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actually compile start-stack to something useful

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* ice-9/boot-9.scm (start-stack): Define as a defmacro instead of an acro
  in C. We have a way to delay evaluation of the exp, after all: putting
  it in a thunk is sufficient.

* libguile/debug.h:
* libguile/debug.c (scm_sys_start_stack): Renamed from scm_start_stack,
  and exposed to the user. Takes a thunk instead of an expression +
  environment.
  (scm_m_start_stack): Remove this acro.

* module/language/scheme/translate.scm (custom-transformer-table): Remove
  the start-stack special case.
This commit is contained in:
Andy Wingo 2008-09-26 12:03:36 +02:00
parent 99b1dd09cc
commit 107139eaad
4 changed files with 14 additions and 23 deletions
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libguile/debug.h
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@ -138,7 +138,7 @@ SCM_API scm_t_bits scm_tc16_memoized;
SCM_API SCM scm_debug_object_p (SCM obj);
SCM_API SCM scm_local_eval (SCM exp, SCM env);
SCM_API SCM scm_reverse_lookup (SCM env, SCM data);
SCM_API SCM scm_start_stack (SCM info_id, SCM exp, SCM env);
SCM_API SCM scm_sys_start_stack (SCM info_id, SCM thunk);
SCM_API SCM scm_procedure_environment (SCM proc);
SCM_API SCM scm_procedure_source (SCM proc);
SCM_API SCM scm_procedure_name (SCM proc);