6f4e49ed53
Part of #10043 BREAKING CHANGE: - `@Component.precompile` was renamed to `@Component.entryComponents` (old property still works but is deprecated) - `ANALYZE_FOR_PRECOMPILE` was renamed to `ANALYZE_FOR_ENTRY_COMPONENTS` (no deprecations)
626 lines
26 KiB
TypeScript
626 lines
26 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 {ChangeDetectionStrategy, ViewEncapsulation} from '@angular/core';
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import {ChangeDetectorStatus, ViewType, isDefaultChangeDetectionStrategy} from '../../core_private';
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import {AnimationCompiler} from '../animation/animation_compiler';
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import {CompileDirectiveMetadata, CompileIdentifierMetadata, CompileTokenMetadata, CompileTypeMetadata} from '../compile_metadata';
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import {ListWrapper, SetWrapper, StringMapWrapper} from '../facade/collection';
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import {StringWrapper, isPresent} from '../facade/lang';
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import {Identifiers, identifierToken} from '../identifiers';
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import * as o from '../output/output_ast';
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import {AttrAst, BoundDirectivePropertyAst, BoundElementPropertyAst, BoundEventAst, BoundTextAst, DirectiveAst, ElementAst, EmbeddedTemplateAst, NgContentAst, ProviderAst, ReferenceAst, TemplateAst, TemplateAstVisitor, TextAst, VariableAst, templateVisitAll} from '../template_ast';
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import {createDiTokenExpression} from '../util';
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import {CompileElement, CompileNode} from './compile_element';
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import {CompileView} from './compile_view';
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import {ChangeDetectorStatusEnum, DetectChangesVars, InjectMethodVars, ViewConstructorVars, ViewEncapsulationEnum, ViewProperties, ViewTypeEnum} from './constants';
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import {createFlatArray, getViewFactoryName} from './util';
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const IMPLICIT_TEMPLATE_VAR = '\$implicit';
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const CLASS_ATTR = 'class';
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const STYLE_ATTR = 'style';
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const NG_CONTAINER_TAG = 'ng-container';
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var parentRenderNodeVar = o.variable('parentRenderNode');
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var rootSelectorVar = o.variable('rootSelector');
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export class ViewFactoryDependency {
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constructor(
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public comp: CompileIdentifierMetadata, public placeholder: CompileIdentifierMetadata) {}
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}
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export class ComponentFactoryDependency {
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constructor(
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public comp: CompileIdentifierMetadata, public placeholder: CompileIdentifierMetadata) {}
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}
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export function buildView(
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view: CompileView, template: TemplateAst[],
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targetDependencies: Array<ViewFactoryDependency|ComponentFactoryDependency>): number {
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var builderVisitor = new ViewBuilderVisitor(view, targetDependencies);
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templateVisitAll(
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builderVisitor, template,
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view.declarationElement.isNull() ? view.declarationElement : view.declarationElement.parent);
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return builderVisitor.nestedViewCount;
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}
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export function finishView(view: CompileView, targetStatements: o.Statement[]) {
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view.afterNodes();
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createViewTopLevelStmts(view, targetStatements);
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view.nodes.forEach((node) => {
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if (node instanceof CompileElement && node.hasEmbeddedView) {
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finishView(node.embeddedView, targetStatements);
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}
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});
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}
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class ViewBuilderVisitor implements TemplateAstVisitor {
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nestedViewCount: number = 0;
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private _animationCompiler = new AnimationCompiler();
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constructor(
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public view: CompileView,
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public targetDependencies: Array<ViewFactoryDependency|ComponentFactoryDependency>) {}
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private _isRootNode(parent: CompileElement): boolean { return parent.view !== this.view; }
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private _addRootNodeAndProject(node: CompileNode) {
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var projectedNode = _getOuterContainerOrSelf(node);
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var parent = projectedNode.parent;
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var ngContentIndex = (<any>projectedNode.sourceAst).ngContentIndex;
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var vcAppEl =
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(node instanceof CompileElement && node.hasViewContainer) ? node.appElement : null;
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if (this._isRootNode(parent)) {
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// store appElement as root node only for ViewContainers
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if (this.view.viewType !== ViewType.COMPONENT) {
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this.view.rootNodesOrAppElements.push(isPresent(vcAppEl) ? vcAppEl : node.renderNode);
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}
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} else if (isPresent(parent.component) && isPresent(ngContentIndex)) {
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parent.addContentNode(ngContentIndex, isPresent(vcAppEl) ? vcAppEl : node.renderNode);
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}
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}
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private _getParentRenderNode(parent: CompileElement): o.Expression {
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parent = _getOuterContainerParentOrSelf(parent);
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if (this._isRootNode(parent)) {
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if (this.view.viewType === ViewType.COMPONENT) {
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return parentRenderNodeVar;
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} else {
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// root node of an embedded/host view
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return o.NULL_EXPR;
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}
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} else {
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return isPresent(parent.component) &&
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parent.component.template.encapsulation !== ViewEncapsulation.Native ?
