01f711281c
This is important to not confuse users nor downstream tools that consume our source maps. For generated content for which we don’t have an original source file, we use the generated file now. Fixes #19538
50 lines
2.0 KiB
TypeScript
50 lines
2.0 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. 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 {StaticSymbol} from '@angular/compiler/src/aot/static_symbol';
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import {CompileIdentifierMetadata} from '@angular/compiler/src/compile_metadata';
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import {JavaScriptEmitter} from '@angular/compiler/src/output/js_emitter';
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import * as o from '@angular/compiler/src/output/output_ast';
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import {SourceMap} from '@angular/compiler/src/output/source_map';
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import {ParseLocation, ParseSourceFile, ParseSourceSpan} from '@angular/compiler/src/parse_util';
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import {extractSourceMap, originalPositionFor} from './source_map_util';
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const someGenFilePath = 'somePackage/someGenFile';
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export function main() {
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describe('JavaScriptEmitter', () => {
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let emitter: JavaScriptEmitter;
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let someVar: o.ReadVarExpr;
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beforeEach(() => { emitter = new JavaScriptEmitter(); });
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function emitSourceMap(stmt: o.Statement | o.Statement[], preamble?: string): SourceMap {
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const stmts = Array.isArray(stmt) ? stmt : [stmt];
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const source = emitter.emitStatements(someGenFilePath, stmts, preamble);
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return extractSourceMap(source) !;
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}
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describe('source maps', () => {
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it('should emit an inline source map', () => {
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const source = new ParseSourceFile(';;;var', 'in.js');
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const startLocation = new ParseLocation(source, 0, 0, 3);
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const endLocation = new ParseLocation(source, 7, 0, 6);
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const sourceSpan = new ParseSourceSpan(startLocation, endLocation);
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const someVar = o.variable('someVar', null, sourceSpan);
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const sm = emitSourceMap(someVar.toStmt(), '/* MyPreamble \n */');
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expect(sm.sources).toEqual([someGenFilePath, 'in.js']);
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expect(sm.sourcesContent).toEqual([' ', ';;;var']);
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expect(originalPositionFor(sm, {line: 3, column: 0}))
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.toEqual({line: 1, column: 3, source: 'in.js'});
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});
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});
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});
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}
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