private void addParameters(
final PsiElementFactory factory, final PsiMethod methodCopy, final boolean isInterface)
throws IncorrectOperationException {
final Set<Map.Entry<PsiClass, String>> entries = myOldClassParameterNames.entrySet();
for (final Map.Entry<PsiClass, String> entry : entries) {
final PsiClassType type = factory.createType(entry.getKey());
final PsiParameter parameter = factory.createParameter(entry.getValue(), type);
if (isInterface) {
PsiUtil.setModifierProperty(parameter, PsiModifier.FINAL, false);
}
methodCopy.getParameterList().add(parameter);
}
}
private String getParameterNameToCreate(@NotNull PsiClass aClass) {
return myOldClassParameterNames.get(aClass);
}
private PsiMethod createMethodToAdd() {
ChangeContextUtil.encodeContextInfo(myMethod, true);
try {
final PsiManager manager = myMethod.getManager();
final PsiElementFactory factory =
JavaPsiFacade.getInstance(manager.getProject()).getElementFactory();
// correct internal references
final PsiCodeBlock body = myMethod.getBody();
if (body != null) {
final Map<PsiElement, PsiElement> replaceMap = new HashMap<PsiElement, PsiElement>();
body.accept(
new JavaRecursiveElementVisitor() {
@Override
public void visitThisExpression(PsiThisExpression expression) {
final PsiClass classReferencedByThis =
MoveInstanceMembersUtil.getClassReferencedByThis(expression);
if (classReferencedByThis != null
&& !PsiTreeUtil.isAncestor(myMethod, classReferencedByThis, false)) {
final PsiElementFactory factory =
JavaPsiFacade.getInstance(myProject).getElementFactory();
String paramName = getParameterNameToCreate(classReferencedByThis);
try {
final PsiExpression refExpression =
factory.createExpressionFromText(paramName, null);
replaceMap.put(expression, refExpression);
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
}
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
try {
final PsiExpression qualifier = expression.getQualifierExpression();
final PsiElement resolved = expression.resolve();
if (qualifier instanceof PsiReferenceExpression
&& ((PsiReferenceExpression) qualifier).isReferenceTo(myTargetVariable)) {
if (resolved instanceof PsiField) {
for (PsiParameter parameter : myMethod.getParameterList().getParameters()) {
if (Comparing.strEqual(
parameter.getName(), ((PsiField) resolved).getName())) {
qualifier.replace(factory.createExpressionFromText("this", null));
return;
}
}
}
// Target is a field, replace target.m -> m
qualifier.delete();
return;
}
if (myTargetVariable.equals(resolved)) {
PsiThisExpression thisExpression =
RefactoringChangeUtil.createThisExpression(
manager,
PsiTreeUtil.isAncestor(
myMethod,
PsiTreeUtil.getParentOfType(expression, PsiClass.class),
true)
? myTargetClass
: null);
replaceMap.put(expression, thisExpression);
return;
} else if (myMethod.equals(resolved)) {
} else {
PsiClass classReferencedByThis =
MoveInstanceMembersUtil.getClassReferencedByThis(expression);
if (classReferencedByThis != null) {
final String paramName = getParameterNameToCreate(classReferencedByThis);
if (paramName != null) {
PsiReferenceExpression newQualifier =
(PsiReferenceExpression)
factory.createExpressionFromText(paramName, null);
expression.setQualifierExpression(newQualifier);
return;
}
}
}
super.visitReferenceExpression(expression);
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
@Override
public void visitNewExpression(PsiNewExpression expression) {
try {
final PsiExpression qualifier = expression.getQualifier();
if (qualifier instanceof PsiReferenceExpression
&& ((PsiReferenceExpression) qualifier).isReferenceTo(myTargetVariable)) {
// Target is a field, replace target.new A() -> new A()
qualifier.delete();
} else {
final PsiClass classReferencedByThis =
MoveInstanceMembersUtil.getClassReferencedByThis(expression);
if (classReferencedByThis != null) {
if (qualifier != null) qualifier.delete();
final String paramName = getParameterNameToCreate(classReferencedByThis);
