callable?

Summary

Test whether val is callable

Description

This means basically anything where procedure? returns true, as well as macros, since they are just standard procedures, but ones who run during compile time.

Arguments

Return value

Examples

(callable? (current-closure))
#f

(callable? sin)
#t

(callable? min)
#t

(and (macro? case) (callable? case))
#t

Bytecode

Probably only interesting to you if you want to understand more about the Nujel VM or care very much about performance.

(    0 ($push/val :macro))
(    2 ($get/val 'type-of))
(    4 ($get/val 'val))
(    6 ($apply 1))
(    8 ($=))
(    9 ($dup))
(   10 ($jt* 17))
(   13 ($drop))
(   14 ($get/val 'procedure?))
(   16 ($get/val 'val))
(   18 ($apply 1))
(   20 ($dup))
(   21 ($jt* 6))
(   24 ($drop))
(   25 ($push/val #f))
(   27 ($ret))