// Copyright 2014 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.query2.engine; import com.google.common.collect.ImmutableList; import com.google.devtools.build.lib.query2.engine.QueryEnvironment.Argument; import com.google.devtools.build.lib.query2.engine.QueryEnvironment.ArgumentType; import java.util.List; /** * An attr(attribute, pattern, argument) filter expression, which computes the set of subset of * nodes in 'argument' which correspond to rules with defined attribute 'attribute' with attribute * value matching the unanchored regexp 'pattern'. For list attributes, the attribute value will be * defined as a usual List.toString() representation (using '[' as first character, ']' as last * character and ", " as a delimiter between multiple values). Also, all label-based attributes will * use fully-qualified label names instead of original value specified in the BUILD file. * *
expr ::= ATTR '(' ATTRNAME ',' WORD ',' expr ')'* * Examples * *
* attr(linkshared,1,//project/...) find all rules under in the //project/... that * have attribute linkshared set to 1. **/ public class AttrFunction extends RegexFilterExpression { AttrFunction() { } @Override public String getName() { return "attr"; } @Override protected String getPattern(List