angular-cn/packages/compiler-cli/test/ngtsc/fake_core
Alex Rickabaugh f902b5ec59 feat(ivy): resolve forwardRef() for queries (#25080)
@ContentChild[ren] and @ViewChild[ren] can contain a forwardRef() to a
type. This commit allows ngtsc to unwrap the forward reference and
deal with the node inside.

It includes two modes of support for forward reference resolution -
a foreign function resolver which understands deeply nested forward
references in expressions that are being statically evaluated, and
an unwrapForwardRef() function which deals only with top-level nodes.

Both will be useful in the future, but for now only unwrapForwardRef()
is used.

PR Close #25080
2018-07-26 16:38:09 -07:00
..
BUILD.bazel build: update buildifier to latest (#24296) 2018-06-12 11:42:35 -07:00
README.md
index.ts feat(ivy): resolve forwardRef() for queries (#25080) 2018-07-26 16:38:09 -07:00
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/core is 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/core must 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.