| // Copyright 2016 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; |
| |
| 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.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.skylarkbuildapi.TemplateVariableInfoApi; |
| 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.SkylarkDict; |
| import com.google.devtools.build.lib.syntax.SkylarkType; |
| import java.util.Map; |
| |
| /** Provides access to make variables from the current fragments. */ |
| @Immutable |
| @AutoCodec |
| public final class TemplateVariableInfo extends NativeInfo implements TemplateVariableInfoApi { |
| public static final String SKYLARK_NAME = "TemplateVariableInfo"; |
| |
| private static final FunctionSignature.WithValues<Object, SkylarkType> SIGNATURE = |
| FunctionSignature.WithValues.create( |
| FunctionSignature.of(/*numMandatory=*/ 1, "vars"), |
| /*defaultValues=*/ null, |
| /*types=*/ ImmutableList.<SkylarkType>of(SkylarkType.DICT)); |
| |
| public static final NativeProvider<TemplateVariableInfo> PROVIDER = |
| new NativeProvider<TemplateVariableInfo>( |
| TemplateVariableInfo.class, SKYLARK_NAME, SIGNATURE) { |
| @Override |
| protected TemplateVariableInfo createInstanceFromSkylark( |
| Object[] args, Environment env, Location loc) throws EvalException { |
| Map<String, String> vars = |
| SkylarkDict.castSkylarkDictOrNoneToDict(args[0], String.class, String.class, "vars"); |
| return new TemplateVariableInfo(ImmutableMap.copyOf(vars), location); |
| } |
| }; |
| |
| private final ImmutableMap<String, String> variables; |
| |
| @AutoCodec.Instantiator |
| public TemplateVariableInfo(ImmutableMap<String, String> variables, Location location) { |
| super(PROVIDER, ImmutableMap.of(), location); |
| this.variables = variables; |
| } |
| |
| @Override |
| public ImmutableMap<String, String> getVariables() { |
| return variables; |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| return other == this; |
| } |
| |
| @Override |
| public int hashCode() { |
| return System.identityHashCode(this); |
| } |
| } |