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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
22a52da1 DH |
3 | #ifndef SCM_EVAL_H |
4 | #define SCM_EVAL_H | |
5 | /* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc. | |
0f2d19dd JB |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
19 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
20 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
21 | * |
22 | * As a special exception, the Free Software Foundation gives permission | |
23 | * for additional uses of the text contained in its release of GUILE. | |
24 | * | |
25 | * The exception is that, if you link the GUILE library with other files | |
26 | * to produce an executable, this does not by itself cause the | |
27 | * resulting executable to be covered by the GNU General Public License. | |
28 | * Your use of that executable is in no way restricted on account of | |
29 | * linking the GUILE library code into it. | |
30 | * | |
31 | * This exception does not however invalidate any other reasons why | |
32 | * the executable file might be covered by the GNU General Public License. | |
33 | * | |
34 | * This exception applies only to the code released by the | |
35 | * Free Software Foundation under the name GUILE. If you copy | |
36 | * code from other Free Software Foundation releases into a copy of | |
37 | * GUILE, as the General Public License permits, the exception does | |
38 | * not apply to the code that you add in this way. To avoid misleading | |
39 | * anyone as to the status of such modified files, you must delete | |
40 | * this exception notice from them. | |
41 | * | |
42 | * If you write modifications of your own for GUILE, it is your choice | |
43 | * whether to permit this exception to apply to your modifications. | |
82892bed | 44 | * If you do not wish that, delete this exception notice. */ |
0f2d19dd JB |
45 | \f |
46 | ||
b4309c3c | 47 | #include "libguile/__scm.h" |
0f2d19dd | 48 | |
37607b5a MD |
49 | #include "struct.h" |
50 | ||
0f2d19dd JB |
51 | \f |
52 | ||
33b97402 MD |
53 | /* {Options} |
54 | */ | |
55 | ||
56 | extern scm_option scm_eval_opts[]; | |
57 | ||
58 | #define SCM_EVAL_STACK scm_eval_opts[0].val | |
59 | #define SCM_N_EVAL_OPTIONS 1 | |
60 | ||
2c2b0670 | 61 | extern int scm_eval_stack; |
a74145b8 | 62 | |
33b97402 MD |
63 | extern scm_option scm_evaluator_trap_table[]; |
64 | ||
7866a09b | 65 | extern SCM scm_eval_options_interface (SCM setting); |
38b9c0c3 | 66 | |
066dacf8 MD |
67 | #define SCM_TRAPS_P scm_evaluator_trap_table[0].val |
68 | #define SCM_ENTER_FRAME_P scm_evaluator_trap_table[1].val | |
69 | #define SCM_APPLY_FRAME_P scm_evaluator_trap_table[2].val | |
70 | #define SCM_EXIT_FRAME_P scm_evaluator_trap_table[3].val | |
71 | #define SCM_N_EVALUATOR_TRAPS 4 | |
33b97402 MD |
72 | |
73 | \f | |
74 | ||
0f2d19dd JB |
75 | /* {Ilocs} |
76 | * | |
77 | * Ilocs are relative pointers into local environment structures. | |
78 | * | |
79 | */ | |
80 | #define SCM_ILOCP(n) (SCM_ITAG8(n)==scm_tc8_iloc) | |
81 | #define SCM_ILOC00 SCM_MAKE_ITAG8(0L, scm_tc8_iloc) | |
82 | #define SCM_IDINC (0x00100000L) | |
83 | #define SCM_ICDR (0x00080000L) | |
84 | #define SCM_IFRINC (0x00000100L) | |
85 | #define SCM_IDSTMSK (-SCM_IDINC) | |
b0c54567 DH |
86 | #define SCM_IFRAME(n) ((int)((SCM_ICDR-SCM_IFRINC)>>8) \ |
87 | & (SCM_UNPACK (n) >> 8)) | |
88 | #define SCM_IDIST(n) (SCM_UNPACK (n) >> 20) | |
89 | #define SCM_ICDRP(n) (SCM_ICDR & SCM_UNPACK (n)) | |
