@NotNull
public List<String> createConversions(@NotNull PsiCallExpression expression) {
PsiExpressionList argumentList = expression.getArgumentList();
PsiExpression[] arguments =
argumentList != null ? argumentList.getExpressions() : new PsiExpression[] {};
List<String> conversions = new LinkedList<String>();
//noinspection UnusedDeclaration
for (PsiExpression a : arguments) {
conversions.add("");
}
PsiMethod resolve = expression.resolveMethod();
if (resolve != null) {
List<PsiType> expectedTypes = new LinkedList<PsiType>();
List<PsiType> actualTypes = new LinkedList<PsiType>();
for (PsiParameter p : resolve.getParameterList().getParameters())
expectedTypes.add(p.getType());
for (PsiExpression e : arguments) actualTypes.add(e.getType());
if (conversions.size() == actualTypes.size() && actualTypes.size() == expectedTypes.size()) {
for (int i = 0; i < actualTypes.size(); i++)
conversions.set(i, createConversionForExpression(arguments[i], expectedTypes.get(i)));
}
}
return conversions;
}
@Override
public void invoke(@NotNull Project project, Editor editor, @NotNull PsiElement element)
throws IncorrectOperationException {
final PsiNewExpression expression =
PsiTreeUtil.getParentOfType(element, PsiNewExpression.class, false);
if (expression == null) {
return;
}
final PsiExpressionList arguments = expression.getArgumentList();
if (arguments == null) {
return;
}
final PsiMethod constructor = expression.resolveConstructor();
if (constructor == null) {
return;
}
final PsiExpressionList newArguments =
createNewArguments(
JavaPsiFacade.getElementFactory(project),
constructor.getParameterList().getParameters(),
arguments.getExpressions());
if (newArguments == null) {
return;
}
arguments.replace(newArguments);
}
private static PsiExpression getArg(PsiElement element) {
final PsiExpressionList argumentList = ((PsiCall) element.getParent()).getArgumentList();
LOG.assertTrue(argumentList != null);
final PsiExpression[] args = argumentList.getExpressions();
LOG.assertTrue(args.length == 1);
return args[0];
}
@Override
public void visitNewExpression(@NotNull PsiNewExpression expression) {
if (!PsiUtil.isLanguageLevel5OrHigher(expression)) {
return;
}
super.visitNewExpression(expression);
final PsiType type = expression.getType();
if (type == null) {
return;
}
final String canonicalText = type.getCanonicalText();
if (!cachedNumberTypes.contains(canonicalText)) {
return;
}
final PsiClass aClass = ClassUtils.getContainingClass(expression);
if (aClass != null && cachedNumberTypes.contains(aClass.getQualifiedName())) {
return;
}
final PsiExpressionList argumentList = expression.getArgumentList();
if (argumentList == null) {
return;
}
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 1) {
return;
}
final PsiExpression argument = arguments[0];
final PsiType argumentType = argument.getType();
if (argumentType == null || argumentType.equalsToText("java.lang.String")) {
return;
}
registerError(expression, expression);
}
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;
}
@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiReferenceExpression methodExpression = expression.getMethodExpression();
final String methodName = methodExpression.getReferenceName();
@NonNls final String signal = "signal";
if (!signal.equals(methodName)) {
return;
}
final PsiExpressionList argumentList = expression.getArgumentList();
if (argumentList.getExpressions().length != 0) {
return;
}
final PsiMethod method = expression.resolveMethod();
if (method == null) {
return;
}
final PsiClass containingClass = method.getContainingClass();
if (containingClass == null) {
return;
}
if (!ClassUtils.isSubclass(containingClass, "java.util.concurrent.locks.Condition")) {
return;
}
registerMethodCallError(expression);
}
@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length == 0) {
return;
}
final PsiExpression xpathArgument = arguments[0];
if (!ExpressionUtils.hasStringType(xpathArgument)) {
