@Override
protected void processIntention(@NotNull PsiElement element, Project project, Editor editor)
throws IncorrectOperationException {
if (!(element instanceof GrConditionalExpression)) {
throw new IncorrectOperationException("Not invoked on a conditional");
}
GroovyPsiElementFactory groovyPsiElementFactory = GroovyPsiElementFactory.getInstance(project);
GrConditionalExpression condExp = (GrConditionalExpression) element;
GrExpression thenBranch = condExp.getThenBranch();
GrExpression elseBranch = condExp.getElseBranch();
Object thenVal = GroovyConstantExpressionEvaluator.evaluate(thenBranch);
if (Boolean.TRUE.equals(thenVal) && elseBranch != null) {
// aaa ? true : bbb -> aaa || bbb
GrExpression conditionExp = condExp.getCondition();
String conditionExpText = getStringToPutIntoOrExpression(conditionExp);
String elseExpText = getStringToPutIntoOrExpression(elseBranch);
String newExp = conditionExpText + "||" + elseExpText;
int caretOffset = conditionExpText.length() + 2; // after "||"
GrExpression expressionFromText =
groovyPsiElementFactory.createExpressionFromText(newExp, condExp.getContext());
expressionFromText = (GrExpression) condExp.replace(expressionFromText);
editor
.getCaretModel()
.moveToOffset(expressionFromText.getTextOffset() + caretOffset); // just past "||"
return;
}
Object elseVal = GroovyConstantExpressionEvaluator.evaluate(elseBranch);
if (Boolean.FALSE.equals(elseVal) && thenBranch != null) {
// aaa ? bbb : false -> aaa && bbb
GrExpression conditionExp = condExp.getCondition();
String conditionExpText = getStringToPutIntoAndExpression(conditionExp);
String thenExpText = getStringToPutIntoAndExpression(thenBranch);
String newExp = conditionExpText + "&&" + thenExpText;
int caretOffset = conditionExpText.length() + 2; // after "&&"
GrExpression expressionFromText =
groovyPsiElementFactory.createExpressionFromText(newExp, condExp.getContext());
expressionFromText = (GrExpression) condExp.replace(expressionFromText);
editor
.getCaretModel()
.moveToOffset(expressionFromText.getTextOffset() + caretOffset); // just past "&&"
}
}
private static GrMethodCallExpression createMethodCall(ExtractInfoHelper helper) {
StringBuilder buffer = new StringBuilder();
buffer.append(helper.getName()).append("(");
int number = 0;
for (ParameterInfo info : helper.getParameterInfos()) {
if (info.passAsParameter()) number++;
}
int i = 0;
String[] argumentNames = helper.getArgumentNames();
for (String argName : argumentNames) {
if (argName.length() > 0) {
buffer.append(argName);
if (i < number - 1) {
buffer.append(",");
}
i++;
}
}
buffer.append(")");
String callText = buffer.toString();
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(helper.getProject());
GrExpression expr = factory.createExpressionFromText(callText);
LOG.assertTrue(expr instanceof GrMethodCallExpression, callText);
return ((GrMethodCallExpression) expr);
}
@Override
public void visitReferenceExpression(GrReferenceExpression expression) {
super.visitReferenceExpression(expression);
if (expression.getCopyableUserData(SUPER_REF) != null) {
expression.putCopyableUserData(SUPER_REF, null);
final GrExpression qualifier = expression.getQualifier();
if (qualifier instanceof GrReferenceExpression
&& ((GrReferenceExpression) qualifier).isReferenceTo(mySourceClass)) {
try {
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(myProject);
GrExpression newExpr =
factory.createExpressionFromText(myTargetSuperClass.getName() + ".this", null);
expression.replace(newExpr);
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
} else if (expression.getCopyableUserData(THIS_REF) != null) {
expression.putCopyableUserData(THIS_REF, null);
final GrExpression qualifier = expression.getQualifier();
if (qualifier instanceof GrReferenceExpression
&& ((GrReferenceExpression) qualifier).isReferenceTo(mySourceClass)) {
try {
((GrReferenceExpression) qualifier).bindToElement(myTargetSuperClass);
GroovyChangeContextUtil.clearContextInfo(qualifier);
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
}
}
