@Override
public boolean flip(PsiElement left, PsiElement right) {
if (left instanceof PsiVariable && right instanceof PsiVariable) {
final PsiElement first = left.getFirstChild();
if (!(first instanceof PsiModifierList)) {
return false;
}
final PsiElement child = PsiTreeUtil.skipSiblingsForward(first, PsiWhiteSpace.class);
if (!(child instanceof PsiTypeElement)) {
return false;
}
final PsiElement last = child.getNextSibling();
if (!(last instanceof PsiWhiteSpace)) {
return false;
}
final PsiElement anchor = right.getFirstChild();
if (!(anchor instanceof PsiIdentifier)) {
return false;
}
final PsiElement semiColon = right.getLastChild();
if (!(semiColon instanceof PsiJavaToken)) {
return false;
}
right.addRangeBefore(first, last, anchor);
left.deleteChildRange(first, last);
left.add(semiColon);
semiColon.delete();
final PsiElement copy = left.copy();
left.replace(right);
right.replace(copy);
return true;
}
return false;
}
public void replace(final ReplacementInfo info, ReplaceOptions options) {
PsiElement elementToReplace = info.getMatch(0);
PsiElement elementParent = elementToReplace.getParent();
String replacementToMake = info.getReplacement();
Project project = myContext.getProject();
PsiElement el = findRealSubstitutionElement(elementToReplace);
boolean listContext = isListContext(el);
if (el instanceof PsiAnnotation && !StringUtil.startsWithChar(replacementToMake, '@')) {
replacementToMake = "@" + replacementToMake;
}
PsiElement[] statements =
ReplacerUtil.createTreeForReplacement(
replacementToMake,
el instanceof PsiMember && !isSymbolReplacement(el)
? PatternTreeContext.Class
: PatternTreeContext.Block,
myContext);
if (listContext) {
if (statements.length > 1) {
elementParent.addRangeBefore(
statements[0], statements[statements.length - 1], elementToReplace);
} else if (statements.length == 1) {
PsiElement replacement = getMatchExpr(statements[0], elementToReplace);
handleModifierList(el, replacement);
replacement = handleSymbolReplacement(replacement, el);
if (replacement instanceof PsiTryStatement) {
final List<PsiCatchSection> unmatchedCatchSections =
el.getUserData(JavaMatchingVisitor.UNMATCHED_CATCH_SECTION_CONTENT_VAR_KEY);
final PsiCatchSection[] catches = ((PsiTryStatement) replacement).getCatchSections();
if (unmatchedCatchSections != null) {
for (int i = unmatchedCatchSections.size() - 1; i >= 0; --i) {
final PsiParameter parameter = unmatchedCatchSections.get(i).getParameter();
final PsiElementFactory elementFactory =
JavaPsiFacade.getInstance(project).getElementFactory();
final PsiCatchSection catchSection =
elementFactory.createCatchSection(parameter.getType(), parameter.getName(), null);
catchSection.getCatchBlock().replace(unmatchedCatchSections.get(i).getCatchBlock());
replacement.addAfter(catchSection, catches[catches.length - 1]);
replacement.addBefore(createWhiteSpace(replacement), replacement.getLastChild());
}
}
}
try {
final PsiElement inserted = elementParent.addBefore(replacement, elementToReplace);
if (replacement instanceof PsiComment
&& (elementParent instanceof PsiIfStatement
|| elementParent instanceof PsiLoopStatement)) {
elementParent.addAfter(createSemicolon(replacement), inserted);
}
} catch (IncorrectOperationException e) {
elementToReplace.replace(replacement);
}
}
} else if (statements.length > 0) {
PsiElement replacement =
ReplacerUtil.copySpacesAndCommentsBefore(
elementToReplace, statements, replacementToMake, elementParent);
replacement = getMatchExpr(replacement, elementToReplace);
if (replacement instanceof PsiStatement
&& !(replacement.getLastChild() instanceof PsiJavaToken)
&& !(replacement.getLastChild() instanceof PsiComment)) {
// assert w/o ;