return;
}
if (!PsiUtil.isConstantExpression(xpathArgument)) {
return;
}
final PsiType type = xpathArgument.getType();
if (type == null) {
return;
}
final String value = (String) ConstantExpressionUtil.computeCastTo(xpathArgument, type);
if (value == null) {
return;
}
if (!callTakesXPathExpression(expression)) {
return;
}
final XPathFactory xpathFactory = XPathFactory.newInstance();
final XPath xpath = xpathFactory.newXPath();
//noinspection UnusedCatchParameter,ProhibitedExceptionCaught
try {
xpath.compile(value);
} catch (XPathExpressionException ignore) {
registerError(xpathArgument);
}
}
protected void changeSelfUsage(SelfUsageInfo usageInfo) throws IncorrectOperationException {
PsiElement parent = usageInfo.getElement().getParent();
LOG.assertTrue(parent instanceof PsiMethodCallExpression);
PsiMethodCallExpression methodCall = (PsiMethodCallExpression) parent;
final PsiExpression qualifier = methodCall.getMethodExpression().getQualifierExpression();
if (qualifier != null) qualifier.delete();
PsiElementFactory factory =
JavaPsiFacade.getInstance(methodCall.getProject()).getElementFactory();
PsiExpressionList args = methodCall.getArgumentList();
PsiElement addParameterAfter = null;
if (mySettings.isMakeClassParameter()) {
PsiElement arg = factory.createExpressionFromText(mySettings.getClassParameterName(), null);
addParameterAfter = args.addAfter(arg, null);
}
if (mySettings.isMakeFieldParameters()) {
List<Settings.FieldParameter> parameters = mySettings.getParameterOrderList();
for (Settings.FieldParameter fieldParameter : parameters) {
PsiElement arg = factory.createExpressionFromText(fieldParameter.name, null);
if (addParameterAfter == null) {
addParameterAfter = args.addAfter(arg, null);
} else {
addParameterAfter = args.addAfter(arg, addParameterAfter);
}
}
}
}
@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiReferenceExpression methodExpression = expression.getMethodExpression();
@NonNls final String methodName = methodExpression.getReferenceName();
if (methodName == null) {
return;
}
if (!methodName.startsWith("get") && !methodName.startsWith("update")) {
return;
}
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length == 0) {
return;
}
final PsiExpression argument = arguments[0];
if (!TypeUtils.expressionHasType(argument, PsiKeyword.INT)) {
return;
}
if (!PsiUtil.isConstantExpression(argument)) {
return;
}
final Integer val = (Integer) ConstantExpressionUtil.computeCastTo(argument, PsiType.INT);
if (val == null || val.intValue() != 0) {
return;
}
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (!TypeUtils.expressionHasTypeOrSubtype(qualifier, "java.sql.ResultSet")) {
return;
}
registerError(argument);
}
static String createContainsExpressionText(
@NotNull PsiMethodCallExpression call, @NotNull PsiJavaToken sign, boolean flipped) {
final IElementType tokenType = sign.getTokenType();
final PsiReferenceExpression methodExpression = call.getMethodExpression();
final PsiExpression qualifierExpression = methodExpression.getQualifierExpression();
final String qualifierText;
if (qualifierExpression == null) {
qualifierText = "";
} else {
qualifierText = qualifierExpression.getText();
}
final PsiExpressionList argumentList = call.getArgumentList();
final PsiExpression expression = argumentList.getExpressions()[0];
@NonNls
final String newExpressionText = qualifierText + ".contains(" + expression.getText() + ')';
if (tokenType.equals(JavaTokenType.EQEQ)) {
return '!' + newExpressionText;
} else if (!flipped
&& (tokenType.equals(JavaTokenType.LT) || tokenType.equals(JavaTokenType.LE))) {
return '!' + newExpressionText;
} else if (flipped
&& (tokenType.equals(JavaTokenType.GT) || tokenType.equals(JavaTokenType.GE))) {
return '!' + newExpressionText;
}
return newExpressionText;
}
private static boolean isIndexOfCall(@NotNull PsiMethodCallExpression expression) {
