;\n}\n\n//////////\n\n/**\n * `value` receives a tag and returns an opaque Revision based on that tag. This\n * snapshot can then later be passed to `validate` with the same tag to\n * determine if the tag has changed at all since the time that `value` was\n * called.\n *\n * The current implementation returns the global revision count directly for\n * performance reasons. This is an implementation detail, and should not be\n * relied on directly by users of these APIs. Instead, Revisions should be\n * treated as if they are opaque/unknown, and should only be interacted with via\n * the `value`/`validate` API.\n *\n * @param tag\n */\nexport function value(_tag: Tag): Revision {\n  return $REVISION;\n}\n\n/**\n * `validate` receives a tag and a snapshot from a previous call to `value` with\n * the same tag, and determines if the tag is still valid compared to the\n * snapshot. If the tag's state has changed at all since then, `validate` will\n * return false, otherwise it will return true. This is used to determine if a\n * calculation related to the tags should be rerun.\n *\n * @param tag\n * @param snapshot\n */\nexport function validate(tag: Tag, snapshot: Revision) {\n  return snapshot >= tag[COMPUTE]();\n}\n\n//////////\n\n/**\n * This enum represents all of the possible tag types for the monomorphic tag class.\n * Other custom tag classes can exist, such as CurrentTag and VolatileTag, but for\n * performance reasons, any type of tag that is meant to be used frequently should\n * be added to the monomorphic tag.\n */\nconst enum MonomorphicTagTypes {\n  Dirtyable,\n  Updatable,\n  Combinator,\n  Constant,\n}\n\nconst TYPE: unique symbol = symbol('TAG_TYPE');\n\nexport let ALLOW_CYCLES: WeakSet<UpdatableTag>;\n\nif (DEBUG) {\n  ALLOW_CYCLES = new WeakSet();\n}\n\ninterface MonomorphicTagBase<T extends MonomorphicTagTypes> extends Tag {\n  [TYPE]: T;\n}\n\nexport interface DirtyableTag extends MonomorphicTagBase<MonomorphicTagTypes.Dirtyable> {}\nexport interface UpdatableTag extends MonomorphicTagBase<MonomorphicTagTypes.Updatable> {}\nexport interface CombinatorTag extends MonomorphicTagBase<MonomorphicTagTypes.Combinator> {}\nexport interface ConstantTag extends MonomorphicTagBase<MonomorphicTagTypes.Constant> {}\n\ninterface MonomorphicTagMapping {\n  [MonomorphicTagTypes.Dirtyable]: DirtyableTag;\n  [MonomorphicTagTypes.Updatable]: UpdatableTag;\n  [MonomorphicTagTypes.Combinator]: CombinatorTag;\n  [MonomorphicTagTypes.Constant]: ConstantTag;\n}\n\ntype MonomorphicTag = UnionToIntersection<MonomorphicTagMapping[MonomorphicTagTypes]>;\ntype MonomorphicTagType = UnionToIntersection<MonomorphicTagTypes>;\n\nclass MonomorphicTagImpl implements MonomorphicTag {\n  private revision = INITIAL;\n  private lastChecked = INITIAL;\n  private lastValue = INITIAL;\n\n  private isUpdating = false;\n  private subtag: Tag | null = null;\n  private subtags: Tag[] | null = null;\n\n  [TYPE]: MonomorphicTagType;\n\n  constructor(type: MonomorphicTagTypes) {\n    this[TYPE] = type as MonomorphicTagType;\n  }\n\n  [COMPUTE](): Revision {\n    let { lastChecked } = this;\n\n    if (lastChecked !== $REVISION) {\n      this.isUpdating = true;\n      this.lastChecked = $REVISION;\n\n      try {\n        let { subtags, subtag, revision } = this;\n\n        if (subtag !== null) {\n          revision = Math.max(revision, subtag[COMPUTE]());\n        }\n\n        if (subtags !== null) {\n          for (let i = 0; i < subtags.length; i++) {\n            let value = subtags[i][COMPUTE]();\n            revision = Math.max(value, revision);\n          }\n        }\n\n        this.lastValue = revision;\n      } finally {\n        this.isUpdating = false;\n      }\n    }\n\n    if (this.isUpdating === true) {\n      if (DEBUG && !ALLOW_CYCLES.has(this)) {\n        throw new Error('Cycles in tags are not allowed');\n      }\n\n      this.lastChecked = ++$REVISION;\n    }\n\n    return this.lastValue;\n  }\n\n  static update(_tag: UpdatableTag, subtag: Tag) {\n    if (DEBUG && _tag[TYPE] !== MonomorphicTagTypes.Updatable) {\n      throw new Error('Attempted to update a tag that was not updatable');\n    }\n\n    // TODO: TS 3.7 should allow us to do this via assertion\n    let tag = _tag as MonomorphicTagImpl;\n\n    if (subtag === CONSTANT_TAG) {\n      tag.subtag = null;\n    } else {\n      tag.subtag = subtag;\n\n      // subtag could be another type of tag, e.g. CURRENT_TAG or VOLATILE_TAG.\n      // If so, lastChecked/lastValue will be undefined, result in these being\n      // NaN. This is fine, it will force the system to recompute.\n      tag.lastChecked = Math.min(tag.lastChecked, (subtag as any).lastChecked);\n      tag.lastValue = Math.max(tag.lastValue, (subtag as any).lastValue);\n    }\n  }\n\n  static dirty(tag: DirtyableTag | UpdatableTag) {\n    if (\n      DEBUG &&\n      !(tag[TYPE] === MonomorphicTagTypes.Updatable || tag[TYPE] === MonomorphicTagTypes.Dirtyable)\n    ) {\n      throw new Error('Attempted to dirty a tag that was not dirtyable');\n    }\n\n    (tag as MonomorphicTagImpl).revision = ++$REVISION;\n  }\n}\n\nexport const dirty = MonomorphicTagImpl.dirty;\nexport const update = MonomorphicTagImpl.update;\n\n//////////\n\nexport function createTag(): DirtyableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Dirtyable);\n}\n\nexport function createUpdatableTag(): UpdatableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Updatable);\n}\n\n//////////\n\nexport const CONSTANT_TAG = new MonomorphicTagImpl(MonomorphicTagTypes.Constant) as ConstantTag;\n\nexport function isConst({ tag }: Tagged): boolean {\n  return tag === CONSTANT_TAG;\n}\n\nexport function isConstTag(tag: Tag): tag is ConstantTag {\n  return tag === CONSTANT_TAG;\n}\n\n//////////\n\nclass VolatileTag implements Tag {\n  [COMPUTE]() {\n    return VOLATILE;\n  }\n}\n\nexport const VOLATILE_TAG = new VolatileTag();\n\n//////////\n\nclass CurrentTag implements CurrentTag {\n  [COMPUTE]() {\n    return $REVISION;\n  }\n}\n\nexport const CURRENT_TAG = new CurrentTag();\n\n//////////\n\nexport function combine(tags: Tag[]): Tag {\n  let optimized: Tag[] = [];\n\n  for (let i = 0, l = tags.length; i < l; i++) {\n    let tag = tags[i];\n    if (tag === CONSTANT_TAG) continue;\n    optimized.push(tag);\n  }\n\n  return createCombinatorTag(optimized);\n}\n\nexport function createCombinatorTag(tags: Tag[]): Tag {\n  switch (tags.length) {\n    case 0:\n      return CONSTANT_TAG;\n    case 1:\n      return tags[0];\n    default:\n      let tag = new MonomorphicTagImpl(MonomorphicTagTypes.Combinator) as CombinatorTag;\n      (tag as any).subtags = tags;\n      return tag;\n  }\n}\n","import {\n  dirty,\n  update,\n  createUpdatableTag,\n  UpdatableTag,\n  CONSTANT_TAG,\n  isConstTag,\n  ConstantTag,\n} from './validators';\n\ntype Tags = Map<PropertyKey, UpdatableTag>;\nconst TRACKED_TAGS = new WeakMap<object, Tags>();\n\nfunction isObject<T>(u: T): u is object & T {\n  return typeof u === 'object' && u !== null;\n}\n\nexport function dirtyTag<T>(obj: T, key: keyof T): void {\n  if (isObject(obj)) {\n    let tag = tagFor(obj, key);\n\n    if (tag === undefined) {\n      updateTag(obj, key, createUpdatableTag());\n    } else if (isConstTag(tag)) {\n      throw new Error(`BUG: Can't update a constant tag`);\n    } else {\n      dirty(tag);\n    }\n  } else {\n    throw new Error(`BUG: Can't update a tag for a primitive`);\n  }\n}\n\nexport function tagFor<T extends object>(obj: T, key: keyof T): UpdatableTag;\nexport function tagFor<T>(obj: T, key: string): ConstantTag;\nexport function tagFor<T>(obj: T, key: keyof T): UpdatableTag | ConstantTag {\n  if (isObject(obj)) {\n    let tags = TRACKED_TAGS.get(obj);\n\n    if (tags === undefined) {\n      tags = new Map();\n      TRACKED_TAGS.set(obj, tags);\n    } else if (tags.has(key)) {\n      return tags.get(key)!;\n    }\n\n    let tag = createUpdatableTag();\n    tags.set(key, tag);\n    return tag;\n  } else {\n    return CONSTANT_TAG;\n  }\n}\n\nexport function updateTag<T>(obj: T, key: keyof T, newTag: UpdatableTag): UpdatableTag {\n  if (isObject(obj)) {\n    let tag = tagFor(obj, key);\n\n    if (isConstTag(tag)) {\n      throw new Error(`BUG: Can't update a constant tag`);\n    } else {\n      update(tag, newTag);\n    }\n\n    return tag;\n  } else {\n    throw new Error(`BUG: Can't update a tag for a primitive`);\n  }\n}\n","import { Tag, combine, CONSTANT_TAG } from './validators';\nimport { createTag, dirty } from './validators';\nimport { tagFor, dirtyTag } from './meta';\n\ntype Option<T> = T | null;\n\n/**\n * Whenever a tracked computed property is entered, the current tracker is\n * saved off and a new tracker is replaced.\n *\n * Any tracked properties consumed are added to the current tracker.\n *\n * When a tracked computed property is exited, the tracker's tags are\n * combined and added to the parent tracker.\n *\n * The consequence is that each tracked computed property has a tag\n * that corresponds to the tracked properties consumed inside of\n * itself, including child tracked computed properties.\n */\nlet CURRENT_TRACKER: Option<Tracker> = null;\n\n/**\n * An object that that tracks @tracked properties that were consumed.\n */\nclass Tracker {\n  private tags = new Set<Tag>();\n  private last: Option<Tag> = null;\n\n  add(tag: Tag) {\n    this.tags.add(tag);\n    this.last = tag;\n  }\n\n  combine(): Tag {\n    let { tags } = this;\n\n    if (tags.size === 0) {\n      return CONSTANT_TAG;\n    } else if (tags.size === 1) {\n      return this.last as Tag;\n    } else {\n      let tagsArr: Tag[] = [];\n      tags.forEach(tag => tagsArr.push(tag));\n      return combine(tagsArr);\n    }\n  }\n}\n\nexport function track(callback: () => void): Tag {\n  let parent = CURRENT_TRACKER;\n  let current = new Tracker();\n\n  CURRENT_TRACKER = current;\n\n  try {\n    callback();\n  } finally {\n    CURRENT_TRACKER = parent;\n  }\n\n  return current.combine();\n}\n\nexport function consume(tag: Tag) {\n  if (CURRENT_TRACKER !== null) {\n    CURRENT_TRACKER.add(tag);\n  }\n}\n\n//////////\n\nexport const EPOCH = createTag();\n\nexport type Getter<T, K extends keyof T> = (self: T) => T[K] | undefined;\nexport type Setter<T, K extends keyof T> = (self: T, value: T[K]) => void;\n\nexport function trackedData<T extends object, K extends keyof T>(\n  key: K,\n  initializer?: () => T[K]\n): { getter: Getter<T, K>; setter: Setter<T, K> } {\n  let values = new WeakMap<T, T[K]>();\n  let hasInitializer = typeof initializer === 'function';\n\n  function getter(self: T) {\n    consume(tagFor(self, key));\n\n    let value;\n\n    // If the field has never been initialized, we should initialize it\n    if (hasInitializer && !values.has(self)) {\n      value = initializer!();\n      values.set(self, value);\n    } else {\n      value = values.get(self);\n    }\n\n    return value;\n  }\n\n  function setter(self: T, value: T[K]): void {\n    dirty(EPOCH);\n    dirtyTag(self, key);\n    values.set(self, value);\n  }\n\n  return { getter, setter 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//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"glimmer-validator.js","sources":["../../../../../../packages/@glimmer/validator/lib/utils.ts","../../../../../../packages/@glimmer/validator/lib/debug.ts","../../../../../../packages/@glimmer/validator/lib/validators.ts","../../../../../../packages/@glimmer/validator/lib/meta.ts","../../../../../../packages/@glimmer/validator/lib/tracking.ts"],"sourcesContent":["export type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends ((\n  k: infer I\n) => void)\n  ? I\n  : never;\n\n// This is a duplicate utility from @glimmer/util because `@glimmer/validator`\n// should not depend on any other @glimmer packages, in order to avoid pulling\n// in types and prevent regressions in `@glimmer/tracking` (which has public types).\nexport const symbol =\n  typeof Symbol !== 'undefined'\n    ? 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Attempting to update a value after using it in a computation can cause logical errors, infinite revalidation bugs, and performance issues, and is not supported.