monaco-editor
Version:
A browser based code editor
142 lines (141 loc) • 7.13 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
var WorkerBasedDocumentDiffProvider_1;
import { registerSingleton } from '../../../../platform/instantiation/common/extensions.js';
import { IInstantiationService, createDecorator } from '../../../../platform/instantiation/common/instantiation.js';
import { Emitter } from '../../../../base/common/event.js';
import { StopWatch } from '../../../../base/common/stopwatch.js';
import { LineRange } from '../../../common/core/lineRange.js';
import { DetailedLineRangeMapping, RangeMapping } from '../../../common/diff/rangeMapping.js';
import { IEditorWorkerService } from '../../../common/services/editorWorker.js';
import { ITelemetryService } from '../../../../platform/telemetry/common/telemetry.js';
export const IDiffProviderFactoryService = createDecorator('diffProviderFactoryService');
let WorkerBasedDiffProviderFactoryService = class WorkerBasedDiffProviderFactoryService {
constructor(instantiationService) {
this.instantiationService = instantiationService;
}
createDiffProvider(options) {
return this.instantiationService.createInstance(WorkerBasedDocumentDiffProvider, options);
}
};
WorkerBasedDiffProviderFactoryService = __decorate([
__param(0, IInstantiationService)
], WorkerBasedDiffProviderFactoryService);
export { WorkerBasedDiffProviderFactoryService };
registerSingleton(IDiffProviderFactoryService, WorkerBasedDiffProviderFactoryService, 1 /* InstantiationType.Delayed */);
let WorkerBasedDocumentDiffProvider = class WorkerBasedDocumentDiffProvider {
static { WorkerBasedDocumentDiffProvider_1 = this; }
static { this.diffCache = new Map(); }
constructor(options, editorWorkerService, telemetryService) {
this.editorWorkerService = editorWorkerService;
this.telemetryService = telemetryService;
this.onDidChangeEventEmitter = new Emitter();
this.onDidChange = this.onDidChangeEventEmitter.event;
this.diffAlgorithm = 'advanced';
this.diffAlgorithmOnDidChangeSubscription = undefined;
this.setOptions(options);
}
dispose() {
this.diffAlgorithmOnDidChangeSubscription?.dispose();
}
async computeDiff(original, modified, options, cancellationToken) {
if (typeof this.diffAlgorithm !== 'string') {
return this.diffAlgorithm.computeDiff(original, modified, options, cancellationToken);
}
if (original.isDisposed() || modified.isDisposed()) {
// TODO@hediet
return {
changes: [],
identical: true,
quitEarly: false,
moves: [],
};
}
// This significantly speeds up the case when the original file is empty
if (original.getLineCount() === 1 && original.getLineMaxColumn(1) === 1) {
if (modified.getLineCount() === 1 && modified.getLineMaxColumn(1) === 1) {
return {
changes: [],
identical: true,
quitEarly: false,
moves: [],
};
}
return {
changes: [
new DetailedLineRangeMapping(new LineRange(1, 2), new LineRange(1, modified.getLineCount() + 1), [
new RangeMapping(original.getFullModelRange(), modified.getFullModelRange())
])
],
identical: false,
quitEarly: false,
moves: [],
};
}
const uriKey = JSON.stringify([original.uri.toString(), modified.uri.toString()]);
const context = JSON.stringify([original.id, modified.id, original.getAlternativeVersionId(), modified.getAlternativeVersionId(), JSON.stringify(options)]);
const c = WorkerBasedDocumentDiffProvider_1.diffCache.get(uriKey);
if (c && c.context === context) {
return c.result;
}
const sw = StopWatch.create();
const result = await this.editorWorkerService.computeDiff(original.uri, modified.uri, options, this.diffAlgorithm);
const timeMs = sw.elapsed();
this.telemetryService.publicLog2('diffEditor.computeDiff', {
timeMs,
timedOut: result?.quitEarly ?? true,
detectedMoves: options.computeMoves ? (result?.moves.length ?? 0) : -1,
});
if (cancellationToken.isCancellationRequested) {
// Text models might be disposed!
return {
changes: [],
identical: false,
quitEarly: true,
moves: [],
};
}
if (!result) {
throw new Error('no diff result available');
}
// max 10 items in cache
if (WorkerBasedDocumentDiffProvider_1.diffCache.size > 10) {
WorkerBasedDocumentDiffProvider_1.diffCache.delete(WorkerBasedDocumentDiffProvider_1.diffCache.keys().next().value);
}
WorkerBasedDocumentDiffProvider_1.diffCache.set(uriKey, { result, context });
return result;
}
setOptions(newOptions) {
let didChange = false;
if (newOptions.diffAlgorithm) {
if (this.diffAlgorithm !== newOptions.diffAlgorithm) {
this.diffAlgorithmOnDidChangeSubscription?.dispose();
this.diffAlgorithmOnDidChangeSubscription = undefined;
this.diffAlgorithm = newOptions.diffAlgorithm;
if (typeof newOptions.diffAlgorithm !== 'string') {
this.diffAlgorithmOnDidChangeSubscription = newOptions.diffAlgorithm.onDidChange(() => this.onDidChangeEventEmitter.fire());
}
didChange = true;
}
}
if (didChange) {
this.onDidChangeEventEmitter.fire();
}
}
};
WorkerBasedDocumentDiffProvider = WorkerBasedDocumentDiffProvider_1 = __decorate([
__param(1, IEditorWorkerService),
__param(2, ITelemetryService)
], WorkerBasedDocumentDiffProvider);
export { WorkerBasedDocumentDiffProvider };