final PsiReferenceExpression methodExpression = expression.getMethodExpression();
final String methodName = methodExpression.getReferenceName();
if (!HardcodedMethodConstants.INDEX_OF.equals(methodName)) {
return false;
}
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 1) {
return false;
}
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (qualifier == null) {
return false;
}
final PsiType qualifierType = qualifier.getType();
if (qualifierType == null) {
return false;
}
final Project project = expression.getProject();
final GlobalSearchScope projectScope = GlobalSearchScope.allScope(project);
final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project);
final PsiClass javaUtilListClass =
psiFacade.findClass(CommonClassNames.JAVA_UTIL_LIST, projectScope);
if (javaUtilListClass == null) {
return false;
}
final PsiElementFactory factory = psiFacade.getElementFactory();
final PsiClassType javaUtilListType = factory.createType(javaUtilListClass);
return javaUtilListType.isAssignableFrom(qualifierType);
}
@Override
public void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiIdentifier name = (PsiIdentifier) descriptor.getPsiElement();
final PsiReferenceExpression expression = (PsiReferenceExpression) name.getParent();
if (expression == null) {
return;
}
final PsiMethodCallExpression call = (PsiMethodCallExpression) expression.getParent();
final String methodName = expression.getReferenceName();
if (call == null) {
return;
}
final PsiMethod method = call.resolveMethod();
if (method == null) {
return;
}
final PsiClass containingClass = method.getContainingClass();
final PsiExpressionList argumentList = call.getArgumentList();
if (containingClass == null) {
return;
}
final String containingClassName = containingClass.getQualifiedName();
final String argText = argumentList.getText();
PsiReplacementUtil.replaceExpressionAndShorten(
call, containingClassName + '.' + methodName + argText);
}
@Override
public void visitMethodCallExpression(PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiReferenceExpression methodExpression = expression.getMethodExpression();
@NonNls final String referenceName = methodExpression.getReferenceName();
if (!"toString".equals(referenceName)
|| ExpressionUtils.isConversionToStringNecessary(expression)) {
return;
}
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 0) {
return;
}
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (qualifier != null) {
if (qualifier.getType() instanceof PsiArrayType) {
// do not warn on nonsensical code
return;
} else if (qualifier instanceof PsiSuperExpression) {
return;
}
}
registerMethodCallError(expression, calculateReplacementText(qualifier));
}
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 static boolean isValueOfCall(PsiMethodCallExpression methodCallExpression) {
final PsiExpressionList argumentList = methodCallExpression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 1) {
return false;
}
final PsiExpression argument = arguments[0];
final PsiType type = argument.getType();
return (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_INTEGER,
null,
"valueOf",
PsiType.INT)
&& PsiType.INT.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_SHORT,
null,
"valueOf",
PsiType.SHORT)
&& PsiType.SHORT.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_BYTE,
null,
"valueOf",
PsiType.BYTE)
&& PsiType.BYTE.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_LONG,
null,
"valueOf",
PsiType.LONG)
&& PsiType.LONG.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_CHARACTER,
null,
"valueOf",
PsiType.CHAR)
&& PsiType.CHAR.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_DOUBLE,
null,
"valueOf",
PsiType.DOUBLE)
&& PsiType.DOUBLE.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_FLOAT,
null,
"valueOf",
PsiType.FLOAT)
&& PsiType.FLOAT.equals(type));
}
private static boolean expressionListStatementsAreEquivalent(
@NotNull PsiExpressionListStatement statement1,