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o.NULL_EXPR :
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parent.renderNode;
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}
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}
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visitBoundText(ast: BoundTextAst, parent: CompileElement): any {
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return this._visitText(ast, '', parent);
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}
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visitText(ast: TextAst, parent: CompileElement): any {
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return this._visitText(ast, ast.value, parent);
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}
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private _visitText(ast: TemplateAst, value: string, parent: CompileElement): o.Expression {
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var fieldName = `_text_${this.view.nodes.length}`;
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this.view.fields.push(
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new o.ClassField(fieldName, o.importType(this.view.genConfig.renderTypes.renderText)));
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var renderNode = o.THIS_EXPR.prop(fieldName);
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var compileNode = new CompileNode(parent, this.view, this.view.nodes.length, renderNode, ast);
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var createRenderNode =
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o.THIS_EXPR.prop(fieldName)
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.set(ViewProperties.renderer.callMethod(
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'createText',
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[
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this._getParentRenderNode(parent), o.literal(value),
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this.view.createMethod.resetDebugInfoExpr(this.view.nodes.length, ast)
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]))
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.toStmt();
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this.view.nodes.push(compileNode);
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this.view.createMethod.addStmt(createRenderNode);
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this._addRootNodeAndProject(compileNode);
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return renderNode;
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}
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visitNgContent(ast: NgContentAst, parent: CompileElement): any {
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// the projected nodes originate from a different view, so we don't
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// have debug information for them...
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this.view.createMethod.resetDebugInfo(null, ast);
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var parentRenderNode = this._getParentRenderNode(parent);
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var nodesExpression = ViewProperties.projectableNodes.key(
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o.literal(ast.index),
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new o.ArrayType(o.importType(this.view.genConfig.renderTypes.renderNode)));
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if (parentRenderNode !== o.NULL_EXPR) {
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this.view.createMethod.addStmt(
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ViewProperties.renderer
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.callMethod(
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'projectNodes',
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[
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parentRenderNode,
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o.importExpr(Identifiers.flattenNestedViewRenderNodes).callFn([nodesExpression])
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])
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.toStmt());
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} else if (this._isRootNode(parent)) {
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if (this.view.viewType !== ViewType.COMPONENT) {
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// store root nodes only for embedded/host views
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this.view.rootNodesOrAppElements.push(nodesExpression);
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}
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} else {
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if (isPresent(parent.component) && isPresent(ast.ngContentIndex)) {
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parent.addContentNode(ast.ngContentIndex, nodesExpression);
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}
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}
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return null;
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}
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visitElement(ast: ElementAst, parent: CompileElement): any {
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var nodeIndex = this.view.nodes.length;
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var createRenderNodeExpr: o.InvokeMethodExpr;
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var debugContextExpr = this.view.createMethod.resetDebugInfoExpr(nodeIndex, ast);
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if (nodeIndex === 0 && this.view.viewType === ViewType.HOST) {
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createRenderNodeExpr = o.THIS_EXPR.callMethod(
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'selectOrCreateHostElement', [o.literal(ast.name), rootSelectorVar, debugContextExpr]);
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} else {
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if (ast.name === NG_CONTAINER_TAG) {
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createRenderNodeExpr = ViewProperties.renderer.callMethod(
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'createTemplateAnchor', [this._getParentRenderNode(parent), debugContextExpr]);
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} else {
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createRenderNodeExpr = ViewProperties.renderer.callMethod(
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'createElement',
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[this._getParentRenderNode(parent), o.literal(ast.name), debugContextExpr]);
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}
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}
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var fieldName = `_el_${nodeIndex}`;
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this.view.fields.push(
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new o.ClassField(fieldName, o.importType(this.view.genConfig.renderTypes.renderElement)));
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this.view.createMethod.addStmt(o.THIS_EXPR.prop(fieldName).set(createRenderNodeExpr).toStmt());
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var renderNode = o.THIS_EXPR.prop(fieldName);
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var directives = ast.directives.map(directiveAst => directiveAst.directive);
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var component = directives.find(directive => directive.isComponent);
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var htmlAttrs = _readHtmlAttrs(ast.attrs);
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var attrNameAndValues = _mergeHtmlAndDirectiveAttrs(htmlAttrs, directives);
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for (var i = 0; i < attrNameAndValues.length; i++) {
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var attrName = attrNameAndValues[i][0];
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var attrValue = attrNameAndValues[i][1];
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this.view.createMethod.addStmt(
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ViewProperties.renderer
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.callMethod(
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'setElementAttribute', [renderNode, o.literal(attrName), o.literal(attrValue)])
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.toStmt());
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}