`;\n    },\n  };\n\n  setAutotrackingTransactionEnv = env => Object.assign(TRANSACTION_ENV, env);\n\n  /**\n   * Creates a global autotracking transaction. This will prevent any backflow\n   * in any `track` calls within the transaction, even if they are not\n   * externally consumed.\n   *\n   * `runInAutotrackingTransaction` can be called within itself, and it will add\n   * onto the existing transaction if one exists.\n   *\n   * TODO: Only throw an error if the `track` is consumed.\n   */\n  runInAutotrackingTransaction = (fn: () => void, debuggingContext?: string | false) => {\n    let previousDeprecateState = DEPRECATE_IN_AUTOTRACKING_TRANSACTION;\n    let previousTransactionState = AUTOTRACKING_TRANSACTION;\n\n    DEPRECATE_IN_AUTOTRACKING_TRANSACTION = false;\n\n    if (previousTransactionState === null) {\n      // if there was no transaction start it. 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This\n * snapshot can then later be passed to `validate` with the same tag to\n * determine if the tag has changed at all since the time that `value` was\n * called.\n *\n * The current implementation returns the global revision count directly for\n * performance reasons. This is an implementation detail, and should not be\n * relied on directly by users of these APIs. Instead, Revisions should be\n * treated as if they are opaque/unknown, and should only be interacted with via\n * the `value`/`validate` API.\n *\n * @param tag\n */\nexport function value(tag: Tag): Revision {\n  if (DEBUG) {\n    // compute to cache the latest value, which will prevent us from doing\n    // invalid updates later on.\n    tag[COMPUTE]();\n  }\n\n  return $REVISION;\n}\n\n/**\n * `validate` receives a tag and a snapshot from a previous call to `value` with\n * the same tag, and determines if the tag is still valid compared to the\n * snapshot. If the tag's state has changed at all since then, `validate` will\n * return false, otherwise it will return true. This is used to determine if a\n * calculation related to the tags should be rerun.\n *\n * @param tag\n * @param snapshot\n */\nexport function validate(tag: Tag, snapshot: Revision) {\n  if (DEBUG) {\n    IS_VALIDATING = true;\n  }\n\n  let isValid = snapshot >= tag[COMPUTE]();\n\n  if (DEBUG) {\n    IS_VALIDATING = false;\n\n    if (isValid) {\n      // compute to cache the latest value, which will prevent us from doing\n      // invalid updates later on.\n      tag[COMPUTE]();\n    }\n  }\n\n  return isValid;\n}\n\nlet IS_VALIDATING: boolean | undefined;\n\n//////////\n\n/**\n * This enum represents all of the possible tag types for the monomorphic tag class.\n * Other custom tag classes can exist, such as CurrentTag and VolatileTag, but for\n * performance reasons, any type of tag that is meant to be used frequently should\n * be added to the monomorphic tag.\n */\nconst enum MonomorphicTagTypes {\n  Dirtyable,\n  Updatable,\n  Combinator,\n  Constant,\n}\n\nconst TYPE: unique symbol = symbol('TAG_TYPE');\n\nexport let ALLOW_CYCLES: WeakMap<Tag, boolean> | undefined;\n\nif (DEBUG) {\n  ALLOW_CYCLES = new WeakMap();\n}\n\ninterface MonomorphicTagBase<T extends MonomorphicTagTypes> extends Tag {\n  [TYPE]: T;\n}\n\nexport interface DirtyableTag extends MonomorphicTagBase<MonomorphicTagTypes.Dirtyable> {}\nexport interface UpdatableTag extends MonomorphicTagBase<MonomorphicTagTypes.Updatable> {}\nexport interface CombinatorTag extends MonomorphicTagBase<MonomorphicTagTypes.Combinator> {}\nexport interface ConstantTag extends MonomorphicTagBase<MonomorphicTagTypes.Constant> {}\n\ninterface MonomorphicTagMapping {\n  [MonomorphicTagTypes.Dirtyable]: DirtyableTag;\n  [MonomorphicTagTypes.Updatable]: UpdatableTag;\n  [MonomorphicTagTypes.Combinator]: CombinatorTag;\n  [MonomorphicTagTypes.Constant]: ConstantTag;\n}\n\ntype MonomorphicTag = UnionToIntersection<MonomorphicTagMapping[MonomorphicTagTypes]>;\ntype MonomorphicTagType = UnionToIntersection<MonomorphicTagTypes>;\n\nclass MonomorphicTagImpl implements MonomorphicTag {\n  private revision = INITIAL;\n  private lastChecked = INITIAL;\n  private lastValue = INITIAL;\n\n  private isUpdating = false;\n  private subtag: Tag | null = null;\n  private subtags: Tag[] | null = null;\n\n  [TYPE]: MonomorphicTagType;\n\n  constructor(type: MonomorphicTagTypes) {\n    this[TYPE] = type as MonomorphicTagType;\n  }\n\n  [COMPUTE](): Revision {\n    let { lastChecked } = this;\n\n    if (this.isUpdating === true) {\n      if (DEBUG && !ALLOW_CYCLES!.has(this)) {\n        throw new Error('Cycles in tags are not allowed');\n      }\n\n      this.lastChecked = ++$REVISION;\n    } else if (lastChecked !== $REVISION) {\n      this.isUpdating = true;\n\n      if (DEBUG) {\n        // In DEBUG, we don't cache while validating only, because it is valid\n        // update a tag between calling `validate()` and `value()`. Once you\n        // call `value()` on a tag, its revision is effectively locked in, and\n        // if you attempt to update it to a tag that is more recent it could\n        // break assumptions in our system. This is why the assertion exists in\n        // the static `update()` method below.\n        if (!IS_VALIDATING) {\n          this.lastChecked = $REVISION;\n        }\n      } else {\n        this.lastChecked = $REVISION;\n      }\n\n      try {\n        let { subtags, subtag, revision } = this;\n\n        if (subtag !== null) {\n          revision = Math.max(revision, subtag[COMPUTE]());\n        }\n\n        if (subtags !== null) {\n          for (let i = 0; i < subtags.length; i++) {\n            let value = subtags[i][COMPUTE]();\n            revision = Math.max(value, revision);\n          }\n        }\n\n        this.lastValue = revision;\n      } finally {\n        this.isUpdating = false;\n      }\n    }\n\n    return this.lastValue;\n  }\n\n  static update(_tag: UpdatableTag, subtag: Tag) {\n    if (DEBUG && _tag[TYPE] !== MonomorphicTagTypes.Updatable) {\n      throw new Error('Attempted to update a tag that was not updatable');\n    }\n\n    // TODO: TS 3.7 should allow us to do this via assertion\n    let tag = _tag as MonomorphicTagImpl;\n\n    if (subtag === CONSTANT_TAG) {\n      tag.subtag = null;\n    } else {\n      if (\n        DEBUG &&\n        tag.lastChecked === $REVISION &&\n        (subtag as MonomorphicTagImpl)[COMPUTE]() > tag.lastValue\n      ) {\n        throw new Error(\n          'BUG: attempted to update a tag with a tag that has a more recent revision as its value'\n        );\n      }\n\n      tag.subtag = subtag;\n    }\n  }\n\n  static dirty(tag: DirtyableTag | UpdatableTag) {\n    if (\n      DEBUG &&\n      !(tag[TYPE] === MonomorphicTagTypes.Updatable || tag[TYPE] === MonomorphicTagTypes.Dirtyable)\n    ) {\n      throw new Error('Attempted to dirty a tag that was not dirtyable');\n    }\n\n    if (DEBUG) {\n      // Usually by this point, we've already asserted with better error information,\n      // but this is our last line of defense.\n      assertTagNotConsumed!(tag);\n    }\n\n    (tag as MonomorphicTagImpl).revision = ++$REVISION;\n  }\n}\n\nexport const dirty = MonomorphicTagImpl.dirty;\nexport const update = MonomorphicTagImpl.update;\n\n//////////\n\nexport function createTag(): DirtyableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Dirtyable);\n}\n\nexport function createUpdatableTag(): UpdatableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Updatable);\n}\n\n//////////\n\nexport const CONSTANT_TAG = new MonomorphicTagImpl(MonomorphicTagTypes.Constant) as ConstantTag;\n\nexport function isConst({ tag }: Tagged): boolean {\n  return tag === CONSTANT_TAG;\n}\n\nexport function isConstTag(tag: Tag): tag is ConstantTag {\n  return tag === CONSTANT_TAG;\n}\n\n//////////\n\nclass VolatileTag implements Tag {\n  [COMPUTE]() {\n    return VOLATILE;\n  }\n}\n\nexport const VOLATILE_TAG = new VolatileTag();\n\n//////////\n\nclass CurrentTag implements CurrentTag {\n  [COMPUTE]() {\n    return $REVISION;\n  }\n}\n\nexport const CURRENT_TAG = new CurrentTag();\n\n//////////\n\nexport function combine(tags: Tag[]): Tag {\n  let optimized: Tag[] = [];\n\n  for (let i = 0, l = tags.length; i < l; i++) {\n    let tag = tags[i];\n    if (tag === CONSTANT_TAG) continue;\n    optimized.push(tag);\n  }\n\n  return createCombinatorTag(optimized);\n}\n\nexport function createCombinatorTag(tags: Tag[]): Tag {\n  switch (tags.length) {\n    case 0:\n      return CONSTANT_TAG;\n    case 1:\n      return tags[0];\n    default:\n      let tag = new MonomorphicTagImpl(MonomorphicTagTypes.Combinator) as CombinatorTag;\n      (tag as any).subtags = tags;\n      return tag;\n  }\n}\n","import { DEBUG } from '@glimmer/env';\nimport { dirty, createUpdatableTag, UpdatableTag, CONSTANT_TAG, ConstantTag } from './validators';\nimport { assertTagNotConsumed } from './debug';\n\nexport let propertyDidChange = function() {};\n\nexport function setPropertyDidChange(cb: () => void) {\n  propertyDidChange = cb;\n}\n\nfunction isObject<T>(u: T): u is object 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undefined) {\n      tags = new Map();\n\n      TRACKED_TAGS.set(obj, tags);\n    } else if (tags.has(key)) {\n      return tags.get(key)!;\n    }\n\n    let tag = createUpdatableTag();\n    tags.set(key, tag);\n\n    return tag;\n  } else {\n    return CONSTANT_TAG;\n  }\n}\n","import { DEBUG } from '@glimmer/env';\nimport { Tag, combine, createTag, dirty, CONSTANT_TAG } from './validators';\nimport { tagFor, dirtyTagFor } from './meta';\nimport { markTagAsConsumed, runInAutotrackingTransaction, assertTagNotConsumed } from './debug';\n\ntype Option<T> = T | null;\n\n/**\n * Whenever a tracked computed property is entered, the current tracker is\n * saved off and a new tracker is replaced.\n *\n * Any tracked properties consumed are added to the current tracker.\n *\n * When a tracked computed property is exited, the tracker's tags are\n * combined and added to the parent tracker.\n *\n * The consequence is that each tracked computed property has a tag\n * that corresponds to the tracked properties consumed inside of\n * itself, including child tracked computed properties.\n */\nlet CURRENT_TRACKER: Option<Tracker> = null;\n\n/**\n * An object that that tracks @tracked properties that were consumed.\n */\nclass Tracker {\n  private tags = new Set<Tag>();\n  private last: Option<Tag> = null;\n\n  add(tag: Tag) {\n    this.tags.add(tag);\n\n    if (DEBUG) {\n      markTagAsConsumed!(tag, new Error());\n    }\n\n    this.last = tag;\n  }\n\n  combine(): Tag {\n    let { tags } = this;\n\n    if (tags.size === 0) {\n      return CONSTANT_TAG;\n    } else if (tags.size === 1) {\n      return this.last as Tag;\n    } else {\n      let tagsArr: Tag[] = [];\n      tags.forEach(tag => tagsArr.push(tag));\n      return combine(tagsArr);\n    }\n  }\n}\n\n//////////\n\nexport function track(callback: () => void, debuggingContext?: string | false): Tag {\n  let parent = CURRENT_TRACKER;\n  let current = new Tracker();\n\n  CURRENT_TRACKER = current;\n\n  try {\n    if (DEBUG) {\n      runInAutotrackingTransaction!(callback, debuggingContext);\n    } else {\n      callback();\n    }\n  } finally {\n    CURRENT_TRACKER = parent;\n  }\n\n  return current.combine();\n}\n\nexport function consume(tag: Tag) {\n  if (CURRENT_TRACKER !== null) {\n    CURRENT_TRACKER.add(tag);\n  }\n}\n\nexport function isTracking() {\n  return CURRENT_TRACKER !== null;\n}\n\nexport function untrack(callback: () => void) {\n  let parent = CURRENT_TRACKER;\n  CURRENT_TRACKER = null;\n\n  try {\n    callback();\n  } finally {\n    CURRENT_TRACKER = parent;\n  }\n}\n\n//////////\n\nexport const EPOCH = createTag();\n\nexport type Getter<T, K extends keyof T> = (self: T) => T[K] | undefined;\nexport type Setter<T, K extends keyof T> = (self: T, value: T[K]) => void;\n\nexport function trackedData<T extends object, K extends keyof T>(\n  key: K,\n  initializer?: () => T[K]\n): { getter: Getter<T, K>; setter: Setter<T, K> } {\n  let values = new WeakMap<T, T[K]>();\n  let 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@@ -126,6 +126,6 @@ 'use strict';

