1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
// 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.skyframe;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration.Fragment;
import com.google.devtools.build.lib.analysis.config.BuildOptions;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
import com.google.devtools.build.lib.packages.RuleClassProvider;
import com.google.devtools.build.lib.util.Preconditions;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;
import java.io.Serializable;
import java.util.Objects;
import javax.annotation.Nullable;
/**
* A Skyframe node representing a build configuration fragment.
*/
@Immutable
@ThreadSafe
public class ConfigurationFragmentValue implements SkyValue {
@Nullable
private final BuildConfiguration.Fragment fragment;
ConfigurationFragmentValue(BuildConfiguration.Fragment fragment) {
this.fragment = fragment;
}
public BuildConfiguration.Fragment getFragment() {
return fragment;
}
@ThreadSafe
public static SkyKey key(BuildOptions buildOptions, Class<? extends Fragment> fragmentType,
RuleClassProvider ruleClassProvider) {
// For dynamic configurations, trim the options down to just those used by this fragment.
// This ensures we don't end up with different Skyframe keys due to trimming of unrelated
// options.
//
// We don't trim for static configurations because static configurations need to support
// LIPO and trimming breaks LIPO: it results in CppConfiguration instances being shared
// across configurations. That isn't safe because CppConfiguration mutates its state
// in prepareHook() for each configuration.
BuildOptions optionsKey =
buildOptions.get(BuildConfiguration.Options.class).useDynamicConfigurations
? buildOptions.trim(
BuildConfiguration.getOptionsClasses(
ImmutableList.<Class<? extends BuildConfiguration.Fragment>>of(fragmentType),
ruleClassProvider))
: buildOptions;
return new SkyKey(SkyFunctions.CONFIGURATION_FRAGMENT,
new ConfigurationFragmentKey(optionsKey, fragmentType));
}
static final class ConfigurationFragmentKey implements Serializable {
private final BuildOptions buildOptions;
private final Class<? extends Fragment> fragmentType;
public ConfigurationFragmentKey(BuildOptions buildOptions,
Class<? extends Fragment> fragmentType) {
this.buildOptions = Preconditions.checkNotNull(buildOptions);
this.fragmentType = Preconditions.checkNotNull(fragmentType);
}
public BuildOptions getBuildOptions() {
return buildOptions;
}
public Class<? extends Fragment> getFragmentType() {
return fragmentType;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof ConfigurationFragmentKey)) {
return false;
}
ConfigurationFragmentKey confObject = (ConfigurationFragmentKey) o;
return Objects.equals(fragmentType, confObject.fragmentType)
&& Objects.equals(buildOptions, confObject.buildOptions);
}
@Override
public int hashCode() {
return Objects.hash(buildOptions, fragmentType);
}
}
}
|