0f2d19dd JB |
90 | |
91 | \f | |
92 | ||
93 | ||
8d1e7f8c MD |
94 | /* {Evaluator} |
95 | * | |
96 | * For an explanation of symbols containing "EVAL", see beginning of eval.c. | |
97 | */ | |
5280aaca | 98 | #define SCM_EVALIM2(x) (((x) == SCM_EOL) \ |
db4b4ca6 | 99 | ? scm_misc_error (NULL, scm_s_expression, SCM_EOL), 0 \ |
5280aaca | 100 | : (x)) |
2a758f6f | 101 | #ifdef MEMOIZE_LOCALS |
5280aaca MV |
102 | #define SCM_EVALIM(x, env) (SCM_ILOCP (x) \ |
103 | ? *scm_ilookup ((x), env) \ | |
104 | : SCM_EVALIM2(x)) | |
2a758f6f | 105 | #else |
5280aaca | 106 | #define SCM_EVALIM(x, env) SCM_EVALIM2(x) |
2a758f6f | 107 | #endif |
0f2d19dd | 108 | #ifdef DEBUG_EXTENSIONS |
e1e11745 | 109 | #define SCM_XEVAL(x, env) (SCM_IMP (x) \ |
5280aaca | 110 | ? SCM_EVALIM2(x) \ |
e1e11745 MD |
111 | : (*scm_ceval_ptr) ((x), (env))) |
112 | #define SCM_XEVALCAR(x, env) (SCM_NCELLP (SCM_CAR (x)) \ | |
113 | ? (SCM_IMP (SCM_CAR (x)) \ | |
114 | ? SCM_EVALIM (SCM_CAR (x), env) \ | |
115 | : SCM_GLOC_VAL (SCM_CAR (x))) \ | |
116 | : (SCM_SYMBOLP (SCM_CAR (x)) \ | |
117 | ? *scm_lookupcar (x, env, 1) \ | |
118 | : (*scm_ceval_ptr) (SCM_CAR (x), env))) | |
0f2d19dd | 119 | #else |
5280aaca MV |
120 | #define SCM_XEVAL(x, env) (SCM_IMP (x) \ |
121 | ? SCM_EVALIM2(x) \ | |
122 | : scm_ceval ((x), (env))) | |
e1e11745 | 123 | #define SCM_XEVALCAR(x, env) EVALCAR (x, env) |
0f2d19dd JB |
124 | #endif /* DEBUG_EXTENSIONS */ |
125 | ||
0f2d19dd JB |
126 | \f |
127 | ||
e2806c10 | 128 | #define SCM_EXTEND_ENV scm_acons |
0f2d19dd | 129 | |
37607b5a | 130 | /*fixme* This should probably be removed throught the code. */ |
a0ea2bf0 | 131 | |
86d31dfe | 132 | #define SCM_TOP_LEVEL_LOOKUP_CLOSURE (scm_current_module_lookup_closure()) |
37607b5a MD |
133 | |
134 | #if SCM_DEBUG_DEPRECATED == 0 | |
a0ea2bf0 | 135 | |
a0ea2bf0 | 136 | extern SCM scm_top_level_lookup_closure_var; |
bcdab802 | 137 | extern SCM scm_system_transformer; |
37607b5a MD |
138 | #endif |
139 | ||
a0ea2bf0 | 140 | |
0f2d19dd | 141 | \f |
3eeba8d4 JB |
142 | extern const char scm_s_expression[]; |
143 | extern const char scm_s_test[]; | |
144 | extern const char scm_s_body[]; | |
145 | extern const char scm_s_bindings[]; | |
146 | extern const char scm_s_variable[]; | |
147 | extern const char scm_s_clauses[]; | |
148 | extern const char scm_s_formals[]; | |
79dc2f37 | 149 | extern const char scm_s_set_x[]; |
2a758f6f | 150 | |
2f0d1375 MD |
151 | extern SCM scm_sym_and; |
152 | extern SCM scm_sym_begin; | |
153 | extern SCM scm_sym_case; | |
154 | extern SCM scm_sym_cond; | |
155 | extern SCM scm_sym_define; | |
156 | extern SCM scm_sym_do; | |
157 | extern SCM scm_sym_if; | |
158 | extern SCM scm_sym_lambda; | |
159 | extern SCM scm_sym_let; | |
160 | extern SCM scm_sym_letstar; | |
161 | extern SCM scm_sym_letrec; | |
162 | extern SCM scm_sym_quote; | |
163 | extern SCM scm_sym_quasiquote; | |
164 | extern SCM scm_sym_unquote; | |
165 | extern SCM scm_sym_uq_splicing; | |
166 | ||
167 | extern SCM scm_sym_dot; | |
168 | extern SCM scm_sym_atapply; | |
169 | extern SCM scm_sym_atcall_cc; | |
baeda600 | 170 | extern SCM scm_sym_at_call_with_values; |
6b10ed8b | 171 | extern SCM scm_sym_delay; |
2f0d1375 MD |
172 | extern SCM scm_sym_arrow; |
173 | extern SCM scm_sym_else; | |
174 | extern SCM scm_sym_apply; | |
79dc2f37 | 175 | extern SCM scm_sym_set_x; |
df061ffc | 176 | extern SCM scm_sym_args; |
0f2d19dd | 177 | |
81123e6d MD |
178 | extern SCM scm_f_apply; |