Object.defineProperty(exports, 'dirtyTag', {
Object.defineProperty(exports, 'dirtyTagFor', {
enumerable: true,
get: function () {
return _meta.dirtyTag;
return _meta.dirtyTagFor;
}

@@ -139,6 +139,6 @@ });

});
Object.defineProperty(exports, 'updateTag', {
Object.defineProperty(exports, 'setPropertyDidChange', {
enumerable: true,
get: function () {
return _meta.updateTag;
return _meta.setPropertyDidChange;
}

@@ -149,8 +149,2 @@ });

Object.defineProperty(exports, 'track', {
enumerable: true,
get: function () {
return _tracking.track;
}
});
Object.defineProperty(exports, 'consume', {

@@ -168,2 +162,14 @@ enumerable: true,

});
Object.defineProperty(exports, 'isTracking', {
enumerable: true,
get: function () {
return _tracking.isTracking;
}
});
Object.defineProperty(exports, 'track', {
enumerable: true,
get: function () {
return _tracking.track;
}
});
Object.defineProperty(exports, 'trackedData', {

@@ -175,2 +181,29 @@ enumerable: true,

});
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Object.defineProperty(exports, 'untrack', {
enumerable: true,
get: function () {
return _tracking.untrack;
}
});
var _debug = require('./lib/debug');
Object.defineProperty(exports, 'setAutotrackingTransactionEnv', {
enumerable: true,
get: function () {
return _debug.setAutotrackingTransactionEnv;
}
});
Object.defineProperty(exports, 'runInAutotrackingTransaction', {
enumerable: true,
get: function () {
return _debug.runInAutotrackingTransaction;
}
});
Object.defineProperty(exports, 'deprecateMutationsInAutotrackingTransaction', {
enumerable: true,
get: function () {
return _debug.deprecateMutationsInAutotrackingTransaction;
}
});
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@@ -6,21 +6,34 @@ 'use strict';

});
exports.dirtyTag = dirtyTag;
exports.propertyDidChange = undefined;
exports.setPropertyDidChange = setPropertyDidChange;
exports.dirtyTagFor = dirtyTagFor;
exports.tagFor = tagFor;
exports.updateTag = updateTag;
var _env = require('@glimmer/env');
var _validators = require('./validators');
const TRACKED_TAGS = new WeakMap();
var _debug = require('./debug');
let propertyDidChange = exports.propertyDidChange = function () {};
function setPropertyDidChange(cb) {
exports.propertyDidChange = propertyDidChange = cb;
}
function isObject(u) {
return typeof u === 'object' && u !== null;
return typeof u === 'object' && u !== null || typeof u === 'function';
}
function dirtyTag(obj, key) {
const TRACKED_TAGS = new WeakMap();
function dirtyTagFor(obj, key) {
if (isObject(obj)) {
let tag = tagFor(obj, key);
if (tag === undefined) {
updateTag(obj, key, (0, _validators.createUpdatableTag)());
} else if ((0, _validators.isConstTag)(tag)) {
throw new Error(`BUG: Can't update a constant tag`);
} else {
(0, _validators.dirty)(tag);
let tags = TRACKED_TAGS.get(obj);
// No tags have been setup for this object yet, return
if (tags === undefined) return;
// Dirty the tag for the specific property if it exists
let propertyTag = tags.get(key);
if (propertyTag !== undefined) {
if (_env.DEBUG) {
(0, _debug.assertTagNotConsumed)(propertyTag, obj, key);
}
(0, _validators.dirty)(propertyTag);
propertyDidChange();
}

@@ -47,15 +60,2 @@ } else {

}
function updateTag(obj, key, newTag) {
if (isObject(obj)) {
let tag = tagFor(obj, key);
if ((0, _validators.isConstTag)(tag)) {
throw new Error(`BUG: Can't update a constant tag`);
} else {
(0, _validators.update)(tag, newTag);
}
return tag;
} else {
throw new Error(`BUG: Can't update a tag for a primitive`);
}
}
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@@ -9,4 +9,8 @@ 'use strict';

exports.consume = consume;
exports.isTracking = isTracking;
exports.untrack = untrack;
exports.trackedData = trackedData;
var _env = require('@glimmer/env');
var _validators = require('./validators');

@@ -16,2 +20,4 @@

var _debug = require('./debug');
/**

@@ -41,2 +47,5 @@ * Whenever a tracked computed property is entered, the current tracker is

this.tags.add(tag);
if (_env.DEBUG) {
(0, _debug.markTagAsConsumed)(tag, new Error());
}
this.last = tag;

@@ -57,3 +66,4 @@ }

}
function track(callback) {
//////////
function track(callback, debuggingContext) {
let parent = CURRENT_TRACKER;

@@ -63,3 +73,7 @@ let current = new Tracker();

try {
callback();
if (_env.DEBUG) {
(0, _debug.runInAutotrackingTransaction)(callback, debuggingContext);
} else {
callback();
}
} finally {

@@ -75,2 +89,14 @@ CURRENT_TRACKER = parent;

}
function isTracking() {
return CURRENT_TRACKER !== null;
}
function untrack(callback) {
let parent = CURRENT_TRACKER;
CURRENT_TRACKER = null;
try {
callback();
} finally {
CURRENT_TRACKER = parent;
}
}
//////////

@@ -94,4 +120,7 @@ const EPOCH = exports.EPOCH = (0, _validators.createTag)();

function setter(self, value) {
if (_env.DEBUG) {
(0, _debug.assertTagNotConsumed)((0, _meta.tagFor)(self, key), self, key, true);
}
(0, _validators.dirty)(EPOCH);
(0, _meta.dirtyTag)(self, key);
(0, _meta.dirtyTagFor)(self, key);
values.set(self, value);

@@ -101,2 +130,2 @@ }

}
//# 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

@@ -6,2 +6,3 @@ 'use strict';

});
exports.CURRENT_TAG = exports.VOLATILE_TAG = exports.CONSTANT_TAG = exports.update = exports.dirty = exports.ALLOW_CYCLES = exports.COMPUTE = exports.VOLATILE = exports.INITIAL = exports.CONSTANT = undefined;
exports.bump = bump;

@@ -17,3 +18,8 @@ exports.value = value;

const symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;
var _env = require('@glimmer/env');
var _utils = require('./utils');
var _debug = require('./debug');
const CONSTANT = exports.CONSTANT = 0;

@@ -27,3 +33,3 @@ const INITIAL = exports.INITIAL = 1;

//////////
const COMPUTE = exports.COMPUTE = symbol('TAG_COMPUTE');
const COMPUTE = exports.COMPUTE = (0, _utils.symbol)('TAG_COMPUTE');
//////////

@@ -44,3 +50,8 @@ /**

*/
function value(_tag) {
function value(tag) {
if (_env.DEBUG) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
return $REVISION;

@@ -59,8 +70,21 @@ }

function validate(tag, snapshot) {
return snapshot >= tag[COMPUTE]();
if (_env.DEBUG) {
IS_VALIDATING = true;
}
let isValid = snapshot >= tag[COMPUTE]();
if (_env.DEBUG) {
IS_VALIDATING = false;
if (isValid) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
}
return isValid;
}
const TYPE = symbol('TAG_TYPE');
let IS_VALIDATING;
const TYPE = (0, _utils.symbol)('TAG_TYPE');
let ALLOW_CYCLES = exports.ALLOW_CYCLES = undefined;
if (false) {
exports.ALLOW_CYCLES = ALLOW_CYCLES = new WeakSet();
if (_env.DEBUG) {
exports.ALLOW_CYCLES = ALLOW_CYCLES = new WeakMap();
}

@@ -79,5 +103,22 @@ class MonomorphicTagImpl {

let { lastChecked } = this;
if (lastChecked !== $REVISION) {
if (this.isUpdating === true) {
if (_env.DEBUG && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
} else if (lastChecked !== $REVISION) {
this.isUpdating = true;
this.lastChecked = $REVISION;
if (_env.DEBUG) {
// In DEBUG, we don't cache while validating only, because it is valid
// update a tag between calling `validate()` and `value()`. Once you
// call `value()` on a tag, its revision is effectively locked in, and
// if you attempt to update it to a tag that is more recent it could
// break assumptions in our system. This is why the assertion exists in
// the static `update()` method below.
if (!IS_VALIDATING) {
this.lastChecked = $REVISION;
}
} else {
this.lastChecked = $REVISION;
}
try {

@@ -99,12 +140,6 @@ let { subtags, subtag, revision } = this;

}
if (this.isUpdating === true) {
if (false && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
}
return this.lastValue;
}
static update(_tag, subtag) {
if (false && _tag[TYPE] !== 1 /* Updatable */) {
if (_env.DEBUG && _tag[TYPE] !== 1 /* Updatable */) {
throw new Error('Attempted to update a tag that was not updatable');

@@ -117,14 +152,17 @@ }

} else {
if (_env.DEBUG && tag.lastChecked === $REVISION && subtag[COMPUTE]() > tag.lastValue) {
throw new Error('BUG: attempted to update a tag with a tag that has a more recent revision as its value');
}
tag.subtag = subtag;
// subtag could be another type of tag, e.g. CURRENT_TAG or VOLATILE_TAG.
// If so, lastChecked/lastValue will be undefined, result in these being
// NaN. This is fine, it will force the system to recompute.
tag.lastChecked = Math.min(tag.lastChecked, subtag.lastChecked);
tag.lastValue = Math.max(tag.lastValue, subtag.lastValue);
}
}
static dirty(tag) {
if (false && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
if (_env.DEBUG && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
throw new Error('Attempted to dirty a tag that was not dirtyable');
}
if (_env.DEBUG) {
// Usually by this point, we've already asserted with better error information,
// but this is our last line of defense.
(0, _debug.assertTagNotConsumed)(tag);
}
tag.revision = ++$REVISION;

