/*
* 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.model.BuildTarget;
import com.facebook.buck.rules.BuildRule;
import com.facebook.buck.rules.BuildRuleResolver;
import com.facebook.buck.rules.SourcePathRuleFinder;
import com.facebook.buck.rules.coercer.FrameworkPath;
import com.facebook.buck.util.immutables.BuckStyleImmutable;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Multimap;
import java.util.Optional;
import org.immutables.value.Value;
/** The components that get contributed to a top-level run of the C++ preprocessor. */
@Value.Immutable
@BuckStyleImmutable
abstract class AbstractCxxPreprocessorInput {
@Value.Parameter
public abstract Multimap<CxxSource.Type, String> getPreprocessorFlags();
@Value.Parameter
public abstract ImmutableList<CxxHeaders> getIncludes();
// Framework paths.
@Value.Parameter
public abstract ImmutableSet<FrameworkPath> getFrameworks();
// The build rules which produce headers found in the includes below.
@Value.Parameter
protected abstract ImmutableSet<BuildTarget> getRules();
public Iterable<BuildRule> getDeps(
BuildRuleResolver ruleResolver, SourcePathRuleFinder ruleFinder) {
ImmutableList.Builder<BuildRule> builder = ImmutableList.builder();
for (CxxHeaders cxxHeaders : getIncludes()) {
builder.addAll(cxxHeaders.getDeps(ruleFinder));
}
builder.addAll(ruleResolver.getAllRules(getRules()));
for (FrameworkPath frameworkPath : getFrameworks()) {
if (frameworkPath.getSourcePath().isPresent()) {
Optional<BuildRule> frameworkRule = ruleFinder.getRule(frameworkPath.getSourcePath().get());
if (frameworkRule.isPresent()) {
builder.add(frameworkRule.get());
}
}
}
return builder.build();
}
public static final CxxPreprocessorInput EMPTY = CxxPreprocessorInput.builder().build();
public static CxxPreprocessorInput concat(Iterable<CxxPreprocessorInput> inputs) {
ImmutableMultimap.Builder<CxxSource.Type, String> preprocessorFlags =
ImmutableMultimap.builder();
ImmutableList.Builder<CxxHeaders> headers = ImmutableList.builder();
ImmutableSet.Builder<FrameworkPath> frameworks = ImmutableSet.builder();
ImmutableSet.Builder<BuildTarget> rules = ImmutableSet.builder();
for (CxxPreprocessorInput input : inputs) {
preprocessorFlags.putAll(input.getPreprocessorFlags());
headers.addAll(input.getIncludes());
frameworks.addAll(input.getFrameworks());
rules.addAll(input.getRules());
}
return CxxPreprocessorInput.of(
preprocessorFlags.build(), headers.build(), frameworks.build(), rules.build());
}
}