@NotNull PsiExpressionListStatement statement2) {
final PsiExpressionList expressionList1 = statement1.getExpressionList();
final PsiExpression[] expressions1 = expressionList1.getExpressions();
final PsiExpressionList expressionList2 = statement2.getExpressionList();
final PsiExpression[] expressions2 = expressionList2.getExpressions();
return expressionListsAreEquivalent(expressions1, expressions2);
}
public void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiNewExpression expression = (PsiNewExpression) descriptor.getPsiElement();
final PsiExpressionList argList = expression.getArgumentList();
assert argList != null;
final PsiExpression[] args = argList.getExpressions();
final PsiExpression arg = args[0];
final String text = arg.getText();
replaceExpression(expression, className + ".valueOf(" + text + ')');
}
private static void removeParensFromMethodCallExpression(
@NotNull PsiMethodCallExpression methodCallExpression, boolean ignoreClarifyingParentheses) {
final PsiReferenceExpression target = methodCallExpression.getMethodExpression();
final PsiExpressionList argumentList = methodCallExpression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
removeParentheses(target, ignoreClarifyingParentheses);
for (final PsiExpression argument : arguments) {
removeParentheses(argument, ignoreClarifyingParentheses);
}
}
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
if (argumentsContainCatchParameter || !visited.add(expression)) {
return;
}
super.visitReferenceExpression(expression);
final PsiElement target = expression.resolve();
if (!parameter.equals(target)) {
if (target instanceof PsiLocalVariable) {
final PsiLocalVariable variable = (PsiLocalVariable) target;
final Query<PsiReference> query =
ReferencesSearch.search(variable, variable.getUseScope(), false);
query.forEach(
reference -> {
final PsiElement element = reference.getElement();
final PsiElement parent =
PsiTreeUtil.skipParentsOfType(element, PsiParenthesizedExpression.class);
if (!(parent instanceof PsiReferenceExpression)) {
return true;
}
final PsiElement grandParent = parent.getParent();
if (!(grandParent instanceof PsiMethodCallExpression)) {
return true;
}
final PsiMethodCallExpression methodCallExpression =
(PsiMethodCallExpression) grandParent;
final PsiExpressionList argumentList = methodCallExpression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
for (PsiExpression argument : arguments) {
argument.accept(ReferenceFinder.this);
}
return true;
});
final PsiExpression initializer = variable.getInitializer();
if (initializer != null) {
initializer.accept(this);
}
}
return;
}
if (ignoreGetMessage) {
argumentsContainCatchParameter = true;
} else {
final PsiElement parent = expression.getParent();
if (parent instanceof PsiReferenceExpression) {
final PsiElement grandParent = parent.getParent();
if (grandParent instanceof PsiMethodCallExpression) {
return;
}
}
argumentsContainCatchParameter = true;
}
}
private static boolean methodCallExpressionsAreEquivalent(
@NotNull PsiMethodCallExpression methodExp1, @NotNull PsiMethodCallExpression methodExp2) {
final PsiReferenceExpression methodExpression1 = methodExp1.getMethodExpression();
final PsiReferenceExpression methodExpression2 = methodExp2.getMethodExpression();
if (!expressionsAreEquivalent(methodExpression1, methodExpression2)) {
return false;
}
final PsiExpressionList argumentList1 = methodExp1.getArgumentList();
final PsiExpression[] args1 = argumentList1.getExpressions();
final PsiExpressionList argumentList2 = methodExp2.getArgumentList();
final PsiExpression[] args2 = argumentList2.getExpressions();
return expressionListsAreEquivalent(args1, args2);
}
@Override
protected final void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiElement element = descriptor.getPsiElement();
final PsiTypeElement castTypeElement;
final PsiReferenceExpression reference;
if (element instanceof PsiTypeCastExpression) {