private void fixReferencesToStatic(GroovyPsiElement classMember, Set<PsiMember> movedMembers)
throws IncorrectOperationException {
final StaticReferencesCollector collector = new StaticReferencesCollector(movedMembers);
classMember.accept(collector);
ArrayList<GrReferenceElement> refs = collector.getReferences();
ArrayList<PsiElement> members = collector.getReferees();
ArrayList<PsiClass> classes = collector.getRefereeClasses();
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(myProject);
for (int i = 0; i < refs.size(); i++) {
GrReferenceElement ref = refs.get(i);
PsiElement namedElement = members.get(i);
PsiClass aClass = classes.get(i);
if (namedElement instanceof PsiNamedElement) {
GrReferenceExpression newRef =
(GrReferenceExpression)
factory.createExpressionFromText(
"a." + ((PsiNamedElement) namedElement).getName(), null);
GrExpression qualifier = newRef.getQualifierExpression();
assert qualifier != null;
qualifier =
(GrExpression)
qualifier.replace(
factory.createReferenceExpressionFromText(aClass.getQualifiedName()));
qualifier.putCopyableUserData(PRESERVE_QUALIFIER, ref.isQualified());
PsiElement replaced = ref.replace(newRef);
JavaCodeStyleManager.getInstance(myProject).shortenClassReferences(replaced);
}
}
}
@Override
protected void processIntention(@NotNull PsiElement element, Project project, Editor editor)
throws IncorrectOperationException {
PsiElement parent = element.getParent();
if (!"if".equals(element.getText()) || !(parent instanceof GrIfStatement)) {
throw new IncorrectOperationException("Not invoked on an if");
}
GrIfStatement parentIf = (GrIfStatement) parent;
GroovyPsiElementFactory groovyPsiElementFactory = GroovyPsiElementFactory.getInstance(project);
GrExpression condition = parentIf.getCondition();
if (condition == null) {
throw new IncorrectOperationException("Invoked on an if with empty condition");
}
GrExpression negatedCondition = null;
if (condition instanceof GrUnaryExpression) {
GrUnaryExpression unaryCondition = (GrUnaryExpression) condition;
if ("!".equals(unaryCondition.getOperationToken().getText())) {
negatedCondition = stripParenthesis(unaryCondition.getOperand());
}
}
if (negatedCondition == null) {
// Now check whether this is a simple expression
condition = stripParenthesis(condition);
String negatedExpressionText;
if (condition instanceof GrCallExpression || condition instanceof GrReferenceExpression) {
negatedExpressionText = "!" + condition.getText();
} else {
negatedExpressionText = "!(" + condition.getText() + ")";
}
negatedCondition =
groovyPsiElementFactory.createExpressionFromText(negatedExpressionText, parentIf);
}
GrStatement thenBranch = parentIf.getThenBranch();
final boolean thenIsNotEmpty = isNotEmpty(thenBranch);
String newIfText = "if (" + negatedCondition.getText() + ") {}";
if (thenIsNotEmpty) {
newIfText += " else {}";
}
GrIfStatement newIf =
(GrIfStatement)
groovyPsiElementFactory.createStatementFromText(newIfText, parentIf.getContext());
generateElseBranchTextAndRemoveTailStatements(parentIf, newIf);
if (thenIsNotEmpty) {
final GrStatement elseBranch = newIf.getElseBranch();
assert elseBranch != null;
elseBranch.replaceWithStatement(thenBranch);
}
parentIf.replace(newIf);
}
@Override
protected void processIntention(@NotNull PsiElement element, Project project, Editor editor)
throws IncorrectOperationException {
final GrMethodCallExpression expression = (GrMethodCallExpression) element;
final GrClosableBlock block = expression.getClosureArguments()[0];
final GrParameterList parameterList = block.getParameterList();
final GrParameter[] parameters = parameterList.getParameters();
String var;
if (parameters.length == 1) {
var = parameters[0].getText();
var = StringUtil.replace(var, GrModifier.DEF, "");
} else {
var = "it";
}
final GrExpression invokedExpression = expression.getInvokedExpression();
GrExpression qualifier = ((GrReferenceExpression) invokedExpression).getQualifierExpression();
final GroovyPsiElementFactory elementFactory =
GroovyPsiElementFactory.getInstance(element.getProject());
if (qualifier == null) {
