53c65f468f
This commit updates compiler_spec.ts in the Ivy LS suite to utilize the new testing environment which was introduced in the previous commit. Eventually all specs should be converted, but converting one right now helps ensure that the new testing env is working properly and able to support real tests. PR Close #40679
68 lines
2.2 KiB
TypeScript
68 lines
2.2 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import * as ts from 'typescript/lib/tsserverlibrary';
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import {LanguageService} from '../../language_service';
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import {extractCursorInfo} from './util';
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/**
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* A file that is currently open in the `ts.Project`, with a cursor position.
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*/
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export class OpenBuffer {
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private _cursor: number = 0;
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constructor(
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private ngLS: LanguageService, private projectFileName: string,
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private scriptInfo: ts.server.ScriptInfo) {}
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get cursor(): number {
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return this._cursor;
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}
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get contents(): string {
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const snapshot = this.scriptInfo.getSnapshot();
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return snapshot.getText(0, snapshot.getLength());
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}
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set contents(newContents: string) {
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const snapshot = this.scriptInfo.getSnapshot();
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this.scriptInfo.editContent(0, snapshot.getLength(), newContents);
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// If the cursor goes beyond the new length of the buffer, clamp it to the end of the buffer.
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if (this._cursor > newContents.length) {
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this._cursor = newContents.length;
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}
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}
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/**
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* Find a snippet of text within the given buffer and position the cursor within it.
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*
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* @param snippetWithCursor a snippet of text which contains the '¦' symbol, representing where
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* the cursor should be placed within the snippet when located in the larger buffer.
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*/
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moveCursorToText(snippetWithCursor: string): void {
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const {text: snippet, cursor} = extractCursorInfo(snippetWithCursor);
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const snippetIndex = this.contents.indexOf(snippet);
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if (snippetIndex === -1) {
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throw new Error(`Snippet '${snippet}' not found in ${this.projectFileName}`);
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}
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if (this.contents.indexOf(snippet, snippetIndex + 1) !== -1) {
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throw new Error(`Snippet '${snippet}' is not unique within ${this.projectFileName}`);
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}
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this._cursor = snippetIndex + cursor;
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}
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/**
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* Execute the `getDefinitionAndBoundSpan` operation in the Language Service at the cursor
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* location in this buffer.
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*/
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getDefinitionAndBoundSpan(): ts.DefinitionInfoAndBoundSpan|undefined {
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return this.ngLS.getDefinitionAndBoundSpan(this.scriptInfo.fileName, this._cursor);
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}
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}
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