| // 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.packages; |
| |
| import com.google.devtools.build.lib.packages.DependencyFilter.AttributeInfoProvider; |
| import com.google.devtools.build.lib.packages.Type.LabelClass; |
| import java.util.function.BiPredicate; |
| |
| /** |
| * A predicate that returns true if a dependency attribute should be included in the result of |
| * {@code blaze query}. Used to implement {@code --[no]implicit_deps}, {@code --[no]host_deps}, etc. |
| */ |
| public interface DependencyFilter extends BiPredicate<AttributeInfoProvider, Attribute> { |
| |
| /** Dependency predicate that includes all dependencies. */ |
| DependencyFilter ALL_DEPS = (infoProvider, attribute) -> true; |
| |
| /** Dependency predicate that excludes non-target dependencies. */ |
| DependencyFilter ONLY_TARGET_DEPS = (infoProvider, attribute) -> !attribute.isToolDependency(); |
| |
| /** Dependency predicate that excludes implicit dependencies. */ |
| DependencyFilter NO_IMPLICIT_DEPS = AttributeInfoProvider::isAttributeValueExplicitlySpecified; |
| |
| /** |
| * Dependency predicate that excludes those edges that are not present in the loading phase target |
| * dependency graph. |
| */ |
| DependencyFilter NO_NODEP_ATTRIBUTES = |
| (infoProvider, attribute) -> |
| attribute.getType().getLabelClass() != LabelClass.NONDEP_REFERENCE; |
| |
| /** |
| * Dependency predicate that excludes those edges that are not present in the loading phase target |
| * dependency graph but *does* include edges from the `visibility` attribute. |
| */ |
| DependencyFilter NO_NODEP_ATTRIBUTES_EXCEPT_VISIBILITY = |
| (infoProvider, attribute) -> |
| NO_NODEP_ATTRIBUTES.test(infoProvider, attribute) |
| || attribute.getName().equals("visibility"); |
| |
| @Override |
| default DependencyFilter and( |
| BiPredicate<? super AttributeInfoProvider, ? super Attribute> other) { |
| return BiPredicate.super.and(other)::test; |
| } |
| |
| /** Interface to provide information about attributes to dependency filters. */ |
| interface AttributeInfoProvider { |
| /** |
| * Returns true iff the value of the specified attribute is explicitly set in |
| * the BUILD file (as opposed to its default value). This also returns true if |
| * the value from the BUILD file is the same as the default value. |
| */ |
| boolean isAttributeValueExplicitlySpecified(Attribute attribute); |
| } |
| } |