| // Copyright 2016 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.skyframe; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Interner; |
| import com.google.devtools.build.lib.concurrent.BlazeInterners; |
| import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec; |
| import com.google.devtools.build.lib.syntax.StarlarkFile; |
| import com.google.devtools.build.lib.vfs.RootedPath; |
| import com.google.devtools.build.skyframe.AbstractSkyKey; |
| import com.google.devtools.build.skyframe.SkyFunctionName; |
| import com.google.devtools.build.skyframe.SkyValue; |
| import java.util.List; |
| |
| /** |
| * A SkyValue that stores the parsed WORKSPACE file as a list of AST. Each AST contains the part |
| * of the WORKSPACE file between the first load statement of a series of load statements and the |
| * last statement before the next load statement. As example, the comment indicate where the next |
| * file would be split: |
| * |
| * <p><code> |
| * # First AST |
| * load('//foo:bar.bzl', 'foobar') |
| * foo_bar = 1 |
| * |
| * # Second AST |
| * load('//foo:baz.bzl', 'foos') |
| * load('//bar:foo.bzl', 'bars') |
| * foos() |
| * bars() |
| * |
| * # Third AST |
| * load('//:bleh.bzl', 'bleh') |
| * </code> |
| */ |
| public class WorkspaceASTValue implements SkyValue { |
| |
| private final ImmutableList<StarlarkFile> asts; |
| |
| public WorkspaceASTValue(List<StarlarkFile> asts) { |
| Preconditions.checkNotNull(asts); |
| this.asts = ImmutableList.copyOf(asts); |
| } |
| |
| public ImmutableList<StarlarkFile> getASTs() { |
| return asts; |
| } |
| |
| public static Key key(RootedPath path) { |
| return Key.create(path); |
| } |
| |
| @AutoCodec.VisibleForSerialization |
| @AutoCodec |
| static class Key extends AbstractSkyKey<RootedPath> { |
| private static final Interner<Key> interner = BlazeInterners.newWeakInterner(); |
| |
| private Key(RootedPath arg) { |
| super(arg); |
| } |
| |
| @AutoCodec.VisibleForSerialization |
| @AutoCodec.Instantiator |
| static Key create(RootedPath arg) { |
| return interner.intern(new Key(arg)); |
| } |
| |
| @Override |
| public SkyFunctionName functionName() { |
| return SkyFunctions.WORKSPACE_AST; |
| } |
| } |
| } |