Store Skylark command-line flags in Skyframe

This is the first of two CLs for making command line options able to affect the Skylark interpreter. It introduces SkylarkSemanticsOptions, and stores it as a precomputed (injected) value in Skyframe. The next CL will read these options from Skyframe when constructing the Skylark environment.

This CL affects the dataflow from command/test initialization to Skyframe. Some code paths, like those used for testing, use the default SkylarkSemanticsOptions and therefore won't be able to use (for example) --incompatible_* flags. The call sites to update were found by searching for uses of defaultVisibility and working upward from there.

RELNOTES: None
PiperOrigin-RevId: 154432058

1 files changed, 4 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/PrecomputedValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/PrecomputedValue.java
index 2619af2b39..d879c8f8b6 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/PrecomputedValue.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/PrecomputedValue.java
@@ -26,6 +26,7 @@ import com.google.devtools.build.lib.analysis.buildinfo.BuildInfoFactory.BuildIn
 import com.google.devtools.build.lib.packages.RuleVisibility;
 import com.google.devtools.build.lib.pkgcache.PathPackageLocator;
 import com.google.devtools.build.lib.skyframe.SkyframeActionExecutor.ConflictException;
+import com.google.devtools.build.lib.syntax.SkylarkSemanticsOptions;
 import com.google.devtools.build.lib.util.Preconditions;
 import com.google.devtools.build.lib.vfs.PathFragment;
 import com.google.devtools.build.skyframe.Injectable;
@@ -85,6 +86,9 @@ public final class PrecomputedValue implements SkyValue {
   public static final Precomputed<RuleVisibility> DEFAULT_VISIBILITY =
       new Precomputed<>(SkyKey.create(SkyFunctions.PRECOMPUTED, "default_visibility"));
 
+  public static final Precomputed<SkylarkSemanticsOptions> SKYLARK_SEMANTICS =
+      new Precomputed<>(SkyKey.create(SkyFunctions.PRECOMPUTED, "skylark_semantics"));
+
   static final Precomputed<UUID> BUILD_ID =
       new Precomputed<>(SkyKey.create(SkyFunctions.PRECOMPUTED, "build_id"));