final PsiTypeCastExpression typeCastExpression = (PsiTypeCastExpression) element;
castTypeElement = typeCastExpression.getCastType();
final PsiExpression operand = typeCastExpression.getOperand();
if (!(operand instanceof PsiReferenceExpression)) {
return;
}
reference = (PsiReferenceExpression) operand;
} else if (element instanceof PsiMethodCallExpression) {
final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) element;
final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (!(qualifier instanceof PsiClassObjectAccessExpression)) {
return;
}
final PsiClassObjectAccessExpression classObjectAccessExpression =
(PsiClassObjectAccessExpression) qualifier;
castTypeElement = classObjectAccessExpression.getOperand();
final PsiExpressionList argumentList = methodCallExpression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 1) {
return;
}
final PsiExpression argument = arguments[0];
if (!(argument instanceof PsiReferenceExpression)) {
return;
}
reference = (PsiReferenceExpression) argument;
} else {
return;
}
if (castTypeElement == null) {
return;
}
final PsiInstanceOfExpression conflictingInstanceof =
InstanceOfUtils.getConflictingInstanceof(castTypeElement.getType(), reference, element);
final PsiTypeElement instanceofTypeElement = conflictingInstanceof.getCheckType();
if (instanceofTypeElement == null) {
return;
}
final PsiElement newElement = replace(castTypeElement, instanceofTypeElement);
final JavaCodeStyleManager codeStyleManager = JavaCodeStyleManager.getInstance(project);
codeStyleManager.shortenClassReferences(newElement);
}
@Override
public void visitMethodCallExpression(PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiReferenceExpression methodExpression = expression.getMethodExpression();
final String methodName = methodExpression.getReferenceName();
if (!"cast".equals(methodName)) {
return;
}
final PsiMethod method = expression.resolveMethod();
if (method == null) {
return;
}
final PsiClass containingClass = method.getContainingClass();
if (containingClass == null) {
return;
}
final String qualifiedName = containingClass.getQualifiedName();
if (!"java.lang.Class".equals(qualifiedName)) {
return;
}
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (!(qualifier instanceof PsiClassObjectAccessExpression)) {
return;
}
final PsiClassObjectAccessExpression classObjectAccessExpression =
(PsiClassObjectAccessExpression) qualifier;
final PsiTypeElement operand = classObjectAccessExpression.getOperand();
final PsiType castType = operand.getType();
if (!(castType instanceof PsiClassType)) {
return;
}
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 1) {
return;
}
final PsiExpression argument = arguments[0];
if (!(argument instanceof PsiReferenceExpression)) {
return;
}
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) argument;
final PsiInstanceOfExpression conflictingInstanceof =
InstanceOfUtils.getConflictingInstanceof(castType, referenceExpression, expression);
if (conflictingInstanceof == null) {
return;
}
final PsiTypeElement instanceofTypeElement = conflictingInstanceof.getCheckType();
registerError(expression, referenceExpression, operand, instanceofTypeElement);
}
private boolean isListGetLookup(PsiElement element,
String indexName,
PsiVariable listVariable) {
if (!(element instanceof PsiExpression)) {
return false;
}
final PsiExpression expression = (PsiExpression)element;
if (!expressionIsListGetLookup(expression)) {
return false;
}
final PsiMethodCallExpression methodCallExpression =
(PsiMethodCallExpression)
ParenthesesUtils.stripParentheses(expression);
if (methodCallExpression == null) {
return false;
}
final PsiReferenceExpression methodExpression =
methodCallExpression.getMethodExpression();
final PsiExpression qualifierExpression =
methodExpression.getQualifierExpression();
final PsiExpressionList argumentList =
methodCallExpression.getArgumentList();