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var compileElement = new CompileElement(
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parent, this.view, nodeIndex, renderNode, ast, component, directives, ast.providers,
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ast.hasViewContainer, false, ast.references);
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this.view.nodes.push(compileElement);
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var compViewExpr: o.ReadVarExpr = null;
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if (isPresent(component)) {
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let nestedComponentIdentifier =
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new CompileIdentifierMetadata({name: getViewFactoryName(component, 0)});
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this.targetDependencies.push(
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new ViewFactoryDependency(component.type, nestedComponentIdentifier));
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let entryComponentIdentifiers =
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component.entryComponents.map((entryComponent: CompileIdentifierMetadata) => {
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var id = new CompileIdentifierMetadata({name: entryComponent.name});
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this.targetDependencies.push(new ComponentFactoryDependency(entryComponent, id));
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return id;
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});
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compileElement.createComponentFactoryResolver(entryComponentIdentifiers);
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compViewExpr = o.variable(`compView_${nodeIndex}`); // fix highlighting: `
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compileElement.setComponentView(compViewExpr);
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this.view.createMethod.addStmt(
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compViewExpr
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.set(o.importExpr(nestedComponentIdentifier).callFn([
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ViewProperties.viewUtils, compileElement.injector, compileElement.appElement
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]))
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.toDeclStmt());
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}
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compileElement.beforeChildren();
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this._addRootNodeAndProject(compileElement);
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templateVisitAll(this, ast.children, compileElement);
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compileElement.afterChildren(this.view.nodes.length - nodeIndex - 1);
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if (isPresent(compViewExpr)) {
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var codeGenContentNodes: o.Expression;
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if (this.view.component.type.isHost) {
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codeGenContentNodes = ViewProperties.projectableNodes;
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} else {
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codeGenContentNodes = o.literalArr(
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compileElement.contentNodesByNgContentIndex.map(nodes => createFlatArray(nodes)));
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}
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this.view.createMethod.addStmt(
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compViewExpr
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.callMethod(
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'create', [compileElement.getComponent(), codeGenContentNodes, o.NULL_EXPR])
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.toStmt());
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}
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return null;
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}
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visitEmbeddedTemplate(ast: EmbeddedTemplateAst, parent: CompileElement): any {
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var nodeIndex = this.view.nodes.length;
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var fieldName = `_anchor_${nodeIndex}`;
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this.view.fields.push(
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new o.ClassField(fieldName, o.importType(this.view.genConfig.renderTypes.renderComment)));
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this.view.createMethod.addStmt(
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o.THIS_EXPR.prop(fieldName)
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.set(ViewProperties.renderer.callMethod(
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'createTemplateAnchor',
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[
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this._getParentRenderNode(parent),
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this.view.createMethod.resetDebugInfoExpr(nodeIndex, ast)
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]))
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.toStmt());
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var renderNode = o.THIS_EXPR.prop(fieldName);
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var templateVariableBindings = ast.variables.map(
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varAst => [varAst.value.length > 0 ? varAst.value : IMPLICIT_TEMPLATE_VAR, varAst.name]);
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var directives = ast.directives.map(directiveAst => directiveAst.directive);
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var compileElement = new CompileElement(
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parent, this.view, nodeIndex, renderNode, ast, null, directives, ast.providers,
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ast.hasViewContainer, true, ast.references);
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this.view.nodes.push(compileElement);
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var compiledAnimations = this._animationCompiler.compileComponent(this.view.component, [ast]);
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this.nestedViewCount++;
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var embeddedView = new CompileView(
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this.view.component, this.view.genConfig, this.view.pipeMetas, o.NULL_EXPR,
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compiledAnimations, this.view.viewIndex + this.nestedViewCount, compileElement,
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templateVariableBindings);
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this.nestedViewCount += buildView(embeddedView, ast.children, this.targetDependencies);
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compileElement.beforeChildren();
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this._addRootNodeAndProject(compileElement);
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compileElement.afterChildren(0);
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return null;
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}
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visitAttr(ast: AttrAst, ctx: any): any { return null; }
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visitDirective(ast: DirectiveAst, ctx: any): any { return null; }
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visitEvent(ast: BoundEventAst, eventTargetAndNames: Map<string, BoundEventAst>): any {
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return null;
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}
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visitReference(ast: ReferenceAst, ctx: any): any { return null; }
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visitVariable(ast: VariableAst, ctx: any): any { return null; }
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visitDirectiveProperty(ast: BoundDirectivePropertyAst, context: any): any { return null; }
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visitElementProperty(ast: BoundElementPropertyAst, context: any): any { return null; }
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}
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/**
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* Walks up the nodes while the direct parent is a container.
