6 /* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2, or (at your option)
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this software; see the file COPYING. If not, write to
20 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
21 * Boston, MA 02111-1307 USA
23 * As a special exception, the Free Software Foundation gives permission
24 * for additional uses of the text contained in its release of GUILE.
26 * The exception is that, if you link the GUILE library with other files
27 * to produce an executable, this does not by itself cause the
28 * resulting executable to be covered by the GNU General Public License.
29 * Your use of that executable is in no way restricted on account of
30 * linking the GUILE library code into it.
32 * This exception does not however invalidate any other reasons why
33 * the executable file might be covered by the GNU General Public License.
35 * This exception applies only to the code released by the
36 * Free Software Foundation under the name GUILE. If you copy
37 * code from other Free Software Foundation releases into a copy of
38 * GUILE, as the General Public License permits, the exception does
39 * not apply to the code that you add in this way. To avoid misleading
40 * anyone as to the status of such modified files, you must delete
41 * this exception notice from them.
43 * If you write modifications of your own for GUILE, it is your choice
44 * whether to permit this exception to apply to your modifications.
45 * If you do not wish that, delete this exception notice. */
49 #include "libguile/__scm.h"
58 extern scm_t_option scm_eval_opts
[];
60 #define SCM_EVAL_STACK scm_eval_opts[0].val
61 #define SCM_N_EVAL_OPTIONS 1
63 extern long scm_eval_stack
;
65 extern scm_t_option scm_evaluator_trap_table
[];
67 extern SCM
scm_eval_options_interface (SCM setting
);
69 #define SCM_TRAPS_P scm_evaluator_trap_table[0].val
70 #define SCM_ENTER_FRAME_P scm_evaluator_trap_table[1].val
71 #define SCM_APPLY_FRAME_P scm_evaluator_trap_table[2].val
72 #define SCM_EXIT_FRAME_P scm_evaluator_trap_table[3].val
73 #define SCM_ENTER_FRAME_HDLR (SCM)(scm_evaluator_trap_table[4].val)
74 #define SCM_APPLY_FRAME_HDLR (SCM)(scm_evaluator_trap_table[5].val)
75 #define SCM_EXIT_FRAME_HDLR (SCM)(scm_evaluator_trap_table[6].val)
76 #define SCM_N_EVALUATOR_TRAPS 7
82 * Ilocs are relative pointers into local environment structures.
85 #define SCM_ILOCP(n) (SCM_ITAG8(n)==scm_tc8_iloc)
86 #define SCM_ILOC00 SCM_MAKE_ITAG8(0L, scm_tc8_iloc)
87 #define SCM_IDINC (0x00100000L)
88 #define SCM_ICDR (0x00080000L)
89 #define SCM_IFRINC (0x00000100L)
90 #define SCM_IDSTMSK (-SCM_IDINC)
91 #define SCM_IFRAME(n) ((long)((SCM_ICDR-SCM_IFRINC)>>8) \
92 & (SCM_UNPACK (n) >> 8))
93 #define SCM_IDIST(n) (SCM_UNPACK (n) >> 20)
94 #define SCM_ICDRP(n) (SCM_ICDR & SCM_UNPACK (n))
101 * For an explanation of symbols containing "EVAL", see beginning of eval.c.
