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During analysis, the `ComponentDecoratorHandler` passes the component template to the `parseTemplate()` function. Previously, there was little or no information about the original source file, where the template is found, passed when calling this function. Now, we correctly compute the URL of the source of the template, both for external `templateUrl` and in-line `template` cases. Further in the in-line template case we compute the character range of the template in its containing source file; *but only in the case that the template is a simple string literal*. If the template is actually a dynamic value like an interpolated string or a function call, then we do not try to add the originating source file information. The translator that converts Ivy AST nodes to TypeScript now adds these template specific source mappings, which account for the file where the template was found, to the templates to support stepping through the template creation and update code when debugging an Angular application. Note that some versions of TypeScript have a bug which means they cannot support external template source-maps. We check for this via the `canSourceMapExternalTemplates()` helper function and avoid trying to add template mappings to external templates if not supported. PR Close #28055 |
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| .. | ||
| compliance | ||
| diagnostics | ||
| metadata | ||
| ngcc | ||
| ngtsc | ||
| transformers | ||
| BUILD.bazel | ||
| extract_i18n_spec.ts | ||
| mocks.ts | ||
| ngc_spec.ts | ||
| ngtools_api_spec.ts | ||
| perform_compile_spec.ts | ||
| perform_watch_spec.ts | ||
| runfile_helpers.ts | ||
| test_support.ts | ||