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*
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* Returns the outer container or the node itself when it is not a direct child of a container.
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*
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* @internal
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*/
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function _getOuterContainerOrSelf(node: CompileNode): CompileNode {
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const view = node.view;
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while (_isNgContainer(node.parent, view)) {
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node = node.parent;
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}
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return node;
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}
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/**
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* Walks up the nodes while they are container and returns the first parent which is not.
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*
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* Returns the parent of the outer container or the node itself when it is not a container.
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*
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* @internal
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*/
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function _getOuterContainerParentOrSelf(el: CompileElement): CompileElement {
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const view = el.view;
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while (_isNgContainer(el, view)) {
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el = el.parent;
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}
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return el;
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}
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function _isNgContainer(node: CompileNode, view: CompileView): boolean {
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return !node.isNull() && (<ElementAst>node.sourceAst).name === NG_CONTAINER_TAG &&
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node.view === view;
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}
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function _mergeHtmlAndDirectiveAttrs(
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declaredHtmlAttrs: {[key: string]: string},
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directives: CompileDirectiveMetadata[]): string[][] {
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var result: {[key: string]: string} = {};
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StringMapWrapper.forEach(
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declaredHtmlAttrs, (value: string, key: string) => { result[key] = value; });
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directives.forEach(directiveMeta => {
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StringMapWrapper.forEach(directiveMeta.hostAttributes, (value: string, name: string) => {
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var prevValue = result[name];
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result[name] = isPresent(prevValue) ? mergeAttributeValue(name, prevValue, value) : value;
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});
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});
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return mapToKeyValueArray(result);
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}
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function _readHtmlAttrs(attrs: AttrAst[]): {[key: string]: string} {
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var htmlAttrs: {[key: string]: string} = {};
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attrs.forEach((ast) => { htmlAttrs[ast.name] = ast.value; });
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return htmlAttrs;
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}
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function mergeAttributeValue(attrName: string, attrValue1: string, attrValue2: string): string {
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if (attrName == CLASS_ATTR || attrName == STYLE_ATTR) {
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return `${attrValue1} ${attrValue2}`;
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} else {
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return attrValue2;
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}
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}
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function mapToKeyValueArray(data: {[key: string]: string}): string[][] {
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var entryArray: string[][] = [];
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StringMapWrapper.forEach(data, (value: string, name: string) => {
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entryArray.push([name, value]);
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});
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// We need to sort to get a defined output order
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// for tests and for caching generated artifacts...
