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make-syntactic-closure generates a copy of existing closures, to allow for syntax generated syntax.

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Alex Shinn 2013-10-07 18:57:43 +09:00
parent 03b4ccc848
commit a887b49e0c
1 changed files with 10 additions and 4 deletions
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14
eval.c
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@ -360,12 +360,18 @@ static sexp sexp_make_macro (sexp ctx, sexp p, sexp e) {
sexp sexp_make_synclo_op (sexp ctx, sexp self, sexp_sint_t n, sexp env, sexp fv, sexp expr) {
sexp res;
if (! (sexp_symbolp(expr) || sexp_pairp(expr)))
if (! (sexp_symbolp(expr) || sexp_pairp(expr) || sexp_synclop(expr)))
return expr;
res = sexp_alloc_type(ctx, synclo, SEXP_SYNCLO);
sexp_synclo_env(res) = env;
sexp_synclo_free_vars(res) = fv;
sexp_synclo_expr(res) = expr;
if (sexp_synclop(expr)) {
sexp_synclo_env(res) = sexp_synclo_env(expr);
sexp_synclo_free_vars(res) = sexp_synclo_free_vars(expr);
sexp_synclo_expr(res) = sexp_synclo_expr(expr);
} else {
sexp_synclo_env(res) = env;
sexp_synclo_free_vars(res) = fv;
sexp_synclo_expr(res) = expr;
}
return res;
}