@@ -186,2 +224,2 @@ }

}
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This\n * snapshot can then later be passed to `validate` with the same tag to\n * determine if the tag has changed at all since the time that `value` was\n * called.\n *\n * The current implementation returns the global revision count directly for\n * performance reasons. This is an implementation detail, and should not be\n * relied on directly by users of these APIs. Instead, Revisions should be\n * treated as if they are opaque/unknown, and should only be interacted with via\n * the `value`/`validate` API.\n *\n * @param tag\n */\nexport function value(tag: Tag): Revision {\n  if (DEBUG) {\n    // compute to cache the latest value, which will prevent us from doing\n    // invalid updates later on.\n    tag[COMPUTE]();\n  }\n\n  return $REVISION;\n}\n\n/**\n * `validate` receives a tag and a snapshot from a previous call to `value` with\n * the same tag, and determines if the tag is still valid compared to the\n * snapshot. If the tag's state has changed at all since then, `validate` will\n * return false, otherwise it will return true. This is used to determine if a\n * calculation related to the tags should be rerun.\n *\n * @param tag\n * @param snapshot\n */\nexport function validate(tag: Tag, snapshot: Revision) {\n  if (DEBUG) {\n    IS_VALIDATING = true;\n  }\n\n  let isValid = snapshot >= tag[COMPUTE]();\n\n  if (DEBUG) {\n    IS_VALIDATING = false;\n\n    if (isValid) {\n      // compute to cache the latest value, which will prevent us from doing\n      // invalid updates later on.\n      tag[COMPUTE]();\n    }\n  }\n\n  return isValid;\n}\n\nlet IS_VALIDATING: boolean | undefined;\n\n//////////\n\n/**\n * This enum represents all of the possible tag types for the monomorphic tag class.\n * Other custom tag classes can exist, such as CurrentTag and VolatileTag, but for\n * performance reasons, any type of tag that is meant to be used frequently should\n * be added to the monomorphic tag.\n */\nconst enum MonomorphicTagTypes {\n  Dirtyable,\n  Updatable,\n  Combinator,\n  Constant,\n}\n\nconst TYPE: unique symbol = symbol('TAG_TYPE');\n\nexport let ALLOW_CYCLES: WeakMap<Tag, boolean> | undefined;\n\nif (DEBUG) {\n  ALLOW_CYCLES = new WeakMap();\n}\n\ninterface MonomorphicTagBase<T extends MonomorphicTagTypes> extends Tag {\n  [TYPE]: T;\n}\n\nexport interface DirtyableTag extends MonomorphicTagBase<MonomorphicTagTypes.Dirtyable> {}\nexport interface UpdatableTag extends MonomorphicTagBase<MonomorphicTagTypes.Updatable> {}\nexport interface CombinatorTag extends MonomorphicTagBase<MonomorphicTagTypes.Combinator> {}\nexport interface ConstantTag extends MonomorphicTagBase<MonomorphicTagTypes.Constant> {}\n\ninterface MonomorphicTagMapping {\n  [MonomorphicTagTypes.Dirtyable]: DirtyableTag;\n  [MonomorphicTagTypes.Updatable]: UpdatableTag;\n  [MonomorphicTagTypes.Combinator]: CombinatorTag;\n  [MonomorphicTagTypes.Constant]: ConstantTag;\n}\n\ntype MonomorphicTag = UnionToIntersection<MonomorphicTagMapping[MonomorphicTagTypes]>;\ntype MonomorphicTagType = UnionToIntersection<MonomorphicTagTypes>;\n\nclass MonomorphicTagImpl implements MonomorphicTag {\n  private revision = INITIAL;\n  private lastChecked = INITIAL;\n  private lastValue = INITIAL;\n\n  private isUpdating = false;\n  private subtag: Tag | null = null;\n  private subtags: Tag[] | null = null;\n\n  [TYPE]: MonomorphicTagType;\n\n  constructor(type: MonomorphicTagTypes) {\n    this[TYPE] = type as MonomorphicTagType;\n  }\n\n  [COMPUTE](): Revision {\n    let { lastChecked } = this;\n\n    if (this.isUpdating === true) {\n      if (DEBUG && !ALLOW_CYCLES!.has(this)) {\n        throw new Error('Cycles in tags are not allowed');\n      }\n\n      this.lastChecked = ++$REVISION;\n    } else if (lastChecked !== $REVISION) {\n      this.isUpdating = true;\n\n      if (DEBUG) {\n        // In DEBUG, we don't cache while validating only, because it is valid\n        // update a tag between calling `validate()` and `value()`. Once you\n        // call `value()` on a tag, its revision is effectively locked in, and\n        // if you attempt to update it to a tag that is more recent it could\n        // break assumptions in our system. This is why the assertion exists in\n        // the static `update()` method below.\n        if (!IS_VALIDATING) {\n          this.lastChecked = $REVISION;\n        }\n      } else {\n        this.lastChecked = $REVISION;\n      }\n\n      try {\n        let { subtags, subtag, revision } = this;\n\n        if (subtag !== null) {\n          revision = Math.max(revision, subtag[COMPUTE]());\n        }\n\n        if (subtags !== null) {\n          for (let i = 0; i < subtags.length; i++) {\n            let value = subtags[i][COMPUTE]();\n            revision = Math.max(value, revision);\n          }\n        }\n\n        this.lastValue = revision;\n      } finally {\n        this.isUpdating = false;\n      }\n    }\n\n    return this.lastValue;\n  }\n\n  static update(_tag: UpdatableTag, subtag: Tag) {\n    if (DEBUG && _tag[TYPE] !== MonomorphicTagTypes.Updatable) {\n      throw new Error('Attempted to update a tag that was not updatable');\n    }\n\n    // TODO: TS 3.7 should allow us to do this via assertion\n    let tag = _tag as MonomorphicTagImpl;\n\n    if (subtag === CONSTANT_TAG) {\n      tag.subtag = null;\n    } else {\n      if (\n        DEBUG &&\n        tag.lastChecked === $REVISION &&\n        (subtag as MonomorphicTagImpl)[COMPUTE]() > tag.lastValue\n      ) {\n        throw new Error(\n          'BUG: attempted to update a tag with a tag that has a more recent revision as its value'\n        );\n      }\n\n      tag.subtag = subtag;\n    }\n  }\n\n  static dirty(tag: DirtyableTag | UpdatableTag) {\n    if (\n      DEBUG &&\n      !(tag[TYPE] === MonomorphicTagTypes.Updatable || tag[TYPE] === MonomorphicTagTypes.Dirtyable)\n    ) {\n      throw new Error('Attempted to dirty a tag that was not dirtyable');\n    }\n\n    if (DEBUG) {\n      // Usually by this point, we've already asserted with better error information,\n      // but this is our last line of defense.\n      assertTagNotConsumed!(tag);\n    }\n\n    (tag as MonomorphicTagImpl).revision = ++$REVISION;\n  }\n}\n\nexport const dirty = MonomorphicTagImpl.dirty;\nexport const update = MonomorphicTagImpl.update;\n\n//////////\n\nexport function createTag(): DirtyableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Dirtyable);\n}\n\nexport function createUpdatableTag(): UpdatableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Updatable);\n}\n\n//////////\n\nexport const CONSTANT_TAG = new MonomorphicTagImpl(MonomorphicTagTypes.Constant) as ConstantTag;\n\nexport function isConst({ tag }: Tagged): boolean {\n  return tag === CONSTANT_TAG;\n}\n\nexport function isConstTag(tag: Tag): tag is ConstantTag {\n  return tag === CONSTANT_TAG;\n}\n\n//////////\n\nclass VolatileTag implements Tag {\n  [COMPUTE]() {\n    return VOLATILE;\n  }\n}\n\nexport const VOLATILE_TAG = new VolatileTag();\n\n//////////\n\nclass CurrentTag implements CurrentTag {\n  [COMPUTE]() {\n    return $REVISION;\n  }\n}\n\nexport const CURRENT_TAG = new CurrentTag();\n\n//////////\n\nexport function combine(tags: Tag[]): Tag {\n  let optimized: Tag[] = [];\n\n  for (let i = 0, l = tags.length; i < l; i++) {\n    let tag = tags[i];\n    if (tag === CONSTANT_TAG) continue;\n    optimized.push(tag);\n  }\n\n  return createCombinatorTag(optimized);\n}\n\nexport function createCombinatorTag(tags: Tag[]): Tag {\n  switch (tags.length) {\n    case 0:\n      return CONSTANT_TAG;\n    case 1:\n      return tags[0];\n    default:\n      let tag = new MonomorphicTagImpl(MonomorphicTagTypes.Combinator) as CombinatorTag;\n      (tag as any).subtags = tags;\n      return tag;\n  }\n}\n"],"sourceRoot":""}

@@ -126,6 +126,6 @@ 'use strict';

Object.defineProperty(exports, 'dirtyTag', {
Object.defineProperty(exports, 'dirtyTagFor', {
enumerable: true,
get: function () {
return _meta.dirtyTag;
return _meta.dirtyTagFor;
}

@@ -139,6 +139,6 @@ });

});
Object.defineProperty(exports, 'updateTag', {
Object.defineProperty(exports, 'setPropertyDidChange', {
enumerable: true,
get: function () {
return _meta.updateTag;
return _meta.setPropertyDidChange;
}

@@ -149,8 +149,2 @@ });

Object.defineProperty(exports, 'track', {
enumerable: true,
get: function () {
return _tracking.track;
}
});
Object.defineProperty(exports, 'consume', {

@@ -168,2 +162,14 @@ enumerable: true,

});
Object.defineProperty(exports, 'isTracking', {
enumerable: true,
get: function () {
return _tracking.isTracking;
}
});
Object.defineProperty(exports, 'track', {
enumerable: true,
get: function () {
return _tracking.track;
}
});
Object.defineProperty(exports, 'trackedData', {

@@ -175,2 +181,29 @@ enumerable: true,

});
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Object.defineProperty(exports, 'untrack', {
enumerable: true,
get: function () {
return _tracking.untrack;
}
});
var _debug = require('./lib/debug');
Object.defineProperty(exports, 'setAutotrackingTransactionEnv', {
enumerable: true,
get: function () {
return _debug.setAutotrackingTransactionEnv;
}
});
Object.defineProperty(exports, 'runInAutotrackingTransaction', {
enumerable: true,
get: function () {
return _debug.runInAutotrackingTransaction;
}
});
Object.defineProperty(exports, 'deprecateMutationsInAutotrackingTransaction', {
enumerable: true,
get: function () {
return _debug.deprecateMutationsInAutotrackingTransaction;
}
});
//# sourceMappingURL=data:application/json;charset=utf-8;base64,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

@@ -6,21 +6,34 @@ 'use strict';

});
exports.dirtyTag = dirtyTag;
exports.propertyDidChange = undefined;
exports.setPropertyDidChange = setPropertyDidChange;
exports.dirtyTagFor = dirtyTagFor;
exports.tagFor = tagFor;
exports.updateTag = updateTag;
var _env = require('@glimmer/env');
var _validators = require('./validators');
var TRACKED_TAGS = new WeakMap();
var _debug = require('./debug');
var propertyDidChange = exports.propertyDidChange = function propertyDidChange() {};
function setPropertyDidChange(cb) {
exports.propertyDidChange = propertyDidChange = cb;
}
function isObject(u) {
return typeof u === 'object' && u !== null;
return typeof u === 'object' && u !== null || typeof u === 'function';
}
function dirtyTag(obj, key) {
var TRACKED_TAGS = new WeakMap();
function dirtyTagFor(obj, key) {
if (isObject(obj)) {
var tag = tagFor(obj, key);
if (tag === undefined) {
updateTag(obj, key, (0, _validators.createUpdatableTag)());
} else if ((0, _validators.isConstTag)(tag)) {
throw new Error('BUG: Can\'t update a constant tag');
} else {
(0, _validators.dirty)(tag);
var tags = TRACKED_TAGS.get(obj);
// No tags have been setup for this object yet, return
if (tags === undefined) return;
// Dirty the tag for the specific property if it exists
var propertyTag = tags.get(key);
if (propertyTag !== undefined) {
if (_env.DEBUG) {
(0, _debug.assertTagNotConsumed)(propertyTag, obj, key);
}
(0, _validators.dirty)(propertyTag);
propertyDidChange();
}

@@ -47,15 +60,2 @@ } else {

}
function updateTag(obj, key, newTag) {
if (isObject(obj)) {
var tag = tagFor(obj, key);
if ((0, _validators.isConstTag)(tag)) {
throw new Error('BUG: Can\'t update a constant tag');
} else {
(0, _validators.update)(tag, newTag);
}
return tag;
} else {
throw new Error('BUG: Can\'t update a tag for a primitive');
}
}
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@@ -9,4 +9,8 @@ 'use strict';

exports.consume = consume;
exports.isTracking = isTracking;
exports.untrack = untrack;
exports.trackedData = trackedData;
var _env = require('@glimmer/env');
var _validators = require('./validators');

@@ -16,2 +20,4 @@

var _debug = require('./debug');
function _classCallCheck(instance, Constructor) {

@@ -51,2 +57,5 @@ if (!(instance instanceof Constructor)) {

this.tags.add(tag);
if (_env.DEBUG) {
(0, _debug.markTagAsConsumed)(tag, new Error());
}
this.last = tag;

@@ -73,4 +82,6 @@ };

}();
//////////
function track(callback) {
function track(callback, debuggingContext) {
var parent = CURRENT_TRACKER;

@@ -80,3 +91,7 @@ var current = new Tracker();

try {
callback();
if (_env.DEBUG) {
(0, _debug.runInAutotrackingTransaction)(callback, debuggingContext);
} else {
callback();
}
} finally {

@@ -92,2 +107,14 @@ CURRENT_TRACKER = parent;

