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// Copyright 2017 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.analysis.platform;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.events.Location;
import com.google.devtools.build.lib.packages.Info;
import com.google.devtools.build.lib.packages.NativeProvider;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModuleCategory;
import com.google.devtools.build.lib.syntax.EvalException;
import com.google.devtools.build.lib.syntax.FunctionSignature;
import com.google.devtools.build.lib.syntax.SkylarkDict;
import com.google.devtools.build.lib.syntax.SkylarkType;
import java.util.Map;
/**
* A provider that supplied information about a specific language toolchain, including what platform
* constraints are required for execution and for the target platform.
*/
@SkylarkModule(
name = "ToolchainInfo",
doc = "Provides access to data about a specific toolchain.",
category = SkylarkModuleCategory.PROVIDER
)
@Immutable
public class ToolchainInfo extends Info {
/** Name used in Skylark for accessing this provider. */
public static final String SKYLARK_NAME = "ToolchainInfo";
private static final FunctionSignature.WithValues<Object, SkylarkType> SIGNATURE =
FunctionSignature.WithValues.create(
FunctionSignature.of(
/*numMandatoryPositionals=*/ 0,
/*numOptionalPositionals=*/ 0,
/*numMandatoryNamedOnly*/ 0,
/*starArg=*/ false,
/*kwArg=*/ true,
/*names=*/ "data"),
/*defaultValues=*/ null,
/*types=*/ ImmutableList.<SkylarkType>of(SkylarkType.DICT));
/** Skylark constructor and identifier for this provider. */
public static final NativeProvider<ToolchainInfo> PROVIDER =
new NativeProvider<ToolchainInfo>(ToolchainInfo.class, SKYLARK_NAME, SIGNATURE) {
@Override
protected ToolchainInfo createInstanceFromSkylark(Object[] args, Location loc)
throws EvalException {
Map<String, Object> data =
SkylarkDict.castSkylarkDictOrNoneToDict(args[0], String.class, Object.class, "data");
return ToolchainInfo.create(data, loc);
}
};
protected ToolchainInfo(Map<String, Object> toolchainData, Location loc) {
super(PROVIDER, ImmutableMap.copyOf(toolchainData), loc);
}
public static ToolchainInfo create(Map<String, Object> toolchainData) {
return create(toolchainData, Location.BUILTIN);
}
public static ToolchainInfo create(Map<String, Object> toolchainData, Location loc) {
return new ToolchainInfo(toolchainData, loc);
}
}
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