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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
// 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.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.analysis.config.ConfigMatchingProvider;
import com.google.devtools.build.lib.analysis.config.RunUnder;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.packages.OutputFile;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.rules.SkylarkApiProvider;
import com.google.devtools.build.lib.util.Preconditions;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* A generic implementation of RuleConfiguredTarget. Do not use directly. Use {@link
* RuleConfiguredTargetBuilder} instead.
*/
public final class RuleConfiguredTarget extends AbstractConfiguredTarget {
/**
* The configuration transition for an attribute through which a prerequisite
* is requested.
*/
public enum Mode {
TARGET,
HOST,
DATA,
SPLIT,
DONT_CHECK
}
private final ImmutableMap<Class<? extends TransitiveInfoProvider>, Object> providers;
private final ImmutableMap<Label, ConfigMatchingProvider> configConditions;
RuleConfiguredTarget(RuleContext ruleContext,
ImmutableMap<String, Object> skylarkProviders,
Map<Class<? extends TransitiveInfoProvider>, TransitiveInfoProvider> providers) {
super(ruleContext);
// We don't use ImmutableMap.Builder here to allow augmenting the initial list of 'default'
// providers by passing them in.
Map<Class<? extends TransitiveInfoProvider>, Object> providerBuilder = new LinkedHashMap<>();
providerBuilder.putAll(providers);
Preconditions.checkState(providerBuilder.containsKey(RunfilesProvider.class));
Preconditions.checkState(providerBuilder.containsKey(FileProvider.class));
Preconditions.checkState(providerBuilder.containsKey(FilesToRunProvider.class));
// Initialize every SkylarkApiProvider
for (Object provider : skylarkProviders.values()) {
if (provider instanceof SkylarkApiProvider) {
((SkylarkApiProvider) provider).init(this);
}
}
providerBuilder.put(SkylarkProviders.class, new SkylarkProviders(skylarkProviders));
this.providers = ImmutableMap.copyOf(providerBuilder);
this.configConditions = ruleContext.getConfigConditions();
// If this rule is the run_under target, then check that we have an executable; note that
// run_under is only set in the target configuration, and the target must also be analyzed for
// the target configuration.
RunUnder runUnder = getConfiguration().getRunUnder();
if (runUnder != null && getLabel().equals(runUnder.getLabel())) {
if (getProvider(FilesToRunProvider.class).getExecutable() == null) {
ruleContext.ruleError("run_under target " + runUnder.getLabel() + " is not executable");
}
}
// Make sure that all declared output files are also created as artifacts. The
// CachingAnalysisEnvironment makes sure that they all have generating actions.
if (!ruleContext.hasErrors()) {
for (OutputFile out : ruleContext.getRule().getOutputFiles()) {
ruleContext.createOutputArtifact(out);
}
}
}
/**
* The configuration conditions that trigger this rule's configurable attributes.
*/
ImmutableMap<Label, ConfigMatchingProvider> getConfigConditions() {
return configConditions;
}
@Override
public <P extends TransitiveInfoProvider> P getProvider(Class<P> providerClass) {
AnalysisUtils.checkProvider(providerClass);
// TODO(bazel-team): Should aspects be allowed to override providers on the configured target
// class?
Object provider = providers.get(providerClass);
if (provider == null) {
return null;
} else {
return providerClass.cast(provider);
}
}
/**
* Returns a value provided by this target. Only meant to use from Skylark.
*/
@Override
public Object get(String providerKey) {
return getProvider(SkylarkProviders.class).getValue(providerKey);
}
@Override
public final Rule getTarget() {
return (Rule) super.getTarget();
}
@Override
public String errorMessage(String name) {
return String.format("target (rule class of '%s') doesn't have provider '%s'.",
getTarget().getRuleClass(), name);
}
@Override
public ImmutableCollection<String> getKeys() {
return ImmutableList.<String>builder().addAll(super.getKeys())
.addAll(getProvider(SkylarkProviders.class).getKeys()).build();
}
}
|
