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feat: introduce source maps for templates (#15011)

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The main use case for the generated source maps is to give
errors a meaningful context in terms of the original source
that the user wrote.

Related changes that are included in this commit:

* renamed virtual folders used for jit:
  * ng://<module type>/module.ngfactory.js
  * ng://<module type>/<comp type>.ngfactory.js
  * ng://<module type>/<comp type>.html (for inline templates)
* error logging:
  * all errors that happen in templates are logged
    from the place of the nearest element.
  * instead of logging error messages and stacks separately,
    we log the actual error. This is needed so that browsers apply
    source maps to the stack correctly.
  * error type and error is logged as one log entry.

Note that long-stack-trace zone has a bug that 
disables source maps for stack traces,
see https://github.com/angular/zone.js/issues/661.

BREAKING CHANGE:

- DebugNode.source no more returns the source location of a node.  

Closes 14013
This commit is contained in:
Tobias Bosch
2017-03-14 09:16:15 -07:00
committed by Chuck Jazdzewski
parent 1c1085b140
commit cdc882bd36
48 changed files with 1196 additions and 515 deletions
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4
packages/compiler/src/aot/compiler.ts
View File

@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/
import {CompileDirectiveMetadata, CompileIdentifierMetadata, CompileNgModuleMetadata, CompileProviderMetadata, componentFactoryName, createHostComponentMeta, flatten, identifierName} from '../compile_metadata';
import {CompileDirectiveMetadata, CompileIdentifierMetadata, CompileNgModuleMetadata, CompileProviderMetadata, componentFactoryName, createHostComponentMeta, flatten, identifierName, templateSourceUrl} from '../compile_metadata';
import {CompilerConfig} from '../config';
import {Identifiers, createIdentifier, createIdentifierToken} from '../identifiers';
import {CompileMetadataResolver} from '../metadata_resolver';
@ -189,7 +189,7 @@ export class AotCompiler {
const {template: parsedTemplate, pipes: usedPipes} = this._templateParser.parse(
compMeta, compMeta.template.template, directives, pipes, ngModule.schemas,
identifierName(compMeta.type));
templateSourceUrl(ngModule.type, compMeta, compMeta.template));
const stylesExpr = componentStyles ? o.variable(componentStyles.stylesVar) : o.literalArr([]);
const viewResult =
this._viewCompiler.compileComponent(compMeta, parsedTemplate, stylesExpr, usedPipes);