e3ecdc6a63
Currently, when Angular code is built with Bazel and with Ivy, generated factory shims (.ngfactory files) are not processed via the majority of tsickle's transforms. This is a subtle effect of the build infrastructure, but it boils down to a TsickleHost method `shouldSkipTsickleProcessing`. For ngc_wrapped builds (Bazel + Angular), this method is defined in the `@bazel/typescript` (aka bazel rules_typescript) implementation of `CompilerHost`. The default behavior is to skip tsickle processing for files which are not present in the original `srcs[]` of the build rule. In Angular's case, this includes all generated shim files. For View Engine factories this is probably desirable as they're quite complex and they've never been tested with tsickle. Ivy factories however are smaller and very straightforward, and it makes sense to treat them like any other output. This commit adjusts two independent implementations of `shouldSkipTsickleProcessing` to enable transformation of Ivy shims: * in `@angular/bazel` aka ngc_wrapped, the upstream `@bazel/typescript` `CompilerHost` is patched to treat .ngfactory files the same as their original source file, with respect to tsickle processing. It is currently not possible to test this change as we don't have any test that inspects tsickle output with bazel. It will be extensively tested in g3. * in `ngc`, Angular's own implementation is adjusted to allow for the processing of shims when compiling with Ivy. This enables a unit test to be written to validate the correct behavior of tsickle when given a host that's appropriately configured to process factory shims. For ngtsc-as-a-plugin, a similar fix will need to be submitted upstream in tsc_wrapped. PR Close #35848 PR Close #35975 |
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README.md
Angular
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