final PsiExpression[] expressions = argumentList.getExpressions();
if (expressions.length != 1) {
return false;
}
if (!indexName.equals(expressions[0].getText())) {
return false;
}
if (qualifierExpression == null ||
qualifierExpression instanceof PsiThisExpression ||
qualifierExpression instanceof PsiSuperExpression) {
return listVariable == null;
}
if (!(qualifierExpression instanceof PsiReferenceExpression)) {
return false;
}
final PsiReferenceExpression referenceExpression =
(PsiReferenceExpression)qualifierExpression;
final PsiExpression qualifier =
referenceExpression.getQualifierExpression();
if (qualifier != null && !(qualifier instanceof PsiThisExpression) &&
!(qualifier instanceof PsiSuperExpression)) {
return false;
}
final PsiElement target = referenceExpression.resolve();
return listVariable.equals(target);
}
private static PsiSubstitutor inferTypeParametersForStaticFactory(
@NotNull PsiMethod staticFactoryMethod, PsiNewExpression expression, PsiElement parent) {
final JavaPsiFacade facade = JavaPsiFacade.getInstance(staticFactoryMethod.getProject());
final PsiResolveHelper resolveHelper = facade.getResolveHelper();
final PsiParameter[] parameters = staticFactoryMethod.getParameterList().getParameters();
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] expressions = argumentList.getExpressions();
return resolveHelper.inferTypeArguments(
staticFactoryMethod.getTypeParameters(),
parameters,
expressions,
PsiSubstitutor.EMPTY,
parent,
DefaultParameterTypeInferencePolicy.INSTANCE);
}
@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiReferenceExpression methodExpression = expression.getMethodExpression();
final String methodName = methodExpression.getReferenceName();
if (!HardcodedMethodConstants.NOTIFY.equals(methodName)) {
return;
}
final PsiExpressionList argumentList = expression.getArgumentList();
if (argumentList.getExpressions().length != 0) {
return;
}
registerMethodCallError(expression);
}
private static boolean expressionIsArrayToCollectionCopy(
PsiExpression expression, PsiVariable variable, boolean shouldBeOffsetArrayAccess) {
expression = ParenthesesUtils.stripParentheses(expression);
if (expression == null) {
return false;
}
if (!(expression instanceof PsiMethodCallExpression)) {
return false;
}
final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) expression;
final PsiExpressionList argumentList = methodCallExpression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 1) {
return false;
}
final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (!(qualifier instanceof PsiReferenceExpression)
&& !(qualifier instanceof PsiThisExpression)
&& !(qualifier instanceof PsiSuperExpression)) {
return false;
}
final PsiExpression argument = arguments[0];
final PsiType argumentType = argument.getType();
if (argumentType instanceof PsiPrimitiveType) {
return false;
}
if (SideEffectChecker.mayHaveSideEffects(argument)) {
return false;
}
if (shouldBeOffsetArrayAccess) {
if (!ExpressionUtils.isOffsetArrayAccess(argument, variable)) {
return false;
}
} else if (!VariableAccessUtils.evaluatesToVariable(argument, variable)) {
return false;
}
final PsiMethod method = methodCallExpression.resolveMethod();
if (method == null) {
return false;
}
@NonNls final String name = method.getName();
if (!name.equals("add")) {
return false;
}
final PsiClass containingClass = method.getContainingClass();
return InheritanceUtil.isInheritor(containingClass, CommonClassNames.JAVA_UTIL_COLLECTION);
}
private void processChangedMethodCall(PsiElement element) throws IncorrectOperationException {
if (element.getParent() instanceof PsiMethodCallExpression) {
PsiMethodCallExpression methodCall = (PsiMethodCallExpression) element.getParent();
if (myMethodToReplaceIn == myMethodToSearchFor
&& PsiTreeUtil.isAncestor(methodCall, myParameterInitializer, false)) return;
PsiElementFactory factory =
JavaPsiFacade.getInstance(methodCall.getProject()).getElementFactory();
