public static boolean resolvesTo(PsiType type, String fqn) {
if (type instanceof PsiClassType) {
final PsiClass resolved = ((PsiClassType) type).resolve();
return resolved != null && fqn.equals(resolved.getQualifiedName());
}
return false;
}
public static boolean isClassType(@Nullable PsiType type, @NotNull String qName) {
if (type instanceof PsiClassType) {
final PsiClass psiClass = ((PsiClassType) type).resolve();
return psiClass != null && qName.equals(psiClass.getQualifiedName());
}
return false;
}
public static PsiType unboxPrimitiveTypeWrapper(@Nullable PsiType type) {
if (type instanceof PsiClassType) {
final PsiClass psiClass = ((PsiClassType) type).resolve();
if (psiClass != null) {
PsiType unboxed = ourQNameToUnboxed.get(psiClass.getQualifiedName());
if (unboxed != null) type = unboxed;
}
}
return type;
}
@NotNull
public static PsiType createSetType(@NotNull PsiElement context, @NotNull PsiType type) {
JavaPsiFacade facade = JavaPsiFacade.getInstance(context.getProject());
GlobalSearchScope resolveScope = context.getResolveScope();
PsiClass setClass = facade.findClass(JAVA_UTIL_SET, resolveScope);
if (setClass != null && setClass.getTypeParameters().length == 1) {
return facade.getElementFactory().createType(setClass, type);
}
return facade.getElementFactory().createTypeByFQClassName(JAVA_UTIL_SET, resolveScope);
}
@NotNull
public static PsiClassType createListType(@NotNull PsiClass elements) {
JavaPsiFacade facade = JavaPsiFacade.getInstance(elements.getProject());
GlobalSearchScope resolveScope = elements.getResolveScope();
PsiClass listClass = facade.findClass(JAVA_UTIL_LIST, resolveScope);
if (listClass == null) {
return facade.getElementFactory().createTypeByFQClassName(JAVA_UTIL_LIST, resolveScope);
}
return facade
.getElementFactory()
.createType(listClass, facade.getElementFactory().createType(elements));
}
@Nullable
private static PsiClassType createCollection(
Project project, String collectionName, PsiType... item) {
PsiElementFactory factory = JavaPsiFacade.getElementFactory(project);
PsiClass collection =
JavaPsiFacade.getInstance(project)
.findClass(collectionName, GlobalSearchScope.allScope(project));
if (collection == null) return null;
PsiTypeParameter[] parameters = collection.getTypeParameters();
if (parameters.length != 1) return null;
return factory.createType(collection, item);
}
public static boolean isAnnotatedCheckHierarchyWithCache(
@NotNull PsiClass aClass, @NotNull String annotationFQN) {
Map<String, PsiClass> classMap = getSuperClassesWithCache(aClass);
for (PsiClass psiClass : classMap.values()) {
PsiModifierList modifierList = psiClass.getModifierList();
if (modifierList != null) {
if (modifierList.findAnnotation(annotationFQN) != null) {
return true;
}
}
}
return false;
}
@Nullable
public static PsiType createJavaLangClassType(
@Nullable PsiType type, Project project, GlobalSearchScope resolveScope) {
final JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
PsiType result = null;
PsiClass javaLangClass = facade.findClass(JAVA_LANG_CLASS, resolveScope);
if (javaLangClass != null) {
PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
final PsiTypeParameter[] typeParameters = javaLangClass.getTypeParameters();
if (typeParameters.length == 1) {
substitutor = substitutor.put(typeParameters[0], type);
}
result = facade.getElementFactory().createType(javaLangClass, substitutor);
}
return result;
}
public static Map<String, PsiClass> getSuperClassesWithCache(@NotNull PsiClass aClass) {
Map<String, PsiClass> superClassNames = PARENT_CACHE_KEY.getCachedValue(aClass);
if (superClassNames == null) {
Set<PsiClass> superClasses = new THashSet<PsiClass>();
superClasses.add(aClass);
InheritanceUtil.getSuperClasses(aClass, superClasses, true);
superClassNames = new LinkedHashMap<String, PsiClass>();
for (PsiClass superClass : superClasses) {
superClassNames.put(superClass.getQualifiedName(), superClass);
}
superClassNames = PARENT_CACHE_KEY.putCachedValue(aClass, superClassNames);
}
return superClassNames;
}
@Nullable
private static Boolean isAssignableForNativeTypes(
@NotNull PsiType lType, @NotNull PsiClassType rType, @NotNull PsiElement context) {
if (!(lType instanceof PsiClassType)) return null;
final PsiClassType.ClassResolveResult leftResult = ((PsiClassType) lType).resolveGenerics();
final PsiClassType.ClassResolveResult rightResult = rType.resolveGenerics();
final PsiClass leftClass = leftResult.getElement();
PsiClass rightClass = rightResult.getElement();
if (rightClass == null || leftClass == null) return null;
if (!InheritanceUtil.isInheritorOrSelf(rightClass, leftClass, true)) return Boolean.FALSE;
PsiSubstitutor rightSubstitutor = rightResult.getSubstitutor();
if (!leftClass.hasTypeParameters()) return Boolean.TRUE;
PsiSubstitutor leftSubstitutor = leftResult.getSubstitutor();
if (!leftClass.getManager().areElementsEquivalent(leftClass, rightClass)) {
rightSubstitutor =
TypeConversionUtil.getSuperClassSubstitutor(leftClass, rightClass, rightSubstitutor);
rightClass = leftClass;
} else if (!rightClass.hasTypeParameters()) return Boolean.TRUE;
Iterator<PsiTypeParameter> li = PsiUtil.typeParametersIterator(leftClass);
Iterator<PsiTypeParameter> ri = PsiUtil.typeParametersIterator(rightClass);
while (li.hasNext()) {
if (!ri.hasNext()) return Boolean.FALSE;
PsiTypeParameter lp = li.next();
PsiTypeParameter rp = ri.next();
final PsiType typeLeft = leftSubstitutor.substitute(lp);
if (typeLeft == null) continue;
final PsiType typeRight = rightSubstitutor.substituteWithBoundsPromotion(rp);
if (typeRight == null) {
return Boolean.TRUE;
}
if (!isAssignableWithoutConversions(typeLeft, typeRight, context)) return Boolean.FALSE;
}
return Boolean.TRUE;
}