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
|
/*
* Copyright 2000-2013 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 org.jetbrains.idea.devkit.inspections;
import com.intellij.codeInsight.daemon.ImplicitUsageProvider;
import com.intellij.psi.*;
import com.intellij.psi.util.InheritanceUtil;
import org.jetbrains.annotations.Nullable;
/**
* @author anna
*/
public class DevKitImplicitUsageProvider implements ImplicitUsageProvider {
@Override
public boolean isImplicitUsage(PsiElement element) {
if (element instanceof PsiClass) {
final PsiClass psiClass = (PsiClass)element;
return isDomElementClass(psiClass);
}
if (element instanceof PsiMethod) {
PsiMethod psiMethod = (PsiMethod)element;
return isDomElementMethod(psiMethod);
}
return false;
}
@Override
public boolean isImplicitRead(PsiElement element) {
return false;
}
@Override
public boolean isImplicitWrite(PsiElement element) {
return false;
}
static boolean isDomElementClass(PsiClass psiClass) {
if (psiClass.isEnum() ||
psiClass.isAnnotationType() ||
psiClass.hasModifierProperty(PsiModifier.PRIVATE)) {
return false;
}
return isDomElementInheritor(psiClass);
}
private static boolean isDomElementMethod(PsiMethod psiMethod) {
if (!psiMethod.hasModifierProperty(PsiModifier.PUBLIC) ||
psiMethod.hasModifierProperty(PsiModifier.STATIC) ||
psiMethod.isConstructor() ||
psiMethod.getParameterList().getParametersCount() > 1) {
return false;
}
final PsiClass containingClass = psiMethod.getContainingClass();
if (containingClass == null) {
return false;
}
if (!isDomElementClass(containingClass)) {
return isDomElementVisitorMethod(psiMethod, containingClass);
}
final PsiType returnType = psiMethod.getReturnType();
if (!(returnType instanceof PsiClassType)) {
return false;
}
PsiClassType returnClassType = (PsiClassType)returnType;
// Dom getDom(), GenericAttributeValue<X> getAttr(), ...
final PsiClass returnResolved = returnClassType.resolve();
if (isDomElementInheritor(returnResolved)) {
return true;
}
// List<Dom> getDoms()
if (returnClassType.getParameterCount() == 1 &&
InheritanceUtil.isInheritor(returnResolved, CommonClassNames.JAVA_UTIL_LIST)) {
final PsiType listType = returnClassType.getParameters()[0];
return isDomElementInheritor(listType);
}
return false;
}
private static boolean isDomElementVisitorMethod(PsiMethod method,
PsiClass containingClass) {
if (method.getReturnType() != PsiType.VOID ||
!method.getName().startsWith("visit") ||
method.getParameterList().getParametersCount() != 1 ||
!InheritanceUtil.isInheritor(containingClass, "com.intellij.util.xml.DomElementVisitor")) {
return false;
}
final PsiType psiType = method.getParameterList().getParameters()[0].getType();
return isDomElementInheritor(psiType);
}
private static boolean isDomElementInheritor(@Nullable PsiType psiType) {
return InheritanceUtil.isInheritor(psiType, "com.intellij.util.xml.DomElement");
}
private static boolean isDomElementInheritor(@Nullable PsiClass psiClass) {
return InheritanceUtil.isInheritor(psiClass, "com.intellij.util.xml.DomElement");
}
}
|
