tree 6eeee8a4a3475870d428c9ee33f1a97d472a5982
parent c766a3eb8e2b575ca07f601dbe5c74f751480f2a
author eugenezh <194462+eugenezh@users.noreply.github.com> 1786242255 +0200
committer GitHub <noreply@github.com> 1786242255 -0500
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Wire the experimental_build_tools_api build setting into the toolchain (#1704)

* Wire the experimental_build_tools_api build setting into the toolchain

- The //kotlin/settings:experimental_build_tools_api bool_flag was a no-op.
  Now the flag toggles compilation with Build Tools API for all kotlin toolchains.
- The toolchain now reads the setting via a BuildSettingInfo label attr;
  the effective toggle is the per-toolchain attr OR-ed with the build setting.
- Changed default value to 'False' making Build Tools API an explicit opt-in.
- README updated and tests added
- Fixed the ksp and dagger examples: their locally-defined toolchains were never
  registered, so builds silently ran on the default toolchain (jvm_target 1.8).
  On the Build Tools API lane the Java half compiles with javac --release, and
  --release 8 correctly rejects the JDK 9+ javax.annotation.processing.Generated
  import in the KSP/Dagger-generated code. The examples now register their own
  toolchains with jvm_target 11.

* Pass -no-stdlib on the Build Tools API path

Set NO_STDLIB and NO_REFLECT after applying the user arguments, so the
Build Tools API path always compiles against exactly the declared
classpath.