The recently introduced typings-only mode in ngcc would incorrectly write compiled JavaScript files if typings-only mode was requested, in case the typings of the entry-point had already been processed in a prior run of ngcc. The corresponding format property for which the JavaScript files were written were not marked as processed, though, as the typings-only mode excluded the format property itself from being marked as processed. Consequently, subsequent runs of ngcc would not consider the entry-point to have been processed and recompile the JavaScript bundle once more, resulting in duplicate ngcc imports. Fixes #41198 PR Close #41209
Angular Compatibility Compiler (ngcc)
This compiler will convert node_modules
compiled with ngc
, into node_modules
which
appear to have been compiled with ngtsc
.
This conversion will allow such "legacy" packages to be used by the Ivy rendering engine.
Building
The project is built using Bazel:
yarn bazel build //packages/compiler-cli/ngcc
Unit Testing
The unit tests are built and run using Bazel:
yarn bazel test //packages/compiler-cli/ngcc/test
Integration Testing
There are tests that check the behavior of the overall executable:
yarn bazel test //packages/compiler-cli/ngcc/test:integration