private PsiMethod generateDelegate(final PsiMethod methodToReplaceIn)
throws IncorrectOperationException {
final PsiMethod delegate = (PsiMethod) methodToReplaceIn.copy();
final PsiElementFactory elementFactory =
JavaPsiFacade.getInstance(myManager.getProject()).getElementFactory();
ChangeSignatureProcessor.makeEmptyBody(elementFactory, delegate);
final PsiCallExpression callExpression =
ChangeSignatureProcessor.addDelegatingCallTemplate(delegate, delegate.getName());
final PsiExpressionList argumentList = callExpression.getArgumentList();
assert argumentList != null;
final PsiParameter[] psiParameters = methodToReplaceIn.getParameterList().getParameters();
final PsiParameter anchorParameter = getAnchorParameter(methodToReplaceIn);
if (psiParameters.length == 0) {
argumentList.add(myParameterInitializer);
} else {
if (anchorParameter == null) {
argumentList.add(myParameterInitializer);
}
for (int i = 0; i < psiParameters.length; i++) {
PsiParameter psiParameter = psiParameters[i];
if (!myParametersToRemove.contains(i)) {
final PsiExpression expression =
elementFactory.createExpressionFromText(psiParameter.getName(), delegate);
argumentList.add(expression);
}
if (psiParameter == anchorParameter) {
argumentList.add(myParameterInitializer);
}
}
}
return (PsiMethod)
methodToReplaceIn.getContainingClass().addBefore(delegate, methodToReplaceIn);
}
private PsiMethod getPatternMethod() throws IncorrectOperationException {
final PsiMethod methodCopy = (PsiMethod) myMethod.copy();
String name =
myTargetClass.isInterface()
? PsiModifier.PUBLIC
: !Comparing.strEqual(myNewVisibility, VisibilityUtil.ESCALATE_VISIBILITY)
? myNewVisibility
: null;
if (name != null) {
PsiUtil.setModifierProperty(methodCopy, name, true);
}
if (myTargetVariable instanceof PsiParameter) {
final int index =
myMethod.getParameterList().getParameterIndex((PsiParameter) myTargetVariable);
methodCopy.getParameterList().getParameters()[index].delete();
}
addParameters(
JavaPsiFacade.getInstance(myProject).getElementFactory(),
methodCopy,
myTargetClass.isInterface());
return methodCopy;
}