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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.common.base.Function;
import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.packages.NativeInfo;
import com.google.devtools.build.lib.packages.NativeProvider;
import com.google.devtools.build.lib.rules.cpp.CcLinkParams.Builder;
import com.google.devtools.build.lib.rules.cpp.CcLinkParamsStore.CcLinkParamsStoreImpl;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec.VisibleForSerialization;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModuleCategory;
/** A target that provides C linker parameters. */
@Immutable
@AutoCodec
@SkylarkModule(
name = "cc_link_params_info",
title = "cc_link_params_info",
documented = false,
category = SkylarkModuleCategory.PROVIDER,
doc = "Link params provider"
)
public final class CcLinkParamsInfo extends NativeInfo {
public static final NativeProvider<CcLinkParamsInfo> PROVIDER =
new NativeProvider<CcLinkParamsInfo>(CcLinkParamsInfo.class, "link_params") {};
public static final Function<TransitiveInfoCollection, CcLinkParamsStore> TO_LINK_PARAMS =
input -> {
// ... then try Skylark.
CcLinkParamsInfo provider = input.get(PROVIDER);
if (provider != null) {
return provider.getCcLinkParamsStore();
}
return null;
};
private final CcLinkParamsStoreImpl store;
@AutoCodec.Instantiator
public CcLinkParamsInfo(CcLinkParamsStore store) {
super(PROVIDER);
this.store = new CcLinkParamsStoreImpl(store);
}
@AutoCodec
@VisibleForSerialization
static class CcLinkParamsInfoCollection extends CcLinkParamsStore {
private final Iterable<CcLinkParamsInfo> providers;
CcLinkParamsInfoCollection(Iterable<CcLinkParamsInfo> providers) {
this.providers = providers;
}
@Override
protected void collect(Builder builder, boolean linkingStatically, boolean linkShared) {
for (CcLinkParamsInfo provider : providers) {
builder.add(provider.getCcLinkParamsStore());
}
}
}
public static CcLinkParamsInfo merge(final Iterable<CcLinkParamsInfo> providers) {
return new CcLinkParamsInfo(new CcLinkParamsInfoCollection(providers));
}
/** Returns the link params store. */
public CcLinkParamsStore getCcLinkParamsStore() {
return store;
}
/**
* Returns link parameters given static / shared linking settings.
*/
public CcLinkParams getCcLinkParams(boolean linkingStatically, boolean linkShared) {
return store.get(linkingStatically, linkShared);
}
}
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