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author | Andy Wingo <wingo@pobox.com> | 2010-02-18 17:10:29 +0100 |
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committer | Andy Wingo <wingo@pobox.com> | 2010-02-18 22:15:43 +0100 |
commit | bb0229b51d53c10164f58cebbeeed85cd9dfe0b8 (patch) | |
tree | 4c63470d420dd669612828357481bfc518ddab47 /module | |
parent | 27bd1deced05d096915d47c6ea46d3b22d692e19 (diff) | |
download | guile-bb0229b51d53c10164f58cebbeeed85cd9dfe0b8.tar.gz |
add with-fluids objects and primitive syntax
* libguile/tags.h (scm_tc7_with_fluids): Allocate a tc7 for
"with-fluids" objects, which will only live on the dynamic stack (wind
list), not in normal scheme-land.
* libguile/fluids.h (SCM_WITH_FLUIDS_P, SCM_WITH_FLUIDS_LEN)
(SCM_WITH_FLUIDS_NTH_FLUID, SCM_WITH_FLUIDS_NTH_VAL)
(SCM_WITH_FLUIDS_SET_NTH_VAL): Add some accessors.
* libguile/fluids.c (scm_i_make_with_fluids, scm_i_swap_with_fluids):
New internal functions.
(scm_c_with_fluids, scm_c_with_fluid): Push with-fluids objects on the
dynwind list, not winders.
* libguile/dynwind.c (scm_i_dowinds): Add cases for winding and
unwinding with-fluids objects.
* libguile/memoize.h (scm_sym_with_fluids, SCM_M_BEGIN): New public
data.
* libguile/memoize.c (scm_m_with_fluids): Define with-fluids as a
primitive syntax.
(unmemoize): Add with-fluids case.
* libguile/eval.c (eval):
* module/ice-9/eval.scm (primitive-eval): Add with-fluids cases.
* test-suite/tests/fluids.test
("fluids not modified if nonfluid passed to with-fluids"): Enable a
now-passing test.
Diffstat (limited to 'module')
-rw-r--r-- | module/ice-9/eval.scm | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/module/ice-9/eval.scm b/module/ice-9/eval.scm index 454fc4f69..0e02cbc75 100644 --- a/module/ice-9/eval.scm +++ b/module/ice-9/eval.scm @@ -304,6 +304,11 @@ (lambda () (eval exp env)) (eval out env))) + (('with-fluids (fluids vals . exp)) + (let* ((fluids (map (lambda (x) (eval x env)) fluids)) + (vals (map (lambda (x) (eval x env)) vals))) + (with-fluids* fluids vals (lambda () (eval exp env))))) + (('call/cc proc) (call/cc (eval proc env))) |