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define-parse-method

Syntax

— Macro: define-parse-method name lambda-list &body body ⇒ name

Arguments and Values

type-name
A symbol naming the new foreign type.
lambda-list
A lambda list which is the argument list of the new foreign type.
body
One or more forms that provide a definition of the new foreign type.

Description

Examples

Taken from CFFI's :boolean type definition: 

    (define-foreign-type :boolean (&optional (base-type :int))
      "Boolean type. Maps to an :int by default. Only accepts integer types."
      (ecase base-type
        ((:char
          :unsigned-char
          :int
          :unsigned-int
          :long
          :unsigned-long) base-type)))
    
    CFFI> (canonicalize-foreign-type :boolean)
    ⇒ :INT
    CFFI> (canonicalize-foreign-type '(:boolean :long))
    ⇒ :LONG
    CFFI> (canonicalize-foreign-type '(:boolean :float))
    ;; error--> signalled by ECASE.

See Also

define-foreign-type