blob: 869e07911e355a517d8fbc838a1ff82fa4a3ac10 (
plain)
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
|
// 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.rules.objc;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.TransitiveInfoProvider;
import com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.packages.BuildType;
/**
* This provider is exported by j2objc_library to export entry class information necessary for
* J2ObjC dead code removal performed at the binary level in ObjC rules.
*/
@Immutable
public final class J2ObjcEntryClassProvider implements TransitiveInfoProvider {
private final NestedSet<String> entryClasses;
/**
* A builder for J2ObjcEntryClassProvider.
*/
public static class Builder {
private final NestedSetBuilder<String> entryClassesBuilder = NestedSetBuilder.stableOrder();
/**
* Constructs a new, empty J2ObjcEntryClassProvider builder.
*/
public Builder() {}
/**
* Transitively adds the given {@link J2ObjcEntryClassProvider}
* and all its properties to this builder.
*
* @param provider the J2ObjcEntryClassProvider to add
* @return this builder
*/
public Builder addTransitive(J2ObjcEntryClassProvider provider) {
entryClassesBuilder.addTransitive(provider.getEntryClasses());
return this;
}
/**
* Transitively adds the given {@link J2ObjcEntryClassProvider}s
* and all their properties to this builder.
*
* @param providers the J2ObjcEntryClassProviders to add
* @return this builder
*/
public Builder addTransitive(Iterable<J2ObjcEntryClassProvider> providers) {
for (J2ObjcEntryClassProvider provider : providers) {
addTransitive(provider);
}
return this;
}
/**
* Transitively adds all the J2ObjcEntryClassProviders and all their properties
* that can be reached through the "deps" attribute.
*
* @param ruleContext the rule context
* @return this builder
*/
public Builder addTransitive(RuleContext ruleContext) {
if (ruleContext.attributes().has("deps", BuildType.LABEL_LIST)) {
addTransitive(
ruleContext.getPrerequisites("deps", Mode.TARGET, J2ObjcEntryClassProvider.class));
}
return this;
}
/**
* Adds the given entry classes to this builder. See {@link #getEntryClasses()}.
*
* @param entryClasses the entry classes to add
* @return this builder
*/
public Builder addEntryClasses(Iterable<String> entryClasses) {
entryClassesBuilder.addAll(entryClasses);
return this;
}
/**
* Builds a J2ObjcEntryClassProvider from the information in this builder.
*
* @return the J2ObjcEntryClassProvider to be built
*/
public J2ObjcEntryClassProvider build() {
return new J2ObjcEntryClassProvider(entryClassesBuilder.build());
}
}
/**
* Constructs a {@link J2ObjcEntryClassProvider} to supply J2ObjC-translated ObjC sources to
* objc_binary for compilation and linking.
*
* @param entryClasses a set of names of Java classes to used as entry point for J2ObjC dead code
* analysis. The Java class names should be in canonical format as defined by the Java
* Language Specification.
*/
private J2ObjcEntryClassProvider(NestedSet<String> entryClasses) {
this.entryClasses = entryClasses;
}
/**
* Returns a set of entry classes specified on attribute entry_classes of j2objc_library targets
* transitively.
*/
public NestedSet<String> getEntryClasses() {
return entryClasses;
}
}
|
