| // 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.analysis; |
| |
| import com.google.devtools.build.lib.analysis.config.transitions.PatchTransition; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import javax.annotation.Nullable; |
| |
| /** |
| * Encapsulates the services available for implementors of the {@link RuleDefinition} |
| * interface. |
| */ |
| public interface RuleDefinitionEnvironment { |
| /** |
| * Parses the given string as a label and returns the label, by calling {@link |
| * Label#parseAbsolute}. Throws a {@link IllegalArgumentException} if the parsing fails. |
| */ |
| Label getLabel(String labelValue); |
| |
| /** |
| * Prepends the tools repository path to the given string and parses the result |
| * using {@link RuleDefinitionEnvironment#getLabel} |
| */ |
| Label getToolsLabel(String labelValue); |
| |
| /** |
| * Returns the tools repository prefix. |
| */ |
| String getToolsRepository(); |
| |
| /** |
| * Returns the label for Bazel binary launcher. |
| * In bazel, it should be //tools/launcher:launcher, otherwise it should be null. |
| * |
| * TODO(pcloudy): Remove this after Bazel rule definitions are not used internally anymore. |
| * Related bug b/63658220 |
| */ |
| @Nullable |
| Label getLauncherLabel(); |
| |
| /** |
| * Returns the C++ LIPO data transition, as defined in {@link |
| * com.google.devtools.build.lib.rules.cpp.transitions.DisableLipoTransition}. |
| * |
| * <p>This is language-specific, so doesn't really belong here. But since non-C++ rules declare |
| * this transition, we need universal access to it. The need for this interface should go away on |
| * the deprecation of LIPO for <a href="https://clang.llvm.org/docs/ThinLTO.html">ThinLTO</a>. |
| */ |
| PatchTransition getLipoDataTransition(); |
| } |