PsiExpression expression = factory.createExpressionFromText(myParameterName, null);
final PsiExpressionList argList = methodCall.getArgumentList();
final PsiExpression[] exprs = argList.getExpressions();
boolean first = false;
PsiElement anchor = null;
if (myMethodToSearchFor.isVarArgs()) {
final int oldParamCount = myMethodToSearchFor.getParameterList().getParametersCount() - 1;
if (exprs.length >= oldParamCount) {
if (oldParamCount > 1) {
anchor = exprs[oldParamCount - 2];
} else {
first = true;
anchor = null;
}
} else {
anchor = exprs[exprs.length - 1];
}
} else if (exprs.length > 0) {
anchor = exprs[exprs.length - 1];
}
if (anchor != null) {
argList.addAfter(expression, anchor);
} else {
if (first && exprs.length > 0) {
argList.addBefore(expression, exprs[0]);
} else {
argList.add(expression);
}
}
removeParametersFromCall(argList);
} else {
LOG.error(element.getParent());
}
}
private void updateRefMethod(
PsiElement psiResolved,
RefElement refResolved,
PsiElement refExpression,
final PsiElement psiFrom,
final RefElement refFrom) {
PsiMethod psiMethod = (PsiMethod) psiResolved;
RefMethodImpl refMethod = (RefMethodImpl) refResolved;
PsiMethodCallExpression call =
PsiTreeUtil.getParentOfType(refExpression, PsiMethodCallExpression.class);
if (call != null) {
PsiType returnType = psiMethod.getReturnType();
if (!psiMethod.isConstructor() && returnType != PsiType.VOID) {
if (!(call.getParent() instanceof PsiExpressionStatement)) {
refMethod.setReturnValueUsed(true);
}
addTypeReference(psiFrom, returnType, refFrom.getRefManager());
}
PsiExpressionList argumentList = call.getArgumentList();
if (argumentList.getExpressions().length > 0) {
refMethod.updateParameterValues(argumentList.getExpressions());
}
final PsiExpression psiExpression = call.getMethodExpression().getQualifierExpression();
if (psiExpression != null) {
final PsiType usedType = psiExpression.getType();
if (usedType != null) {
final String fqName = psiMethod.getContainingClass().getQualifiedName();
if (fqName != null) {
final PsiClassType methodOwnerType =
JavaPsiFacade.getInstance(call.getProject())
.getElementFactory()
.createTypeByFQClassName(
fqName, GlobalSearchScope.allScope(psiMethod.getProject()));
if (!usedType.equals(methodOwnerType)) {
refMethod.setCalledOnSubClass(true);
}
}
}
}
}
}
private static PsiSubstitutor inferTypeParametersForStaticFactory(
@NotNull PsiMethod staticFactoryMethod,
PsiNewExpression expression,
final PsiElement parent,
final boolean varargs) {
final PsiExpressionList argumentList = expression.getArgumentList();
if (argumentList != null) {
final MethodCandidateInfo staticFactoryCandidateInfo =
new MethodCandidateInfo(
staticFactoryMethod,
PsiSubstitutor.EMPTY,
false,
false,
argumentList,
parent,
argumentList.getExpressionTypes(),
null) {
@Override
public boolean isVarargs() {
return varargs;
}
@Override
protected PsiElement getParent() {
return parent;
}
@Override
protected PsiElement getMarkerList() {
return parent instanceof PsiNewExpression
? ((PsiNewExpression) parent).getArgumentList()
: super.getMarkerList();
}
};
if (!varargs
&& staticFactoryMethod.isVarArgs()
&& staticFactoryCandidateInfo.getPertinentApplicabilityLevel()
< MethodCandidateInfo.ApplicabilityLevel.FIXED_ARITY) {
return inferTypeParametersForStaticFactory(staticFactoryMethod, expression, parent, true);
}
return staticFactoryCandidateInfo.getSubstitutor();
} else {
return PsiSubstitutor.EMPTY;
}
}
@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression call) {
if (read || written) {
return;
}
super.visitMethodCallExpression(call);
final PsiExpressionList argumentList = call.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
for (final PsiExpression argument : arguments) {
final VariableUsedVisitor visitor = new VariableUsedVisitor(variable);
argument.accept(visitor);
if (visitor.isUsed()) {
read = true;
reference = visitor.getReference();
return;
}
}
}