}
function isTracking() {
return CURRENT_TRACKER !== null;
}
function untrack(callback) {
var parent = CURRENT_TRACKER;
CURRENT_TRACKER = null;
try {
callback();
} finally {
CURRENT_TRACKER = parent;
}
}
//////////

@@ -111,4 +138,7 @@ var EPOCH = exports.EPOCH = (0, _validators.createTag)();

function setter(self, value) {
if (_env.DEBUG) {
(0, _debug.assertTagNotConsumed)((0, _meta.tagFor)(self, key), self, key, true);
}
(0, _validators.dirty)(EPOCH);
(0, _meta.dirtyTag)(self, key);
(0, _meta.dirtyTagFor)(self, key);
values.set(self, value);

@@ -118,2 +148,2 @@ }

}
//# 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

@@ -6,2 +6,3 @@ 'use strict';

});
exports.CURRENT_TAG = exports.VOLATILE_TAG = exports.CONSTANT_TAG = exports.update = exports.dirty = exports.ALLOW_CYCLES = exports.COMPUTE = exports.VOLATILE = exports.INITIAL = exports.CONSTANT = undefined;
exports.bump = bump;

@@ -16,2 +17,9 @@ exports.value = value;

exports.createCombinatorTag = createCombinatorTag;
var _env = require('@glimmer/env');
var _utils = require('./utils');
var _debug = require('./debug');
function _classCallCheck(instance, Constructor) {

@@ -23,5 +31,2 @@ if (!(instance instanceof Constructor)) {

var symbol = typeof Symbol !== 'undefined' ? Symbol : function (key) {
return '__' + key + Math.floor(Math.random() * Date.now()) + '__';
};
var CONSTANT = exports.CONSTANT = 0;

@@ -35,3 +40,3 @@ var INITIAL = exports.INITIAL = 1;

//////////
var COMPUTE = exports.COMPUTE = symbol('TAG_COMPUTE');
var COMPUTE = exports.COMPUTE = (0, _utils.symbol)('TAG_COMPUTE');
//////////

@@ -52,3 +57,8 @@ /**

*/
function value(_tag) {
function value(tag) {
if (_env.DEBUG) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
return $REVISION;

@@ -67,8 +77,21 @@ }

function validate(tag, snapshot) {
return snapshot >= tag[COMPUTE]();
if (_env.DEBUG) {
IS_VALIDATING = true;
}
var isValid = snapshot >= tag[COMPUTE]();
if (_env.DEBUG) {
IS_VALIDATING = false;
if (isValid) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
}
return isValid;
}
var TYPE = symbol('TAG_TYPE');
var IS_VALIDATING = void 0;
var TYPE = (0, _utils.symbol)('TAG_TYPE');
var ALLOW_CYCLES = exports.ALLOW_CYCLES = void 0;
if (false) {
exports.ALLOW_CYCLES = ALLOW_CYCLES = new WeakSet();
if (_env.DEBUG) {
exports.ALLOW_CYCLES = ALLOW_CYCLES = new WeakMap();
}

@@ -92,5 +115,22 @@

if (lastChecked !== $REVISION) {
if (this.isUpdating === true) {
if (_env.DEBUG && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
} else if (lastChecked !== $REVISION) {
this.isUpdating = true;
this.lastChecked = $REVISION;
if (_env.DEBUG) {
// In DEBUG, we don't cache while validating only, because it is valid
// update a tag between calling `validate()` and `value()`. Once you
// call `value()` on a tag, its revision is effectively locked in, and
// if you attempt to update it to a tag that is more recent it could
// break assumptions in our system. This is why the assertion exists in
// the static `update()` method below.
if (!IS_VALIDATING) {
this.lastChecked = $REVISION;
}
} else {
this.lastChecked = $REVISION;
}
try {

@@ -115,8 +155,2 @@ var subtags = this.subtags,

}
if (this.isUpdating === true) {
if (false && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
}
return this.lastValue;

@@ -126,3 +160,3 @@ };

MonomorphicTagImpl.update = function update(_tag, subtag) {
if (false && _tag[TYPE] !== 1 /* Updatable */) {
if (_env.DEBUG && _tag[TYPE] !== 1 /* Updatable */) {
throw new Error('Attempted to update a tag that was not updatable');

@@ -135,8 +169,6 @@ }

} else {
if (_env.DEBUG && tag.lastChecked === $REVISION && subtag[COMPUTE]() > tag.lastValue) {
throw new Error('BUG: attempted to update a tag with a tag that has a more recent revision as its value');
}
tag.subtag = subtag;
// subtag could be another type of tag, e.g. CURRENT_TAG or VOLATILE_TAG.
// If so, lastChecked/lastValue will be undefined, result in these being
// NaN. This is fine, it will force the system to recompute.
tag.lastChecked = Math.min(tag.lastChecked, subtag.lastChecked);
tag.lastValue = Math.max(tag.lastValue, subtag.lastValue);
}

@@ -146,5 +178,10 @@ };

MonomorphicTagImpl.dirty = function dirty(tag) {
if (false && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
if (_env.DEBUG && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
throw new Error('Attempted to dirty a tag that was not dirtyable');
}
if (_env.DEBUG) {
// Usually by this point, we've already asserted with better error information,
// but this is our last line of defense.
(0, _debug.assertTagNotConsumed)(tag);
}
tag.revision = ++$REVISION;

@@ -227,2 +264,2 @@ };

}
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This\n * snapshot can then later be passed to `validate` with the same tag to\n * determine if the tag has changed at all since the time that `value` was\n * called.\n *\n * The current implementation returns the global revision count directly for\n * performance reasons. This is an implementation detail, and should not be\n * relied on directly by users of these APIs. Instead, Revisions should be\n * treated as if they are opaque/unknown, and should only be interacted with via\n * the `value`/`validate` API.\n *\n * @param tag\n */\nexport function value(tag: Tag): Revision {\n  if (DEBUG) {\n    // compute to cache the latest value, which will prevent us from doing\n    // invalid updates later on.\n    tag[COMPUTE]();\n  }\n\n  return $REVISION;\n}\n\n/**\n * `validate` receives a tag and a snapshot from a previous call to `value` with\n * the same tag, and determines if the tag is still valid compared to the\n * snapshot. If the tag's state has changed at all since then, `validate` will\n * return false, otherwise it will return true. This is used to determine if a\n * calculation related to the tags should be rerun.\n *\n * @param tag\n * @param snapshot\n */\nexport function validate(tag: Tag, snapshot: Revision) {\n  if (DEBUG) {\n    IS_VALIDATING = true;\n  }\n\n  let isValid = snapshot >= tag[COMPUTE]();\n\n  if (DEBUG) {\n    IS_VALIDATING = false;\n\n    if (isValid) {\n      // compute to cache the latest value, which will prevent us from doing\n      // invalid updates later on.\n      tag[COMPUTE]();\n    }\n  }\n\n  return isValid;\n}\n\nlet IS_VALIDATING: boolean | undefined;\n\n//////////\n\n/**\n * This enum represents all of the possible tag types for the monomorphic tag class.\n * Other custom tag classes can exist, such as CurrentTag and VolatileTag, but for\n * performance reasons, any type of tag that is meant to be used frequently should\n * be added to the monomorphic tag.\n */\nconst enum MonomorphicTagTypes {\n  Dirtyable,\n  Updatable,\n  Combinator,\n  Constant,\n}\n\nconst TYPE: unique symbol = symbol('TAG_TYPE');\n\nexport let ALLOW_CYCLES: WeakMap<Tag, boolean> | undefined;\n\nif (DEBUG) {\n  ALLOW_CYCLES = new WeakMap();\n}\n\ninterface MonomorphicTagBase<T extends MonomorphicTagTypes> extends Tag {\n  [TYPE]: T;\n}\n\nexport interface DirtyableTag extends MonomorphicTagBase<MonomorphicTagTypes.Dirtyable> {}\nexport interface UpdatableTag extends MonomorphicTagBase<MonomorphicTagTypes.Updatable> {}\nexport interface CombinatorTag extends MonomorphicTagBase<MonomorphicTagTypes.Combinator> {}\nexport interface ConstantTag extends MonomorphicTagBase<MonomorphicTagTypes.Constant> {}\n\ninterface MonomorphicTagMapping {\n  [MonomorphicTagTypes.Dirtyable]: DirtyableTag;\n  [MonomorphicTagTypes.Updatable]: UpdatableTag;\n  [MonomorphicTagTypes.Combinator]: CombinatorTag;\n  [MonomorphicTagTypes.Constant]: ConstantTag;\n}\n\ntype MonomorphicTag = UnionToIntersection<MonomorphicTagMapping[MonomorphicTagTypes]>;\ntype MonomorphicTagType = UnionToIntersection<MonomorphicTagTypes>;\n\nclass MonomorphicTagImpl implements MonomorphicTag {\n  private revision = INITIAL;\n  private lastChecked = INITIAL;\n  private lastValue = INITIAL;\n\n  private isUpdating = false;\n  private subtag: Tag | null = null;\n  private subtags: Tag[] | null = null;\n\n  [TYPE]: MonomorphicTagType;\n\n  constructor(type: MonomorphicTagTypes) {\n    this[TYPE] = type as MonomorphicTagType;\n  }\n\n  [COMPUTE](): Revision {\n    let { lastChecked } = this;\n\n    if (this.isUpdating === true) {\n      if (DEBUG && !ALLOW_CYCLES!.has(this)) {\n        throw new Error('Cycles in tags are not allowed');\n      }\n\n      this.lastChecked = ++$REVISION;\n    } else if (lastChecked !== $REVISION) {\n      this.isUpdating = true;\n\n      if (DEBUG) {\n        // In DEBUG, we don't cache while validating only, because it is valid\n        // update a tag between calling `validate()` and `value()`. Once you\n        // call `value()` on a tag, its revision is effectively locked in, and\n        // if you attempt to update it to a tag that is more recent it could\n        // break assumptions in our system. This is why the assertion exists in\n        // the static `update()` method below.\n        if (!IS_VALIDATING) {\n          this.lastChecked = $REVISION;\n        }\n      } else {\n        this.lastChecked = $REVISION;\n      }\n\n      try {\n        let { subtags, subtag, revision } = this;\n\n        if (subtag !== null) {\n          revision = Math.max(revision, subtag[COMPUTE]());\n        }\n\n        if (subtags !== null) {\n          for (let i = 0; i < subtags.length; i++) {\n            let value = subtags[i][COMPUTE]();\n            revision = Math.max(value, revision);\n          }\n        }\n\n        this.lastValue = revision;\n      } finally {\n        this.isUpdating = false;\n      }\n    }\n\n    return this.lastValue;\n  }\n\n  static update(_tag: UpdatableTag, subtag: Tag) {\n    if (DEBUG && _tag[TYPE] !== MonomorphicTagTypes.Updatable) {\n      throw new Error('Attempted to update a tag that was not updatable');\n    }\n\n    // TODO: TS 3.7 should allow us to do this via assertion\n    let tag = _tag as MonomorphicTagImpl;\n\n    if (subtag === CONSTANT_TAG) {\n      tag.subtag = null;\n    } else {\n      if (\n        DEBUG &&\n        tag.lastChecked === $REVISION &&\n        (subtag as MonomorphicTagImpl)[COMPUTE]() > tag.lastValue\n      ) {\n        throw new Error(\n          'BUG: attempted to update a tag with a tag that has a more recent revision as its value'\n        );\n      }\n\n      tag.subtag = subtag;\n    }\n  }\n\n  static dirty(tag: DirtyableTag | UpdatableTag) {\n    if (\n      DEBUG &&\n      !(tag[TYPE] === MonomorphicTagTypes.Updatable || tag[TYPE] === MonomorphicTagTypes.Dirtyable)\n    ) {\n      throw new Error('Attempted to dirty a tag that was not dirtyable');\n    }\n\n    if (DEBUG) {\n      // Usually by this point, we've already asserted with better error information,\n      // but this is our last line of defense.\n      assertTagNotConsumed!(tag);\n    }\n\n    (tag as MonomorphicTagImpl).revision = ++$REVISION;\n  }\n}\n\nexport const dirty = MonomorphicTagImpl.dirty;\nexport const update = MonomorphicTagImpl.update;\n\n//////////\n\nexport function createTag(): DirtyableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Dirtyable);\n}\n\nexport function createUpdatableTag(): UpdatableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Updatable);\n}\n\n//////////\n\nexport const CONSTANT_TAG = new MonomorphicTagImpl(MonomorphicTagTypes.Constant) as ConstantTag;\n\nexport function isConst({ tag }: Tagged): boolean {\n  return tag === CONSTANT_TAG;\n}\n\nexport function isConstTag(tag: Tag): tag is ConstantTag {\n  return tag === CONSTANT_TAG;\n}\n\n//////////\n\nclass VolatileTag implements Tag {\n  [COMPUTE]() {\n    return VOLATILE;\n  }\n}\n\nexport const VOLATILE_TAG = new VolatileTag();\n\n//////////\n\nclass CurrentTag implements CurrentTag {\n  [COMPUTE]() {\n    return $REVISION;\n  }\n}\n\nexport const CURRENT_TAG = new CurrentTag();\n\n//////////\n\nexport function combine(tags: Tag[]): Tag {\n  let optimized: Tag[] = [];\n\n  for (let i = 0, l = tags.length; i < l; i++) {\n    let tag = tags[i];\n    if (tag === CONSTANT_TAG) continue;\n    optimized.push(tag);\n  }\n\n  return createCombinatorTag(optimized);\n}\n\nexport function createCombinatorTag(tags: Tag[]): Tag {\n  switch (tags.length) {\n    case 0:\n      return CONSTANT_TAG;\n    case 1:\n      return tags[0];\n    default:\n      let tag = new MonomorphicTagImpl(MonomorphicTagTypes.Combinator) as CombinatorTag;\n      (tag as any).subtags = tags;\n      return tag;\n  }\n}\n"],"sourceRoot":""}
export { ALLOW_CYCLES, bump, combine, COMPUTE, CONSTANT_TAG, CONSTANT, createCombinatorTag, createTag, createUpdatableTag, CURRENT_TAG, dirty, INITIAL, isConst, isConstTag, update, validate, value, VOLATILE_TAG, VOLATILE } from './lib/validators';
export { dirtyTag, tagFor, updateTag } from './lib/meta';
export { track, consume, EPOCH, trackedData } from './lib/tracking';
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export { dirtyTagFor, tagFor, setPropertyDidChange } from './lib/meta';
export { consume, EPOCH, isTracking, track, trackedData, untrack } from './lib/tracking';
export { setAutotrackingTransactionEnv, runInAutotrackingTransaction, deprecateMutationsInAutotrackingTransaction } from './lib/debug';
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@@ -1,15 +0,25 @@

