An initial uppercase identifier.

no subtypes hierarchy

UIdentifier(String name, Boolean usePrefix = false)
  • name
    • Name must not be empty

    • Name may only contain letters, digits and underscores

    • Prefix must be present if necessary

  • usePrefix = false
    • Prefix must be present if necessary

prefixshared actual String prefix

The prefix for this kind of identifier – \i for a lowercase identifier, \I for an uppercase identifier.

Inherited Attributes
Attributes inherited from: Identifier
Attributes inherited from: Node
Attributes inherited from: Object
hash, string
copyshared actual UIdentifier copy(String name, Boolean usePrefix)

Creates a copy of this identifier. All parameters default to the value of the corresponding parameter of this instance.

equalsshared actual Boolean equals(Object that)

Determine if two values are equal. Implementations should respect the constraints that:

  • if x===y then x==y (reflexivity),
  • if x==y then y==x (symmetry),
  • if x==y and y==z then x==z (transitivity).

Furthermore it is recommended that implementations ensure that if x==y then x and y have the same concrete class.

A class which explicitly refines equals() is said to support value equality, and the equality operator == is considered much more meaningful for such classes than for a class which simply inherits the default implementation of identity equality from Identifiable.

Note that an implementation of equals() that always returns false does satisfy the constraints given above. Therefore, in very rare cases where there is no reasonable definition of value equality for a class, for example, function references (Callable), it is acceptable for equals() to be defined to return false for every argument.

Refines Object.equals
transformshared actual Result transform<out Result>(Transformer<Result> transformer)

Transform this node with the given transformer by calling the appropriate transformX method on the transformer.

If you have a Node node that’s actually an LIdentifier instance, then the runtime will call LIdentifier.transform; therefore, this method is by nature narrowing. This means that if transformer is a NarrowingTransformer, calling node.transform(transformer) is equivalent to calling transformer.transformNode(node). On the other hand, if transformer is a WideningTransformer, then the two operations are very different.

visitshared actual void visit(Visitor visitor)

Visit this node with the given visitor. Calls the appropriate visitX method on the visitor.

Refines Node.visit
Inherited Methods
Methods inherited from: Identifier
Methods inherited from: Node
Methods inherited from: Object