ember-legacy-class-transform
Version:
The default blueprint for ember-cli addons.
210 lines (207 loc) • 22.8 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.IteratorSynchronizer = exports.ReferenceIterator = exports.IterationArtifacts = exports.ListItem = undefined;
var _util = require("@glimmer/util");
class ListItem extends _util.ListNode {
constructor(iterable, result) {
super(iterable.valueReferenceFor(result));
this.retained = false;
this.seen = false;
this.key = result.key;
this.iterable = iterable;
this.memo = iterable.memoReferenceFor(result);
}
update(item) {
this.retained = true;
this.iterable.updateValueReference(this.value, item);
this.iterable.updateMemoReference(this.memo, item);
}
shouldRemove() {
return !this.retained;
}
reset() {
this.retained = false;
this.seen = false;
}
}
exports.ListItem = ListItem;
class IterationArtifacts {
constructor(iterable) {
this.map = (0, _util.dict)();
this.list = new _util.LinkedList();
this.tag = iterable.tag;
this.iterable = iterable;
}
isEmpty() {
let iterator = this.iterator = this.iterable.iterate();
return iterator.isEmpty();
}
iterate() {
let iterator = this.iterator || this.iterable.iterate();
this.iterator = null;
return iterator;
}
has(key) {
return !!this.map[key];
}
get(key) {
return this.map[key];
}
wasSeen(key) {
let node = this.map[key];
return node && node.seen;
}
append(item) {
let { map, list, iterable } = this;
let node = map[item.key] = new ListItem(iterable, item);
list.append(node);
return node;
}
insertBefore(item, reference) {
let { map, list, iterable } = this;
let node = map[item.key] = new ListItem(iterable, item);
node.retained = true;
list.insertBefore(node, reference);
return node;
}
move(item, reference) {
let { list } = this;
item.retained = true;
list.remove(item);
list.insertBefore(item, reference);
}
remove(item) {
let { list } = this;
list.remove(item);
delete this.map[item.key];
}
nextNode(item) {
return this.list.nextNode(item);
}
head() {
return this.list.head();
}
}
exports.IterationArtifacts = IterationArtifacts;
class ReferenceIterator {
// if anyone needs to construct this object with something other than
// an iterable, let @wycats know.
constructor(iterable) {
this.iterator = null;
let artifacts = new IterationArtifacts(iterable);
this.artifacts = artifacts;
}
next() {
let { artifacts } = this;
let iterator = this.iterator = this.iterator || artifacts.iterate();
let item = iterator.next();
if (!item) return null;
return artifacts.append(item);
}
}
exports.ReferenceIterator = ReferenceIterator;
var Phase;
(function (Phase) {
Phase[Phase["Append"] = 0] = "Append";
Phase[Phase["Prune"] = 1] = "Prune";
Phase[Phase["Done"] = 2] = "Done";
})(Phase || (Phase = {}));
class IteratorSynchronizer {
constructor({ target, artifacts }) {
this.target = target;
this.artifacts = artifacts;
this.iterator = artifacts.iterate();
this.current = artifacts.head();
}
sync() {
let phase = Phase.Append;
while (true) {
switch (phase) {
case Phase.Append:
phase = this.nextAppend();
break;
case Phase.Prune:
phase = this.nextPrune();
break;
case Phase.Done:
this.nextDone();
return;
}
}
}
advanceToKey(key) {
let { current, artifacts } = this;
let seek = current;
while (seek && seek.key !== key) {
seek.seen = true;
seek = artifacts.nextNode(seek);
}
this.current = seek && artifacts.nextNode(seek);
}
nextAppend() {
let { iterator, current, artifacts } = this;
let item = iterator.next();
if (item === null) {
return this.startPrune();
}
let { key } = item;
if (current && current.key === key) {
this.nextRetain(item);
} else if (artifacts.has(key)) {
this.nextMove(item);
} else {
this.nextInsert(item);
}
return Phase.Append;
}
nextRetain(item) {
let { artifacts, current } = this;
current = (0, _util.expect)(current, 'BUG: current is empty');
current.update(item);
this.current = artifacts.nextNode(current);
this.target.retain(item.key, current.value, current.memo);
}
nextMove(item) {
let { current, artifacts, target } = this;
let { key } = item;
let found = artifacts.get(item.key);
found.update(item);
if (artifacts.wasSeen(item.key)) {
artifacts.move(found, current);
target.move(found.key, found.value, found.memo, current ? current.key : null);
} else {
this.advanceToKey(key);
}
}
nextInsert(item) {
let { artifacts, target, current } = this;
let node = artifacts.insertBefore(item, current);
target.insert(node.key, node.value, node.memo, current ? current.key : null);
}
startPrune() {
this.current = this.artifacts.head();
return Phase.Prune;
}
nextPrune() {
let { artifacts, target, current } = this;
if (current === null) {
return Phase.Done;
}
let node = current;
this.current = artifacts.nextNode(node);
if (node.shouldRemove()) {
artifacts.remove(node);
target.delete(node.key);
} else {
node.reset();
}
return Phase.Prune;
}
nextDone() {
this.target.done();
}
}
exports.IteratorSynchronizer = IteratorSynchronizer;
