diff options
Diffstat (limited to 'libguile/eval.c')
-rw-r--r-- | libguile/eval.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libguile/eval.c b/libguile/eval.c index ea8a77153..48eb09e93 100644 --- a/libguile/eval.c +++ b/libguile/eval.c @@ -229,6 +229,28 @@ eval (SCM x, SCM env) return res; } + case SCM_M_WITH_FLUIDS: + { + long i, len; + SCM *fluidv, *valuesv, walk, wf, res; + len = scm_ilength (CAR (mx)); + fluidv = alloca (sizeof (SCM)*len); + for (i = 0, walk = CAR (mx); i < len; i++, walk = CDR (walk)) + fluidv[i] = eval (CAR (walk), env); + valuesv = alloca (sizeof (SCM)*len); + for (i = 0, walk = CADR (mx); i < len; i++, walk = CDR (walk)) + valuesv[i] = eval (CAR (walk), env); + + wf = scm_i_make_with_fluids (len, fluidv, valuesv); + scm_i_swap_with_fluids (wf, SCM_I_CURRENT_THREAD->dynamic_state); + scm_i_set_dynwinds (scm_cons (wf, scm_i_dynwinds ())); + res = eval (CDDR (mx), env); + scm_i_swap_with_fluids (wf, SCM_I_CURRENT_THREAD->dynamic_state); + scm_i_set_dynwinds (CDR (scm_i_dynwinds ())); + + return res; + } + case SCM_M_APPLY: /* Evaluate the procedure to be applied. */ proc = eval (CAR (mx), env); |