commit fcb17112bfbb598954306ee197a842ec8f4e8e64
author Nathan Harmata <nharmata@google.com> Wed Apr 13 16:56:58 2016 +0000
committer Damien Martin-Guillerez <dmarting@google.com> Thu Apr 14 07:37:49 2016 +0000
tree 6836080bdfb79683aa099f1fe445a7721bf820e8
parent f5700b661838d4e22ffeea7b224c38b936d5e14d

Roll-foward of commit 351475627b9e94e5afdf472cbf465f49c433a25e which was rolled back in commit 1250fdac4c7769cfa200af8b4f9b061024356fea. There was nothing wrong with that change.

--
MOS_MIGRATED_REVID=119756383

src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java

diff --git a/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java b/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
index f77a271..57e6808 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
@@ -158,6 +158,7 @@
 
   private RuleContext(
       Builder builder,
+      AttributeMap attributes,
       ListMultimap<String, ConfiguredTarget> targetMap,
       ListMultimap<String, ConfiguredFilesetEntry> filesetEntryMap,
       Set<ConfigMatchingProvider> configConditions,
@@ -172,8 +173,7 @@
     this.targetMap = targetMap;
     this.filesetEntryMap = filesetEntryMap;
     this.configConditions = configConditions;
-    this.attributes =
-        ConfiguredAttributeMapper.of(builder.rule, configConditions);
+    this.attributes = attributes;
     this.features = getEnabledFeatures();
     this.ruleClassNameForLogging = ruleClassNameForLogging;
     this.aspectAttributes = aspectAttributes;
@@ -1330,11 +1330,14 @@
       Preconditions.checkNotNull(prerequisiteMap);
       Preconditions.checkNotNull(configConditions);
       Preconditions.checkNotNull(visibility);
+      AttributeMap attributes = ConfiguredAttributeMapper.of(rule, configConditions);
+      validateAttributes(attributes);
       ListMultimap<String, ConfiguredTarget> targetMap = createTargetMap();
       ListMultimap<String, ConfiguredFilesetEntry> filesetEntryMap =
           createFilesetEntryMap(rule, configConditions);
       return new RuleContext(
           this,
+          attributes,
           targetMap,
           filesetEntryMap,
           configConditions,
@@ -1343,6 +1346,10 @@
           aspectAttributes != null ? aspectAttributes : ImmutableMap.<String, Attribute>of());
     }
 
+    private void validateAttributes(AttributeMap attributes) {
+      rule.getRuleClassObject().checkAttributesNonEmpty(rule, reporter, attributes);
+    }
+
     Builder setVisibility(NestedSet<PackageSpecification> visibility) {
       this.visibility = visibility;
       return this;