blob: 0201e2a8856cc7ac3a09ab9ebec3bdeb63371418 [file] [log] [blame]
// 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.testutil;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.packages.Attribute;
import com.google.devtools.build.lib.packages.AttributeMap;
import com.google.devtools.build.lib.packages.DependencyFilter;
import com.google.devtools.build.lib.packages.Type;
import java.util.List;
import java.util.Map;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import javax.annotation.Nullable;
/** Faked implementation of {@link AttributeMap} for use in testing. */
public class FakeAttributeMapper implements AttributeMap {
private final Map<String, FakeAttributeMapperEntry<?>> attrs;
private FakeAttributeMapper(Map<String, FakeAttributeMapperEntry<?>> attrs) {
this.attrs = ImmutableMap.copyOf(attrs);
}
@Override
public String getName() {
return "name";
}
@Override
public Label getLabel() {
return Label.parseAbsoluteUnchecked("//fake:rule");
}
@Override
public String getRuleClassName() {
return "fake_rule";
}
@Override
public boolean has(String attrName) {
return attrs.containsKey(attrName);
}
@Override
public <T> boolean has(String attrName, Type<T> type) {
FakeAttributeMapperEntry<?> entry = attrs.get(attrName);
if (entry == null) {
return false;
}
return entry.type.equals(type);
}
@Override
@Nullable
public <T> T get(String attributeName, Type<T> type) {
FakeAttributeMapperEntry<?> entry = attrs.get(attributeName);
if (entry == null) {
// Not specified in attributes or defaults
assertWithMessage("Attribute " + attributeName + " not in attributes!").fail();
return null;
}
return entry.validateAndGet(type);
}
@Override
public boolean isConfigurable(String attributeName) {
return false;
}
@Override
public Iterable<String> getAttributeNames() {
return attrs.keySet();
}
@Nullable
@Override
public Type<?> getAttributeType(String attrName) {
FakeAttributeMapperEntry<?> entry = attrs.get(attrName);
return entry == null ? null : entry.type;
}
@Nullable
@Override
public Attribute getAttributeDefinition(String attrName) {
return null;
}
@Override
public boolean isAttributeValueExplicitlySpecified(String attributeName) {
return attrs.containsKey(attributeName);
}
@Override
public void visitAllLabels(BiConsumer<Attribute, Label> consumer) {}
@Override
public void visitLabels(Attribute attribute, Consumer<Label> consumer) {}
@Override
public void visitLabels(DependencyFilter filter, BiConsumer<Attribute, Label> consumer) {}
@Override
public String getPackageDefaultHdrsCheck() {
return "???";
}
@Override
public Boolean getPackageDefaultTestOnly() {
return false;
}
@Override
public String getPackageDefaultDeprecation() {
return "???";
}
@Override
public ImmutableList<String> getPackageDefaultCopts() {
return ImmutableList.of();
}
public static FakeAttributeMapper empty() {
return builder().build();
}
public static Builder builder() {
return new Builder();
}
/**
* Builder to construct a {@link FakeAttributeMapper}. If no attributes are needed, use {@link
* #empty()} instead.
*/
public static class Builder {
private final ImmutableMap.Builder<String, FakeAttributeMapperEntry<?>> mapBuilder =
ImmutableMap.builder();
private Builder() {}
public Builder withStringList(String attribute, List<String> value) {
mapBuilder.put(attribute, FakeAttributeMapperEntry.forStringList(value));
return this;
}
public FakeAttributeMapper build() {
return new FakeAttributeMapper(mapBuilder.build());
}
}
private static class FakeAttributeMapperEntry<T> {
private final Type<T> type;
private final T value;
private FakeAttributeMapperEntry(Type<T> type, T value) {
this.type = type;
this.value = value;
}
private static FakeAttributeMapperEntry<List<String>> forStringList(List<String> list) {
return new FakeAttributeMapperEntry<>(Type.STRING_LIST, list);
}
private <U> U validateAndGet(Type<U> otherType) {
assertThat(type).isSameInstanceAs(otherType);
return otherType.cast(value);
}
}
}