unbox-parameters ( parameters -- vregs reps )

Vocabulary

compiler.cfg.builder.alien

Inputs

parameters

a sequence

Outputs

vregs	a sequence
reps	a sequence

Word description

Unboxes a sequence of parameters to send to an ffi function.

Definition

USING: alien.c-types compiler.cfg.builder.alien.boxing
compiler.cfg.registers compiler.cfg.stacks.local kernel math
namespaces sequences sequences.generalizations ;

IN: compiler.cfg.builder.alien

:: unbox-parameters ( parameters -- vregs reps )
    parameters length <iota> <reversed> parameters
    [ [ <ds-loc> peek-loc ] [ base-type ] bi* unbox-parameter ]
    2 2 mnmap parameters mark-varargs [ concat ] bi@
    windows-arm64-varargs? get
    [ windows-vararg-parameters ] when
    parameters length neg <ds-loc> inc-stack ;