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prompt handlers are always inline

* libguile/control.h (SCM_F_PROMPT_INLINE, SCM_PROMPT_INLINE_P): Remove;
  prompts always have "inline" handlers now.
* libguile/control.c (scm_c_make_prompt): Remove inline_handler_p arg.

* libguile/vm-i-system.c (prompt):
* module/language/assembly/decompile-bytecode.scm (decode-load-program):
* module/language/assembly/compile-bytecode.scm (write-bytecode):
 Adapt to prompt changes.

* module/language/glil.scm (make-glil-prompt, glil-prompt-inline?):
  Remove inline? flag.
  (parse-glil, unparse-glil):
* module/language/glil/compile-assembly.scm (glil->assembly): Adapt to
  <glil-prompt> change.

* module/language/tree-il/compile-glil.scm (flatten): Require the
  handler of a <prompt> to be a lambda-case.

* module/language/tree-il/primitives.scm (*primitive-expand-table*):
  Ensure that the handler of a <prompt> is a lambda-case.

* module/language/tree-il/inline.scm (inline!): Simplify a degenerate
  case: (lambda args (apply (lambda ...) args)) => (lambda ...).
This commit is contained in:
Andy Wingo 2010-02-19 15:30:34 +01:00
parent f5b1f76af4
commit ea6b18e82f
10 changed files with 78 additions and 99 deletions

View file

@ -1450,13 +1450,12 @@ VM_DEFINE_INSTRUCTION (82, make_symbol, "make-symbol", 0, 1, 1)
NEXT;
}
VM_DEFINE_INSTRUCTION (83, prompt, "prompt", 5, 2, 0)
VM_DEFINE_INSTRUCTION (83, prompt, "prompt", 4, 2, 0)
{
scm_t_int32 offset;
scm_t_uint8 inline_handler_p, escape_only_p;
scm_t_uint8 escape_only_p;
SCM k, handler, prompt;
inline_handler_p = FETCH ();
escape_only_p = FETCH ();
FETCH_OFFSET (offset);
POP (handler);
@ -1466,14 +1465,13 @@ VM_DEFINE_INSTRUCTION (83, prompt, "prompt", 5, 2, 0)
/* Push the prompt onto the dynamic stack. The setjmp itself has to be local
to this procedure. */
/* FIXME: do more error checking */
prompt = scm_c_make_prompt (vm, k, handler, inline_handler_p, escape_only_p);
prompt = scm_c_make_prompt (vm, k, handler, escape_only_p);
scm_i_set_dynwinds (scm_cons (prompt, scm_i_dynwinds ()));
if (SCM_PROMPT_SETJMP (prompt))
{
/* The prompt exited nonlocally. Cache the regs back from the vp, and go
to the handler or post-handler label. (The meaning of the label differs
depending on whether the prompt's handler is rendered inline or not.)
*/
to the handler.
*/
CACHE_REGISTER (); /* Really we only need SP. FP and IP should be
unmodified. */
ip += offset;