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slot-ref and slot-set! accept field names in addition to positions

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Alex Shinn 2014-11-24 19:45:31 +09:00
parent a2d86de1cd
commit e0afb1df85
1 changed files with 8 additions and 2 deletions
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10
vm.c
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@ -1532,7 +1532,10 @@ sexp sexp_apply (sexp ctx, sexp proc, sexp args) {
sexp_raise("slotn-ref: not a record type", sexp_list1(ctx, _ARG1));
else if (! sexp_check_type(ctx, _ARG2, _ARG1))
sexp_raise("slotn-ref: bad type", sexp_list1(ctx, _ARG2));
else if (! sexp_fixnump(_ARG3))
if (! sexp_fixnump(_ARG3))
for (i = 0, tmp1 = sexp_type_slots(_ARG1); sexp_pairp(tmp1); tmp1 = sexp_cdr(tmp1), ++i)
if (sexp_car(tmp1) == _ARG3) { _ARG3 = sexp_make_fixnum(i); break; }
if (! sexp_fixnump(_ARG3))
sexp_raise("slotn-ref: not an integer", sexp_list1(ctx, _ARG3));
_ARG3 = sexp_slot_ref(_ARG2, sexp_unbox_fixnum(_ARG3));
top-=2;
@ -1545,7 +1548,10 @@ sexp sexp_apply (sexp ctx, sexp proc, sexp args) {
sexp_raise("slotn-set!: bad type", sexp_list1(ctx, _ARG2));
else if (sexp_immutablep(_ARG2))
sexp_raise("slotn-set!: immutable object", sexp_list1(ctx, _ARG2));
else if (! sexp_fixnump(_ARG3))
if (! sexp_fixnump(_ARG3))
for (i = 0, tmp1 = sexp_type_slots(_ARG1); sexp_pairp(tmp1); tmp1 = sexp_cdr(tmp1), ++i)
if (sexp_car(tmp1) == _ARG3) { _ARG3 = sexp_make_fixnum(i); break; }
if (! sexp_fixnump(_ARG3))
sexp_raise("slotn-set!: not an integer", sexp_list1(ctx, _ARG3));
sexp_slot_set(_ARG2, sexp_unbox_fixnum(_ARG3), _ARG4);
top-=4;