qualifier = elementFactory.createExpressionFromText("this");
}
StringBuilder builder = new StringBuilder();
builder.append("for (").append(var).append(" in ").append(qualifier.getText()).append(") {\n");
String text = block.getText();
final PsiElement blockArrow = block.getArrow();
int index;
if (blockArrow != null) {
index = blockArrow.getStartOffsetInParent() + blockArrow.getTextLength();
} else {
index = 1;
}
while (index < text.length() && Character.isWhitespace(text.charAt(index))) index++;
text = text.substring(index, text.length() - 1);
builder.append(text);
builder.append("}");
final GrStatement statement = elementFactory.createStatementFromText(builder.toString());
GrForStatement forStatement = (GrForStatement) expression.replaceWithStatement(statement);
final GrForClause clause = forStatement.getClause();
GrVariable variable = clause.getDeclaredVariable();
forStatement = updateReturnStatements(forStatement);
if (variable == null) return;
if (ApplicationManager.getApplication().isUnitTestMode()) return;
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
final Document doc = documentManager.getDocument(element.getContainingFile());
if (doc == null) return;
documentManager.doPostponedOperationsAndUnblockDocument(doc);
editor.getCaretModel().moveToOffset(variable.getTextOffset());
new VariableInplaceRenamer(variable, editor).performInplaceRename();
}
private static GrExpression genRefForGetter(GrMethodCall call, String accessorName) {
String name = GroovyPropertyUtils.getPropertyNameByGetterName(accessorName, true);
GrReferenceExpression refExpr = (GrReferenceExpression) call.getInvokedExpression();
String oldNameStr = refExpr.getReferenceNameElement().getText();
String newRefExpr = StringUtil.trimEnd(refExpr.getText(), oldNameStr) + name;
final GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(call.getProject());
return factory.createExpressionFromText(newRefExpr, call);
}
public static GrReferenceExpression qualifyReference(
GrReferenceExpression referenceExpression,
final PsiMember member,
@Nullable final PsiClass qualifyingClass)
throws IncorrectOperationException {
PsiManager manager = referenceExpression.getManager();
GrReferenceExpression expressionFromText;
final GroovyPsiElementFactory factory =
GroovyPsiElementFactory.getInstance(referenceExpression.getProject());
if (qualifyingClass == null) {
PsiClass parentClass = PsiTreeUtil.getParentOfType(referenceExpression, PsiClass.class);
final PsiClass containingClass = member.getContainingClass();
if (parentClass != null
&& !InheritanceUtil.isInheritorOrSelf(parentClass, containingClass, true)) {
while (parentClass != null
&& !InheritanceUtil.isInheritorOrSelf(parentClass, containingClass, true)) {
parentClass = PsiTreeUtil.getParentOfType(parentClass, PsiClass.class, true);
}
LOG.assertTrue(parentClass != null);
expressionFromText =
factory.createReferenceExpressionFromText("A.this." + member.getName());
//noinspection ConstantConditions
((GrReferenceExpression) expressionFromText.getQualifier())
.getQualifier()
.replace(factory.createReferenceElementForClass(parentClass));
} else {
expressionFromText =
(GrReferenceExpression) factory.createExpressionFromText("this." + member.getName());
}
} else {
expressionFromText =
(GrReferenceExpression) factory.createExpressionFromText("A." + member.getName());
expressionFromText.setQualifier(factory.createReferenceElementForClass(qualifyingClass));
}
CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(manager.getProject());
expressionFromText = (GrReferenceExpression) codeStyleManager.reformat(expressionFromText);
return (GrReferenceExpression) referenceExpression.replace(expressionFromText);
}
public void fixSupers() throws IncorrectOperationException {
final GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(myProject);
GrReferenceExpression thisExpression =
(GrReferenceExpression) factory.createExpressionFromText("this", null);
for (GrExpression expression : mySupersToDelete) {
if (expression.getParent() instanceof GrReferenceExpression) {
