Move core rules to a top-level class.

PiperOrigin-RevId: 164013246

1 files changed, 55 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/core/CoreRules.java b/src/main/java/com/google/devtools/build/lib/rules/core/CoreRules.java
new file mode 100644
index 0000000000..9494b4edd5
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/rules/core/CoreRules.java
@@ -0,0 +1,55 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package com.google.devtools.build.lib.rules.core;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
+import com.google.devtools.build.lib.analysis.BaseRuleClasses;
+import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider.Builder;
+import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider.RuleSet;
+import com.google.devtools.build.lib.analysis.featurecontrol.FeaturePolicyLoader;
+import com.google.devtools.build.lib.analysis.featurecontrol.FeaturePolicyOptions;
+import com.google.devtools.build.lib.rules.config.ConfigFeatureFlag;
+
+/** A set of basic rules - Bazel won't work correctly without these. */
+public final class CoreRules implements RuleSet {
+  public static final CoreRules INSTANCE = new CoreRules();
+
+  public static final ImmutableSet<String> FEATURE_POLICY_FEATURES =
+      ImmutableSet.of(ConfigFeatureFlag.POLICY_NAME);
+
+  private CoreRules() {
+    // Use the static INSTANCE field instead.
+  }
+
+  @Override
+  public void init(Builder builder) {
+    builder.addConfigurationOptions(FeaturePolicyOptions.class);
+    builder.addConfigurationFragment(new FeaturePolicyLoader(FEATURE_POLICY_FEATURES));
+    builder.addDynamicTransitionMaps(BaseRuleClasses.DYNAMIC_TRANSITIONS_MAP);
+
+    builder.addRuleDefinition(new BaseRuleClasses.RootRule());
+    builder.addRuleDefinition(new BaseRuleClasses.BaseRule());
+    builder.addRuleDefinition(new BaseRuleClasses.RuleBase());
+    builder.addRuleDefinition(new BaseRuleClasses.MakeVariableExpandingRule());
+    builder.addRuleDefinition(new BaseRuleClasses.BinaryBaseRule());
+    builder.addRuleDefinition(new BaseRuleClasses.TestBaseRule());
+    builder.addRuleDefinition(new BaseRuleClasses.ErrorRule());
+  }
+
+  @Override
+  public ImmutableList<RuleSet> requires() {
+    return ImmutableList.of();
+  }
+}