diff options
Diffstat (limited to 'libguile/eval.c')
-rw-r--r-- | libguile/eval.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/libguile/eval.c b/libguile/eval.c index 59db42976..3c9625117 100644 --- a/libguile/eval.c +++ b/libguile/eval.c @@ -41,7 +41,6 @@ #include "libguile/eq.h" #include "libguile/feature.h" #include "libguile/fluids.h" -#include "libguile/futures.h" #include "libguile/goops.h" #include "libguile/hash.h" #include "libguile/hashtab.h" @@ -409,7 +408,6 @@ static const char *const isymnames[] = "#@slot-ref", "#@slot-set!", "#@delay", - "#@future", "#@call-with-values", "#@else", "#@arrow", @@ -784,9 +782,6 @@ static SCM scm_m_do (SCM xorig, SCM env); static SCM scm_m_quasiquote (SCM xorig, SCM env); static SCM scm_m_delay (SCM xorig, SCM env); static SCM scm_m_generalized_set_x (SCM xorig, SCM env); -#if 0 /* Futures are disabled, see "futures.h". */ -static SCM scm_m_future (SCM xorig, SCM env); -#endif static SCM scm_m_define (SCM x, SCM env); static SCM scm_m_letrec (SCM xorig, SCM env); static SCM scm_m_let (SCM xorig, SCM env); @@ -2196,36 +2191,6 @@ scm_m_eval_when (SCM expr, SCM env SCM_UNUSED) return scm_list_1 (SCM_IM_BEGIN); } -#if 0 - -/* See futures.h for a comment why futures are not enabled. - */ - -SCM_SYNTAX (s_future, "future", scm_i_makbimacro, scm_m_future); -SCM_GLOBAL_SYMBOL (scm_sym_future, s_future); - -/* Like promises, futures are implemented as closures with an empty - * parameter list. Thus, (future <expression>) is transformed into - * (#@future '() <expression>), where the empty list represents the - * empty parameter list. This representation allows for easy creation - * of the closure during evaluation. */ -static SCM -scm_m_future (SCM expr, SCM env) -{ - const SCM new_expr = memoize_as_thunk_prototype (expr, env); - SCM_SETCAR (new_expr, SCM_IM_FUTURE); - return new_expr; -} - -static SCM -unmemoize_future (const SCM expr, const SCM env) -{ - const SCM thunk_expr = SCM_CADDR (expr); - return scm_list_2 (scm_sym_future, unmemoize_expression (thunk_expr, env)); -} - -#endif /* futures disabled. */ - SCM_SYNTAX (s_gset_x, "set!", scm_i_makbimacro, scm_m_generalized_set_x); SCM_SYMBOL (scm_sym_setter, "setter"); @@ -2494,13 +2459,6 @@ unmemoize_builtin_macro (const SCM expr, const SCM env) case (ISYMNUM (SCM_IM_CALL_WITH_VALUES)): return unmemoize_at_call_with_values (expr, env); -#if 0 - /* See futures.h for a comment why futures are not enabled. - */ - case (ISYMNUM (SCM_IM_FUTURE)): - return unmemoize_future (expr, env); -#endif - case (ISYMNUM (SCM_IM_SLOT_REF)): return unmemoize_atslot_ref (expr, env); |