public static boolean containsMember(@Nullable PsiType qualifierType, @NotNull Object object) { if (qualifierType instanceof PsiArrayType && object instanceof PsiMember) { // length and clone() PsiFile file = ((PsiMember) object).getContainingFile(); if (file == null || file.getVirtualFile() == null) { // yes, they're a bit dummy return true; } } else if (qualifierType instanceof PsiClassType) { PsiClass qualifierClass = ((PsiClassType) qualifierType).resolve(); if (qualifierClass == null) return false; if (object instanceof PsiMethod && qualifierClass.findMethodBySignature((PsiMethod) object, false) != null) { return true; } if (object instanceof PsiMember) { return qualifierClass.equals(((PsiMember) object).getContainingClass()); } } return false; }