((GrReferenceExpression) expression.getParent()).setQualifier(null);
}
}
for (GrReferenceExpression superExpression : mySupersToChangeToThis) {
superExpression.replace(thisExpression);
}
}
public static void processChangedMethodCall(
PsiElement element, GrIntroduceParameterSettings settings, Project project) {
if (!(element.getParent() instanceof GrMethodCallExpression)) {
LOG.error(element.getParent());
return;
}
GrMethodCallExpression methodCall = (GrMethodCallExpression) element.getParent();
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(project);
final String name = settings.getName();
LOG.assertTrue(name != null);
GrExpression expression = factory.createExpressionFromText(name, null);
final GrArgumentList argList = methodCall.getArgumentList();
final PsiElement[] exprs = argList.getAllArguments();
if (exprs.length > 0) {
argList.addAfter(expression, exprs[exprs.length - 1]);
} else {
argList.add(expression);
}
removeParametersFromCall(methodCall, settings);
}
@Nullable
public static GrExpression replaceExpression(
GrExpression oldExpr, GrExpression newExpr, boolean removeUnnecessaryParentheses) {
PsiElement oldParent = oldExpr.getParent();
if (oldParent == null) throw new PsiInvalidElementAccessException(oldExpr);
if (!(oldExpr instanceof GrApplicationStatement)) {
newExpr = ApplicationStatementUtil.convertToMethodCallExpression(newExpr);
}
// Remove unnecessary parentheses
if (removeUnnecessaryParentheses
&& oldParent instanceof GrParenthesizedExpression
&& !(oldParent.getParent() instanceof GrArgumentLabel)) {
return ((GrExpression) oldParent)
.replaceWithExpression(newExpr, removeUnnecessaryParentheses);
}
// regexes cannot be after identifier , try to replace it with simple string
if (getRegexAtTheBeginning(newExpr) != null && isAfterIdentifier(oldExpr)) {
final PsiElement copy = newExpr.copy();
final GrLiteral regex = getRegexAtTheBeginning(copy);
LOG.assertTrue(regex != null);
final GrLiteral stringLiteral = GrStringUtil.createStringFromRegex(regex);
if (regex == copy) {
return oldExpr.replaceWithExpression(stringLiteral, removeUnnecessaryParentheses);
} else {
regex.replace(stringLiteral);
return oldExpr.replaceWithExpression((GrExpression) copy, removeUnnecessaryParentheses);
}
}
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(oldExpr.getProject());
if (oldParent instanceof GrStringInjection) {
if (newExpr instanceof GrString
|| newExpr instanceof GrLiteral && ((GrLiteral) newExpr).getValue() instanceof String) {
return GrStringUtil.replaceStringInjectionByLiteral(
(GrStringInjection) oldParent, (GrLiteral) newExpr);
} else {
newExpr = factory.createExpressionFromText("{" + newExpr.getText() + "}");
oldParent.getNode().replaceChild(oldExpr.getNode(), newExpr.getNode());
return newExpr;
}
}
if (PsiTreeUtil.getParentOfType(oldExpr, GrStringInjection.class, false, GrCodeBlock.class)
!= null) {
final PsiElement replaced = oldExpr.replace(newExpr);
final GrStringInjection stringInjection =
PsiTreeUtil.getParentOfType(replaced, GrStringInjection.class);
GrStringUtil.wrapInjection(stringInjection);
assert stringInjection != null;
return stringInjection.getClosableBlock();
}
// check priorities
if (oldParent instanceof GrExpression && !(oldParent instanceof GrParenthesizedExpression)) {
GrExpression addedParenth =
addParenthesesIfNeeded(newExpr, oldExpr, (GrExpression) oldParent);
if (newExpr != addedParenth) {
return oldExpr.replaceWithExpression(addedParenth, removeUnnecessaryParentheses);
}
}
// if replace closure argument with expression
// we should add the expression in arg list
if (oldExpr instanceof GrClosableBlock
&& !(newExpr instanceof GrClosableBlock)
&& oldParent instanceof GrMethodCallExpression
&& ArrayUtil.contains(
oldExpr, ((GrMethodCallExpression) oldParent).getClosureArguments())) {
return ((GrMethodCallExpression) oldParent)
.replaceClosureArgument((GrClosableBlock) oldExpr, newExpr);
}
newExpr = (GrExpression) oldExpr.replace(newExpr);
// if newExpr is the first grand child of command argument list we should replace command arg
// list with parenthesised arg list.
