87 lines
3.7 KiB
TypeScript
87 lines
3.7 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC 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 {CompileNgModuleMetadata, CompileProviderMetadata, identifierName} from './compile_metadata';
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import {CompileReflector} from './compile_reflector';
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import {NodeFlags} from './core';
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import {Identifiers} from './identifiers';
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import * as o from './output/output_ast';
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import {typeSourceSpan} from './parse_util';
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import {NgModuleProviderAnalyzer} from './provider_analyzer';
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import {OutputContext} from './util';
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import {componentFactoryResolverProviderDef, depDef, providerDef} from './view_compiler/provider_compiler';
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export class NgModuleCompileResult {
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constructor(public ngModuleFactoryVar: string) {}
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}
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const LOG_VAR = o.variable('_l');
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export class NgModuleCompiler {
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constructor(private reflector: CompileReflector) {}
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compile(
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ctx: OutputContext, ngModuleMeta: CompileNgModuleMetadata,
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extraProviders: CompileProviderMetadata[]): NgModuleCompileResult {
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const sourceSpan = typeSourceSpan('NgModule', ngModuleMeta.type);
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const entryComponentFactories = ngModuleMeta.transitiveModule.entryComponents;
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const bootstrapComponents = ngModuleMeta.bootstrapComponents;
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const providerParser =
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new NgModuleProviderAnalyzer(this.reflector, ngModuleMeta, extraProviders, sourceSpan);
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const providerDefs =
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[componentFactoryResolverProviderDef(
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this.reflector, ctx, NodeFlags.None, entryComponentFactories)]
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.concat(providerParser.parse().map((provider) => providerDef(ctx, provider)))
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.map(({providerExpr, depsExpr, flags, tokenExpr}) => {
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return o.importExpr(Identifiers.moduleProviderDef).callFn([
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o.literal(flags), tokenExpr, providerExpr, depsExpr
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]);
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});
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const ngModuleDef = o.importExpr(Identifiers.moduleDef).callFn([o.literalArr(providerDefs)]);
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const ngModuleDefFactory =
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o.fn([new o.FnParam(LOG_VAR.name!)], [new o.ReturnStatement(ngModuleDef)], o.INFERRED_TYPE);
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const ngModuleFactoryVar = `${identifierName(ngModuleMeta.type)}NgFactory`;
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this._createNgModuleFactory(
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ctx, ngModuleMeta.type.reference, o.importExpr(Identifiers.createModuleFactory).callFn([
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ctx.importExpr(ngModuleMeta.type.reference),
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o.literalArr(bootstrapComponents.map(id => ctx.importExpr(id.reference))),
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ngModuleDefFactory
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]));
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if (ngModuleMeta.id) {
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const id = typeof ngModuleMeta.id === 'string' ? o.literal(ngModuleMeta.id) :
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ctx.importExpr(ngModuleMeta.id);
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const registerFactoryStmt = o.importExpr(Identifiers.RegisterModuleFactoryFn)
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.callFn([id, o.variable(ngModuleFactoryVar)])
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.toStmt();
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ctx.statements.push(registerFactoryStmt);
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}
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return new NgModuleCompileResult(ngModuleFactoryVar);
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}
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createStub(ctx: OutputContext, ngModuleReference: any) {
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this._createNgModuleFactory(ctx, ngModuleReference, o.NULL_EXPR);
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}
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private _createNgModuleFactory(ctx: OutputContext, reference: any, value: o.Expression) {
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const ngModuleFactoryVar = `${identifierName({reference: reference})}NgFactory`;
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const ngModuleFactoryStmt =
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o.variable(ngModuleFactoryVar)
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.set(value)
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.toDeclStmt(
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o.importType(
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Identifiers.NgModuleFactory, [o.expressionType(ctx.importExpr(reference))!],
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[o.TypeModifier.Const]),
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[o.StmtModifier.Final, o.StmtModifier.Exported]);
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ctx.statements.push(ngModuleFactoryStmt);
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}
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}
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