| // Copyright 2021 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.cpp; |
| |
| import static com.google.devtools.build.lib.packages.Type.BOOLEAN; |
| |
| import com.google.devtools.build.lib.analysis.config.ExecutionTransitionFactory; |
| import com.google.devtools.build.lib.analysis.config.transitions.ConfigurationTransition; |
| import com.google.devtools.build.lib.analysis.config.transitions.NoTransition; |
| import com.google.devtools.build.lib.analysis.config.transitions.TransitionFactory; |
| import com.google.devtools.build.lib.packages.AttributeTransitionData; |
| |
| /** |
| * CcToolchainInputsTransition allows file inputs to the cc_toolchain to be transitioned to the exec |
| * platform, or no transition at all (which defaults to the target configuration). |
| */ |
| public class CcToolchainInputsTransitionFactory |
| implements TransitionFactory<AttributeTransitionData> { |
| |
| public static final String ATTR_NAME = "exec_transition_for_inputs"; |
| |
| @Override |
| public ConfigurationTransition create(AttributeTransitionData data) { |
| if (data.attributes().has(ATTR_NAME) && !data.attributes().get(ATTR_NAME, BOOLEAN)) { |
| return NoTransition.INSTANCE; |
| } else { |
| return ExecutionTransitionFactory.createFactory().create(data); |
| } |
| } |
| |
| @Override |
| public TransitionType transitionType() { |
| return TransitionType.ATTRIBUTE; |
| } |
| } |