// In other case the code will be broken. So we try to find wrapping command arg list counting
// levels. After arg list replace we go inside it
// to find target parenthesised expression.
if (newExpr instanceof GrParenthesizedExpression && isFirstChild(newExpr)) {
int parentCount = 0;
PsiElement element = oldParent;
while (element != null && !(element instanceof GrCommandArgumentList)) {
if (element instanceof GrCodeBlock || element instanceof GrParenthesizedExpression) break;
if (element instanceof PsiFile) break;
final PsiElement parent = element.getParent();
if (parent == null) break;
if (!isFirstChild(element)) break;
element = parent;
parentCount++;
}
if (element instanceof GrCommandArgumentList) {
final GrCommandArgumentList commandArgList = (GrCommandArgumentList) element;
final PsiElement parent = commandArgList.getParent();
LOG.assertTrue(parent instanceof GrApplicationStatement);
final GrMethodCall methodCall =
factory.createMethodCallByAppCall((GrApplicationStatement) parent);
final GrMethodCall newCall = (GrMethodCall) parent.replace(methodCall);
PsiElement result = newCall.getArgumentList().getAllArguments()[0];
for (int i = 0; i < parentCount; i++) {
result = PsiUtil.skipWhitespacesAndComments(result.getFirstChild(), true);
}
LOG.assertTrue(result instanceof GrParenthesizedExpression);
return (GrExpression) result;
}
}
return newExpr;
}
@Override
protected void performRefactoring(UsageInfo[] usages) {
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(myProject);
PsiType initializerType = mySettings.getSelectedType();
// Changing external occurrences (the tricky part)
IntroduceParameterUtil.processUsages(usages, this);
final GrMethod toReplaceIn = (GrMethod) mySettings.getToReplaceIn();
final PsiMethod toSearchFor = (PsiMethod) mySettings.getToSearchFor();
final boolean methodsToProcessAreDifferent = toReplaceIn != toSearchFor;
if (mySettings.generateDelegate()) {
GroovyIntroduceParameterUtil.generateDelegate(toReplaceIn, myParameterInitializer, myProject);
if (methodsToProcessAreDifferent) {
final GrMethod method =
GroovyIntroduceParameterUtil.generateDelegate(
toSearchFor, myParameterInitializer, myProject);
final PsiClass containingClass = method.getContainingClass();
if (containingClass != null && containingClass.isInterface()) {
final GrOpenBlock block = method.getBlock();
if (block != null) {
block.delete();
}
}
}
}
// Changing signature of initial method
// (signature of myMethodToReplaceIn will be either changed now or have already been changed)
LOG.assertTrue(initializerType == null || initializerType.isValid());
final FieldConflictsResolver fieldConflictsResolver =
new FieldConflictsResolver(mySettings.getName(), toReplaceIn.getBlock());
IntroduceParameterUtil.changeMethodSignatureAndResolveFieldConflicts(
new UsageInfo(toReplaceIn), usages, this);
if (methodsToProcessAreDifferent) {
IntroduceParameterUtil.changeMethodSignatureAndResolveFieldConflicts(
new UsageInfo(toSearchFor), usages, this);
}
// Replacing expression occurrences
for (UsageInfo usage : usages) {
if (usage instanceof ChangedMethodCallInfo) {
PsiElement element = usage.getElement();
GroovyIntroduceParameterUtil.processChangedMethodCall(element, mySettings, myProject);
