Common AST formats such as TS and Babel do not use a separate node for comments, but instead attach comments to other AST nodes. Previously this was worked around in TS by creating a `NotEmittedStatement` AST node to attach the comment to. But Babel does not have this facility, so it will not be a viable approach for the linker. This commit refactors the output AST, to remove the `CommentStmt` and `JSDocCommentStmt` nodes. Instead statements have a collection of `leadingComments` that are rendered/attached to the final AST nodes when being translated or printed. PR Close #38811
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