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
|
/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* 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.intellij.codeInsight;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.psi.*;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.Collections;
import java.util.Set;
/**
* @author peter
*/
public class AnnotationTargetUtil {
public static final Set<PsiAnnotation.TargetType> DEFAULT_TARGETS = Collections.unmodifiableSet(ContainerUtil.newHashSet(
PsiAnnotation.TargetType.PACKAGE, PsiAnnotation.TargetType.TYPE, PsiAnnotation.TargetType.ANNOTATION_TYPE,
PsiAnnotation.TargetType.FIELD, PsiAnnotation.TargetType.METHOD, PsiAnnotation.TargetType.CONSTRUCTOR,
PsiAnnotation.TargetType.PARAMETER, PsiAnnotation.TargetType.LOCAL_VARIABLE));
private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.AnnotationUtil");
private static final PsiAnnotation.TargetType[] PACKAGE_TARGETS = {PsiAnnotation.TargetType.PACKAGE};
private static final PsiAnnotation.TargetType[] TYPE_USE_TARGETS = {PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] ANNOTATION_TARGETS = {PsiAnnotation.TargetType.ANNOTATION_TYPE, PsiAnnotation.TargetType.TYPE, PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] TYPE_TARGETS = {PsiAnnotation.TargetType.TYPE, PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] TYPE_PARAMETER_TARGETS = {
PsiAnnotation.TargetType.TYPE_PARAMETER, PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] CONSTRUCTOR_TARGETS = {PsiAnnotation.TargetType.CONSTRUCTOR, PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] METHOD_TARGETS = {PsiAnnotation.TargetType.METHOD, PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] FIELD_TARGETS = {PsiAnnotation.TargetType.FIELD, PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] PARAMETER_TARGETS = {PsiAnnotation.TargetType.PARAMETER, PsiAnnotation.TargetType.TYPE_USE};
private static final PsiAnnotation.TargetType[] LOCAL_VARIABLE_TARGETS ={
PsiAnnotation.TargetType.LOCAL_VARIABLE, PsiAnnotation.TargetType.TYPE_USE};
@NotNull
public static PsiAnnotation.TargetType[] getTargetsForLocation(@Nullable PsiAnnotationOwner owner) {
if (owner == null) {
return PsiAnnotation.TargetType.EMPTY_ARRAY;
}
if (owner instanceof PsiType || owner instanceof PsiTypeElement) {
return TYPE_USE_TARGETS;
}
if (owner instanceof PsiTypeParameter) {
return TYPE_PARAMETER_TARGETS;
}
if (owner instanceof PsiModifierList) {
PsiElement element = ((PsiModifierList)owner).getParent();
if (element instanceof PsiPackageStatement) {
return PACKAGE_TARGETS;
}
if (element instanceof PsiClass) {
if (((PsiClass)element).isAnnotationType()) {
return ANNOTATION_TARGETS;
}
else {
return TYPE_TARGETS;
}
}
if (element instanceof PsiMethod) {
if (((PsiMethod)element).isConstructor()) {
return CONSTRUCTOR_TARGETS;
}
else {
return METHOD_TARGETS;
}
}
if (element instanceof PsiField) {
return FIELD_TARGETS;
}
if (element instanceof PsiParameter) {
return PARAMETER_TARGETS;
}
if (element instanceof PsiLocalVariable) {
return LOCAL_VARIABLE_TARGETS;
}
}
return PsiAnnotation.TargetType.EMPTY_ARRAY;
}
@Nullable
public static Set<PsiAnnotation.TargetType> extractRequiredAnnotationTargets(@Nullable PsiAnnotationMemberValue value) {
if (value instanceof PsiReference) {
PsiAnnotation.TargetType targetType = translateTargetRef((PsiReference)value);
if (targetType != null) {
return Collections.singleton(targetType);
}
}
else if (value instanceof PsiArrayInitializerMemberValue) {
Set <PsiAnnotation.TargetType> targets = ContainerUtil.newHashSet();
for (PsiAnnotationMemberValue initializer : ((PsiArrayInitializerMemberValue)value).getInitializers()) {
if (initializer instanceof PsiReference) {
PsiAnnotation.TargetType targetType = translateTargetRef((PsiReference)initializer);
if (targetType != null) {
targets.add(targetType);
}
}
}
return targets;
}
return null;
}
@Nullable
private static PsiAnnotation.TargetType translateTargetRef(@NotNull PsiReference reference) {
PsiElement field = reference.resolve();
if (field instanceof PsiEnumConstant) {
String name = ((PsiEnumConstant)field).getName();
try {
return PsiAnnotation.TargetType.valueOf(name);
}
catch (IllegalArgumentException e) {
LOG.warn("Unknown target: " + name);
}
}
return null;
}
}
|
