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* modules.c (scm_env_top_level, scm_lookup_closure_module,

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module_variable, scm_module_lookup_closure,
scm_module_transformer, scm_sym2var, scm_module_reverse_lookup,
scm_system_module_env_p):  Don't compare SCM values with C
operators == or !=.  Avoid SCM_IMP predicates.  Prefer !SCM_FALSEP
over SCM_NFALSEP.
This commit is contained in:
Dirk Herrmann 2002-11-16 16:56:52 +00:00
parent 9089f73c52
commit c88b1456e0
2 changed files with 25 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

9
libguile/ChangeLog
View file

@ -1,3 +1,12 @@
2002-11-16 Dirk Herrmann <D.Herrmann@tu-bs.de>
* modules.c (scm_env_top_level, scm_lookup_closure_module,
module_variable, scm_module_lookup_closure,
scm_module_transformer, scm_sym2var, scm_module_reverse_lookup,
scm_system_module_env_p): Don't compare SCM values with C
operators == or !=. Avoid SCM_IMP predicates. Prefer !SCM_FALSEP
over SCM_NFALSEP.
2002-11-16 Dirk Herrmann <D.Herrmann@tu-bs.de>
* eval.h (SCM_MAKE_ILOC): New macro.

32
libguile/modules.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 1998,2000,2001 Free Software Foundation, Inc.
/* Copyright (C) 1998,2000,2001,2002 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -227,11 +227,11 @@ scm_top_level_env (SCM thunk)
SCM
scm_env_top_level (SCM env)
{
while (SCM_NIMP (env))
while (SCM_CONSP (env))
{
if (!SCM_CONSP (SCM_CAR (env))
&& SCM_NFALSEP (scm_procedure_p (SCM_CAR (env))))
return SCM_CAR (env);
SCM car_env = SCM_CAR (env);
if (!SCM_CONSP (car_env) && !SCM_FALSEP (scm_procedure_p (car_env)))
return car_env;
env = SCM_CDR (env);
}
return SCM_BOOL_F;
@ -260,7 +260,7 @@ scm_lookup_closure_module (SCM proc)
else
{
SCM mod = scm_procedure_property (proc, sym_module);
if (mod == SCM_BOOL_F)
if (SCM_FALSEP (mod))
mod = the_root_module ();
return mod;
}
@ -288,7 +288,7 @@ static SCM
module_variable (SCM module, SCM sym)
{
#define SCM_BOUND_THING_P(b) \
(SCM_NFALSEP(b) && \
(!SCM_FALSEP(b) && \
(!SCM_VARIABLEP(b) || !SCM_UNBNDP (SCM_VARIABLE_REF (b))))
/* 1. Check module obarray */
@ -297,7 +297,7 @@ module_variable (SCM module, SCM sym)
return b;
{
SCM binder = SCM_MODULE_BINDER (module);
if (SCM_NFALSEP (binder))
if (!SCM_FALSEP (binder))
/* 2. Custom binder */
{
b = scm_call_3 (binder, module, sym, SCM_BOOL_F);
@ -332,7 +332,7 @@ SCM
scm_eval_closure_lookup (SCM eclo, SCM sym, SCM definep)
{
SCM module = SCM_PACK (SCM_SMOB_DATA (eclo));
if (SCM_NFALSEP (definep))
if (!SCM_FALSEP (definep))
{
if (SCM_EVAL_CLOSURE_INTERFACE_P (eclo))
return SCM_BOOL_F;
@ -367,7 +367,7 @@ SCM_DEFINE (scm_standard_interface_eval_closure,
SCM
scm_module_lookup_closure (SCM module)
{
if (module == SCM_BOOL_F)
if (SCM_FALSEP (module))
return SCM_BOOL_F;
else
return SCM_MODULE_EVAL_CLOSURE (module);
@ -385,7 +385,7 @@ scm_current_module_lookup_closure ()
SCM
scm_module_transformer (SCM module)
{
if (module == SCM_BOOL_F)
if (SCM_FALSEP (module))
return SCM_BOOL_F;
else
return SCM_MODULE_TRANSFORMER (module);
@ -442,7 +442,7 @@ scm_sym2var (SCM sym, SCM proc, SCM definep)
handle = scm_hashq_create_handle_x (scm_pre_modules_obarray,
sym, SCM_BOOL_F);
var = SCM_CDR (handle);
if (var == SCM_BOOL_F)
if (SCM_FALSEP (var))
{
var = scm_make_variable (SCM_UNDEFINED);
SCM_SETCDR (handle, var);
@ -450,7 +450,7 @@ scm_sym2var (SCM sym, SCM proc, SCM definep)
}
}
if (var != SCM_BOOL_F && !SCM_VARIABLEP (var))
if (!SCM_FALSEP (var) && !SCM_VARIABLEP (var))
SCM_MISC_ERROR ("~S is not bound to a variable", scm_list_1 (sym));
return var;
@ -534,7 +534,7 @@ scm_module_reverse_lookup (SCM module, SCM variable)
SCM obarray;
long i, n;
if (module == SCM_BOOL_F)
if (SCM_FALSEP (module))
obarray = scm_pre_modules_obarray;
else
{
@ -565,7 +565,7 @@ scm_module_reverse_lookup (SCM module, SCM variable)
while (SCM_CONSP (uses))
{
SCM sym = scm_module_reverse_lookup (SCM_CAR (uses), variable);
if (sym != SCM_BOOL_F)
if (!SCM_FALSEP (sym))
return sym;
uses = SCM_CDR (uses);
}
@ -594,7 +594,7 @@ scm_system_module_env_p (SCM env)
SCM proc = scm_env_top_level (env);
if (SCM_FALSEP (proc))
return SCM_BOOL_T;
return ((SCM_NFALSEP (scm_procedure_property (proc,
return ((!SCM_FALSEP (scm_procedure_property (proc,
scm_sym_system_module)))
? SCM_BOOL_T
: SCM_BOOL_F);