06e36e5972
Previously, ngcc's `Renderer` would add some constants in the processed files which were emitted as ES2015 code (e.g. `const` declarations). This would result in invalid ES5 generated code that would break when run on browsers that do not support the emitted format. This commit fixes it by adding a `printStatement()` method to `RenderingFormatter`, which can convert statements to JavaScript code in a suitable format for the corresponding `RenderingFormatter`. Additionally, the `translateExpression()` and `translateStatement()` ngtsc helper methods are augmented to accept an extra hint to know whether the code needs to be translated to ES5 format or not. Fixes #32665 PR Close #33514
51 lines
2.3 KiB
TypeScript
51 lines
2.3 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 {Statement} from '@angular/compiler';
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import MagicString from 'magic-string';
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import * as ts from 'typescript';
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import {Reexport} from '../../../src/ngtsc/imports';
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import {Import, ImportManager} from '../../../src/ngtsc/translator';
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import {ExportInfo} from '../analysis/private_declarations_analyzer';
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import {CompiledClass} from '../analysis/types';
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import {SwitchableVariableDeclaration} from '../host/ngcc_host';
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import {ModuleWithProvidersInfo} from '../analysis/module_with_providers_analyzer';
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/**
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* The collected decorators that have become redundant after the compilation
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* of Ivy static fields. The map is keyed by the container node, such that we
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* can tell if we should remove the entire decorator property
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*/
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export type RedundantDecoratorMap = Map<ts.Node, ts.Node[]>;
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export const RedundantDecoratorMap = Map;
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/**
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* Implement this interface with methods that know how to render a specific format,
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* such as ESM5 or UMD.
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*/
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export interface RenderingFormatter {
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addConstants(output: MagicString, constants: string, file: ts.SourceFile): void;
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addImports(output: MagicString, imports: Import[], sf: ts.SourceFile): void;
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addExports(
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output: MagicString, entryPointBasePath: string, exports: ExportInfo[],
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importManager: ImportManager, file: ts.SourceFile): void;
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addDirectExports(
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output: MagicString, exports: Reexport[], importManager: ImportManager,
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file: ts.SourceFile): void;
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addDefinitions(output: MagicString, compiledClass: CompiledClass, definitions: string): void;
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addAdjacentStatements(output: MagicString, compiledClass: CompiledClass, statements: string):
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void;
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removeDecorators(output: MagicString, decoratorsToRemove: RedundantDecoratorMap): void;
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rewriteSwitchableDeclarations(
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outputText: MagicString, sourceFile: ts.SourceFile,
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declarations: SwitchableVariableDeclaration[]): void;
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addModuleWithProvidersParams(
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outputText: MagicString, moduleWithProviders: ModuleWithProvidersInfo[],
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importManager: ImportManager): void;
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printStatement(stmt: Statement, sourceFile: ts.SourceFile, importManager: ImportManager): string;
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}
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