@Nullable
private static PsiType doNormalizeWildcardByPosition(
final PsiType type, final GrExpression expression, final GrExpression toplevel) {
if (type instanceof PsiCapturedWildcardType) {
return doNormalizeWildcardByPosition(
((PsiCapturedWildcardType) type).getWildcard(), expression, toplevel);
}
if (type instanceof PsiWildcardType) {
final PsiWildcardType wildcardType = (PsiWildcardType) type;
if (PsiUtil.isAccessedForWriting(toplevel)) {
return wildcardType.isSuper()
? wildcardType.getBound()
: PsiCapturedWildcardType.create(wildcardType, expression);
} else {
if (wildcardType.isExtends()) {
return wildcardType.getBound();
} else {
return PsiType.getJavaLangObject(expression.getManager(), expression.getResolveScope());
}
}
} else if (type instanceof PsiArrayType) {
final PsiType componentType = ((PsiArrayType) type).getComponentType();
final PsiType normalizedComponentType =
doNormalizeWildcardByPosition(componentType, expression, toplevel);
if (normalizedComponentType != componentType) {
assert normalizedComponentType != null;
return normalizedComponentType.createArrayType();
}
}
return type;
}
@Nullable
public static PsiType normalizeWildcardTypeByPosition(
@NotNull PsiType type, @NotNull GrExpression expression) {
GrExpression toplevel = expression;
while (toplevel.getParent() instanceof GrIndexProperty
&& ((GrIndexProperty) toplevel.getParent()).getInvokedExpression() == toplevel) {
toplevel = (GrExpression) toplevel.getParent();
}
final PsiType normalized = doNormalizeWildcardByPosition(type, expression, toplevel);
if (normalized instanceof PsiClassType && !PsiUtil.isAccessedForWriting(toplevel)) {
return com.intellij.psi.util.PsiUtil.captureToplevelWildcards(normalized, expression);
}
return normalized;
}
@Override
protected void processIntention(@NotNull PsiElement element, Project project, Editor editor)
throws IncorrectOperationException {
final GrField field;
if (element.getParent() instanceof GrField) {
field = (GrField) element.getParent();
} else {
final PsiReference ref = element.getReference();
LOG.assertTrue(ref != null);
PsiElement resolved = ref.resolve();
if (resolved instanceof GrAccessorMethod) {
resolved = ((GrAccessorMethod) resolved).getProperty();
}
LOG.assertTrue(resolved instanceof GrField);
field = (GrField) resolved;
}
final HashSet<PsiReference> usages = new HashSet<PsiReference>();
usages.addAll(ReferencesSearch.search(field).findAll());
final GrAccessorMethod[] getters = field.getGetters();
for (GrAccessorMethod getter : getters) {
usages.addAll(MethodReferencesSearch.search(getter).findAll());
}
final GrAccessorMethod setter = field.getSetter();
if (setter != null) {
usages.addAll(MethodReferencesSearch.search(setter).findAll());
}
final String fieldName = field.getName();
LOG.assertTrue(fieldName != null);
final Collection<PsiElement> fieldUsages = new HashSet<PsiElement>();
MultiMap<PsiElement, String> conflicts = new MultiMap<PsiElement, String>();
for (PsiReference usage : usages) {
final PsiElement psiElement = usage.getElement();
if (PsiUtil.isMethodUsage(psiElement)) continue;
if (!GroovyFileType.GROOVY_LANGUAGE.equals(psiElement.getLanguage())) {
conflicts.putValue(
psiElement,
GroovyIntentionsBundle.message("closure.is.accessed.outside.of.groovy", fieldName));
} else {
if (psiElement instanceof GrReferenceExpression) {
fieldUsages.add(psiElement);
if (PsiUtil.isAccessedForWriting((GrExpression) psiElement)) {
conflicts.putValue(
psiElement,
GroovyIntentionsBundle.message("write.access.to.closure.variable", fieldName));
}
} else if (psiElement instanceof GrArgumentLabel) {
conflicts.putValue(
psiElement,
GroovyIntentionsBundle.message("field.is.used.in.argument.label", fieldName));
}
}
}
final PsiClass containingClass = field.getContainingClass();
final GrExpression initializer = field.getInitializerGroovy();
LOG.assertTrue(initializer != null);
final PsiType type = initializer.getType();
LOG.assertTrue(type instanceof GrClosureType);
final GrSignature signature = ((GrClosureType) type).getSignature();
final List<MethodSignature> signatures =
GrClosureSignatureUtil.generateAllMethodSignaturesBySignature(fieldName, signature);
for (MethodSignature s : signatures) {
final PsiMethod method = MethodSignatureUtil.findMethodBySignature(containingClass, s, true);
if (method != null) {
conflicts.putValue(
method,
GroovyIntentionsBundle.message(
"method.with.signature.already.exists",
GroovyPresentationUtil.getSignaturePresentation(s)));
}
}
if (conflicts.size() > 0) {
final ConflictsDialog conflictsDialog =
new ConflictsDialog(
project,
conflicts,
new Runnable() {
@Override
public void run() {
execute(field, fieldUsages);
}
});
conflictsDialog.show();
if (conflictsDialog.getExitCode() != DialogWrapper.OK_EXIT_CODE) return;
}
execute(field, fieldUsages);
}