f802194c18
Also have a new node type for queries. This leads to less memory usage and better performance. Deep Tree Benchmark results (depth 11): - createAndDestroy (view engine vs current codegen): * pureScriptTime: 78.80+-4% vs 72.34+-4% * scriptTime: 78.80+-4% vs 90.71+-9% * gc: 5371.66+-108% vs 9717.53+-174% * i.e. faster when gc is also considered and about 2x less memory usage! - update unchanged Part of #14013 PR Close #14120
97 lines
3.5 KiB
TypeScript
97 lines
3.5 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 {NgIf} from '@angular/common';
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import {Component, NgModule, TemplateRef, ViewContainerRef, ViewEncapsulation} from '@angular/core';
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import {BindingType, DefaultServices, NodeFlags, NodeUpdater, ViewData, ViewDefinition, ViewFlags, anchorDef, asElementData, asProviderData, checkAndUpdateView, createRootView, elementDef, providerDef, textDef, viewDef} from '@angular/core/src/view/index';
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import {DomSanitizer, DomSanitizerImpl, SafeStyle} from '@angular/platform-browser/src/security/dom_sanitization_service';
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import {TreeNode, emptyTree} from '../util';
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let trustedEmptyColor: SafeStyle;
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let trustedGreyColor: SafeStyle;
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export class TreeComponent {
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data: TreeNode = emptyTree;
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get bgColor() { return this.data.depth % 2 ? trustedEmptyColor : trustedGreyColor; }
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}
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let viewFlags = ViewFlags.DirectDom;
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const TreeComponent_Host: ViewDefinition = viewDef(viewFlags, [
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elementDef(NodeFlags.None, null, 1, 'tree'),
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providerDef(NodeFlags.None, null, 0, TreeComponent, [], null, null, () => TreeComponent_0),
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]);
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const TreeComponent_1: ViewDefinition = viewDef(
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viewFlags,
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[
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elementDef(NodeFlags.None, null, 1, 'tree'),
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providerDef(
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NodeFlags.None, null, 0, TreeComponent, [], {data: [0, 'data']}, null,
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() => TreeComponent_0),
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],
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(updater: NodeUpdater, view: ViewData) => {
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const cmp = view.component;
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updater.checkInline(view, 1, cmp.data.left);
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});
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const TreeComponent_2: ViewDefinition = viewDef(
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viewFlags,
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[
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elementDef(NodeFlags.None, null, 1, 'tree'),
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providerDef(
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NodeFlags.None, null, 0, TreeComponent, [], {data: [0, 'data']}, null,
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() => TreeComponent_0),
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],
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(updater: NodeUpdater, view: ViewData) => {
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const cmp = view.component;
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updater.checkInline(view, 1, cmp.data.right);
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});
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const TreeComponent_0: ViewDefinition = viewDef(
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viewFlags,
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[
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elementDef(
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NodeFlags.None, null, 1, 'span', null,
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[[BindingType.ElementStyle, 'backgroundColor', null]]),
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textDef([' ', ' ']),
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anchorDef(NodeFlags.HasEmbeddedViews, null, 1, TreeComponent_1),
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providerDef(
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NodeFlags.None, null, 0, NgIf, [ViewContainerRef, TemplateRef], {ngIf: [0, 'ngIf']}),
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anchorDef(NodeFlags.HasEmbeddedViews, null, 1, TreeComponent_2),
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providerDef(
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NodeFlags.None, null, 0, NgIf, [ViewContainerRef, TemplateRef], {ngIf: [0, 'ngIf']}),
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],
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(updater: NodeUpdater, view: ViewData) => {
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const cmp = view.component;
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updater.checkInline(view, 0, cmp.bgColor);
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updater.checkInline(view, 1, cmp.data.value);
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updater.checkInline(view, 3, cmp.data.left != null);
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updater.checkInline(view, 5, cmp.data.right != null);
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});
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export class AppModule {
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public rootComp: TreeComponent;
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public rootEl: any;
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private rootView: ViewData;
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private sanitizer: DomSanitizer;
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constructor() {
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this.sanitizer = new DomSanitizerImpl();
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trustedEmptyColor = this.sanitizer.bypassSecurityTrustStyle('');
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trustedGreyColor = this.sanitizer.bypassSecurityTrustStyle('grey');
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}
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bootstrap() {
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this.rootView = createRootView(new DefaultServices(null, this.sanitizer), TreeComponent_Host);
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this.rootComp = asProviderData(this.rootView, 1).instance;
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this.rootEl = asElementData(this.rootView, 0).renderElement;
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}
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tick() { checkAndUpdateView(this.rootView); }
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}
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