private static boolean isParameterUsedRecursively(
@NotNull PsiElement element, @NotNull List<PsiReference> array) {
if (!(element instanceof PsiParameter)) return false;
PsiParameter parameter = (PsiParameter) element;
PsiElement scope = parameter.getDeclarationScope();
if (!(scope instanceof PsiMethod)) return false;
PsiMethod method = (PsiMethod) scope;
int paramIndex = ArrayUtilRt.find(method.getParameterList().getParameters(), parameter);
for (PsiReference reference : array) {
if (!(reference instanceof PsiElement)) return false;
PsiElement argument = (PsiElement) reference;
PsiMethodCallExpression methodCallExpression =
(PsiMethodCallExpression)
new PsiMatcherImpl(argument)
.dot(PsiMatchers.hasClass(PsiReferenceExpression.class))
.parent(PsiMatchers.hasClass(PsiExpressionList.class))
.parent(PsiMatchers.hasClass(PsiMethodCallExpression.class))
.getElement();
if (methodCallExpression == null) return false;
PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
if (method != methodExpression.resolve()) return false;
PsiExpressionList argumentList = methodCallExpression.getArgumentList();
PsiExpression[] arguments = argumentList.getExpressions();
int argumentIndex = ArrayUtilRt.find(arguments, argument);
if (paramIndex != argumentIndex) return false;
}
return true;
}
private PsiField getReferencedField(PsiExpression expression) {
if (expression instanceof PsiParenthesizedExpression) {
final PsiExpression contents = ((PsiParenthesizedExpression) expression).getExpression();
return getReferencedField(contents);
}
final PsiReferenceExpression reference = (PsiReferenceExpression) expression;
return (PsiField) reference.resolve();
}
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
if (expression.getQualifierExpression() instanceof PsiSuperExpression) {
PsiElement resolved = expression.resolve();
if (resolved == null
|| resolved instanceof PsiMethod && shouldFixSuper((PsiMethod) resolved)) {
expression.getQualifierExpression().delete();
}
}
}
@Override
public void visitReferenceExpression(final PsiReferenceExpression reference) {
if (myLineRange.intersects(reference.getTextRange())) {
final PsiElement psiElement = reference.resolve();
if (psiElement instanceof PsiVariable) {
final PsiVariable var = (PsiVariable) psiElement;
if (var instanceof PsiField) {
if (myCollectExpressions
&& !DebuggerUtils.hasSideEffectsOrReferencesMissingVars(
reference, myVisibleLocals)) {
/*
if (var instanceof PsiEnumConstant && reference.getQualifier() == null) {
final PsiClass enumClass = ((PsiEnumConstant)var).getContainingClass();
if (enumClass != null) {
final PsiExpression expression = JavaPsiFacade.getInstance(var.getProject()).getParserFacade().createExpressionFromText(enumClass.getName() + "." + var.getName(), var);
final PsiReference ref = expression.getReference();
if (ref != null) {
ref.bindToElement(var);
myExpressions.add(new TextWithImportsImpl(expression));
}
}
}
else {
myExpressions.add(new TextWithImportsImpl(reference));
}
*/
final PsiModifierList modifierList = var.getModifierList();
boolean isConstant =
(var instanceof PsiEnumConstant)
|| (modifierList != null
&& modifierList.hasModifierProperty(PsiModifier.STATIC)
&& modifierList.hasModifierProperty(PsiModifier.FINAL));
if (!isConstant) {
myExpressions.add(new TextWithImportsImpl(reference));
}
}
} else {
if (myVisibleLocals.contains(var.getName())) {
myVars.add(var.getName());
} else {
// fix for variables used in inner classes
if (!Comparing.equal(
PsiTreeUtil.getParentOfType(reference, PsiClass.class),
PsiTreeUtil.getParentOfType(var, PsiClass.class))) {
myExpressions.add(new TextWithImportsImpl(reference));
}
}
}
}
}
super.visitReferenceExpression(reference);
}
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
final PsiExpression qualifierExpression = expression.getQualifierExpression();
if (qualifierExpression != null && !(qualifierExpression instanceof PsiThisExpression)) {
return;
}
final PsiElement resolved = expression.resolve();
if (resolved instanceof PsiParameter) {
myUsedParameters.add((PsiParameter) resolved);
} else if (myMovedFields.contains(resolved)) {
myUsedFields.add((PsiField) resolved);
}
}
public void updateReturnValueTemplate(PsiExpression expression) {
if (myReturnValueTemplate == null) return;
if (!getSuperMethods().isEmpty()) {
for (final RefMethod refMethod : getSuperMethods()) {
