Add SkylarkSemantics#toBuilder() and #builderWithDefaults()
This avoids having to inline a bunch of default values when you only want to change one flag.
RELNOTES: None
PiperOrigin-RevId: 178148057
diff --git a/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java b/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
index d2b7ef3..714f197 100644
--- a/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
+++ b/src/test/java/com/google/devtools/build/lib/packages/SkylarkSemanticsConsistencyTest.java
@@ -74,7 +74,7 @@
}
}
- /*
+ /**
* Checks that a randomly generated {@link SkylarkSemantics} object can be serialized and
* deserialized to an equivalent object.
*/
@@ -97,6 +97,14 @@
assertThat(semanticsFromOptions).isEqualTo(defaultSemantics);
}
+ @Test
+ public void canGetBuilderFromInstance() {
+ SkylarkSemantics original = SkylarkSemantics.DEFAULT_SEMANTICS;
+ assertThat(original.internalSkylarkFlagTestCanary()).isFalse();
+ SkylarkSemantics modified = original.toBuilder().internalSkylarkFlagTestCanary(true).build();
+ assertThat(modified.internalSkylarkFlagTestCanary()).isTrue();
+ }
+
/**
* Constructs a {@link SkylarkSemanticsOptions} object with random fields. Must access {@code
* rand} using the same sequence of operations (for the same fields) as {@link