import { dirty, update, createUpdatableTag, CONSTANT_TAG, isConstTag } from './validators';
const TRACKED_TAGS = new WeakMap();
import { DEBUG } from '@glimmer/env';
import { dirty, createUpdatableTag, CONSTANT_TAG } from './validators';
import { assertTagNotConsumed } from './debug';
export let propertyDidChange = function () {};
export function setPropertyDidChange(cb) {
propertyDidChange = cb;
}
function isObject(u) {
return typeof u === 'object' && u !== null;
return typeof u === 'object' && u !== null || typeof u === 'function';
}
export function dirtyTag(obj, key) {
const TRACKED_TAGS = new WeakMap();
export function dirtyTagFor(obj, key) {
if (isObject(obj)) {
let tag = tagFor(obj, key);
if (tag === undefined) {
updateTag(obj, key, createUpdatableTag());
} else if (isConstTag(tag)) {
throw new Error(`BUG: Can't update a constant tag`);
} else {
dirty(tag);
let tags = TRACKED_TAGS.get(obj);
// No tags have been setup for this object yet, return
if (tags === undefined) return;
// Dirty the tag for the specific property if it exists
let propertyTag = tags.get(key);
if (propertyTag !== undefined) {
if (DEBUG) {
assertTagNotConsumed(propertyTag, obj, key);
}
dirty(propertyTag);
propertyDidChange();
}

@@ -36,15 +46,2 @@ } else {

}
export function updateTag(obj, key, newTag) {
if (isObject(obj)) {
let tag = tagFor(obj, key);
if (isConstTag(tag)) {
throw new Error(`BUG: Can't update a constant tag`);
} else {
update(tag, newTag);
}
return tag;
} else {
throw new Error(`BUG: Can't update a tag for a primitive`);
}
}
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@@ -1,4 +0,5 @@

import { combine, CONSTANT_TAG } from './validators';
import { createTag, dirty } from './validators';
import { tagFor, dirtyTag } from './meta';
import { DEBUG } from '@glimmer/env';
import { combine, createTag, dirty, CONSTANT_TAG } from './validators';
import { tagFor, dirtyTagFor } from './meta';
import { markTagAsConsumed, runInAutotrackingTransaction, assertTagNotConsumed } from './debug';
/**

@@ -28,2 +29,5 @@ * Whenever a tracked computed property is entered, the current tracker is

this.tags.add(tag);
if (DEBUG) {
markTagAsConsumed(tag, new Error());
}
this.last = tag;

@@ -44,3 +48,4 @@ }

}
export function track(callback) {
//////////
export function track(callback, debuggingContext) {
let parent = CURRENT_TRACKER;

@@ -50,3 +55,7 @@ let current = new Tracker();

try {
callback();
if (DEBUG) {
runInAutotrackingTransaction(callback, debuggingContext);
} else {
callback();
}
} finally {

@@ -62,2 +71,14 @@ CURRENT_TRACKER = parent;

}
export function isTracking() {
return CURRENT_TRACKER !== null;
}
export function untrack(callback) {
let parent = CURRENT_TRACKER;
CURRENT_TRACKER = null;
try {
callback();
} finally {
CURRENT_TRACKER = parent;
}
}
//////////

@@ -81,4 +102,7 @@ export const EPOCH = createTag();

function setter(self, value) {
if (DEBUG) {
assertTagNotConsumed(tagFor(self, key), self, key, true);
}
dirty(EPOCH);
dirtyTag(self, key);
dirtyTagFor(self, key);
values.set(self, value);

@@ -88,2 +112,2 @@ }

}
//# 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

@@ -1,3 +0,4 @@

const symbol = typeof Symbol !== 'undefined' ? Symbol : key => `__${key}${Math.floor(Math.random() * Date.now())}__`;
import { DEBUG } from '@glimmer/env';
import { symbol } from './utils';
import { assertTagNotConsumed } from './debug';
export const CONSTANT = 0;

@@ -27,3 +28,8 @@ export const INITIAL = 1;

*/
export function value(_tag) {
export function value(tag) {
if (DEBUG) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
return $REVISION;

@@ -42,8 +48,21 @@ }

export function validate(tag, snapshot) {
return snapshot >= tag[COMPUTE]();
if (DEBUG) {
IS_VALIDATING = true;
}
let isValid = snapshot >= tag[COMPUTE]();
if (DEBUG) {
IS_VALIDATING = false;
if (isValid) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
}
return isValid;
}
let IS_VALIDATING;
const TYPE = symbol('TAG_TYPE');
export let ALLOW_CYCLES;
if (false) {
ALLOW_CYCLES = new WeakSet();
if (DEBUG) {
ALLOW_CYCLES = new WeakMap();
}

@@ -62,5 +81,22 @@ class MonomorphicTagImpl {

let { lastChecked } = this;
if (lastChecked !== $REVISION) {
if (this.isUpdating === true) {
if (DEBUG && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
} else if (lastChecked !== $REVISION) {
this.isUpdating = true;
this.lastChecked = $REVISION;
if (DEBUG) {
// In DEBUG, we don't cache while validating only, because it is valid
// update a tag between calling `validate()` and `value()`. Once you
// call `value()` on a tag, its revision is effectively locked in, and
// if you attempt to update it to a tag that is more recent it could
// break assumptions in our system. This is why the assertion exists in
// the static `update()` method below.
if (!IS_VALIDATING) {
this.lastChecked = $REVISION;
}
} else {
this.lastChecked = $REVISION;
}
try {

@@ -82,12 +118,6 @@ let { subtags, subtag, revision } = this;

}
if (this.isUpdating === true) {
if (false && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
}
return this.lastValue;
}
static update(_tag, subtag) {
if (false && _tag[TYPE] !== 1 /* Updatable */) {
if (DEBUG && _tag[TYPE] !== 1 /* Updatable */) {
throw new Error('Attempted to update a tag that was not updatable');

@@ -100,14 +130,17 @@ }

} else {
if (DEBUG && tag.lastChecked === $REVISION && subtag[COMPUTE]() > tag.lastValue) {
throw new Error('BUG: attempted to update a tag with a tag that has a more recent revision as its value');
}
tag.subtag = subtag;
// subtag could be another type of tag, e.g. CURRENT_TAG or VOLATILE_TAG.
// If so, lastChecked/lastValue will be undefined, result in these being
// NaN. This is fine, it will force the system to recompute.
tag.lastChecked = Math.min(tag.lastChecked, subtag.lastChecked);
tag.lastValue = Math.max(tag.lastValue, subtag.lastValue);
}
}
static dirty(tag) {
if (false && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
if (DEBUG && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
throw new Error('Attempted to dirty a tag that was not dirtyable');
}
if (DEBUG) {
// Usually by this point, we've already asserted with better error information,
// but this is our last line of defense.
assertTagNotConsumed(tag);
}
tag.revision = ++$REVISION;

