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feat(language-service): enable logging on TypeScriptHost (#32645) 

This PR adds loggin methods to TypeScriptHost so that proper logging
to file could be done.
Three new methods are added: log(), error(), and debug().

PR Close #32645
This commit is contained in:
Keen Yee Liau 2019-09-12 11:37:04 -07:00 committed by Kara Erickson
parent 3c7da767d8
commit e82f56b96f
1 changed files with 40 additions and 0 deletions
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40
packages/language-service/src/typescript_host.ts
View File

@ -9,6 +9,7 @@
import {AotSummaryResolver, CompileDirectiveSummary, CompileMetadataResolver, CompileNgModuleMetadata, CompilePipeSummary, CompilerConfig, DirectiveNormalizer, DirectiveResolver, DomElementSchemaRegistry, FormattedError, FormattedMessageChain, HtmlParser, I18NHtmlParser, JitSummaryResolver, Lexer, NgAnalyzedModules, NgModuleResolver, ParseTreeResult, Parser, PipeResolver, ResourceLoader, StaticReflector, StaticSymbol, StaticSymbolCache, StaticSymbolResolver, TemplateParser, analyzeNgModules, createOfflineCompileUrlResolver, isFormattedError} from '@angular/compiler';
import {SchemaMetadata, ViewEncapsulation, ɵConsole as Console} from '@angular/core';
import * as ts from 'typescript';
import * as tss from 'typescript/lib/tsserverlibrary';
import {AstResult, isAstResult} from './common';
import {createLanguageService} from './language_service';
@ -525,6 +526,45 @@ export class TypeScriptServiceHost implements LanguageServiceHost {
};
}
}
/**
* Log the specified `msg` to file at INFO level. If logging is not enabled
* this method is a no-op.
* @param msg Log message
*/
log(msg: string) {
if (this.tsLsHost.log) {
this.tsLsHost.log(msg);
}
}
/**
* Log the specified `msg` to file at ERROR level. If logging is not enabled
* this method is a no-op.
* @param msg error message
*/
error(msg: string) {
if (this.tsLsHost.error) {
this.tsLsHost.error(msg);
}
}
/**
* Log debugging info to file at INFO level, only if verbose setting is turned
* on. Otherwise, this method is a no-op.
* @param msg debugging message
*/
debug(msg: string) {
const project = this.tsLsHost as tss.server.Project;
if (!project.projectService) {
// tsLsHost is not a Project
return;
}
const {logger} = project.projectService;
if (logger.hasLevel(tss.server.LogLevel.verbose)) {
logger.info(msg);
}
}
}
function findSuitableDefaultModule(modules: NgAnalyzedModules): CompileNgModuleMetadata|undefined {