103 #define SCM_EVALIM2(x) \
104 ((SCM_EQ_P ((x), SCM_EOL) \
105 ? scm_misc_error (NULL, scm_s_expression, SCM_EOL), 0 \
108 #ifdef MEMOIZE_LOCALS
109 #define SCM_EVALIM(x, env) (SCM_ILOCP (x) \
110 ? *scm_ilookup ((x), env) \
113 #define SCM_EVALIM(x, env) SCM_EVALIM2(x)
115 #ifdef DEBUG_EXTENSIONS
116 #define SCM_XEVAL(x, env) (SCM_IMP (x) \
118 : (*scm_ceval_ptr) ((x), (env)))
119 #define SCM_XEVALCAR(x, env) (SCM_IMP (SCM_CAR (x)) \
120 ? SCM_EVALIM (SCM_CAR (x), env) \
121 : (SCM_SYMBOLP (SCM_CAR (x)) \
122 ? *scm_lookupcar (x, env, 1) \
123 : (*scm_ceval_ptr) (SCM_CAR (x), env)))
125 #define SCM_XEVAL(x, env) (SCM_IMP (x) \
127 : scm_ceval ((x), (env)))
128 #define SCM_XEVALCAR(x, env) EVALCAR (x, env)
129 #endif /* DEBUG_EXTENSIONS */
133 #define SCM_EXTEND_ENV scm_acons
135 /*fixme* This should probably be removed throught the code. */
137 #define SCM_TOP_LEVEL_LOOKUP_CLOSURE (scm_current_module_lookup_closure())
140 extern const char scm_s_expression
[];
141 extern const char scm_s_test
[];
142 extern const char scm_s_body
[];
143 extern const char scm_s_bindings
[];
144 extern const char scm_s_variable
[];
145 extern const char scm_s_clauses
[];
146 extern const char scm_s_formals
[];
147 extern const char scm_s_set_x
[];
149 extern SCM scm_sym_and
;
150 extern SCM scm_sym_begin
;
151 extern SCM scm_sym_case
;
152 extern SCM scm_sym_cond
;
153 extern SCM scm_sym_define
;
154 extern SCM scm_sym_do
;
155 extern SCM scm_sym_if
;
156 extern SCM scm_sym_lambda
;
157 extern SCM scm_sym_let
;
158 extern SCM scm_sym_letstar
;
159 extern SCM scm_sym_letrec
;
160 extern SCM scm_sym_quote
;
161 extern SCM scm_sym_quasiquote
;
162 extern SCM scm_sym_unquote
;
163 extern SCM scm_sym_uq_splicing
;
165 extern SCM scm_sym_dot
;
166 extern SCM scm_sym_atapply
;
167 extern SCM scm_sym_atcall_cc
;
168 extern SCM scm_sym_at_call_with_values
;
169 extern SCM scm_sym_delay
;
170 extern SCM scm_sym_arrow
;
171 extern SCM scm_sym_else
;
172 extern SCM scm_sym_apply
;
173 extern SCM scm_sym_set_x
;
174 extern SCM scm_sym_args
;
176 extern SCM scm_f_apply
;
180 extern SCM
* scm_ilookup (SCM iloc
, SCM env
);
181 extern SCM
* scm_lookupcar (SCM vloc
, SCM genv
, int check
);
182 extern SCM
scm_unmemocar (SCM form
, SCM env
);
183 extern SCM
scm_unmemocopy (SCM form
, SCM env
);
184 extern SCM
scm_eval_car (SCM pair
, SCM env
);
185 extern SCM
scm_eval_body (SCM code
, SCM env
);
186 extern SCM
scm_eval_args (SCM i
, SCM env
, SCM proc
);
187 extern SCM
scm_deval_args (SCM l
, SCM env
, SCM proc
, SCM
*lloc
);
188 extern SCM
scm_m_quote (SCM xorig
, SCM env
);
189 extern SCM
scm_m_begin (SCM xorig
, SCM env
);
190 extern SCM
scm_m_if (SCM xorig
, SCM env
);
191 extern SCM
scm_m_set_x (SCM xorig
, SCM env
);
192 extern SCM
scm_m_vref (SCM xorig
, SCM env
);
193 extern SCM
scm_m_vset (SCM xorig
, SCM env
);
194 extern SCM
scm_m_and (SCM xorig
