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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.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.events.Location;
import com.google.devtools.build.lib.packages.NativeInfo;
import com.google.devtools.build.lib.packages.NativeProvider;
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.skylarkbuildapi.cpp.CcLinkingInfoApi;
import com.google.devtools.build.lib.syntax.Environment;
import com.google.devtools.build.lib.syntax.EvalException;
import com.google.devtools.build.lib.syntax.FunctionSignature;
import com.google.devtools.build.lib.syntax.Runtime;
import com.google.devtools.build.lib.syntax.SkylarkType;
import javax.annotation.Nullable;
/** Wrapper for every C++ linking provider. */
@Immutable
@AutoCodec
public final class CcLinkingInfo extends NativeInfo implements CcLinkingInfoApi {
private static final FunctionSignature.WithValues<Object, SkylarkType> SIGNATURE =
FunctionSignature.WithValues.create(
FunctionSignature.of(
/* numMandatoryPositionals= */ 0,
/* numOptionalPositionals= */ 0,
// TODO(plf): Make CcLinkParams parameters mandatory once existing rules have been
// migrated.
/* numMandatoryNamedOnly= */ 0,
/* starArg= */ false,
/* kwArg= */ false,
"static_shared_params",
"static_no_shared_params",
"no_static_shared_params",
"no_static_no_shared_params",
"cc_runfiles"),
/* defaultValues= */ ImmutableList.of(
Runtime.NONE, Runtime.NONE, Runtime.NONE, Runtime.NONE, Runtime.NONE),
/* types= */ ImmutableList.of(
SkylarkType.of(CcLinkParams.class),
SkylarkType.of(CcLinkParams.class),
SkylarkType.of(CcLinkParams.class),
SkylarkType.of(CcLinkParams.class),
SkylarkType.of(CcRunfiles.class)));
@Nullable
private static Object nullIfNone(Object object) {
return nullIfNone(object, Object.class);
}
@Nullable
private static <T> T nullIfNone(Object object, Class<T> type) {
return object != Runtime.NONE ? type.cast(object) : null;
}
public static final NativeProvider<CcLinkingInfo> PROVIDER =
new NativeProvider<CcLinkingInfo>(CcLinkingInfo.class, "CcLinkingInfo", SIGNATURE) {
@Override
@SuppressWarnings("unchecked")
protected CcLinkingInfo createInstanceFromSkylark(
Object[] args, Environment env, Location loc) throws EvalException {
CcCommon.checkLocationWhitelisted(loc);
int i = 0;
CcLinkParams staticSharedParams = (CcLinkParams) nullIfNone(args[i++]);
CcLinkParams staticNoSharedParams = (CcLinkParams) nullIfNone(args[i++]);
CcLinkParams noStaticSharedParams = (CcLinkParams) nullIfNone(args[i++]);
CcLinkParams noStaticNoSharedParams = (CcLinkParams) nullIfNone(args[i++]);
CcRunfiles ccRunfiles = (CcRunfiles) nullIfNone(args[i++]);
CcLinkingInfo.Builder ccLinkingInfoBuilder = CcLinkingInfo.Builder.create();
if (staticSharedParams != null) {
if (staticNoSharedParams == null
|| noStaticSharedParams == null
|| noStaticNoSharedParams == null) {
throw new EvalException(
loc,
"Every CcLinkParams parameter must be passed to CcLinkingInfo "
+ "if one of them is passed.");
}
ccLinkingInfoBuilder.setCcLinkParamsStore(
new CcLinkParamsStore(
staticSharedParams,
staticNoSharedParams,
noStaticSharedParams,
noStaticNoSharedParams));
}
// TODO(plf): The CcDynamicLibrariesForRuntime provider can be removed perhaps. Do not
// add to the API until we know for sure. The CcRunfiles provider is already in the API
// at the time of this comment (cl/200184914). Perhaps it can be removed but Skylark rules
// using it will have to be migrated.
ccLinkingInfoBuilder.setCcRunfiles(ccRunfiles);
return ccLinkingInfoBuilder.build();
}
};
private final CcLinkParamsStore ccLinkParamsStore;
private final CcRunfiles ccRunfiles;
private final CcDynamicLibrariesForRuntime ccDynamicLibrariesForRuntime;
@AutoCodec.Instantiator
@VisibleForSerialization
CcLinkingInfo(
CcLinkParamsStore ccLinkParamsStore,
CcRunfiles ccRunfiles,
CcDynamicLibrariesForRuntime ccDynamicLibrariesForRuntime) {
super(PROVIDER);
this.ccLinkParamsStore = ccLinkParamsStore;
this.ccRunfiles = ccRunfiles;
this.ccDynamicLibrariesForRuntime = ccDynamicLibrariesForRuntime;
}
public CcLinkParamsStore getCcLinkParamsStore() {
return ccLinkParamsStore;
}
@Override
public CcRunfiles getCcRunfiles() {
return ccRunfiles;
}
public CcDynamicLibrariesForRuntime getCcDynamicLibrariesForRuntime() {
return ccDynamicLibrariesForRuntime;
}
/** A Builder for {@link CcLinkingInfo}. */
public static class Builder {
CcLinkParamsStore ccLinkParamsStore;
CcRunfiles ccRunfiles;
CcDynamicLibrariesForRuntime ccDynamicLibrariesForRuntime;
public static CcLinkingInfo.Builder create() {
return new CcLinkingInfo.Builder();
}
public Builder setCcLinkParamsStore(CcLinkParamsStore ccLinkParamsStore) {
Preconditions.checkState(this.ccLinkParamsStore == null);
this.ccLinkParamsStore = ccLinkParamsStore;
return this;
}
public Builder setCcRunfiles(CcRunfiles ccRunfiles) {
Preconditions.checkState(this.ccRunfiles == null);
this.ccRunfiles = ccRunfiles;
return this;
}
public Builder setCcDynamicLibrariesForRuntime(
CcDynamicLibrariesForRuntime ccDynamicLibrariesForRuntime) {
Preconditions.checkState(this.ccDynamicLibrariesForRuntime == null);
this.ccDynamicLibrariesForRuntime = ccDynamicLibrariesForRuntime;
return this;
}
public CcLinkingInfo build() {
return new CcLinkingInfo(ccLinkParamsStore, ccRunfiles, ccDynamicLibrariesForRuntime);
}
}
}
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