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
|
/*
* Copyright 2000-2009 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.daemon.impl.quickfix;
import com.intellij.codeInsight.CodeInsightBundle;
import com.intellij.codeInsight.CodeInsightUtilCore;
import com.intellij.codeInsight.FileModificationService;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.intellij.psi.codeStyle.CodeStyleManager;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author cdr
*/
public class CreateCastExpressionFromInstanceofAction extends CreateLocalVarFromInstanceofAction {
@Override
public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) {
boolean available = super.isAvailable(project, editor, file);
if (!available) return false;
PsiInstanceOfExpression instanceOfExpression = getInstanceOfExpressionAtCaret(editor, file);
if (instanceOfExpression == null) return false;
PsiTypeElement checkType = instanceOfExpression.getCheckType();
if (checkType == null) return false;
PsiType type = checkType.getType();
String castTo = type.getPresentableText();
setText(CodeInsightBundle.message("cast.to.0", castTo));
return true;
}
@Override
public void invoke(@NotNull final Project project, final Editor editor, final PsiFile file) {
if (!FileModificationService.getInstance().prepareFileForWrite(file)) return;
PsiInstanceOfExpression instanceOfExpression = getInstanceOfExpressionAtCaret(editor, file);
assert instanceOfExpression.getContainingFile() == file : instanceOfExpression.getContainingFile() + "; file="+file;
PsiElement decl = createAndInsertCast(instanceOfExpression, editor, file);
if (decl == null) return;
decl = CodeStyleManager.getInstance(project).reformat(CodeInsightUtilCore.forcePsiPostprocessAndRestoreElement(decl));
editor.getCaretModel().moveToOffset(decl.getTextRange().getEndOffset());
}
@Nullable
private static PsiElement createAndInsertCast(final PsiInstanceOfExpression instanceOfExpression, Editor editor, PsiFile file) throws IncorrectOperationException {
PsiElementFactory factory = JavaPsiFacade.getInstance(instanceOfExpression.getProject()).getElementFactory();
PsiExpressionStatement statement = (PsiExpressionStatement)factory.createStatementFromText("((a)b)", instanceOfExpression);
PsiParenthesizedExpression paren = (PsiParenthesizedExpression)statement.getExpression();
PsiTypeCastExpression cast = (PsiTypeCastExpression)paren.getExpression();
PsiType castType = instanceOfExpression.getCheckType().getType();
cast.getCastType().replace(factory.createTypeElement(castType));
cast.getOperand().replace(instanceOfExpression.getOperand());
final PsiStatement statementInside = isNegated(instanceOfExpression) ? null : getExpressionStatementInside(file, editor, instanceOfExpression.getOperand());
if (statementInside != null) {
return statementInside.replace(statement);
}
else {
return insertAtAnchor(instanceOfExpression, statement);
}
}
@Override
@NotNull
public String getFamilyName() {
return CodeInsightBundle.message("cast.expression");
}
}
|
