Tobias Bosch b0a03fcab3 refactor(compiler): introduce directive wrappers to generate less code
- for now only wraps the `@Input` properties and calls
  to `ngOnInit`, `ngDoCheck` and `ngOnChanges` of directives.
- also groups eval sources by NgModule.

Part of #11683
2016-10-20 10:41:43 -07:00

56 lines
2.1 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 {Injectable} from '@angular/core';
import {AnimationEntryCompileResult} from '../animation/animation_compiler';
import {CompileDirectiveMetadata, CompilePipeMetadata} from '../compile_metadata';
import {CompilerConfig} from '../config';
import * as o from '../output/output_ast';
import {TemplateAst} from '../template_parser/template_ast';
import {CompileElement} from './compile_element';
import {CompileView} from './compile_view';
import {ComponentFactoryDependency, DirectiveWrapperDependency, ViewFactoryDependency} from './deps';
import {bindView} from './view_binder';
import {buildView, finishView} from './view_builder';
export {ComponentFactoryDependency, DirectiveWrapperDependency, ViewFactoryDependency} from './deps';
export class ViewCompileResult {
constructor(
public statements: o.Statement[], public viewFactoryVar: string,
public dependencies:
Array<ViewFactoryDependency|ComponentFactoryDependency|DirectiveWrapperDependency>) {}
}
@Injectable()
export class ViewCompiler {
constructor(private _genConfig: CompilerConfig) {}
compileComponent(
component: CompileDirectiveMetadata, template: TemplateAst[], styles: o.Expression,
pipes: CompilePipeMetadata[],
compiledAnimations: AnimationEntryCompileResult[]): ViewCompileResult {
const dependencies:
Array<ViewFactoryDependency|ComponentFactoryDependency|DirectiveWrapperDependency> = [];
const view = new CompileView(
component, this._genConfig, pipes, styles, compiledAnimations, 0,
CompileElement.createNull(), []);
const statements: o.Statement[] = [];
buildView(view, template, dependencies);
// Need to separate binding from creation to be able to refer to
// variables that have been declared after usage.
bindView(view, template);
finishView(view, statements);
return new ViewCompileResult(statements, view.viewFactory.name, dependencies);
}
}