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clear a cached syntax object

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Another potential (but minor in practice) leak
This commit is contained in:
Matthew Flatt 2014-04-11 16:58:18 -06:00
parent 721750c27e
commit 86d5940139
1 changed files with 6 additions and 1 deletions
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7
racket/src/racket/src/compile.c
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@ -4783,8 +4783,13 @@ scheme_compile_expand_expr(Scheme_Object *form, Scheme_Comp_Env *env,
Scheme_Syntax *f;
rec[drec].pre_unwrapped = 1;
f = (Scheme_Syntax *)SCHEME_SYNTAX(var);
if (can_recycle_stx && !quick_stx)
if (can_recycle_stx && !quick_stx) {
quick_stx = can_recycle_stx;
((Scheme_Stx *)quick_stx)->val = NULL;
((Scheme_Stx *)quick_stx)->wraps = NULL;
((Scheme_Stx *)quick_stx)->u.modinfo_cache = NULL;
((Scheme_Stx *)quick_stx)->taints = NULL;
}
return f(form, env, rec, drec);
} else {
name = scheme_stx_taint_disarm(form, NULL);