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Macros for programming in type-class-style in Scheme.
Andre Van Tonder
Documentation[syntax] (define-class NAME FIELD-FORM ...)
Defines a type class named NAME, where FIELD-FORM ... defines one or more fields for instances of this class. FIELD-FORM should be of the form:
FIELD-FORM = FIELD-LABEL | (SUPERCLASS-NAME FIELD-LABEL)
SUPERCLASS-NAME is the name of a class from which the field is inherited.
The result of this macro is the creation of a constructor with name of the form MAKE-CLASSNAME, which in turn takes an instance constructor procedure and applies to the given field values.[syntax] (define=> (<PROCEDURE-NAME> <CLASS-FORM> ...) . BODY)
Defines a procedure such that all fields in the superclasses of the given class(es) are visible in the scope of the procedure body.
CLASS-FORM is of the following form:
CLASS-FORM = CLASS-NAME | (CLASS-NAME PREFIX-SYMBOL)[syntax] (lambda=> (<CLASS-FORM> ...) . BODY)
Anonymous procedure such that all fields in the superclasses of the given class are visible in the scope of the procedure body.
- 1.0 Initial Release
Copyright (c) 2004-2010, Andre van Tonder, Ivan Raikov.
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