Similarly to the change we landed in the `@angular/core` reflection capabilities, we need to make sure that ngcc can detect pass-through delegate constructors for classes using downleveled ES2015 output. More details can be found in the preceding commit, and in the issue outlining the problem: #38453. Fixes #38453. PR Close #38463
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