final PsiElement prevLastChildInParent = replacement.getLastChild().getPrevSibling();
if (prevLastChildInParent != null) {
elementParent.addRangeBefore(replacement.getFirstChild(), prevLastChildInParent, el);
} else {
elementParent.addBefore(replacement.getFirstChild(), el);
}
el.getNode().getTreeParent().removeChild(el.getNode());
} else {
// preserve comments
handleModifierList(el, replacement);
if (replacement instanceof PsiClass) {
// modifier list
final PsiStatement[] searchStatements = getCodeBlock().getStatements();
if (searchStatements.length > 0
&& searchStatements[0] instanceof PsiDeclarationStatement
&& ((PsiDeclarationStatement) searchStatements[0]).getDeclaredElements()[0]
instanceof PsiClass) {
final PsiClass replaceClazz = (PsiClass) replacement;
final PsiClass queryClazz =
(PsiClass) ((PsiDeclarationStatement) searchStatements[0]).getDeclaredElements()[0];
final PsiClass clazz = (PsiClass) el;
if (replaceClazz.getExtendsList().getTextLength() == 0
&& queryClazz.getExtendsList().getTextLength() == 0
&& clazz.getExtendsList().getTextLength() != 0) {
replaceClazz.addBefore(
clazz.getExtendsList().getPrevSibling(),
replaceClazz.getExtendsList()); // whitespace
replaceClazz
.getExtendsList()
.addRange(
clazz.getExtendsList().getFirstChild(),
clazz.getExtendsList().getLastChild());
}
if (replaceClazz.getImplementsList().getTextLength() == 0
&& queryClazz.getImplementsList().getTextLength() == 0
&& clazz.getImplementsList().getTextLength() != 0) {
replaceClazz.addBefore(
clazz.getImplementsList().getPrevSibling(),
replaceClazz.getImplementsList()); // whitespace
replaceClazz
.getImplementsList()
.addRange(
clazz.getImplementsList().getFirstChild(),
clazz.getImplementsList().getLastChild());
}
if (replaceClazz.getTypeParameterList().getTextLength() == 0
&& queryClazz.getTypeParameterList().getTextLength() == 0
&& clazz.getTypeParameterList().getTextLength() != 0) {
// skip < and >
replaceClazz.getTypeParameterList().replace(clazz.getTypeParameterList());
}
}
}
replacement = handleSymbolReplacement(replacement, el);
el.replace(replacement);
}
} else {
final PsiElement nextSibling = el.getNextSibling();
el.delete();
if (nextSibling instanceof PsiWhiteSpace && nextSibling.isValid()) {
nextSibling.delete();
}
}
if (listContext) {
final int matchSize = info.getMatchesCount();
for (int i = 0; i < matchSize; ++i) {
PsiElement matchElement = info.getMatch(i);
PsiElement element = findRealSubstitutionElement(matchElement);
if (element == null) continue;
PsiElement firstToDelete = element;
PsiElement lastToDelete = element;
PsiElement prevSibling = element.getPrevSibling();
PsiElement nextSibling = element.getNextSibling();
if (prevSibling instanceof PsiWhiteSpace) {
firstToDelete = prevSibling;
prevSibling = prevSibling != null ? prevSibling.getPrevSibling() : null;
} else if (prevSibling == null && nextSibling instanceof PsiWhiteSpace) {
lastToDelete = nextSibling;
}
if (nextSibling instanceof XmlText && i + 1 < matchSize) {
final PsiElement next = info.getMatch(i + 1);
if (next != null && next == nextSibling.getNextSibling()) {
lastToDelete = nextSibling;
}
}
if (element instanceof PsiExpression) {
final PsiElement parent = element.getParent().getParent();
if ((parent instanceof PsiCall || parent instanceof PsiAnonymousClass)
&& prevSibling instanceof PsiJavaToken
&& ((PsiJavaToken) prevSibling).getTokenType() == JavaTokenType.COMMA) {
firstToDelete = prevSibling;
}
} else if (element instanceof PsiParameter
&& prevSibling instanceof PsiJavaToken
&& ((PsiJavaToken) prevSibling).getTokenType() == JavaTokenType.COMMA) {
firstToDelete = prevSibling;
}
element.getParent().deleteChildRange(firstToDelete, lastToDelete);
}
}
}