| /* |
| * Copyright 2014-present Facebook, Inc. |
| * |
| * 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.facebook.buck.rules.macros; |
| |
| import com.facebook.buck.io.ProjectFilesystem; |
| import com.facebook.buck.model.BuildTarget; |
| import com.facebook.buck.rules.BuildRuleResolver; |
| import com.google.common.collect.ImmutableList; |
| |
| public interface MacroExpander { |
| |
| /** |
| * Expand the input given for the this macro to some string. |
| */ |
| String expand( |
| BuildTarget target, |
| BuildRuleResolver resolver, |
| ProjectFilesystem filesystem, |
| String input) |
| throws MacroException; |
| |
| /** |
| * @return any build targets references by this macro. To be used in |
| * {@link com.facebook.buck.rules.ImplicitDepsInferringDescription#findDepsForTargetFromConstructorArgs} |
| * to extract implicit deps hidden behind macros. |
| */ |
| ImmutableList<BuildTarget> extractTargets(BuildTarget target, String input) |
| throws MacroException; |
| |
| } |