ClassNameOrExpression-class: Class "ClassNameOrExpression" to represent type information...
In TypeInfo: Optional Type Specification Prototype

Description Objects from the Class Methods Author(s) See Also

This class is used to represent a type test that is specified either as a collection of class names (and whether to check for strict equality or inheritance) or a dynamic predicate expression that is evaluated at run-time to determine whether the test is satisfied.

We may not need this in the "new" class hierarchy. It was created originally to be a union of character vectors, calls or expressions. But now that we have NamedTypeTest and DynamicTypeTest, we could perhaps use a common base class.

A virtual Class: No objects may be created from it.

No methods defined with class "ClassNameOrExpression" in the signature.

Duncan Temple Lang <duncan@wald.ucdavis.edu>

TypedSignature TypedSignature-class ReturnTypeSpecification

TypeInfo documentation built on Nov. 8, 2020, 5:40 p.m.