@@ -169,2 +202,2 @@ }

}
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This\n * snapshot can then later be passed to `validate` with the same tag to\n * determine if the tag has changed at all since the time that `value` was\n * called.\n *\n * The current implementation returns the global revision count directly for\n * performance reasons. This is an implementation detail, and should not be\n * relied on directly by users of these APIs. Instead, Revisions should be\n * treated as if they are opaque/unknown, and should only be interacted with via\n * the `value`/`validate` API.\n *\n * @param tag\n */\nexport function value(tag: Tag): Revision {\n  if (DEBUG) {\n    // compute to cache the latest value, which will prevent us from doing\n    // invalid updates later on.\n    tag[COMPUTE]();\n  }\n\n  return $REVISION;\n}\n\n/**\n * `validate` receives a tag and a snapshot from a previous call to `value` with\n * the same tag, and determines if the tag is still valid compared to the\n * snapshot. If the tag's state has changed at all since then, `validate` will\n * return false, otherwise it will return true. This is used to determine if a\n * calculation related to the tags should be rerun.\n *\n * @param tag\n * @param snapshot\n */\nexport function validate(tag: Tag, snapshot: Revision) {\n  if (DEBUG) {\n    IS_VALIDATING = true;\n  }\n\n  let isValid = snapshot >= tag[COMPUTE]();\n\n  if (DEBUG) {\n    IS_VALIDATING = false;\n\n    if (isValid) {\n      // compute to cache the latest value, which will prevent us from doing\n      // invalid updates later on.\n      tag[COMPUTE]();\n    }\n  }\n\n  return isValid;\n}\n\nlet IS_VALIDATING: boolean | undefined;\n\n//////////\n\n/**\n * This enum represents all of the possible tag types for the monomorphic tag class.\n * Other custom tag classes can exist, such as CurrentTag and VolatileTag, but for\n * performance reasons, any type of tag that is meant to be used frequently should\n * be added to the monomorphic tag.\n */\nconst enum MonomorphicTagTypes {\n  Dirtyable,\n  Updatable,\n  Combinator,\n  Constant,\n}\n\nconst TYPE: unique symbol = symbol('TAG_TYPE');\n\nexport let ALLOW_CYCLES: WeakMap<Tag, boolean> | undefined;\n\nif (DEBUG) {\n  ALLOW_CYCLES = new WeakMap();\n}\n\ninterface MonomorphicTagBase<T extends MonomorphicTagTypes> extends Tag {\n  [TYPE]: T;\n}\n\nexport interface DirtyableTag extends MonomorphicTagBase<MonomorphicTagTypes.Dirtyable> {}\nexport interface UpdatableTag extends MonomorphicTagBase<MonomorphicTagTypes.Updatable> {}\nexport interface CombinatorTag extends MonomorphicTagBase<MonomorphicTagTypes.Combinator> {}\nexport interface ConstantTag extends MonomorphicTagBase<MonomorphicTagTypes.Constant> {}\n\ninterface MonomorphicTagMapping {\n  [MonomorphicTagTypes.Dirtyable]: DirtyableTag;\n  [MonomorphicTagTypes.Updatable]: UpdatableTag;\n  [MonomorphicTagTypes.Combinator]: CombinatorTag;\n  [MonomorphicTagTypes.Constant]: ConstantTag;\n}\n\ntype MonomorphicTag = UnionToIntersection<MonomorphicTagMapping[MonomorphicTagTypes]>;\ntype MonomorphicTagType = UnionToIntersection<MonomorphicTagTypes>;\n\nclass MonomorphicTagImpl implements MonomorphicTag {\n  private revision = INITIAL;\n  private lastChecked = INITIAL;\n  private lastValue = INITIAL;\n\n  private isUpdating = false;\n  private subtag: Tag | null = null;\n  private subtags: Tag[] | null = null;\n\n  [TYPE]: MonomorphicTagType;\n\n  constructor(type: MonomorphicTagTypes) {\n    this[TYPE] = type as MonomorphicTagType;\n  }\n\n  [COMPUTE](): Revision {\n    let { lastChecked } = this;\n\n    if (this.isUpdating === true) {\n      if (DEBUG && !ALLOW_CYCLES!.has(this)) {\n        throw new Error('Cycles in tags are not allowed');\n      }\n\n      this.lastChecked = ++$REVISION;\n    } else if (lastChecked !== $REVISION) {\n      this.isUpdating = true;\n\n      if (DEBUG) {\n        // In DEBUG, we don't cache while validating only, because it is valid\n        // update a tag between calling `validate()` and `value()`. Once you\n        // call `value()` on a tag, its revision is effectively locked in, and\n        // if you attempt to update it to a tag that is more recent it could\n        // break assumptions in our system. This is why the assertion exists in\n        // the static `update()` method below.\n        if (!IS_VALIDATING) {\n          this.lastChecked = $REVISION;\n        }\n      } else {\n        this.lastChecked = $REVISION;\n      }\n\n      try {\n        let { subtags, subtag, revision } = this;\n\n        if (subtag !== null) {\n          revision = Math.max(revision, subtag[COMPUTE]());\n        }\n\n        if (subtags !== null) {\n          for (let i = 0; i < subtags.length; i++) {\n            let value = subtags[i][COMPUTE]();\n            revision = Math.max(value, revision);\n          }\n        }\n\n        this.lastValue = revision;\n      } finally {\n        this.isUpdating = false;\n      }\n    }\n\n    return this.lastValue;\n  }\n\n  static update(_tag: UpdatableTag, subtag: Tag) {\n    if (DEBUG && _tag[TYPE] !== MonomorphicTagTypes.Updatable) {\n      throw new Error('Attempted to update a tag that was not updatable');\n    }\n\n    // TODO: TS 3.7 should allow us to do this via assertion\n    let tag = _tag as MonomorphicTagImpl;\n\n    if (subtag === CONSTANT_TAG) {\n      tag.subtag = null;\n    } else {\n      if (\n        DEBUG &&\n        tag.lastChecked === $REVISION &&\n        (subtag as MonomorphicTagImpl)[COMPUTE]() > tag.lastValue\n      ) {\n        throw new Error(\n          'BUG: attempted to update a tag with a tag that has a more recent revision as its value'\n        );\n      }\n\n      tag.subtag = subtag;\n    }\n  }\n\n  static dirty(tag: DirtyableTag | UpdatableTag) {\n    if (\n      DEBUG &&\n      !(tag[TYPE] === MonomorphicTagTypes.Updatable || tag[TYPE] === MonomorphicTagTypes.Dirtyable)\n    ) {\n      throw new Error('Attempted to dirty a tag that was not dirtyable');\n    }\n\n    if (DEBUG) {\n      // Usually by this point, we've already asserted with better error information,\n      // but this is our last line of defense.\n      assertTagNotConsumed!(tag);\n    }\n\n    (tag as MonomorphicTagImpl).revision = ++$REVISION;\n  }\n}\n\nexport const dirty = MonomorphicTagImpl.dirty;\nexport const update = MonomorphicTagImpl.update;\n\n//////////\n\nexport function createTag(): DirtyableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Dirtyable);\n}\n\nexport function createUpdatableTag(): UpdatableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Updatable);\n}\n\n//////////\n\nexport const CONSTANT_TAG = new MonomorphicTagImpl(MonomorphicTagTypes.Constant) as ConstantTag;\n\nexport function isConst({ tag }: Tagged): boolean {\n  return tag === CONSTANT_TAG;\n}\n\nexport function isConstTag(tag: Tag): tag is ConstantTag {\n  return tag === CONSTANT_TAG;\n}\n\n//////////\n\nclass VolatileTag implements Tag {\n  [COMPUTE]() {\n    return VOLATILE;\n  }\n}\n\nexport const VOLATILE_TAG = new VolatileTag();\n\n//////////\n\nclass CurrentTag implements CurrentTag {\n  [COMPUTE]() {\n    return $REVISION;\n  }\n}\n\nexport const CURRENT_TAG = new CurrentTag();\n\n//////////\n\nexport function combine(tags: Tag[]): Tag {\n  let optimized: Tag[] = [];\n\n  for (let i = 0, l = tags.length; i < l; i++) {\n    let tag = tags[i];\n    if (tag === CONSTANT_TAG) continue;\n    optimized.push(tag);\n  }\n\n  return createCombinatorTag(optimized);\n}\n\nexport function createCombinatorTag(tags: Tag[]): Tag {\n  switch (tags.length) {\n    case 0:\n      return CONSTANT_TAG;\n    case 1:\n      return tags[0];\n    default:\n      let tag = new MonomorphicTagImpl(MonomorphicTagTypes.Combinator) as CombinatorTag;\n      (tag as any).subtags = tags;\n      return tag;\n  }\n}\n"],"sourceRoot":""}
export { ALLOW_CYCLES, bump, combine, COMPUTE, CONSTANT_TAG, CONSTANT, createCombinatorTag, createTag, createUpdatableTag, CURRENT_TAG, dirty, INITIAL, isConst, isConstTag, update, validate, value, VOLATILE_TAG, VOLATILE } from './lib/validators';
export { dirtyTag, tagFor, updateTag } from './lib/meta';
export { track, consume, EPOCH, trackedData } from './lib/tracking';
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export { dirtyTagFor, tagFor, setPropertyDidChange } from './lib/meta';
export { consume, EPOCH, isTracking, track, trackedData, untrack } from './lib/tracking';
export { setAutotrackingTransactionEnv, runInAutotrackingTransaction, deprecateMutationsInAutotrackingTransaction } from './lib/debug';
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@@ -1,15 +0,25 @@

import { dirty, update, createUpdatableTag, CONSTANT_TAG, isConstTag } from './validators';
var TRACKED_TAGS = new WeakMap();
import { DEBUG } from '@glimmer/env';
import { dirty, createUpdatableTag, CONSTANT_TAG } from './validators';
import { assertTagNotConsumed } from './debug';
export var propertyDidChange = function propertyDidChange() {};
export function setPropertyDidChange(cb) {
propertyDidChange = cb;
}
function isObject(u) {
return typeof u === 'object' && u !== null;
return typeof u === 'object' && u !== null || typeof u === 'function';
}
export function dirtyTag(obj, key) {
var TRACKED_TAGS = new WeakMap();
export function dirtyTagFor(obj, key) {
if (isObject(obj)) {
var tag = tagFor(obj, key);
if (tag === undefined) {
updateTag(obj, key, createUpdatableTag());
} else if (isConstTag(tag)) {
throw new Error('BUG: Can\'t update a constant tag');
} else {
dirty(tag);
var tags = TRACKED_TAGS.get(obj);
// No tags have been setup for this object yet, return
if (tags === undefined) return;
// Dirty the tag for the specific property if it exists
var propertyTag = tags.get(key);
if (propertyTag !== undefined) {
if (DEBUG) {
assertTagNotConsumed(propertyTag, obj, key);
}
dirty(propertyTag);
propertyDidChange();
}

@@ -36,15 +46,2 @@ } else {

}
export function updateTag(obj, key, newTag) {
if (isObject(obj)) {
var tag = tagFor(obj, key);
if (isConstTag(tag)) {
throw new Error('BUG: Can\'t update a constant tag');
} else {
update(tag, newTag);
}
return tag;
} else {
throw new Error('BUG: Can\'t update a tag for a primitive');
}
}
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
import { combine as _combine, CONSTANT_TAG } from './validators';
import { createTag, dirty } from './validators';
import { tagFor, dirtyTag } from './meta';
import { DEBUG } from '@glimmer/env';
import { combine as _combine, createTag, dirty, CONSTANT_TAG } from './validators';
import { tagFor, dirtyTagFor } from './meta';
import { markTagAsConsumed, runInAutotrackingTransaction, assertTagNotConsumed } from './debug';
/**

@@ -34,2 +35,5 @@ * Whenever a tracked computed property is entered, the current tracker is

this.tags.add(tag);
if (DEBUG) {
markTagAsConsumed(tag, new Error());
}
this.last = tag;

@@ -56,4 +60,6 @@ };

}();
//////////
export function track(callback) {
export function track(callback, debuggingContext) {
var parent = CURRENT_TRACKER;

@@ -63,3 +69,7 @@ var current = new Tracker();

try {
callback();
if (DEBUG) {
runInAutotrackingTransaction(callback, debuggingContext);
} else {
callback();
}
} finally {

@@ -75,2 +85,14 @@ CURRENT_TRACKER = parent;

}
export function isTracking() {
return CURRENT_TRACKER !== null;
}
export function untrack(callback) {
var parent = CURRENT_TRACKER;
CURRENT_TRACKER = null;
try {
callback();
} finally {
CURRENT_TRACKER = parent;
}
}
//////////

@@ -94,4 +116,7 @@ export var EPOCH = createTag();

function setter(self, value) {
if (DEBUG) {
assertTagNotConsumed(tagFor(self, key), self, key, true);
}
dirty(EPOCH);
dirtyTag(self, key);
dirtyTagFor(self, key);
values.set(self, value);

@@ -101,2 +126,2 @@ }

}
//# 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
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var symbol = typeof Symbol !== 'undefined' ? Symbol : function (key) {
return '__' + key + Math.floor(Math.random() * Date.now()) + '__';
};
import { DEBUG } from '@glimmer/env';
import { symbol } from './utils';
import { assertTagNotConsumed } from './debug';
export var CONSTANT = 0;

@@ -30,3 +30,8 @@ export var INITIAL = 1;

*/
export function value(_tag) {
export function value(tag) {
if (DEBUG) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
return $REVISION;

@@ -45,8 +50,21 @@ }

export function validate(tag, snapshot) {
return snapshot >= tag[COMPUTE]();
if (DEBUG) {
IS_VALIDATING = true;
}
var isValid = snapshot >= tag[COMPUTE]();
if (DEBUG) {
IS_VALIDATING = false;
if (isValid) {
// compute to cache the latest value, which will prevent us from doing
// invalid updates later on.
tag[COMPUTE]();
}
}
return isValid;
}
var IS_VALIDATING = void 0;
var TYPE = symbol('TAG_TYPE');
export var ALLOW_CYCLES = void 0;
if (false) {
ALLOW_CYCLES = new WeakSet();
if (DEBUG) {
ALLOW_CYCLES = new WeakMap();
}

@@ -70,5 +88,22 @@

if (lastChecked !== $REVISION) {
if (this.isUpdating === true) {
if (DEBUG && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
} else if (lastChecked !== $REVISION) {
this.isUpdating = true;
this.lastChecked = $REVISION;
if (DEBUG) {
// In DEBUG, we don't cache while validating only, because it is valid
// update a tag between calling `validate()` and `value()`. Once you
// call `value()` on a tag, its revision is effectively locked in, and
// if you attempt to update it to a tag that is more recent it could
// break assumptions in our system. This is why the assertion exists in
// the static `update()` method below.
if (!IS_VALIDATING) {
this.lastChecked = $REVISION;
}
} else {
this.lastChecked = $REVISION;
}
try {

@@ -93,8 +128,2 @@ var subtags = this.subtags,

}
if (this.isUpdating === true) {
if (false && !ALLOW_CYCLES.has(this)) {
throw new Error('Cycles in tags are not allowed');
}
this.lastChecked = ++$REVISION;
}
return this.lastValue;

@@ -104,3 +133,3 @@ };

MonomorphicTagImpl.update = function update(_tag, subtag) {
if (false && _tag[TYPE] !== 1 /* Updatable */) {
if (DEBUG && _tag[TYPE] !== 1 /* Updatable */) {
throw new Error('Attempted to update a tag that was not updatable');

@@ -113,8 +142,6 @@ }

} else {
if (DEBUG && tag.lastChecked === $REVISION && subtag[COMPUTE]() > tag.lastValue) {
throw new Error('BUG: attempted to update a tag with a tag that has a more recent revision as its value');
}
tag.subtag = subtag;
// subtag could be another type of tag, e.g. CURRENT_TAG or VOLATILE_TAG.
// If so, lastChecked/lastValue will be undefined, result in these being
// NaN. This is fine, it will force the system to recompute.
tag.lastChecked = Math.min(tag.lastChecked, subtag.lastChecked);
tag.lastValue = Math.max(tag.lastValue, subtag.lastValue);
}

