1 files changed, 29 insertions, 1 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppRuleClasses.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppRuleClasses.java
index 62454204fa..0aacc00a01 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppRuleClasses.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppRuleClasses.java
@@ -14,6 +14,8 @@
 
 package com.google.devtools.build.lib.rules.cpp;
 
+import static com.google.devtools.build.lib.packages.Attribute.attr;
+import static com.google.devtools.build.lib.packages.BuildType.LABEL;
 import static com.google.devtools.build.lib.packages.ImplicitOutputsFunction.fromTemplates;
 import static com.google.devtools.build.lib.rules.cpp.CppFileTypes.ALWAYS_LINK_LIBRARY;
 import static com.google.devtools.build.lib.rules.cpp.CppFileTypes.ALWAYS_LINK_PIC_LIBRARY;
@@ -31,11 +33,16 @@ import static com.google.devtools.build.lib.rules.cpp.CppFileTypes.SHARED_LIBRAR
 import static com.google.devtools.build.lib.rules.cpp.CppFileTypes.VERSIONED_SHARED_LIBRARY;
 
 import com.google.devtools.build.lib.analysis.LanguageDependentFragment.LibraryLanguage;
+import com.google.devtools.build.lib.analysis.RuleDefinition;
 import com.google.devtools.build.lib.analysis.RuleDefinitionEnvironment;
+import com.google.devtools.build.lib.analysis.config.HostTransition;
 import com.google.devtools.build.lib.analysis.test.InstrumentedFilesCollector.InstrumentationSpec;
 import com.google.devtools.build.lib.cmdline.Label;
 import com.google.devtools.build.lib.packages.Attribute.LabelLateBoundDefault;
 import com.google.devtools.build.lib.packages.ImplicitOutputsFunction.SafeImplicitOutputsFunction;
+import com.google.devtools.build.lib.packages.RuleClass;
+import com.google.devtools.build.lib.packages.RuleClass.Builder;
+import com.google.devtools.build.lib.packages.RuleClass.Builder.RuleClassType;
 import com.google.devtools.build.lib.packages.RuleTransitionFactory;
 import com.google.devtools.build.lib.rules.cpp.transitions.EnableLipoTransition;
 import com.google.devtools.build.lib.util.FileTypeSet;
@@ -178,7 +185,7 @@ public class CppRuleClasses {
 
   /** A string constant for the header_modules_compile feature. */
   public static final String HEADER_MODULE_COMPILE = "header_module_compile";
-  
+
   /** A string constant for the header_module_codegen feature. */
   public static final String HEADER_MODULE_CODEGEN = "header_module_codegen";
 
@@ -364,4 +371,25 @@ public class CppRuleClasses {
 
   /** A string constant for the match-clif action. */
   public static final String MATCH_CLIF = "match_clif";
+
+  /** Ancestor for all rules that do include scanning. */
+  public static final class CcIncludeScanningRule implements RuleDefinition {
+    @Override
+    public RuleClass build(Builder builder, RuleDefinitionEnvironment env) {
+      return builder
+          .add(
+              attr("$grep_includes", LABEL)
+                  .cfg(HostTransition.INSTANCE)
+                  .value(env.getToolsLabel("//tools/cpp:grep-includes")))
+          .build();
+    }
+
+    @Override
+    public Metadata getMetadata() {
+      return RuleDefinition.Metadata.builder()
+          .name("$cc_include_scanning_rule")
+          .type(RuleClassType.ABSTRACT)
+          .build();
+    }
+  }
 }