27bc7dcb43
This change supports compilation of components, directives, and modules within ngtsc. Support is not complete, but is enough to compile and test //packages/core/test/bundling/todo in full AOT mode. Code size benefits are not yet achieved as //packages/core itself does not get compiled, and some decorators (e.g. @Input) are not stripped, leading to unwanted code being retained by the tree-shaker. This will be improved in future commits. PR Close #24427 |
||
|---|---|---|
| .. | ||
| BUILD.bazel | ||
| README.md | ||
| index.ts | ||
| package.json | ||
README.md
fake_core is a library designed to expose some of the same symbols as @angular/core, without
requiring compilation of the whole of @angular/core. This enables unit tests for the compiler to
be written without incurring long rebuilds for every change.
@angular/coreis compiled with@angular/compiler-cli, and therefore has an implicit dependency on it. Therefore core must be rebuilt if the compiler changes.- Tests for the compiler which intend to build code that depends on
@angular/coremust have a data dependency on@angular/core. Therefore core must be built to run the compiler tests, and thus rebuilt if the compiler changes.
This rebuild cycle is expensive and slow. fake_core avoids this by exposing a subset of the
@angular/core API, which enables applications to be built by the ngtsc compiler without
needing a full version of core present at compile time.