angular-docs-cn/packages/compiler/test/output/output_jit_spec.ts

65 lines
2.4 KiB
TypeScript
Raw Normal View History

/**
* @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 {EmitterVisitorContext} from '@angular/compiler/src/output/abstract_emitter';
import * as o from '@angular/compiler/src/output/output_ast';
import {JitEmitterVisitor, JitEvaluator} from '@angular/compiler/src/output/output_jit';
import {R3JitReflector} from '@angular/compiler/src/render3/r3_jit';
import {newArray} from '@angular/compiler/src/util';
import {JitReflector} from '@angular/platform-browser-dynamic/src/compiler_reflector';
const anotherModuleUrl = 'somePackage/someOtherPath';
{
describe('Output JIT', () => {
describe('regression', () => {
it('should generate unique argument names', () => {
const externalIds = newArray(10, 1).map(
(_, index) =>
new o.ExternalReference(anotherModuleUrl, `id_${index}_`, {name: `id_${index}_`}));
const externalIds1 = newArray(10, 1).map(
(_, index) => new o.ExternalReference(
anotherModuleUrl, `id_${index}_1`, {name: `id_${index}_1`}));
const ctx = EmitterVisitorContext.createRoot();
const converter = new JitEmitterVisitor(new JitReflector());
converter.visitAllStatements(
[o.literalArr([...externalIds1, ...externalIds].map(id => o.importExpr(id))).toStmt()],
ctx);
const args = converter.getArgs();
expect(Object.keys(args).length).toBe(20);
});
});
it('should use strict mode', () => {
const evaluator = new JitEvaluator();
expect(() => {
evaluator.evaluateStatements(
'http://angular.io/something.ts',
[
// Set an undeclared variable
// foo = "bar";
o.variable('foo').equals(o.literal('bar')).toStmt(),
],
new R3JitReflector({}), false);
}).toThrowError();
});
it('should not add more than one strict mode statement if there is already one present', () => {
const converter = new JitEmitterVisitor(new JitReflector());
const ctx = EmitterVisitorContext.createRoot();
converter.visitAllStatements(
[
o.literal('use strict').toStmt(),
],
ctx);
const matches = ctx.toSource().match(/'use strict';/g) !;
expect(matches.length).toBe(1);
});
});
}