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{ LinkedList, ListNode, dict, expect } from '@glimmer/util';\nexport class ListItem extends ListNode {\n    constructor(iterable, result) {\n        super(iterable.valueReferenceFor(result));\n        this.retained = false;\n        this.seen = false;\n        this.key = result.key;\n        this.iterable = iterable;\n        this.memo = iterable.memoReferenceFor(result);\n    }\n    update(item) {\n        this.retained = true;\n        this.iterable.updateValueReference(this.value, item);\n        this.iterable.updateMemoReference(this.memo, item);\n    }\n    shouldRemove() {\n        return !this.retained;\n    }\n    reset() {\n        this.retained = false;\n        this.seen = false;\n    }\n}\nexport class IterationArtifacts {\n    constructor(iterable) {\n        this.map = dict();\n        this.list = new LinkedList();\n        this.tag = iterable.tag;\n        this.iterable = iterable;\n    }\n    isEmpty() {\n        let iterator = this.iterator = this.iterable.iterate();\n        return iterator.isEmpty();\n    }\n    iterate() {\n        let iterator = this.iterator || this.iterable.iterate();\n        this.iterator = null;\n        return iterator;\n    }\n    has(key) {\n        return !!this.map[key];\n    }\n    get(key) {\n        return this.map[key];\n    }\n    wasSeen(key) {\n        let node = this.map[key];\n        return node && node.seen;\n    }\n    append(item) {\n        let { map, list, iterable } = this;\n        let node = map[item.key] = new ListItem(iterable, item);\n        list.append(node);\n        return node;\n    }\n    insertBefore(item, reference) {\n        let { map, list, iterable } = this;\n        let node = map[item.key] = new ListItem(iterable, item);\n        node.retained = true;\n        list.insertBefore(node, reference);\n        return node;\n    }\n    move(item, reference) {\n        let { list } = this;\n        item.retained = true;\n        list.remove(item);\n        list.insertBefore(item, reference);\n    }\n    remove(item) {\n        let { list } = this;\n        list.remove(item);\n        delete this.map[item.key];\n    }\n    nextNode(item) {\n        return this.list.nextNode(item);\n    }\n    head() {\n        return this.list.head();\n    }\n}\nexport class ReferenceIterator {\n    // if anyone needs to construct this object with something other than\n    // an iterable, let @wycats know.\n    constructor(iterable) {\n        this.iterator = null;\n        let artifacts = new IterationArtifacts(iterable);\n        this.artifacts = artifacts;\n    }\n    next() {\n        let { artifacts } = this;\n        let iterator = this.iterator = this.iterator || artifacts.iterate();\n        let item = iterator.next();\n        if (!item) return null;\n        return artifacts.append(item);\n    }\n}\nvar Phase;\n(function (Phase) {\n    Phase[Phase[\"Append\"] = 0] = \"Append\";\n    Phase[Phase[\"Prune\"] = 1] = \"Prune\";\n    Phase[Phase[\"Done\"] = 2] = \"Done\";\n})(Phase || (Phase = {}));\nexport class IteratorSynchronizer {\n    constructor({ target, artifacts }) {\n        this.target = target;\n        this.artifacts = artifacts;\n        this.iterator = artifacts.iterate();\n        this.current = artifacts.head();\n    }\n    sync() {\n        let phase = Phase.Append;\n        while (true) {\n            switch (phase) {\n                case Phase.Append:\n                    phase = this.nextAppend();\n                    break;\n                case Phase.Prune:\n                    phase = this.nextPrune();\n                    break;\n                case Phase.Done:\n                    this.nextDone();\n                    return;\n            }\n        }\n    }\n    advanceToKey(key) {\n        let { current, artifacts } = this;\n        let seek = current;\n        while (seek && seek.key !== key) {\n            seek.seen = true;\n            seek = artifacts.nextNode(seek);\n        }\n        this.current = seek && artifacts.nextNode(seek);\n    }\n    nextAppend() {\n        let { iterator, current, artifacts } = this;\n        let item = iterator.next();\n        if (item === null) {\n            return this.startPrune();\n        }\n        let { key } = item;\n        if (current && current.key === key) {\n            this.nextRetain(item);\n        } else if (artifacts.has(key)) {\n            this.nextMove(item);\n        } else {\n            this.nextInsert(item);\n        }\n        return Phase.Append;\n    }\n    nextRetain(item) {\n        let { artifacts, current } = this;\n        current = expect(current, 'BUG: current is empty');\n        current.update(item);\n        this.current = artifacts.nextNode(current);\n        this.target.retain(item.key, current.value, current.memo);\n    }\n    nextMove(item) {\n        let { current, artifacts, target } = this;\n        let { key } = item;\n        let found = artifacts.get(item.key);\n        found.update(item);\n        if (artifacts.wasSeen(item.key)) {\n            artifacts.move(found, current);\n            target.move(found.key, found.value, found.memo, current ? current.key : null);\n        } else {\n            this.advanceToKey(key);\n        }\n    }\n    nextInsert(item) {\n        let { artifacts, target, current } = this;\n        let node = artifacts.insertBefore(item, current);\n        target.insert(node.key, node.value, node.memo, current ? current.key : null);\n    }\n    startPrune() {\n        this.current = this.artifacts.head();\n        return Phase.Prune;\n    }\n    nextPrune() {\n        let { artifacts, target, current } = this;\n        if (current === null) {\n            return Phase.Done;\n        }\n        let node = current;\n        this.current = artifacts.nextNode(node);\n        if (node.shouldRemove()) {\n            artifacts.remove(node);\n            target.delete(node.key);\n        } else {\n            node.reset();\n        }\n        return Phase.Prune;\n    }\n    nextDone() {\n        this.target.done();\n    }\n}"]}