| /* |
| * Copyright 2012-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.parser; |
| |
| import com.facebook.buck.model.BuildTarget; |
| import com.google.common.base.Preconditions; |
| import com.google.common.base.Strings; |
| |
| import javax.annotation.Nullable; |
| import javax.annotation.concurrent.Immutable; |
| |
| /** |
| * Context for parsing build target names. Fully-qualified target names are parsed the same |
| * regardless of the context. |
| */ |
| @Immutable |
| public class ParseContext { |
| |
| public enum Type { |
| BUILD_FILE, |
| FULLY_QUALIFIED, |
| |
| /** |
| * When parsing a build target for the visibility argument in a build file, targets must be |
| * fully-qualified, but wildcards are allowed. |
| */ |
| VISIBILITY, |
| ; |
| } |
| |
| private static final ParseContext FULLY_QUALIFIED = new ParseContext(Type.FULLY_QUALIFIED, ""); |
| |
| private static final ParseContext VISIBILITY = new ParseContext(Type.VISIBILITY, ""); |
| |
| private final Type type; |
| @Nullable |
| private final String baseName; |
| |
| private ParseContext(Type type, String baseName) { |
| this.type = type; |
| this.baseName = baseName; |
| } |
| |
| public Type getType() { |
| return type; |
| } |
| |
| @Nullable |
| public String getBaseName() { |
| return baseName; |
| } |
| |
| @Nullable |
| public String getBaseNameWithSlash() { |
| return BuildTarget.getBaseNameWithSlash(baseName); |
| } |
| |
| /** |
| * Used when parsing target names relative to another target, such as in a build file. |
| * @param baseName name such as {@code //first-party/orca} |
| */ |
| public static ParseContext forBaseName(String baseName) { |
| Preconditions.checkNotNull(Strings.emptyToNull(baseName)); |
| return new ParseContext(Type.BUILD_FILE, baseName); |
| } |
| |
| /** |
| * Used when parsing target names in the {@code visibility} argument to a build rule. |
| */ |
| public static ParseContext forVisibilityArgument() { |
| return VISIBILITY; |
| } |
| |
| /** |
| * Used when parsing fully-qualified target names only, such as from the command line. |
| */ |
| public static ParseContext fullyQualified() { |
| return FULLY_QUALIFIED; |
| } |
| } |