| /* |
| * Copyright 2014-present Facebook, Inc. |
| * |
| * 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.facebook.buck.cxx; |
| |
| import com.facebook.buck.rules.AbstractBuildRule; |
| import com.facebook.buck.rules.BuildContext; |
| import com.facebook.buck.rules.BuildRuleParams; |
| import com.facebook.buck.rules.BuildableContext; |
| import com.facebook.buck.rules.RuleKey; |
| import com.facebook.buck.rules.SourcePath; |
| import com.facebook.buck.rules.SourcePathResolver; |
| import com.facebook.buck.step.Step; |
| import com.facebook.buck.step.fs.MkdirStep; |
| import com.facebook.buck.step.fs.RmStep; |
| import com.google.common.collect.ImmutableCollection; |
| import com.google.common.collect.ImmutableList; |
| |
| import java.nio.file.Path; |
| |
| import javax.annotation.Nullable; |
| |
| public class Yacc extends AbstractBuildRule { |
| |
| private final Path yacc; |
| private final ImmutableList<String> flags; |
| private final Path outputPrefix; |
| private final SourcePath input; |
| |
| public Yacc( |
| BuildRuleParams params, |
| SourcePathResolver resolver, |
| Path yacc, |
| ImmutableList<String> flags, |
| Path outputPrefix, |
| SourcePath input) { |
| super(params, resolver); |
| this.yacc = yacc; |
| this.flags = flags; |
| this.outputPrefix = outputPrefix; |
| this.input = input; |
| } |
| |
| public static Path getHeaderOutputPath(Path outputPrefix) { |
| return YaccStep.getHeaderOutputPath(outputPrefix); |
| } |
| |
| public static Path getSourceOutputPath(Path outputPrefix) { |
| return YaccStep.getSourceOutputPath(outputPrefix); |
| } |
| |
| @Override |
| protected ImmutableCollection<Path> getInputsToCompareToOutput() { |
| return getResolver().filterInputsToCompareToOutput(input); |
| } |
| |
| @Override |
| protected RuleKey.Builder appendDetailsToRuleKey(RuleKey.Builder builder) { |
| return builder |
| .setReflectively("yacc", yacc) |
| .setReflectively("flags", flags) |
| .setReflectively("outputPrefix", outputPrefix.toString()) |
| // The input name gets baked into line markers. |
| .setReflectively("input", input.toString()); |
| } |
| |
| @Override |
| public ImmutableList<Step> getBuildSteps( |
| BuildContext context, |
| BuildableContext buildableContext) { |
| |
| // Cache the output source and header. |
| buildableContext.recordArtifact(YaccStep.getHeaderOutputPath(outputPrefix)); |
| buildableContext.recordArtifact(YaccStep.getSourceOutputPath(outputPrefix)); |
| |
| return ImmutableList.of( |
| new MkdirStep(outputPrefix.getParent()), |
| new RmStep(getHeaderOutputPath(outputPrefix), /* shouldForceDeletion */ true), |
| new RmStep(getSourceOutputPath(outputPrefix), /* shouldForceDeletion */ true), |
| new YaccStep( |
| yacc, |
| flags, |
| outputPrefix, |
| getResolver().getPath(input))); |
| } |
| |
| @Nullable |
| @Override |
| public Path getPathToOutputFile() { |
| return null; |
| } |
| |
| } |