78 lines
2.8 KiB
TypeScript
78 lines
2.8 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 {absoluteFrom as _} from '@angular/compiler-cli/src/ngtsc/file_system';
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import {TestFile} from '@angular/compiler-cli/src/ngtsc/file_system/testing';
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import {LanguageServiceTestEnvironment} from '@angular/language-service/ivy/test/env';
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import {MockServerHost} from './mock_host';
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export function getText(contents: string, textSpan: ts.TextSpan) {
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return contents.substr(textSpan.start, textSpan.length);
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}
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function last<T>(array: T[]): T {
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return array[array.length - 1];
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}
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function getFirstClassDeclaration(declaration: string) {
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const matches = declaration.match(/(?:export class )(\w+)(?:\s|\{)/);
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if (matches === null || matches.length !== 2) {
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throw new Error(`Did not find exactly one exported class in: ${declaration}`);
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}
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return matches[1].trim();
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}
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export function createModuleWithDeclarations(
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filesWithClassDeclarations: TestFile[],
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externalResourceFiles: TestFile[] = []): LanguageServiceTestEnvironment {
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const externalClasses =
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filesWithClassDeclarations.map(file => getFirstClassDeclaration(file.contents));
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const externalImports = filesWithClassDeclarations.map(file => {
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const className = getFirstClassDeclaration(file.contents);
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const fileName = last(file.name.split('/')).replace('.ts', '');
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return `import {${className}} from './${fileName}';`;
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});
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const contents = `
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import {NgModule} from '@angular/core';
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import {CommonModule} from '@angular/common';
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${externalImports.join('\n')}
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@NgModule({
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declarations: [${externalClasses.join(',')}],
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imports: [CommonModule],
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})
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export class AppModule {}
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`;
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const moduleFile = {name: _('/app-module.ts'), contents, isRoot: true};
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return LanguageServiceTestEnvironment.setup(
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[moduleFile, ...filesWithClassDeclarations, ...externalResourceFiles]);
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}
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export interface HumanizedDefinitionInfo {
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fileName: string;
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textSpan: string;
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contextSpan: string|undefined;
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}
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export function humanizeDefinitionInfo(
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def: ts.DefinitionInfo, host: MockServerHost,
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overrides: Map<string, string> = new Map()): HumanizedDefinitionInfo {
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const contents = (overrides.get(def.fileName) !== undefined ? overrides.get(def.fileName) :
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host.readFile(def.fileName)) ??
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'';
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return {
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fileName: def.fileName,
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textSpan: contents.substr(def.textSpan.start, def.textSpan.start + def.textSpan.length),
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contextSpan: def.contextSpan ?
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contents.substr(def.contextSpan.start, def.contextSpan.start + def.contextSpan.length) :
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undefined,
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};
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}
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