final PsiExpression newExpression =
factory.createExpressionFromText(
paramName + "." + expression.getText(), null);
replaceMap.put(expression, newExpression);
}
}
super.visitNewExpression(expression);
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
@Override
public void visitMethodCallExpression(PsiMethodCallExpression expression) {
correctMethodCall(expression, true);
super.visitMethodCallExpression(expression);
}
});
for (PsiElement element : replaceMap.keySet()) {
final PsiElement replacement = replaceMap.get(element);
element.replace(replacement);
}
}
final PsiMethod methodCopy = getPatternMethod();
final List<PsiParameter> newParameters =
Arrays.asList(methodCopy.getParameterList().getParameters());
RefactoringUtil.fixJavadocsForParams(methodCopy, new HashSet<PsiParameter>(newParameters));
return methodCopy;
} catch (IncorrectOperationException e) {
LOG.error(e);
return myMethod;
}
}
private void correctMethodCall(
final PsiMethodCallExpression expression, final boolean isInternalCall) {
try {
final PsiManager manager = myMethod.getManager();
PsiReferenceExpression methodExpression = expression.getMethodExpression();
if (!methodExpression.isReferenceTo(myMethod)) return;
final PsiExpression oldQualifier = methodExpression.getQualifierExpression();
PsiExpression newQualifier = null;
final PsiClass classReferencedByThis =
MoveInstanceMembersUtil.getClassReferencedByThis(methodExpression);
if (myTargetVariable instanceof PsiParameter) {
final int index =
myMethod.getParameterList().getParameterIndex((PsiParameter) myTargetVariable);
final PsiExpression[] arguments = expression.getArgumentList().getExpressions();
if (index < arguments.length) {
newQualifier = (PsiExpression) arguments[index].copy();
arguments[index].delete();
}
} else {
VisibilityUtil.escalateVisibility((PsiField) myTargetVariable, expression);
String newQualifierName = myTargetVariable.getName();
if (myTargetVariable instanceof PsiField && oldQualifier != null) {
final PsiClass aClass = PsiUtil.resolveClassInClassTypeOnly(oldQualifier.getType());
if (aClass == ((PsiField) myTargetVariable).getContainingClass()) {
newQualifierName = oldQualifier.getText() + "." + newQualifierName;
}
}
newQualifier =
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createExpressionFromText(newQualifierName, null);
}
PsiExpression newArgument = null;
if (classReferencedByThis != null) {
@NonNls String thisArgumentText = null;
if (manager.areElementsEquivalent(myMethod.getContainingClass(), classReferencedByThis)) {
if (myOldClassParameterNames.containsKey(myMethod.getContainingClass())) {
thisArgumentText = "this";
}
} else {
thisArgumentText = classReferencedByThis.getName() + ".this";
}
if (thisArgumentText != null) {
newArgument =
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createExpressionFromText(thisArgumentText, null);
}
} else {
if (!isInternalCall && oldQualifier != null) {
final PsiType type = oldQualifier.getType();
if (type instanceof PsiClassType) {
final PsiClass resolved = ((PsiClassType) type).resolve();
if (resolved != null && getParameterNameToCreate(resolved) != null) {
newArgument =
replaceRefsToTargetVariable(
oldQualifier); // replace is needed in case old qualifier is e.g. the same as
// field as target variable
}
}
}
}
if (newArgument != null) {
expression.getArgumentList().add(newArgument);
}
if (newQualifier != null) {
if (newQualifier instanceof PsiThisExpression
&& ((PsiThisExpression) newQualifier).getQualifier() == null) {
// Remove now redundant 'this' qualifier
if (oldQualifier != null) oldQualifier.delete();
} else {
final PsiReferenceExpression refExpr =
(PsiReferenceExpression)
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createExpressionFromText("q." + myMethod.getName(), null);
refExpr.getQualifierExpression().replace(newQualifier);
methodExpression.replace(refExpr);
}
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}