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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.ClassObjectConstructor;
import com.google.devtools.build.lib.packages.NativeClassObjectConstructor;
import com.google.devtools.build.lib.packages.SkylarkClassObject;
import com.google.devtools.build.lib.packages.SkylarkProviderIdentifier;
import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModuleCategory;
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 SkylarkClassObject {
/** Name used in Skylark for accessing this provider. */
public static final String SKYLARK_NAME = "ToolchainInfo";
/** Skylark constructor and identifier for this provider. */
public static final ClassObjectConstructor SKYLARK_CONSTRUCTOR =
new NativeClassObjectConstructor(SKYLARK_NAME) {};
/** Identifier used to retrieve this provider from rules which export it. */
public static final SkylarkProviderIdentifier SKYLARK_IDENTIFIER =
SkylarkProviderIdentifier.forKey(SKYLARK_CONSTRUCTOR.getKey());
private final ClassObjectConstructor.Key toolchainConstructorKey;
private final ImmutableList<ConstraintValueInfo> execConstraints;
private final ImmutableList<ConstraintValueInfo> targetConstraints;
public ToolchainInfo(
ClassObjectConstructor.Key toolchainConstructorKey,
Iterable<ConstraintValueInfo> execConstraints,
Iterable<ConstraintValueInfo> targetConstraints,
Map<String, Object> toolchainData,
Location loc) {
this(
toolchainConstructorKey,
ImmutableList.copyOf(execConstraints),
ImmutableList.copyOf(targetConstraints),
toolchainData,
loc);
}
public ToolchainInfo(
ClassObjectConstructor.Key toolchainConstructorKey,
ImmutableList<ConstraintValueInfo> execConstraints,
ImmutableList<ConstraintValueInfo> targetConstraints,
Map<String, Object> toolchainData,
Location loc) {
super(
SKYLARK_CONSTRUCTOR,
ImmutableMap.<String, Object>builder()
.put("toolchain_type", toolchainConstructorKey)
.put("exec_compatible_with", execConstraints)
.put("target_compatible_with", targetConstraints)
.putAll(toolchainData)
.build(),
loc);
this.toolchainConstructorKey = toolchainConstructorKey;
this.execConstraints = execConstraints;
this.targetConstraints = targetConstraints;
}
public ClassObjectConstructor.Key toolchainConstructorKey() {
return toolchainConstructorKey;
}
@SkylarkCallable(
name = "exec_compatible_with",
doc = "The constraints on the execution platforms this toolchain supports.",
structField = true
)
public ImmutableList<ConstraintValueInfo> execConstraints() {
return execConstraints;
}
@SkylarkCallable(
name = "target_compatible_with",
doc = "The constraints on the target platforms this toolchain supports.",
structField = true
)
public ImmutableList<ConstraintValueInfo> targetConstraints() {
return targetConstraints;
}
}
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