, SCM env
);
195 extern SCM
scm_m_or (SCM xorig
, SCM env
);
196 extern SCM
scm_m_case (SCM xorig
, SCM env
);
197 extern SCM
scm_m_cond (SCM xorig
, SCM env
);
198 extern SCM
scm_m_lambda (SCM xorig
, SCM env
);
199 extern SCM
scm_m_letstar (SCM xorig
, SCM env
);
200 extern SCM
scm_m_do (SCM xorig
, SCM env
);
201 extern SCM
scm_m_quasiquote (SCM xorig
, SCM env
);
202 extern SCM
scm_m_delay (SCM xorig
, SCM env
);
203 extern SCM
scm_m_define (SCM x
, SCM env
);
204 extern SCM
scm_m_letrec (SCM xorig
, SCM env
);
205 extern SCM
scm_m_let (SCM xorig
, SCM env
);
206 extern SCM
scm_m_apply (SCM xorig
, SCM env
);
207 extern SCM
scm_m_cont (SCM xorig
, SCM env
);
208 extern SCM
scm_m_nil_cond (SCM xorig
, SCM env
);
209 extern SCM
scm_m_nil_ify (SCM xorig
, SCM env
);
210 extern SCM
scm_m_t_ify (SCM xorig
, SCM env
);
211 extern SCM
scm_m_0_cond (SCM xorig
, SCM env
);
212 extern SCM
scm_m_0_ify (SCM xorig
, SCM env
);
213 extern SCM
scm_m_1_ify (SCM xorig
, SCM env
);
214 extern SCM
scm_m_atfop (SCM xorig
, SCM env
);
215 extern SCM
scm_m_atbind (SCM xorig
, SCM env
);
216 extern SCM
scm_m_at_call_with_values (SCM xorig
, SCM env
);
217 extern int scm_badargsp (SCM formals
, SCM args
);
218 extern SCM
scm_ceval (SCM x
, SCM env
);
219 extern SCM
scm_deval (SCM x
, SCM env
);
220 extern SCM
scm_call_0 (SCM proc
);
221 extern SCM
scm_call_1 (SCM proc
, SCM arg1
);
222 extern SCM
scm_call_2 (SCM proc
, SCM arg1
, SCM arg2
);
223 extern SCM
scm_call_3 (SCM proc
, SCM arg1
, SCM arg2
, SCM arg3
);
224 extern SCM
scm_call_4 (SCM proc
, SCM arg1
, SCM arg2
, SCM arg3
, SCM arg4
);
225 extern SCM
scm_apply_0 (SCM proc
, SCM args
);
226 extern SCM
scm_apply_1 (SCM proc
, SCM arg1
, SCM args
);
227 extern SCM
scm_apply_2 (SCM proc
, SCM arg1
, SCM arg2
, SCM args
);
228 extern SCM
scm_apply_3 (SCM proc
, SCM arg1
, SCM arg2
, SCM arg3
, SCM args
);
229 extern SCM
scm_nconc2last (SCM lst
);
230 extern SCM
scm_apply (SCM proc
, SCM arg1
, SCM args
);
231 extern SCM
scm_dapply (SCM proc
, SCM arg1
, SCM args
);
232 extern SCM
scm_m_expand_body (SCM xorig
, SCM env
);
233 extern SCM
scm_macroexp (SCM x
, SCM env
);
234 extern SCM
scm_map (SCM proc
, SCM arg1
, SCM args
);
235 extern SCM
scm_for_each (SCM proc
, SCM arg1
, SCM args
);
236 extern SCM
scm_closure (SCM code
, SCM env
);
237 extern SCM
scm_makprom (SCM code
);
238 extern SCM
scm_force (SCM x
);
239 extern SCM
scm_promise_p (SCM x
);
240 extern SCM
scm_cons_source (SCM xorig
, SCM x
, SCM y
);
241 extern SCM
scm_copy_tree (SCM obj
);
242 extern SCM
scm_i_eval_x (SCM exp
, SCM env
);
243 extern SCM
scm_i_eval (SCM exp
, SCM env
);
244 extern SCM
scm_primitive_eval (SCM exp
);
245 extern SCM
scm_primitive_eval_x (SCM exp
);
246 extern SCM
scm_eval (SCM exp
, SCM module
);
247 extern SCM
scm_eval_x (SCM exp
, SCM module
);
249 extern void scm_init_eval (void);
251 #endif /* SCM_EVAL_H */