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// Copyright 2014 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 com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.rules.cpp.CppConfiguration.HeadersCheckingMode;
import com.google.devtools.build.lib.vfs.PathFragment;
/**
* Pluggable C++ compilation semantics.
*/
public interface CppSemantics {
/**
* Returns the "effective source path" of a source file.
*
* <p>It is used, among other things, for computing the output path.
*/
PathFragment getEffectiveSourcePath(Artifact source);
/**
* Called before a C++ compile action is built.
*
* <p>Gives the semantics implementation the opportunity to change compile actions at the last
* minute.
*/
void finalizeCompileActionBuilder(
RuleContext ruleContext, CppCompileActionBuilder actionBuilder);
/**
* Called before {@link CppCompilationContext}s are finalized.
*
* <p>Gives the semantics implementation the opportunity to change what the C++ rule propagates
* to dependent rules.
*/
void setupCompilationContext(
RuleContext ruleContext, CppCompilationContext.Builder contextBuilder);
/**
* Determines the applicable mode of headers checking for the passed in ruleContext.
*/
HeadersCheckingMode determineHeadersCheckingMode(RuleContext ruleContext);
/**
* Returns true iff this build configuration requires inclusion extraction (for include scanning)
* in the action graph.
*/
boolean needsIncludeScanning(RuleContext ruleContext);
void validateAttributes(RuleContext ruleContext);
/** Returns true iff this build requires include validation. */
boolean needsIncludeValidation();
}
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