angular-docs-cn/packages/compiler-cli/test/diagnostics/symbol_query_spec.ts

110 lines
3.4 KiB
TypeScript

/**
* @license
* Copyright Google Inc. 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 {StaticSymbol} from '@angular/compiler';
import {CompilerHost} from '@angular/compiler-cli';
import {EmittingCompilerHost, MockAotCompilerHost, MockCompilerHost, MockData, MockDirectory, MockMetadataBundlerHost, arrayToMockDir, arrayToMockMap, isSource, settings, setup, toMockFileArray} from '@angular/compiler/test/aot/test_util';
import * as ts from 'typescript';
import {Symbol, SymbolQuery, SymbolTable} from '../../src/diagnostics/symbols';
import {getSymbolQuery} from '../../src/diagnostics/typescript_symbols';
import {CompilerOptions} from '../../src/transformers/api';
import {Directory} from '../mocks';
import {DiagnosticContext, MockLanguageServiceHost} from './mocks';
function emptyPipes(): SymbolTable {
return {
size: 0,
get(key: string) { return undefined; },
has(key: string) { return false; },
values(): Symbol[]{return [];}
};
}
describe('symbol query', () => {
let program: ts.Program;
let checker: ts.TypeChecker;
let sourceFile: ts.SourceFile;
let query: SymbolQuery;
let context: DiagnosticContext;
beforeEach(() => {
const registry = ts.createDocumentRegistry(false, '/src');
const host = new MockLanguageServiceHost(
['/quickstart/app/app.component.ts'], QUICKSTART, '/quickstart');
const service = ts.createLanguageService(host, registry);
program = service.getProgram();
checker = program.getTypeChecker();
sourceFile = program.getSourceFile('/quickstart/app/app.component.ts');
const options: CompilerOptions = Object.create(host.getCompilationSettings());
options.genDir = '/dist';
options.basePath = '/quickstart';
const aotHost = new CompilerHost(program, options, host, {verboseInvalidExpression: true});
context = new DiagnosticContext(service, program, checker, aotHost);
query = getSymbolQuery(program, checker, sourceFile, emptyPipes);
});
it('should be able to get undefined for an unknown symbol', () => {
const unknownType = context.getStaticSymbol('/unkonwn/file.ts', 'UnknownType');
const symbol = query.getTypeSymbol(unknownType);
expect(symbol).toBeUndefined();
});
});
function appComponentSource(template: string): string {
return `
import {Component} from '@angular/core';
export interface Person {
name: string;
address: Address;
}
export interface Address {
street: string;
city: string;
state: string;
zip: string;
}
@Component({
template: '${template}'
})
export class AppComponent {
name = 'Angular';
person: Person;
people: Person[];
maybePerson?: Person;
getName(): string { return this.name; }
getPerson(): Person { return this.person; }
getMaybePerson(): Person | undefined { this.maybePerson; }
}
`;
}
const QUICKSTART: Directory = {
quickstart: {
app: {
'app.component.ts': appComponentSource('<h1>Hello {{name}}</h1>'),
'app.module.ts': `
import { NgModule } from '@angular/core';
import { toString } from './utils';
import { AppComponent } from './app.component';
@NgModule({
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
`
}
}
};