@Nullable
public static JetElement getEnclosingElementForLocalDeclaration(
@Nullable JetNamedDeclaration declaration) {
if (declaration instanceof JetTypeParameter) {
declaration = PsiTreeUtil.getParentOfType(declaration, JetNamedDeclaration.class);
} else if (declaration instanceof JetParameter) {
PsiElement parent = declaration.getParent();
if (parent != null && parent.getParent() instanceof JetNamedFunction) {
declaration = (JetNamedFunction) parent.getParent();
}
}
//noinspection unchecked
JetElement container =
PsiTreeUtil.getParentOfType(
declaration,
JetBlockExpression.class,
JetClassInitializer.class,
JetProperty.class,
JetFunction.class,
JetParameter.class);
if (container == null) return null;
return (container instanceof JetClassInitializer)
? ((JetClassInitializer) container).getBody()
: container;
}
@Nullable
public static FqName getFQName(@NotNull JetNamedDeclaration namedDeclaration) {
Name name = namedDeclaration.getNameAsName();
if (name == null) {
return null;
}
PsiElement parent = namedDeclaration.getParent();
if (parent instanceof JetClassBody) {
// One nesting to JetClassBody doesn't affect to qualified name
parent = parent.getParent();
}
FqName firstPart = null;
if (parent instanceof JetFile) {
firstPart = getFQName((JetFile) parent);
} else if (parent instanceof JetNamedFunction || parent instanceof JetClass) {
firstPart = getFQName((JetNamedDeclaration) parent);
} else if (namedDeclaration instanceof JetParameter) {
JetClass constructorClass = getClassIfParameterIsProperty((JetParameter) namedDeclaration);
if (constructorClass != null) {
firstPart = getFQName(constructorClass);
}
} else if (parent instanceof JetObjectDeclaration) {
if (parent.getParent() instanceof JetClassObject) {
JetClassOrObject classOrObject =
PsiTreeUtil.getParentOfType(parent, JetClassOrObject.class);
if (classOrObject != null) {
firstPart = getFQName(classOrObject);
}
} else {
firstPart = getFQName((JetNamedDeclaration) parent);
}
}
if (firstPart == null) {
return null;
}
return firstPart.child(name);
}