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ListWrapper.sort(entryArray, (entry1, entry2) => StringWrapper.compare(entry1[0], entry2[0]));
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return entryArray;
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}
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function createViewTopLevelStmts(view: CompileView, targetStatements: o.Statement[]) {
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var nodeDebugInfosVar: o.Expression = o.NULL_EXPR;
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if (view.genConfig.genDebugInfo) {
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nodeDebugInfosVar = o.variable(
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`nodeDebugInfos_${view.component.type.name}${view.viewIndex}`); // fix highlighting: `
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targetStatements.push(
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(<o.ReadVarExpr>nodeDebugInfosVar)
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.set(o.literalArr(
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view.nodes.map(createStaticNodeDebugInfo),
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new o.ArrayType(
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new o.ExternalType(Identifiers.StaticNodeDebugInfo), [o.TypeModifier.Const])))
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.toDeclStmt(null, [o.StmtModifier.Final]));
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}
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var renderCompTypeVar: o.ReadVarExpr =
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o.variable(`renderType_${view.component.type.name}`); // fix highlighting: `
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if (view.viewIndex === 0) {
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targetStatements.push(renderCompTypeVar.set(o.NULL_EXPR)
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.toDeclStmt(o.importType(Identifiers.RenderComponentType)));
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}
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var viewClass = createViewClass(view, renderCompTypeVar, nodeDebugInfosVar);
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targetStatements.push(viewClass);
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targetStatements.push(createViewFactory(view, viewClass, renderCompTypeVar));
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}
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function createStaticNodeDebugInfo(node: CompileNode): o.Expression {
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var compileElement = node instanceof CompileElement ? node : null;
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var providerTokens: o.Expression[] = [];
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var componentToken: o.Expression = o.NULL_EXPR;
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var varTokenEntries: any[] = [];
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if (isPresent(compileElement)) {
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providerTokens = compileElement.getProviderTokens();
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if (isPresent(compileElement.component)) {
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componentToken = createDiTokenExpression(identifierToken(compileElement.component.type));
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}
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StringMapWrapper.forEach(
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compileElement.referenceTokens, (token: CompileTokenMetadata, varName: string) => {
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varTokenEntries.push(
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[varName, isPresent(token) ? createDiTokenExpression(token) : o.NULL_EXPR]);
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});
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}
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return o.importExpr(Identifiers.StaticNodeDebugInfo)
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.instantiate(
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[
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o.literalArr(providerTokens, new o.ArrayType(o.DYNAMIC_TYPE, [o.TypeModifier.Const])),
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componentToken,
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o.literalMap(varTokenEntries, new o.MapType(o.DYNAMIC_TYPE, [o.TypeModifier.Const]))
