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Import unbound variable reports in the VM.

Browse source 
* libguile/vm-engine.c (VM_NAME)[vm_error_unbound]: Add comment.

* libguile/vm-i-system.c (variable_ref): Attempt provide the name of X
  in FINISH_ARGS.
This commit is contained in:
Ludovic Courtès 2010-07-26 16:36:24 +02:00
parent fefd60ba4b
commit 1af772303b
2 changed files with 8 additions and 3 deletions
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9
libguile/vm-i-system.c
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@ -307,10 +307,13 @@ VM_DEFINE_INSTRUCTION (26, variable_ref, "variable-ref", 0, 1, 1)
{
SCM x = *sp;
if (!VARIABLE_BOUNDP (x))
if (SCM_UNLIKELY (!VARIABLE_BOUNDP (x)))
{
finish_args = scm_list_1 (x);
/* Was: finish_args = SCM_LIST1 (SCM_CAR (x)); */
SCM var_name;
/* Attempt to provide the variable name in the error message. */
var_name = scm_module_reverse_lookup (scm_current_module (), x);
finish_args = scm_list_1 (scm_is_true (var_name) ? var_name : x);
goto vm_error_unbound;
}
else