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Let assv/assoc shortcircuit to assq where feasible

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* libguile/alist.c (scm_sloppy_assv, scm_sloppy_assoc):
  (scm_assv, scm_assoc): Shortcircuit to scm_assq where feasible.
This commit is contained in:
David Kastrup 2016-02-11 12:31:48 +01:00 • committed by Andy Wingo
parent 8ad67667f3
commit 469970d4b3
1 changed files with 21 additions and 0 deletions
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21
libguile/alist.c
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@ -28,6 +28,7 @@
#include "libguile/validate.h"
#include "libguile/pairs.h"
#include "libguile/numbers.h"
#include "libguile/alist.h"
@ -70,6 +71,11 @@ SCM_DEFINE (scm_sloppy_assv, "sloppy-assv", 2, 0, 0,
"Recommended only for use in Guile internals.")
#define FUNC_NAME s_scm_sloppy_assv
{
/* In Guile, `assv' is the same as `assq' for keys of all types except
numbers. */
if (!SCM_NUMP (key))
return scm_sloppy_assq (key, alist);
for (; scm_is_pair (alist); alist = SCM_CDR (alist))
{
SCM tmp = SCM_CAR (alist);
@ -88,6 +94,10 @@ SCM_DEFINE (scm_sloppy_assoc, "sloppy-assoc", 2, 0, 0,
"Recommended only for use in Guile internals.")
#define FUNC_NAME s_scm_sloppy_assoc
{
/* Immediate values can be checked using `eq?'. */
if (SCM_IMP (key))
return scm_sloppy_assq (key, alist);
for (; scm_is_pair (alist); alist = SCM_CDR (alist))
{
SCM tmp = SCM_CAR (alist);
@ -137,6 +147,12 @@ SCM_DEFINE (scm_assv, "assv", 2, 0, 0,
#define FUNC_NAME s_scm_assv
{
SCM ls = alist;
/* In Guile, `assv' is the same as `assq' for keys of all types except
numbers. */
if (!SCM_NUMP (key))
return scm_assq (key, alist);
for(; scm_is_pair (ls); ls = SCM_CDR (ls))
{
SCM tmp = SCM_CAR (ls);
@ -158,6 +174,11 @@ SCM_DEFINE (scm_assoc, "assoc", 2, 0, 0,
#define FUNC_NAME s_scm_assoc
{
SCM ls = alist;
/* Immediate values can be checked using `eq?'. */
if (SCM_IMP (key))
return scm_assq (key, alist);
for(; scm_is_pair (ls); ls = SCM_CDR (ls))
{
SCM tmp = SCM_CAR (ls);