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
|
// Copyright 2017 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.rules.java;
import static com.google.devtools.build.lib.packages.Attribute.attr;
import static com.google.devtools.build.lib.packages.BuildType.LABEL;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.actions.MutableActionGraph.ActionConflictException;
import com.google.devtools.build.lib.analysis.AliasProvider;
import com.google.devtools.build.lib.analysis.BaseRuleClasses;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.RuleConfiguredTargetFactory;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.RuleDefinition;
import com.google.devtools.build.lib.analysis.RuleDefinitionEnvironment;
import com.google.devtools.build.lib.analysis.VisibilityProvider;
import com.google.devtools.build.lib.analysis.VisibilityProviderImpl;
import com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.packages.RuleClass;
import com.google.devtools.build.lib.rules.AliasConfiguredTarget;
/**
* Implementation of the {@code java_toolchain_alias} rule.
*/
public class JavaToolchainAlias implements RuleConfiguredTargetFactory {
@Override
public ConfiguredTarget create(RuleContext ruleContext)
throws InterruptedException, RuleErrorException, ActionConflictException {
ConfiguredTarget actual =
(ConfiguredTarget) ruleContext.getPrerequisite(":java_toolchain", Mode.TARGET);
return new AliasConfiguredTarget(
ruleContext,
actual,
ImmutableMap.of(
AliasProvider.class,
AliasProvider.fromAliasRule(ruleContext.getLabel(), actual),
VisibilityProvider.class,
new VisibilityProviderImpl(ruleContext.getVisibility())));
}
/**
* Rule definition for the {@code java_toolchain_alias} rule.
*/
public static class JavaToolchainAliasRule implements RuleDefinition {
@Override
public RuleClass build(RuleClass.Builder builder, RuleDefinitionEnvironment environment) {
return builder
.requiresConfigurationFragments(JavaConfiguration.class)
.removeAttribute("licenses")
.removeAttribute("distribs")
.add(attr(":java_toolchain", LABEL).value(JavaSemantics.JAVA_TOOLCHAIN))
.build();
}
@Override
public Metadata getMetadata() {
return Metadata.builder()
.name("java_toolchain_alias")
.ancestors(BaseRuleClasses.BaseRule.class)
.factoryClass(JavaToolchainAlias.class)
.build();
}
}
}
|