} else if (usage instanceof InternalUsageInfo) {
PsiElement element = usage.getElement();
if (element == null) continue;
GrExpression newExpr = factory.createExpressionFromText(mySettings.getName());
if (element instanceof GrExpression) {
((GrExpression) element).replaceWithExpression(newExpr, true);
} else {
element.replace(newExpr);
}
}
}
final StringPartInfo stringPartInfo = mySettings.getStringPartInfo();
if (stringPartInfo != null) {
final GrExpression expr =
GrIntroduceHandlerBase.processLiteral(
mySettings.getName(), mySettings.getStringPartInfo(), mySettings.getProject());
final Editor editor = PsiUtilBase.findEditor(expr);
if (editor != null) {
editor.getSelectionModel().removeSelection();
editor.getCaretModel().moveToOffset(expr.getTextRange().getEndOffset());
}
}
final GrVariable var = mySettings.getVar();
if (var != null && mySettings.removeLocalVariable()) {
var.delete();
}
fieldConflictsResolver.fix();
}
@Nullable
private static GrExpression createDefaultValue(
GroovyPsiElementFactory factory,
JavaChangeInfo changeInfo,
JavaParameterInfo info,
final GrArgumentList list) {
if (info.isUseAnySingleVariable()) {
final PsiResolveHelper resolveHelper =
JavaPsiFacade.getInstance(list.getProject()).getResolveHelper();
final PsiType type = info.getTypeWrapper().getType(changeInfo.getMethod(), list.getManager());
final VariablesProcessor processor =
new VariablesProcessor(false) {
@Override
protected boolean check(PsiVariable var, ResolveState state) {
if (var instanceof PsiField
&& !resolveHelper.isAccessible((PsiField) var, list, null)) return false;
if (var instanceof GrVariable
&& PsiUtil.isLocalVariable(var)
&& list.getTextRange().getStartOffset() <= var.getTextRange().getStartOffset()) {
return false;
}
if (PsiTreeUtil.isAncestor(var, list, false)) return false;
final PsiType _type =
var instanceof GrVariable ? ((GrVariable) var).getTypeGroovy() : var.getType();
final PsiType varType = state.get(PsiSubstitutor.KEY).substitute(_type);
return type.isAssignableFrom(varType);
}
@Override
public boolean execute(@NotNull PsiElement pe, @NotNull ResolveState state) {
super.execute(pe, state);
return size() < 2;
}
};
ResolveUtil.treeWalkUp(list, processor, false);
if (processor.size() == 1) {
final PsiVariable result = processor.getResult(0);
return factory.createExpressionFromText(result.getName(), list);
}
if (processor.size() == 0) {
final PsiClass parentClass = PsiTreeUtil.getParentOfType(list, PsiClass.class);
if (parentClass != null) {
PsiClass containingClass = parentClass;
final Set<PsiClass> containingClasses = new HashSet<PsiClass>();
final PsiElementFactory jfactory = JavaPsiFacade.getElementFactory(list.getProject());
while (containingClass != null) {
if (type.isAssignableFrom(jfactory.createType(containingClass, PsiSubstitutor.EMPTY))) {
containingClasses.add(containingClass);
}
containingClass = PsiTreeUtil.getParentOfType(containingClass, PsiClass.class);
}
if (containingClasses.size() == 1) {
return factory.createThisExpression(
containingClasses.contains(parentClass)
? null
: containingClasses.iterator().next());
}
}
}
}
final String value = info.getDefaultValue();
return !StringUtil.isEmpty(value) ? factory.createExpressionFromText(value, list) : null;
}