angular-cn/packages/compiler/test/output/ts_emitter_node_only_spec.ts
Joey Perrott d1ea1f4c7f build: update license headers to reference Google LLC ()
Update the license headers throughout the repository to reference Google LLC
rather than Google Inc, for the required license headers.

PR Close 
2020-05-26 14:26:58 -04:00

57 lines
2.1 KiB
TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {ParseLocation, ParseSourceFile} from '@angular/compiler';
import {StaticSymbol} from '@angular/compiler/src/aot/static_symbol';
import * as o from '@angular/compiler/src/output/output_ast';
import {SourceMap} from '@angular/compiler/src/output/source_map';
import {TypeScriptEmitter} from '@angular/compiler/src/output/ts_emitter';
import {ParseSourceSpan} from '@angular/compiler/src/parse_util';
import {extractSourceMap, originalPositionFor} from '@angular/compiler/testing/src/output/source_map_util';
const someGenFilePath = 'somePackage/someGenFile';
{
// Not supported features of our OutputAst in TS:
// - real `const` like in Dart
// - final fields
describe('TypeScriptEmitter', () => {
let emitter: TypeScriptEmitter;
let someVar: o.ReadVarExpr;
beforeEach(() => {
emitter = new TypeScriptEmitter();
someVar = o.variable('someVar');
});
function emitSourceMap(stmt: o.Statement|o.Statement[], preamble?: string): SourceMap {
const stmts = Array.isArray(stmt) ? stmt : [stmt];
const source = emitter.emitStatements(someGenFilePath, stmts, preamble);
return extractSourceMap(source)!;
}
describe('source maps', () => {
it('should emit an inline source map', () => {
const source = new ParseSourceFile(';;;var', 'in.js');
const startLocation = new ParseLocation(source, 0, 0, 3);
const endLocation = new ParseLocation(source, 7, 0, 6);
const sourceSpan = new ParseSourceSpan(startLocation, endLocation);
const someVar = o.variable('someVar', null, sourceSpan);
const sm = emitSourceMap(someVar.toStmt(), '/* MyPreamble \n */');
expect(sm.sources).toEqual([someGenFilePath, 'in.js']);
expect(sm.sourcesContent).toEqual([' ', ';;;var']);
expect(originalPositionFor(sm, {line: 3, column: 0}))
.toEqual({line: 1, column: 3, source: 'in.js'});
});
});
});
}