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
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* Copyright (C) 2019 The Dagger Authors.
*
* 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 dagger.hilt.processor.internal.definecomponent;
import static dagger.internal.codegen.extension.DaggerStreams.toImmutableList;
import static dagger.internal.codegen.extension.DaggerStreams.toImmutableSet;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ListMultimap;
import com.squareup.javapoet.ClassName;
import dagger.hilt.processor.internal.ClassNames;
import dagger.hilt.processor.internal.ComponentDescriptor;
import dagger.hilt.processor.internal.ProcessorErrors;
import dagger.hilt.processor.internal.definecomponent.DefineComponentBuilderMetadatas.DefineComponentBuilderMetadata;
import dagger.hilt.processor.internal.definecomponent.DefineComponentMetadatas.DefineComponentMetadata;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.lang.model.util.Elements;
/**
* A utility class for getting {@link DefineComponentMetadata} and {@link
* DefineComponentBuilderMetadata}.
*/
public final class DefineComponents {
public static DefineComponents create() {
return new DefineComponents();
}
private final Map<Element, ComponentDescriptor> componentDescriptors = new HashMap<>();
private final DefineComponentMetadatas componentMetadatas = DefineComponentMetadatas.create();
private final DefineComponentBuilderMetadatas componentBuilderMetadatas =
DefineComponentBuilderMetadatas.create(componentMetadatas);
private DefineComponents() {}
/** Returns the {@link ComponentDescriptor} for the given component element. */
// TODO(b/144940889): This descriptor doesn't contain the "creator" or the "installInName".
public ComponentDescriptor componentDescriptor(Element element) {
if (!componentDescriptors.containsKey(element)) {
componentDescriptors.put(element, uncachedComponentDescriptor(element));
}
return componentDescriptors.get(element);
}
private ComponentDescriptor uncachedComponentDescriptor(Element element) {
DefineComponentMetadata metadata = componentMetadatas.get(element);
ComponentDescriptor.Builder builder =
ComponentDescriptor.builder()
.component(ClassName.get(metadata.component()))
.scopes(metadata.scopes().stream().map(ClassName::get).collect(toImmutableSet()));
metadata.parentMetadata()
.map(DefineComponentMetadata::component)
.map(this::componentDescriptor)
.ifPresent(builder::parent);
return builder.build();
}
/** Returns the set of aggregated {@link ComponentDescriptor}s. */
public ImmutableSet<ComponentDescriptor> getComponentDescriptors(Elements elements) {
ImmutableSet<DefineComponentClassesMetadata> aggregatedMetadatas =
DefineComponentClassesMetadata.from(elements);
ImmutableSet<DefineComponentMetadata> components =
aggregatedMetadatas.stream()
.filter(DefineComponentClassesMetadata::isComponent)
.map(DefineComponentClassesMetadata::element)
.map(componentMetadatas::get)
.collect(toImmutableSet());
ImmutableSet<DefineComponentBuilderMetadata> builders =
aggregatedMetadatas.stream()
.filter(DefineComponentClassesMetadata::isComponentBuilder)
.map(DefineComponentClassesMetadata::element)
.map(componentBuilderMetadatas::get)
.collect(toImmutableSet());
ListMultimap<DefineComponentMetadata, DefineComponentBuilderMetadata> builderMultimap =
ArrayListMultimap.create();
builders.forEach(builder -> builderMultimap.put(builder.componentMetadata(), builder));
// Check that there are not multiple builders per component
for (DefineComponentMetadata componentMetadata : builderMultimap.keySet()) {
TypeElement component = componentMetadata.component();
ProcessorErrors.checkState(
builderMultimap.get(componentMetadata).size() <= 1,
component,
"Multiple @%s declarations are not allowed for @%s type, %s. Found: %s",
ClassNames.DEFINE_COMPONENT_BUILDER,
ClassNames.DEFINE_COMPONENT,
component,
builderMultimap.get(componentMetadata).stream()
.map(DefineComponentBuilderMetadata::builder)
.map(TypeElement::toString)
.sorted()
.collect(toImmutableList()));
}
// Now that we know there is at most 1 builder per component, convert the Multimap to Map.
Map<DefineComponentMetadata, DefineComponentBuilderMetadata> builderMap = new LinkedHashMap<>();
builderMultimap.entries().forEach(e -> builderMap.put(e.getKey(), e.getValue()));
return components.stream()
.map(componentMetadata -> toComponentDescriptor(componentMetadata, builderMap))
.collect(toImmutableSet());
}
private static ComponentDescriptor toComponentDescriptor(
DefineComponentMetadata componentMetadata,
Map<DefineComponentMetadata, DefineComponentBuilderMetadata> builderMap) {
ComponentDescriptor.Builder builder =
ComponentDescriptor.builder()
.component(ClassName.get(componentMetadata.component()))
.scopes(
componentMetadata.scopes().stream().map(ClassName::get).collect(toImmutableSet()));
if (builderMap.containsKey(componentMetadata)) {
builder.creator(ClassName.get(builderMap.get(componentMetadata).builder()));
}
componentMetadata
.parentMetadata()
.map(parent -> toComponentDescriptor(parent, builderMap))
.ifPresent(builder::parent);
return builder.build();
}
}
|