RefMethodImpl refSuper = (RefMethodImpl) refMethod;
refSuper.updateReturnValueTemplate(expression);
}
} else {
String newTemplate = null;
final RefJavaUtil refUtil = RefJavaUtil.getInstance();
if (expression instanceof PsiLiteralExpression) {
PsiLiteralExpression psiLiteralExpression = (PsiLiteralExpression) expression;
newTemplate = psiLiteralExpression.getText();
} else if (expression instanceof PsiReferenceExpression) {
PsiReferenceExpression referenceExpression = (PsiReferenceExpression) expression;
PsiElement resolved = referenceExpression.resolve();
if (resolved instanceof PsiField) {
PsiField psiField = (PsiField) resolved;
if (psiField.hasModifierProperty(PsiModifier.STATIC)
&& psiField.hasModifierProperty(PsiModifier.FINAL)
&& refUtil.compareAccess(refUtil.getAccessModifier(psiField), getAccessModifier())
>= 0) {
newTemplate =
PsiFormatUtil.formatVariable(
psiField,
PsiFormatUtilBase.SHOW_NAME
| PsiFormatUtilBase.SHOW_CONTAINING_CLASS
| PsiFormatUtilBase.SHOW_FQ_NAME,
PsiSubstitutor.EMPTY);
}
}
} else if (refUtil.isCallToSuperMethod(expression, (PsiMethod) getElement())) return;
//noinspection StringEquality
if (myReturnValueTemplate == RETURN_VALUE_UNDEFINED) {
myReturnValueTemplate = newTemplate;
} else if (!Comparing.equal(myReturnValueTemplate, newTemplate)) {
myReturnValueTemplate = null;
}
}
}
@Nullable
private PsiStatement hasCommonInitializer(
PsiStatement commonInitializer,
PsiMethod subConstructor,
PsiField field,
ArrayList<PsiElement> statementsToRemove) {
final PsiCodeBlock body = subConstructor.getBody();
if (body == null) return null;
final PsiStatement[] statements = body.getStatements();
// Algorithm: there should be only one write usage of field in a subConstructor,
// and in that usage field must be a target of top-level assignment, and RHS of assignment
// should be the same as commonInitializer if latter is non-null.
//
// There should be no usages before that initializer, and there should be
// no write usages afterwards.
PsiStatement commonInitializerCandidate = null;
for (PsiStatement statement : statements) {
final HashSet<PsiStatement> collectedStatements = new HashSet<PsiStatement>();
collectPsiStatements(statement, collectedStatements);
boolean doLookup = true;
for (PsiStatement collectedStatement : collectedStatements) {
if (collectedStatement instanceof PsiExpressionStatement) {
final PsiExpression expression =
((PsiExpressionStatement) collectedStatement).getExpression();
if (expression instanceof PsiAssignmentExpression) {
final PsiAssignmentExpression assignmentExpression =
(PsiAssignmentExpression) expression;
final PsiExpression lExpression = assignmentExpression.getLExpression();
if (lExpression instanceof PsiReferenceExpression) {
final PsiReferenceExpression lRef = (PsiReferenceExpression) lExpression;
if (lRef.getQualifierExpression() == null
|| lRef.getQualifierExpression() instanceof PsiThisExpression) {
final PsiElement resolved = lRef.resolve();
if (resolved == field) {
doLookup = false;
if (commonInitializerCandidate == null) {
final PsiExpression initializer = assignmentExpression.getRExpression();
if (initializer == null) return null;
if (commonInitializer == null) {
final IsMovableInitializerVisitor visitor = new IsMovableInitializerVisitor();
statement.accept(visitor);
if (visitor.isMovable()) {
ChangeContextUtil.encodeContextInfo(statement, true);
PsiStatement statementCopy = (PsiStatement) statement.copy();
ChangeContextUtil.clearContextInfo(statement);
statementsToRemove.add(statement);
commonInitializerCandidate = statementCopy;
} else {
return null;
}
} else {
if (PsiEquivalenceUtil.areElementsEquivalent(commonInitializer, statement)) {
statementsToRemove.add(statement);
commonInitializerCandidate = commonInitializer;
} else {
return null;
}
}
} else if (!PsiEquivalenceUtil.areElementsEquivalent(
commonInitializerCandidate, statement)) {
return null;
}
}
}
}
}
}
}
if (doLookup) {
final PsiReference[] references =
ReferencesSearch.search(field, new LocalSearchScope(statement), false)
.toArray(new PsiReference[0]);
if (commonInitializerCandidate == null && references.length > 0) {
return null;
}
for (PsiReference reference : references) {
if (RefactoringUtil.isAssignmentLHS(reference.getElement())) return null;
}
}
}
return commonInitializerCandidate;
}
