b0b9ca3386
Produces back-patch as described in the #22235 and referenced in #22480. This just contains the compiler implementations and the corresponding unit tests. Connecting the dots as described in #22480 will be in a follow on change. PR Close #22506
47 lines
1.8 KiB
TypeScript
47 lines
1.8 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 {StaticReflector} from '../aot/static_reflector';
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import {CompileDirectiveMetadata, CompileIdentifierMetadata, CompileNgModuleMetadata, CompilePipeSummary, CompileTypeMetadata, identifierName} from '../compile_metadata';
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import {CompileMetadataResolver} from '../metadata_resolver';
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import * as o from '../output/output_ast';
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import {OutputContext} from '../util';
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import {Identifiers as R3} from './r3_identifiers';
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/**
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* Write a Renderer2 compatibility module factory to the output context.
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*/
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export function compileModuleFactory(
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outputCtx: OutputContext, module: CompileNgModuleMetadata,
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backPatchReferenceOf: (module: CompileTypeMetadata) => o.Expression,
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resolver: CompileMetadataResolver) {
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const ngModuleFactoryVar = `${identifierName(module.type)}NgFactory`;
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const parentInjector = 'parentInjector';
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const createFunction = o.fn(
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[new o.FnParam(parentInjector, o.DYNAMIC_TYPE)],
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[new o.IfStmt(
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o.THIS_EXPR.prop(R3.PATCH_DEPS).notIdentical(o.literal(true, o.INFERRED_TYPE)),
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[
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o.THIS_EXPR.prop(R3.PATCH_DEPS).set(o.literal(true, o.INFERRED_TYPE)).toStmt(),
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backPatchReferenceOf(module.type).callFn([]).toStmt()
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])],
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o.INFERRED_TYPE, null, `${ngModuleFactoryVar}_Create`);
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const moduleFactoryLiteral = o.literalMap([
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{key: 'moduleType', value: outputCtx.importExpr(module.type.reference), quoted: false},
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{key: 'create', value: createFunction, quoted: false}
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]);
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outputCtx.statements.push(
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o.variable(ngModuleFactoryVar).set(moduleFactoryLiteral).toDeclStmt(o.DYNAMIC_TYPE, [
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o.StmtModifier.Exported, o.StmtModifier.Final
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]));
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}
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