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// 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.ImmutableMap;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.packages.BuiltinProvider;
import com.google.devtools.build.lib.packages.NativeInfo;
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.Dict;
import com.google.devtools.build.lib.syntax.EvalException;
import com.google.devtools.build.lib.syntax.Location;
import com.google.devtools.build.lib.syntax.StarlarkThread;
import java.util.Map;
/** Provides access to make variables from the current fragments. */
@Immutable
@AutoCodec
public final class TemplateVariableInfo extends NativeInfo implements TemplateVariableInfoApi {
/** Provider singleton constant. */
public static final BuiltinProvider<TemplateVariableInfo> PROVIDER = new Provider();
/** Provider for {@link TemplateVariableInfo} objects. */
private static class Provider extends BuiltinProvider<TemplateVariableInfo>
implements TemplateVariableInfoApi.Provider {
private Provider() {
super(NAME, TemplateVariableInfo.class);
}
@Override
public TemplateVariableInfo templateVariableInfo(Dict<?, ?> vars, StarlarkThread thread)
throws EvalException {
Map<String, String> varsMap = Dict.noneableCast(vars, String.class, String.class, "vars");
return new TemplateVariableInfo(ImmutableMap.copyOf(varsMap), thread.getCallerLocation());
}
}
private final ImmutableMap<String, String> variables;
@AutoCodec.Instantiator
public TemplateVariableInfo(ImmutableMap<String, String> variables, Location location) {
super(PROVIDER, 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);
}
}