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perf(core): add option to remove blank text nodes from compiled templates

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This commit is contained in:
Pawel Kozlowski
2017-07-28 15:58:28 +02:00
committed by Hans
parent 088532bf2e
commit d2c0d986d4
27 changed files with 450 additions and 46 deletions
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23
packages/compiler/src/template_parser/template_parser.ts
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@ -18,6 +18,7 @@ import {Identifiers, createTokenForExternalReference, createTokenForReference} f
import {CompilerInjectable} from '../injectable';
import * as html from '../ml_parser/ast';
import {ParseTreeResult} from '../ml_parser/html_parser';
import {removeWhitespaces} from '../ml_parser/html_whitespaces';
import {expandNodes} from '../ml_parser/icu_ast_expander';
import {InterpolationConfig} from '../ml_parser/interpolation_config';
import {isNgTemplate, splitNsName} from '../ml_parser/tags';
@ -113,9 +114,10 @@ export class TemplateParser {
parse(
component: CompileDirectiveMetadata, template: string, directives: CompileDirectiveSummary[],
pipes: CompilePipeSummary[], schemas: SchemaMetadata[],
templateUrl: string): {template: TemplateAst[], pipes: CompilePipeSummary[]} {
const result = this.tryParse(component, template, directives, pipes, schemas, templateUrl);
pipes: CompilePipeSummary[], schemas: SchemaMetadata[], templateUrl: string,
preserveWhitespaces: boolean): {template: TemplateAst[], pipes: CompilePipeSummary[]} {
const result = this.tryParse(
component, template, directives, pipes, schemas, templateUrl, preserveWhitespaces);
const warnings =
result.errors !.filter(error => error.level === ParseErrorLevel.WARNING)
.filter(warnOnlyOnce(
@ -137,12 +139,17 @@ export class TemplateParser {
tryParse(
component: CompileDirectiveMetadata, template: string, directives: CompileDirectiveSummary[],
pipes: CompilePipeSummary[], schemas: SchemaMetadata[],
templateUrl: string): TemplateParseResult {
pipes: CompilePipeSummary[], schemas: SchemaMetadata[], templateUrl: string,
preserveWhitespaces: boolean): TemplateParseResult {
let htmlParseResult = this._htmlParser !.parse(
template, templateUrl, true, this.getInterpolationConfig(component));
if (!preserveWhitespaces) {
htmlParseResult = removeWhitespaces(htmlParseResult);
}
return this.tryParseHtml(
this.expandHtml(this._htmlParser !.parse(
template, templateUrl, true, this.getInterpolationConfig(component))),
component, directives, pipes, schemas);
this.expandHtml(htmlParseResult), component, directives, pipes, schemas);
}
tryParseHtml(