@@ -124,5 +151,10 @@ };

MonomorphicTagImpl.dirty = function dirty(tag) {
if (false && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
if (DEBUG && !(tag[TYPE] === 1 /* Updatable */ || tag[TYPE] === 0 /* Dirtyable */)) {
throw new Error('Attempted to dirty a tag that was not dirtyable');
}
if (DEBUG) {
// Usually by this point, we've already asserted with better error information,
// but this is our last line of defense.
assertTagNotConsumed(tag);
}
tag.revision = ++$REVISION;

@@ -205,2 +237,2 @@ };

}
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This\n * snapshot can then later be passed to `validate` with the same tag to\n * determine if the tag has changed at all since the time that `value` was\n * called.\n *\n * The current implementation returns the global revision count directly for\n * performance reasons. This is an implementation detail, and should not be\n * relied on directly by users of these APIs. Instead, Revisions should be\n * treated as if they are opaque/unknown, and should only be interacted with via\n * the `value`/`validate` API.\n *\n * @param tag\n */\nexport function value(tag: Tag): Revision {\n  if (DEBUG) {\n    // compute to cache the latest value, which will prevent us from doing\n    // invalid updates later on.\n    tag[COMPUTE]();\n  }\n\n  return $REVISION;\n}\n\n/**\n * `validate` receives a tag and a snapshot from a previous call to `value` with\n * the same tag, and determines if the tag is still valid compared to the\n * snapshot. If the tag's state has changed at all since then, `validate` will\n * return false, otherwise it will return true. This is used to determine if a\n * calculation related to the tags should be rerun.\n *\n * @param tag\n * @param snapshot\n */\nexport function validate(tag: Tag, snapshot: Revision) {\n  if (DEBUG) {\n    IS_VALIDATING = true;\n  }\n\n  let isValid = snapshot >= tag[COMPUTE]();\n\n  if (DEBUG) {\n    IS_VALIDATING = false;\n\n    if (isValid) {\n      // compute to cache the latest value, which will prevent us from doing\n      // invalid updates later on.\n      tag[COMPUTE]();\n    }\n  }\n\n  return isValid;\n}\n\nlet IS_VALIDATING: boolean | undefined;\n\n//////////\n\n/**\n * This enum represents all of the possible tag types for the monomorphic tag class.\n * Other custom tag classes can exist, such as CurrentTag and VolatileTag, but for\n * performance reasons, any type of tag that is meant to be used frequently should\n * be added to the monomorphic tag.\n */\nconst enum MonomorphicTagTypes {\n  Dirtyable,\n  Updatable,\n  Combinator,\n  Constant,\n}\n\nconst TYPE: unique symbol = symbol('TAG_TYPE');\n\nexport let ALLOW_CYCLES: WeakMap<Tag, boolean> | undefined;\n\nif (DEBUG) {\n  ALLOW_CYCLES = new WeakMap();\n}\n\ninterface MonomorphicTagBase<T extends MonomorphicTagTypes> extends Tag {\n  [TYPE]: T;\n}\n\nexport interface DirtyableTag extends MonomorphicTagBase<MonomorphicTagTypes.Dirtyable> {}\nexport interface UpdatableTag extends MonomorphicTagBase<MonomorphicTagTypes.Updatable> {}\nexport interface CombinatorTag extends MonomorphicTagBase<MonomorphicTagTypes.Combinator> {}\nexport interface ConstantTag extends MonomorphicTagBase<MonomorphicTagTypes.Constant> {}\n\ninterface MonomorphicTagMapping {\n  [MonomorphicTagTypes.Dirtyable]: DirtyableTag;\n  [MonomorphicTagTypes.Updatable]: UpdatableTag;\n  [MonomorphicTagTypes.Combinator]: CombinatorTag;\n  [MonomorphicTagTypes.Constant]: ConstantTag;\n}\n\ntype MonomorphicTag = UnionToIntersection<MonomorphicTagMapping[MonomorphicTagTypes]>;\ntype MonomorphicTagType = UnionToIntersection<MonomorphicTagTypes>;\n\nclass MonomorphicTagImpl implements MonomorphicTag {\n  private revision = INITIAL;\n  private lastChecked = INITIAL;\n  private lastValue = INITIAL;\n\n  private isUpdating = false;\n  private subtag: Tag | null = null;\n  private subtags: Tag[] | null = null;\n\n  [TYPE]: MonomorphicTagType;\n\n  constructor(type: MonomorphicTagTypes) {\n    this[TYPE] = type as MonomorphicTagType;\n  }\n\n  [COMPUTE](): Revision {\n    let { lastChecked } = this;\n\n    if (this.isUpdating === true) {\n      if (DEBUG && !ALLOW_CYCLES!.has(this)) {\n        throw new Error('Cycles in tags are not allowed');\n      }\n\n      this.lastChecked = ++$REVISION;\n    } else if (lastChecked !== $REVISION) {\n      this.isUpdating = true;\n\n      if (DEBUG) {\n        // In DEBUG, we don't cache while validating only, because it is valid\n        // update a tag between calling `validate()` and `value()`. Once you\n        // call `value()` on a tag, its revision is effectively locked in, and\n        // if you attempt to update it to a tag that is more recent it could\n        // break assumptions in our system. This is why the assertion exists in\n        // the static `update()` method below.\n        if (!IS_VALIDATING) {\n          this.lastChecked = $REVISION;\n        }\n      } else {\n        this.lastChecked = $REVISION;\n      }\n\n      try {\n        let { subtags, subtag, revision } = this;\n\n        if (subtag !== null) {\n          revision = Math.max(revision, subtag[COMPUTE]());\n        }\n\n        if (subtags !== null) {\n          for (let i = 0; i < subtags.length; i++) {\n            let value = subtags[i][COMPUTE]();\n            revision = Math.max(value, revision);\n          }\n        }\n\n        this.lastValue = revision;\n      } finally {\n        this.isUpdating = false;\n      }\n    }\n\n    return this.lastValue;\n  }\n\n  static update(_tag: UpdatableTag, subtag: Tag) {\n    if (DEBUG && _tag[TYPE] !== MonomorphicTagTypes.Updatable) {\n      throw new Error('Attempted to update a tag that was not updatable');\n    }\n\n    // TODO: TS 3.7 should allow us to do this via assertion\n    let tag = _tag as MonomorphicTagImpl;\n\n    if (subtag === CONSTANT_TAG) {\n      tag.subtag = null;\n    } else {\n      if (\n        DEBUG &&\n        tag.lastChecked === $REVISION &&\n        (subtag as MonomorphicTagImpl)[COMPUTE]() > tag.lastValue\n      ) {\n        throw new Error(\n          'BUG: attempted to update a tag with a tag that has a more recent revision as its value'\n        );\n      }\n\n      tag.subtag = subtag;\n    }\n  }\n\n  static dirty(tag: DirtyableTag | UpdatableTag) {\n    if (\n      DEBUG &&\n      !(tag[TYPE] === MonomorphicTagTypes.Updatable || tag[TYPE] === MonomorphicTagTypes.Dirtyable)\n    ) {\n      throw new Error('Attempted to dirty a tag that was not dirtyable');\n    }\n\n    if (DEBUG) {\n      // Usually by this point, we've already asserted with better error information,\n      // but this is our last line of defense.\n      assertTagNotConsumed!(tag);\n    }\n\n    (tag as MonomorphicTagImpl).revision = ++$REVISION;\n  }\n}\n\nexport const dirty = MonomorphicTagImpl.dirty;\nexport const update = MonomorphicTagImpl.update;\n\n//////////\n\nexport function createTag(): DirtyableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Dirtyable);\n}\n\nexport function createUpdatableTag(): UpdatableTag {\n  return new MonomorphicTagImpl(MonomorphicTagTypes.Updatable);\n}\n\n//////////\n\nexport const CONSTANT_TAG = new MonomorphicTagImpl(MonomorphicTagTypes.Constant) as ConstantTag;\n\nexport function isConst({ tag }: Tagged): boolean {\n  return tag === CONSTANT_TAG;\n}\n\nexport function isConstTag(tag: Tag): tag is ConstantTag {\n  return tag === CONSTANT_TAG;\n}\n\n//////////\n\nclass VolatileTag implements Tag {\n  [COMPUTE]() {\n    return VOLATILE;\n  }\n}\n\nexport const VOLATILE_TAG = new VolatileTag();\n\n//////////\n\nclass CurrentTag implements CurrentTag {\n  [COMPUTE]() {\n    return $REVISION;\n  }\n}\n\nexport const CURRENT_TAG = new CurrentTag();\n\n//////////\n\nexport function combine(tags: Tag[]): Tag {\n  let optimized: Tag[] = [];\n\n  for (let i = 0, l = tags.length; i < l; i++) {\n    let tag = tags[i];\n    if (tag === CONSTANT_TAG) continue;\n    optimized.push(tag);\n  }\n\n  return createCombinatorTag(optimized);\n}\n\nexport function createCombinatorTag(tags: Tag[]): Tag {\n  switch (tags.length) {\n    case 0:\n      return CONSTANT_TAG;\n    case 1:\n      return tags[0];\n    default:\n      let tag = new MonomorphicTagImpl(MonomorphicTagTypes.Combinator) as CombinatorTag;\n      (tag as any).subtags = tags;\n      return tag;\n  }\n}\n"],"sourceRoot":""}
export { ALLOW_CYCLES, bump, CombinatorTag, combine, COMPUTE, CONSTANT_TAG, CONSTANT, ConstantTag, createCombinatorTag, createTag, createUpdatableTag, CURRENT_TAG, dirty, DirtyableTag, EntityTag, EntityTagged, INITIAL, isConst, isConstTag, Revision, Tag, Tagged, UpdatableTag, update, validate, value, VOLATILE_TAG, VOLATILE, } from './lib/validators';
export { dirtyTag, tagFor, updateTag } from './lib/meta';
export { track, consume, EPOCH, trackedData } from './lib/tracking';
export { dirtyTagFor, tagFor, setPropertyDidChange } from './lib/meta';
export { consume, EPOCH, isTracking, track, trackedData, untrack } from './lib/tracking';
export { setAutotrackingTransactionEnv, runInAutotrackingTransaction, deprecateMutationsInAutotrackingTransaction, } from './lib/debug';
//# sourceMappingURL=index.d.ts.map
import { UpdatableTag, ConstantTag } from './validators';
export declare function dirtyTag<T>(obj: T, key: keyof T): void;
export declare function tagFor<T extends object>(obj: T, key: keyof T): UpdatableTag;
export declare function tagFor<T>(obj: T, key: string): ConstantTag;
export declare function updateTag<T>(obj: T, key: keyof T, newTag: UpdatableTag): UpdatableTag;
export declare let propertyDidChange: () => void;
export declare function setPropertyDidChange(cb: () => void): void;
export declare function dirtyTagFor<T>(obj: T, key: keyof T | string | symbol): void;
export declare function tagFor<T>(obj: T, key: keyof T | string | symbol): UpdatableTag | ConstantTag;
//# sourceMappingURL=meta.d.ts.map
import { Tag } from './validators';
export declare function track(callback: () => void): Tag;
export declare function track(callback: () => void, debuggingContext?: string | false): Tag;
export declare function consume(tag: Tag): void;
export declare function isTracking(): boolean;
export declare function untrack(callback: () => void): void;
export declare const EPOCH: import("./validators").DirtyableTag;

@@ -5,0 +7,0 @@ export declare type Getter<T, K extends keyof T> = (self: T) => T[K] | undefined;

@@ -1,2 +0,2 @@

declare type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends ((k: infer I) => void) ? I : never;
import { UnionToIntersection } from './utils';
export declare type Revision = number;

@@ -33,3 +33,3 @@ export declare const CONSTANT: Revision;

*/
export declare function value(_tag: Tag): Revision;
export declare function value(tag: Tag): Revision;
/**

@@ -59,3 +59,3 @@ * `validate` receives a tag and a snapshot from a previous call to `value` with

declare const TYPE: unique symbol;
export declare let ALLOW_CYCLES: WeakSet<UpdatableTag>;
export declare let ALLOW_CYCLES: WeakMap<Tag, boolean> | undefined;
interface MonomorphicTagBase<T extends MonomorphicTagTypes> extends Tag {

@@ -62,0 +62,0 @@ [TYPE]: T;

{
"name": "@glimmer/validator",
"version": "0.44.0",
"version": "0.45.0",
"description": "Objects used to track values and their dirtiness in Glimmer",
"license": "MIT",
"dependencies": {
"@glimmer/env": "^0.1.7"
},
"devDependencies": {

@@ -7,0 +10,0 @@ "typescript": "^2.8.3"

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