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],
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o.importType(Identifiers.StaticNodeDebugInfo, null, [o.TypeModifier.Const]));
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}
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function createViewClass(
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view: CompileView, renderCompTypeVar: o.ReadVarExpr,
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nodeDebugInfosVar: o.Expression): o.ClassStmt {
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var viewConstructorArgs = [
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new o.FnParam(ViewConstructorVars.viewUtils.name, o.importType(Identifiers.ViewUtils)),
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new o.FnParam(ViewConstructorVars.parentInjector.name, o.importType(Identifiers.Injector)),
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new o.FnParam(ViewConstructorVars.declarationEl.name, o.importType(Identifiers.AppElement))
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];
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var superConstructorArgs = [
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o.variable(view.className), renderCompTypeVar, ViewTypeEnum.fromValue(view.viewType),
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ViewConstructorVars.viewUtils, ViewConstructorVars.parentInjector,
|
|
ViewConstructorVars.declarationEl,
|
|
ChangeDetectorStatusEnum.fromValue(getChangeDetectionMode(view))
|
|
];
|
|
if (view.genConfig.genDebugInfo) {
|
|
superConstructorArgs.push(nodeDebugInfosVar);
|
|
}
|
|
var viewConstructor = new o.ClassMethod(
|
|
null, viewConstructorArgs, [o.SUPER_EXPR.callFn(superConstructorArgs).toStmt()]);
|
|
|
|
var viewMethods = [
|
|
new o.ClassMethod(
|
|
'createInternal', [new o.FnParam(rootSelectorVar.name, o.STRING_TYPE)],
|
|
generateCreateMethod(view), o.importType(Identifiers.AppElement)),
|
|
new o.ClassMethod(
|
|
'injectorGetInternal',
|
|
[
|
|
new o.FnParam(InjectMethodVars.token.name, o.DYNAMIC_TYPE),
|
|
// Note: Can't use o.INT_TYPE here as the method in AppView uses number
|
|
new o.FnParam(InjectMethodVars.requestNodeIndex.name, o.NUMBER_TYPE),
|
|
new o.FnParam(InjectMethodVars.notFoundResult.name, o.DYNAMIC_TYPE)
|
|
],
|
|
addReturnValuefNotEmpty(view.injectorGetMethod.finish(), InjectMethodVars.notFoundResult),
|
|
o.DYNAMIC_TYPE),
|
|
new o.ClassMethod(
|
|
'detectChangesInternal', [new o.FnParam(DetectChangesVars.throwOnChange.name, o.BOOL_TYPE)],
|
|
generateDetectChangesMethod(view)),
|
|
new o.ClassMethod('dirtyParentQueriesInternal', [], view.dirtyParentQueriesMethod.finish()),
|
|
new o.ClassMethod('destroyInternal', [], view.destroyMethod.finish()),
|
|
new o.ClassMethod('detachInternal', [], view.detachMethod.finish())
|
|
].concat(view.eventHandlerMethods);
|
|
var superClass = view.genConfig.genDebugInfo ? Identifiers.DebugAppView : Identifiers.AppView;
|
|
var viewClass = new o.ClassStmt(
|
|
view.className, o.importExpr(superClass, [getContextType(view)]), view.fields, view.getters,
|
|
viewConstructor, viewMethods.filter((method) => method.body.length > 0));
|
|
return viewClass;
|
|
}
|
|
|
|
function createViewFactory(
|
|
view: CompileView, viewClass: o.ClassStmt, renderCompTypeVar: o.ReadVarExpr): o.Statement {
|
|
var viewFactoryArgs = [
|
|
new o.FnParam(ViewConstructorVars.viewUtils.name, o.importType(Identifiers.ViewUtils)),
|
|
new o.FnParam(ViewConstructorVars.parentInjector.name, o.importType(Identifiers.Injector)),
|
|
new o.FnParam(ViewConstructorVars.declarationEl.name, o.importType(Identifiers.AppElement))
|
|
];
|
|
var initRenderCompTypeStmts: any[] = [];
|
|
var templateUrlInfo: string;
|
|
if (view.component.template.templateUrl == view.component.type.moduleUrl) {
|
|
templateUrlInfo =
|
|
`${view.component.type.moduleUrl} class ${view.component.type.name} - inline template`;
|
|
} else {
|
|
templateUrlInfo = view.component.template.templateUrl;
|
|
}
|
|
if (view.viewIndex === 0) {
|
|
var animationsExpr = o.literalMap(view.animations.map(entry => [entry.name, entry.fnVariable]));
|
|
initRenderCompTypeStmts = [new o.IfStmt(renderCompTypeVar.identical(o.NULL_EXPR), [
|
|
renderCompTypeVar
|
|
.set(ViewConstructorVars.viewUtils.callMethod(
|
|
'createRenderComponentType',
|
|
[
|
|
o.literal(templateUrlInfo),
|
|
o.literal(view.component.template.ngContentSelectors.length),
|
|
