@Override
public void visitReferenceExpression(@NotNull PsiReferenceExpression reference) {
if (used) {
return;
}
super.visitReferenceExpression(reference);
final PsiElement element = reference.resolve();
if (parameter.equals(element)) {
used = true;
}
}
@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;
}
}
public static int getParameterIndex(
@NotNull PsiParameter parameter, @NotNull PsiParameterList parameterList) {
PsiParameter[] parameters = parameterList.getParameters();
for (int i = 0; i < parameters.length; i++) {
PsiParameter paramInList = parameters[i];
if (parameter.equals(paramInList)) return i;
}
String name = parameter.getName();
PsiParameter suspect = null;
int i;
for (i = parameters.length - 1; i >= 0; i--) {
PsiParameter paramInList = parameters[i];
if (name.equals(paramInList.getName())) {
suspect = paramInList;
break;
}
}
String message =
parameter
+ ":"
+ parameter.getClass()
+ " not found among parameters: "
+ Arrays.asList(parameters)
+ "."
+ " parameterList' parent: "
+ parameterList.getParent()
+ ";"
+ " parameter.getParent()==paramList: "
+ (parameter.getParent() == parameterList)
+ "; "
+ parameterList.getClass()
+ ";"
+ " parameter.isValid()="
+ parameter.isValid()
+ ";"
+ " parameterList.isValid()= "
+ parameterList.isValid()
+ ";"
+ " parameterList stub: "
+ (parameterList instanceof StubBasedPsiElement
? ((StubBasedPsiElement) parameterList).getStub()
: "---")
+ "; "
+ " parameter stub: "
+ (parameter instanceof StubBasedPsiElement
? ((StubBasedPsiElement) parameter).getStub()
: "---")
+ ";"
+ " suspect: "
+ suspect
+ " (index="
+ i
+ "); "
+ (suspect == null ? null : suspect.getClass())
+ " suspect stub: "
+ (suspect instanceof StubBasedPsiElement
? ((StubBasedPsiElement) suspect).getStub()
: suspect == null ? "-null-" : "---" + suspect.getClass())
+ ";"
+ " parameter.equals(suspect) = "
+ parameter.equals(suspect)
+ "; "
+ " parameter.getNode() == suspect.getNode(): "
+ (parameter.getNode() == (suspect == null ? null : suspect.getNode()))
+ "; "
+ ".";
LOG.error(message);
return i;
}
private void addTypesByVariable(
HashSet<PsiType> typesSet,
PsiVariable var,
PsiFile scopeFile,
HashSet<PsiVariable> checkedVariables,
int flags,
TextRange rangeToIgnore) {
if (!checkedVariables.add(var)) return;
// System.out.println("analyzing usages of " + var + " in file " + scopeFile);
SearchScope searchScope = new LocalSearchScope(scopeFile);
if (BitUtil.isSet(flags, CHECK_USAGE) || BitUtil.isSet(flags, CHECK_DOWN)) {
for (PsiReference varRef : ReferencesSearch.search(var, searchScope, false)) {
PsiElement ref = varRef.getElement();
if (BitUtil.isSet(flags, CHECK_USAGE)) {
PsiType type = guessElementTypeFromReference(myMethodPatternMap, ref, rangeToIgnore);
if (type != null && !(type instanceof PsiPrimitiveType)) {
typesSet.add(type);
}
}
if (BitUtil.isSet(flags, CHECK_DOWN)) {
if (ref.getParent() instanceof PsiExpressionList
&& ref.getParent().getParent() instanceof PsiMethodCallExpression) { // TODO : new
PsiExpressionList list = (PsiExpressionList) ref.getParent();
PsiExpression[] args = list.getExpressions();
int argIndex = -1;
for (int j = 0; j < args.length; j++) {
PsiExpression arg = args[j];
if (arg.equals(ref)) {
argIndex = j;
break;
}
}
PsiMethodCallExpression methodCall = (PsiMethodCallExpression) list.getParent();
PsiMethod method = (PsiMethod) methodCall.getMethodExpression().resolve();
if (method != null) {
PsiParameter[] parameters = method.getParameterList().getParameters();
if (argIndex < parameters.length) {
addTypesByVariable(
typesSet,
parameters[argIndex],
method.getContainingFile(),
checkedVariables,
flags | CHECK_USAGE,
rangeToIgnore);
}
}
}
}
}
}
if (BitUtil.isSet(flags, CHECK_UP)) {
if (var instanceof PsiParameter
&& var.getParent() instanceof PsiParameterList
&& var.getParent().getParent() instanceof PsiMethod) {
PsiParameterList list = (PsiParameterList) var.getParent();
PsiParameter[] parameters = list.getParameters();
int argIndex = -1;
for (int i = 0; i < parameters.length; i++) {
PsiParameter parameter = parameters[i];
if (parameter.equals(var)) {
argIndex = i;
break;
}
}
PsiMethod method = (PsiMethod) var.getParent().getParent();
// System.out.println("analyzing usages of " + method + " in file " + scopeFile);
for (PsiReference methodRef : ReferencesSearch.search(method, searchScope, false)) {
PsiElement ref = methodRef.getElement();
if (ref.getParent() instanceof PsiMethodCallExpression) {
PsiMethodCallExpression methodCall = (PsiMethodCallExpression) ref.getParent();
PsiExpression[] args = methodCall.getArgumentList().getExpressions();
if (args.length <= argIndex) continue;
PsiExpression arg = args[argIndex];
if (arg instanceof PsiReferenceExpression) {
PsiElement refElement = ((PsiReferenceExpression) arg).resolve();
if (refElement instanceof PsiVariable) {
addTypesByVariable(
typesSet,
(PsiVariable) refElement,
scopeFile,
checkedVariables,
flags | CHECK_USAGE,
rangeToIgnore);
}
}
// TODO : constructor
}
}
}
}
}
