57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
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/**
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* @license
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* Copyright (c) 2024 Handsoncode. All rights reserved.
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*/
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import { addressKey } from './Cell';
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import { SimpleRangeValue } from './SimpleRangeValue';
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export class ContentChanges {
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constructor() {
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this.changes = new Map();
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}
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static empty() {
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return new ContentChanges();
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}
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addAll(other) {
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for (const change of other.changes.values()) {
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this.add(change.address, change);
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}
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return this;
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}
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addChange(newValue, address, oldValue) {
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this.addInterpreterValue(newValue, address, oldValue);
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}
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exportChanges(exporter) {
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let ret = [];
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this.changes.forEach(e => {
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const change = exporter.exportChange(e);
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if (Array.isArray(change)) {
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ret = ret.concat(change);
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} else {
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ret.push(change);
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}
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});
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return ret;
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}
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getChanges() {
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return Array.from(this.changes.values());
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}
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isEmpty() {
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return this.changes.size === 0;
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}
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add(address, change) {
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const value = change.value;
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if (value instanceof SimpleRangeValue) {
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for (const cellAddress of value.effectiveAddressesFromData(address)) {
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this.changes.delete(addressKey(cellAddress));
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}
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}
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this.changes.set(addressKey(address), change);
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}
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addInterpreterValue(value, address, oldValue) {
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this.add(address, {
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address,
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value,
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oldValue
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});
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}
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}
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