ViewEncapsulationEnum.fromValue(view.component.template.encapsulation), view.styles,
|
|
animationsExpr
|
|
]))
|
|
.toStmt()
|
|
])];
|
|
}
|
|
return o
|
|
.fn(viewFactoryArgs, initRenderCompTypeStmts.concat([new o.ReturnStatement(
|
|
o.variable(viewClass.name)
|
|
.instantiate(viewClass.constructorMethod.params.map(
|
|
(param) => o.variable(param.name))))]),
|
|
o.importType(Identifiers.AppView, [getContextType(view)]))
|
|
.toDeclStmt(view.viewFactory.name, [o.StmtModifier.Final]);
|
|
}
|
|
|
|
function generateCreateMethod(view: CompileView): o.Statement[] {
|
|
var parentRenderNodeExpr: o.Expression = o.NULL_EXPR;
|
|
var parentRenderNodeStmts: any[] = [];
|
|
if (view.viewType === ViewType.COMPONENT) {
|
|
parentRenderNodeExpr = ViewProperties.renderer.callMethod(
|
|
'createViewRoot', [o.THIS_EXPR.prop('declarationAppElement').prop('nativeElement')]);
|
|
parentRenderNodeStmts =
|
|
[parentRenderNodeVar.set(parentRenderNodeExpr)
|
|
.toDeclStmt(
|
|
o.importType(view.genConfig.renderTypes.renderNode), [o.StmtModifier.Final])];
|
|
}
|
|
var resultExpr: o.Expression;
|
|
if (view.viewType === ViewType.HOST) {
|
|
resultExpr = (<CompileElement>view.nodes[0]).appElement;
|
|
} else {
|
|
resultExpr = o.NULL_EXPR;
|
|
}
|
|
return parentRenderNodeStmts.concat(view.createMethod.finish(), [
|
|
o.THIS_EXPR
|
|
.callMethod(
|
|
'init',
|
|
[
|
|
createFlatArray(view.rootNodesOrAppElements),
|
|
o.literalArr(view.nodes.map(node => node.renderNode)), o.literalArr(view.disposables),
|
|
o.literalArr(view.subscriptions)
|
|
])
|
|
.toStmt(),
|
|
new o.ReturnStatement(resultExpr)
|
|
]);
|
|
}
|
|
|
|
function generateDetectChangesMethod(view: CompileView): o.Statement[] {
|
|
var stmts: any[] = [];
|
|
if (view.detectChangesInInputsMethod.isEmpty() && view.updateContentQueriesMethod.isEmpty() &&
|
|
view.afterContentLifecycleCallbacksMethod.isEmpty() &&
|
|
view.detectChangesRenderPropertiesMethod.isEmpty() &&
|
|
view.updateViewQueriesMethod.isEmpty() && view.afterViewLifecycleCallbacksMethod.isEmpty()) {
|
|
return stmts;
|
|
}
|
|
ListWrapper.addAll(stmts, view.detectChangesInInputsMethod.finish());
|
|
stmts.push(
|
|
o.THIS_EXPR.callMethod('detectContentChildrenChanges', [DetectChangesVars.throwOnChange])
|
|
.toStmt());
|
|
var afterContentStmts = view.updateContentQueriesMethod.finish().concat(
|
|
view.afterContentLifecycleCallbacksMethod.finish());
|
|
if (afterContentStmts.length > 0) {
|
|
stmts.push(new o.IfStmt(o.not(DetectChangesVars.throwOnChange), afterContentStmts));
|
|
}
|
|
ListWrapper.addAll(stmts, view.detectChangesRenderPropertiesMethod.finish());
|
|
stmts.push(o.THIS_EXPR.callMethod('detectViewChildrenChanges', [DetectChangesVars.throwOnChange])
|
|
.toStmt());
|
|
var afterViewStmts =
|
|
view.updateViewQueriesMethod.finish().concat(view.afterViewLifecycleCallbacksMethod.finish());
|
|
if (afterViewStmts.length > 0) {
|
|
stmts.push(new o.IfStmt(o.not(DetectChangesVars.throwOnChange), afterViewStmts));
|
|
}
|
|
|
|
var varStmts: any[] = [];
|
|
var readVars = o.findReadVarNames(stmts);
|
|
if (SetWrapper.has(readVars, DetectChangesVars.changed.name)) {
|
|
varStmts.push(DetectChangesVars.changed.set(o.literal(true)).toDeclStmt(o.BOOL_TYPE));
|
|
}
|
|
if (SetWrapper.has(readVars, DetectChangesVars.changes.name)) {
|
|
varStmts.push(DetectChangesVars.changes.set(o.NULL_EXPR)
|
|
.toDeclStmt(new o.MapType(o.importType(Identifiers.SimpleChange))));
|
|
}
|
|
if (SetWrapper.has(readVars, DetectChangesVars.valUnwrapper.name)) {
|
|
varStmts.push(
|
|
DetectChangesVars.valUnwrapper.set(o.importExpr(Identifiers.ValueUnwrapper).instantiate([]))
|
|
.toDeclStmt(null, [o.StmtModifier.Final]));
|
|
}
|
|
return varStmts.concat(stmts);
|
|
}
|
|
|
|
function addReturnValuefNotEmpty(statements: o.Statement[], value: o.Expression): o.Statement[] {
|
|
if (statements.length > 0) {
|
|
return statements.concat([new o.ReturnStatement(value)]);
|
|
} else {
|
|
return statements;
|
|
}
|
|
}
|
|
|
|
function getContextType(view: CompileView): o.Type {
|
|
if (view.viewType === ViewType.COMPONENT) {
|
|
return o.importType(view.component.type);
|
|
}
|
|
return o.DYNAMIC_TYPE;
|
|
}
|
|
|
|
function getChangeDetectionMode(view: CompileView): ChangeDetectorStatus {
|
|
var mode: ChangeDetectorStatus;
|
|
if (view.viewType === ViewType.COMPONENT) {
|
|
mode = isDefaultChangeDetectionStrategy(view.component.changeDetection) ?
|
|
ChangeDetectorStatus.CheckAlways :
|
|
ChangeDetectorStatus.CheckOnce;
|
|
} else {
|
|
mode = ChangeDetectorStatus.CheckAlways;
|
|
}
|
|
return mode;
|
|
}
|