@Nullable
public static ValueParameterDescriptor getAnnotationParameterByName(
@NotNull Name name, @NotNull ClassDescriptor annotationClass) {
Collection<ConstructorDescriptor> constructors = annotationClass.getConstructors();
assert constructors.size() == 1 : "Annotation class descriptor must have only one constructor";
for (ValueParameterDescriptor parameter : constructors.iterator().next().getValueParameters()) {
if (parameter.getName().equals(name)) {
return parameter;
}
}
return null;
}
@NotNull
public static Collection<JavaClass> getClassesInPackage(@NotNull JavaPackage javaPackage) {
Collection<JavaClass> classes = javaPackage.getClasses();
Set<FqName> addedQualifiedNames = new HashSet<FqName>(classes.size());
List<JavaClass> result = new ArrayList<JavaClass>(classes.size());
for (JavaClass javaClass : classes) {
FqName fqName = javaClass.getFqName();
if (fqName != null && addedQualifiedNames.add(fqName)) {
result.add(javaClass);
}
}
return result;
}
/**
* @see
* com.intellij.psi.util.TypeConversionUtil#typeParameterErasure(com.intellij.psi.PsiTypeParameter)
*/
@Nullable
private static JavaType typeParameterErasure(
@NotNull JavaTypeParameter typeParameter,
@NotNull HashSet<JavaTypeParameter> visited,
@NotNull JavaTypeSubstitutor substitutor) {
Collection<JavaClassifierType> upperBounds = typeParameter.getUpperBounds();
if (!upperBounds.isEmpty()) {
JavaClassifier classifier = upperBounds.iterator().next().getClassifier();
if (classifier instanceof JavaTypeParameter && !visited.contains(classifier)) {
JavaTypeParameter typeParameterBound = (JavaTypeParameter) classifier;
visited.add(typeParameterBound);
JavaType substitutedType = substitutor.substitute(typeParameterBound);
if (substitutedType != null) {
return erasure(substitutedType);
}
return typeParameterErasure(typeParameterBound, visited, substitutor);
} else if (classifier instanceof JavaClass) {
return ((JavaClass) classifier).getDefaultType();
}
}
return typeParameter.getTypeProvider().createJavaLangObjectType();
}
