/*
* Copyright 2015-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.io.FileScrubber;
import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.rules.BuildRule;
import com.facebook.buck.rules.BuildRuleParams;
import com.facebook.buck.rules.BuildRuleResolver;
import com.facebook.buck.rules.RuleKeyObjectSink;
import com.facebook.buck.rules.SourcePath;
import com.facebook.buck.rules.SourcePathResolver;
import com.facebook.buck.rules.SourcePathRuleFinder;
import com.facebook.buck.rules.Tool;
import com.facebook.buck.rules.args.Arg;
import com.facebook.buck.rules.args.StringArg;
import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import java.nio.file.Path;
/**
* A specialization of {@link Linker} containing information specific to the Windows implementation.
*/
public class WindowsLinker implements Linker {
private final Tool tool;
public WindowsLinker(Tool tool) {
this.tool = tool;
}
@Override
public ImmutableCollection<BuildRule> getDeps(SourcePathRuleFinder ruleFinder) {
return tool.getDeps(ruleFinder);
}
@Override
public ImmutableCollection<SourcePath> getInputs() {
return tool.getInputs();
}
@Override
public ImmutableList<String> getCommandPrefix(SourcePathResolver resolver) {
return tool.getCommandPrefix(resolver);
}
@Override
public ImmutableMap<String, String> getEnvironment(SourcePathResolver resolver) {
return tool.getEnvironment(resolver);
}
@Override
public ImmutableList<FileScrubber> getScrubbers(ImmutableCollection<Path> cellRoots) {
return ImmutableList.of();
}
@Override
public Iterable<Arg> linkWhole(Arg input) {
return ImmutableList.of();
}
@Override
public Iterable<String> soname(String arg) {
return ImmutableList.of();
}
@Override
public Iterable<Arg> fileList(Path fileListPath) {
return ImmutableList.of();
}
@Override
public String origin() {
throw new UnsupportedOperationException();
}
@Override
public String libOrigin() {
throw new UnsupportedOperationException();
}
@Override
public String searchPathEnvVar() {
return "PATH";
}
@Override
public String preloadEnvVar() {
throw new UnsupportedOperationException();
}
@Override
public ImmutableList<Arg> createUndefinedSymbolsLinkerArgs(
BuildRuleParams baseParams,
BuildRuleResolver ruleResolver,
SourcePathRuleFinder ruleFinder,
BuildTarget target,
Iterable<? extends SourcePath> symbolFiles) {
throw new UnsupportedOperationException();
}
@Override
public Iterable<String> getNoAsNeededSharedLibsFlags() {
return ImmutableList.of();
}
@Override
public Iterable<String> getIgnoreUndefinedSymbolsFlags() {
return ImmutableList.of();
}
@Override
public Iterable<Arg> getSharedLibFlag() {
return ImmutableList.of(StringArg.of("/DLL"));
}
@Override
public Iterable<String> outputArgs(String path) {
return ImmutableList.of("/OUT:" + path);
}
/**
* https://msdn.microsoft.com/en-us/library/ts7eyw4s.aspx - LNK1104 error if Path for filename
* expands to more than 260 characters.
*/
@Override
public boolean hasFilePathSizeLimitations() {
return true;
}
@Override
public void appendToRuleKey(RuleKeyObjectSink sink) {
sink.setReflectively("tool", tool).setReflectively("type", getClass().getSimpleName());
}
}