| // Copyright 2018 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.common.base.Preconditions; |
| import com.google.devtools.build.lib.actions.Artifact; |
| import com.google.devtools.build.lib.analysis.RuleContext; |
| import com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget.Mode; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.util.FileType.HasFileType; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import java.util.Objects; |
| |
| /** Value object reused by fdo configurations that may be either an artifact or a path. */ |
| @Immutable |
| public final class FdoInputFile implements HasFileType { |
| |
| private final Artifact artifact; |
| private final PathFragment absolutePath; |
| |
| private FdoInputFile(Artifact artifact, PathFragment absolutePath) { |
| Preconditions.checkArgument((artifact == null) != (absolutePath == null)); |
| Preconditions.checkArgument(absolutePath == null || absolutePath.isAbsolute()); |
| this.artifact = artifact; |
| this.absolutePath = absolutePath; |
| } |
| |
| public Artifact getArtifact() { |
| return artifact; |
| } |
| |
| public PathFragment getAbsolutePath() { |
| return absolutePath; |
| } |
| |
| public String getBasename() { |
| return artifact != null ? artifact.getFilename() : absolutePath.getBaseName(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| |
| if (!(o instanceof FdoInputFile)) { |
| return false; |
| } |
| |
| FdoInputFile that = (FdoInputFile) o; |
| return Objects.equals(this.artifact, that.artifact) |
| && Objects.equals(this.absolutePath, that.absolutePath); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(artifact, absolutePath); |
| } |
| |
| public static FdoInputFile fromAbsolutePath(PathFragment absolutePath) { |
| return new FdoInputFile(null, absolutePath); |
| } |
| |
| public static FdoInputFile fromArtifact(Artifact artifact) { |
| return new FdoInputFile(artifact, null); |
| } |
| |
| public static FdoInputFile fromProfileRule(RuleContext ruleContext) { |
| |
| boolean isLabel = ruleContext.attributes().isAttributeValueExplicitlySpecified("profile"); |
| boolean isAbsolutePath = |
| ruleContext.attributes().isAttributeValueExplicitlySpecified("absolute_path_profile"); |
| |
| if (isLabel == isAbsolutePath) { |
| ruleContext.ruleError("exactly one of profile and absolute_path_profile should be specified"); |
| return null; |
| } |
| |
| if (isLabel) { |
| Artifact artifact = ruleContext.getPrerequisiteArtifact("profile", Mode.TARGET); |
| if (!artifact.isSourceArtifact()) { |
| ruleContext.attributeError("profile", " the target is not an input file"); |
| } |
| return new FdoInputFile(artifact, null); |
| } else { |
| if (!ruleContext.getFragment(CppConfiguration.class).isFdoAbsolutePathEnabled()) { |
| ruleContext.attributeError( |
| "absolute_path_profile", |
| "this attribute cannot be used when --enable_fdo_profile_absolute_path is false"); |
| return null; |
| } |
| String pathString = ruleContext.getExpander().expand("absolute_path_profile"); |
| PathFragment absolutePath = PathFragment.create(pathString); |
| if (!absolutePath.isAbsolute()) { |
| ruleContext.attributeError( |
| "absolute_path_profile", |
| String.format("%s is not an absolute path", absolutePath.getPathString())); |
| return null; |
| } |
| return new FdoInputFile(null, absolutePath); |
| } |
| } |
| |
| @Override |
| public String filePathForFileTypeMatcher() { |
| return artifact != null |
| ? artifact.filePathForFileTypeMatcher() |
| : absolutePath.filePathForFileTypeMatcher(); |
| } |
| } |