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
|
/*
* 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.refactoring.inline;
import com.intellij.codeInsight.TargetElementUtilBase;
import com.intellij.lang.StdLanguages;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.progress.ProgressManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Ref;
import com.intellij.psi.*;
import com.intellij.psi.search.ProjectScope;
import com.intellij.psi.search.searches.ReferencesSearch;
import com.intellij.psi.util.PsiUtil;
import com.intellij.refactoring.HelpID;
import com.intellij.refactoring.RefactoringBundle;
import com.intellij.refactoring.util.CommonRefactoringUtil;
/**
* @author ven
*/
public class InlineConstantFieldHandler extends JavaInlineActionHandler {
private static final String REFACTORING_NAME = RefactoringBundle.message("inline.field.title");
@Override
public boolean canInlineElement(PsiElement element) {
return element instanceof PsiField && StdLanguages.JAVA.equals(element.getLanguage());
}
@Override
public void inlineElement(Project project, Editor editor, PsiElement element) {
final PsiElement navigationElement = element.getNavigationElement();
final PsiField field = (PsiField)(navigationElement instanceof PsiField ? navigationElement : element);
if (!field.hasInitializer()) {
String message = RefactoringBundle.message("no.initializer.present.for.the.field");
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.INLINE_FIELD);
return;
}
if (field instanceof PsiEnumConstant) {
String message = REFACTORING_NAME + " is not supported for enum constants";
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.INLINE_FIELD);
return;
}
if (ReferencesSearch.search(field, ProjectScope.getProjectScope(project), false).findFirst() == null) {
String message = RefactoringBundle.message("field.0.is.never.used", field.getName());
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.INLINE_FIELD);
return;
}
if (!field.hasModifierProperty(PsiModifier.FINAL)) {
final Ref<Boolean> hasWriteUsages = new Ref<Boolean>(false);
if (!ProgressManager.getInstance().runProcessWithProgressSynchronously(new Runnable() {
@Override
public void run() {
ApplicationManager.getApplication().runReadAction(new Runnable() {
@Override
public void run() {
for (PsiReference reference : ReferencesSearch.search(field)) {
final PsiElement referenceElement = reference.getElement();
if (!(referenceElement instanceof PsiExpression && PsiUtil.isAccessedForReading((PsiExpression)referenceElement))) {
hasWriteUsages.set(true);
break;
}
}
}
});
}
}, "Check if inline is possible...", true, project)) {
return;
}
if (hasWriteUsages.get()) {
String message = RefactoringBundle.message("0.refactoring.is.supported.only.for.final.fields", REFACTORING_NAME);
CommonRefactoringUtil.showErrorHint(project, editor, message, REFACTORING_NAME, HelpID.INLINE_FIELD);
return;
}
}
PsiReference reference = editor != null ? TargetElementUtilBase.findReference(editor, editor.getCaretModel().getOffset()) : null;
if (reference != null) {
final PsiElement resolve = reference.resolve();
if (resolve != null && !field.equals(resolve.getNavigationElement())) {
reference = null;
}
}
if ((!(element instanceof PsiCompiledElement) || reference == null) && !CommonRefactoringUtil.checkReadOnlyStatus(project, field)) return;
PsiReferenceExpression refExpression = reference instanceof PsiReferenceExpression ? (PsiReferenceExpression)reference : null;
InlineFieldDialog dialog = new InlineFieldDialog(project, field, refExpression);
dialog.show();
}
}
|
