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The linker AST is abstracted to be agnostic of the underlying implementation AST. i.e. TS AST or Babel AST. This abstraction also intends to provide some type-safety-ness to parsing of various partial declarations. This commit improves type safety further by fixing that `AstValue'`s were not checked for assignability of `T`- potentially hiding issues/unaccounted values. Additionally, we fix that `getObject()` does not properly narrow union types to actual object literals. This happend because e.g. arrays are of type `object`. We can improve type safety here. Using `Record` did not help as an array would still assign to that. PR Close #53808 |
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| README.md | ||
Angular Linker
This package contains a FileLinker and supporting code to be able to "link" partial declarations of components, directives, etc in libraries to produce the full definitions.
The partial declaration format allows library packages to be published to npm without exposing the underlying Ivy instructions.
The tooling here allows application build tools (e.g. CLI) to produce fully compiled components, directives, etc at the point when the application is bundled.
These linked files can be cached outside node_modules so it does not suffer from problems of mutating packages in node_modules.
Generally this tooling will be wrapped in a transpiler specific plugin, such as the provided Babel plugin.
Unit Testing
The unit tests are built and run using Bazel:
yarn bazel test //packages/compiler-cli/linker/test