| // 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.query.output; |
| |
| import com.google.devtools.build.lib.packages.Attribute; |
| import com.google.devtools.build.lib.packages.Rule; |
| |
| /** Where the value of an attribute comes from. */ |
| public enum AttributeValueSource { |
| /** Explicitly specified on the rule. */ |
| RULE, |
| |
| /** Package default. */ |
| PACKAGE, |
| |
| /** Rule class default. */ |
| DEFAULT; |
| |
| public static AttributeValueSource forRuleAndAttribute(Rule rule, Attribute attr) { |
| if (attr.getName().equals("visibility")) { |
| if (rule.isVisibilitySpecified()) { |
| return AttributeValueSource.RULE; |
| } else if (rule.getPackage().isDefaultVisibilitySet()) { |
| return AttributeValueSource.PACKAGE; |
| } else { |
| return AttributeValueSource.DEFAULT; |
| } |
| } else { |
| return rule.isAttributeValueExplicitlySpecified(attr) |
| ? AttributeValueSource.RULE |
| : AttributeValueSource.DEFAULT; |
| } |
| } |
| } |