31 lines
620 B
C
31 lines
620 B
C
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#include "picrin.h"
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#include "picrin/box.h"
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pic_value
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pic_box(pic_state *pic, pic_value value)
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{
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struct pic_box *box;
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box = (struct pic_box *)pic_obj_alloc(pic, sizeof(struct pic_box), PIC_TT_BOX);
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box->value = value;
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return pic_obj_value(box);
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}
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pic_value
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pic_unbox(pic_state *pic, pic_value box)
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{
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if (! pic_box_p(box)) {
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pic_errorf(pic, "expected box, but got ~s", box);
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}
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return pic_box_ptr(box)->value;
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}
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void
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pic_set_box(pic_state *pic, pic_value box, pic_value value)
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{
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if (! pic_box_p(box)) {
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pic_errorf(pic, "expected box, but got ~s", box);
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}
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pic_box_ptr(box)->value = value;
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}
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