179 | ||
0f2d19dd | 180 | /* A resolved global variable reference in the CAR position |
86d31dfe | 181 | * of a list is stored (in code only) as a pointer to a variable with a |
0f2d19dd JB |
182 | * tag of 1. This is called a "gloc". |
183 | */ | |
184 | ||
86d31dfe MV |
185 | #define SCM_GLOC_VAR(x) (SCM_PACK(SCM_UNPACK(x)-scm_tc3_cons_gloc)) |
186 | #define SCM_GLOC_VAL(x) (SCM_VARIABLE_REF (SCM_GLOC_VAR (x))) | |
187 | #define SCM_GLOC_SET_VAL(x, y) (SCM_VARIABLE_SET (SCM_GLOC_VAR (x), y)) | |
188 | #define SCM_GLOC_VAL_LOC(x) (SCM_VARIABLE_LOC (SCM_GLOC_VAR (x))) | |
0f2d19dd JB |
189 | |
190 | \f | |
1cc91f1b | 191 | |
7866a09b GB |
192 | extern SCM * scm_ilookup (SCM iloc, SCM env); |
193 | extern SCM * scm_lookupcar (SCM vloc, SCM genv, int check); | |
194 | extern SCM scm_unmemocar (SCM form, SCM env); | |
195 | extern SCM scm_unmemocopy (SCM form, SCM env); | |
196 | extern SCM scm_eval_car (SCM pair, SCM env); | |
9de33deb | 197 | extern SCM scm_eval_body (SCM code, SCM env); |
7866a09b GB |
198 | extern SCM scm_eval_args (SCM i, SCM env, SCM proc); |
199 | extern SCM scm_deval_args (SCM l, SCM env, SCM proc, SCM *lloc); | |
200 | extern SCM scm_m_quote (SCM xorig, SCM env); | |
201 | extern SCM scm_m_begin (SCM xorig, SCM env); | |
202 | extern SCM scm_m_if (SCM xorig, SCM env); | |
203 | extern SCM scm_m_set_x (SCM xorig, SCM env); | |
204 | extern SCM scm_m_vref (SCM xorig, SCM env); | |
205 | extern SCM scm_m_vset (SCM xorig, SCM env); | |
206 | extern SCM scm_m_and (SCM xorig, SCM env); | |
207 | extern SCM scm_m_or (SCM xorig, SCM env); | |
208 | extern SCM scm_m_case (SCM xorig, SCM env); | |
209 | extern SCM scm_m_cond (SCM xorig, SCM env); | |
210 | extern SCM scm_m_lambda (SCM xorig, SCM env); | |
211 | extern SCM scm_m_letstar (SCM xorig, SCM env); | |
212 | extern SCM scm_m_do (SCM xorig, SCM env); | |
213 | extern SCM scm_m_quasiquote (SCM xorig, SCM env); | |
214 | extern SCM scm_m_delay (SCM xorig, SCM env); | |
215 | extern SCM scm_m_define (SCM x, SCM env); | |
216 | extern SCM scm_m_letrec (SCM xorig, SCM env); | |
217 | extern SCM scm_m_let (SCM xorig, SCM env); | |
218 | extern SCM scm_m_apply (SCM xorig, SCM env); | |
219 | extern SCM scm_m_cont (SCM xorig, SCM env); | |
294b1b2e MD |
220 | extern SCM scm_m_nil_cond (SCM xorig, SCM env); |
221 | extern SCM scm_m_nil_ify (SCM xorig, SCM env); | |
222 | extern SCM scm_m_t_ify (SCM xorig, SCM env); | |
223 | extern SCM scm_m_0_cond (SCM xorig, SCM env); | |
224 | extern SCM scm_m_0_ify (SCM xorig, SCM env); | |
225 | extern SCM scm_m_1_ify (SCM xorig, SCM env); | |
226 | extern SCM scm_m_atfop (SCM xorig, SCM env); | |
227 | extern SCM scm_m_atbind (SCM xorig, SCM env); | |
baeda600 | 228 | extern SCM scm_m_at_call_with_values (SCM xorig, SCM env); |
7866a09b GB |
229 | extern int scm_badargsp (SCM formals, SCM args); |
230 | extern SCM scm_ceval (SCM x, SCM env); | |
231 | extern SCM scm_deval (SCM x, SCM env); | |
232 | extern SCM scm_nconc2last (SCM lst); | |
233 | extern SCM scm_apply (SCM proc, SCM arg1, SCM args); | |
234 | extern SCM scm_dapply (SCM proc, SCM arg1, SCM args); | |
235 | extern SCM scm_m_expand_body (SCM xorig, SCM env); | |
236 | extern SCM scm_macroexp (SCM x, SCM env); | |
237 | extern SCM scm_map (SCM proc, SCM arg1, SCM args); | |
238 | extern SCM scm_for_each (SCM proc, SCM arg1, SCM args); | |
239 | extern SCM scm_closure (SCM code, SCM env); | |
240 | extern SCM scm_makprom (SCM code); | |
241 | extern SCM scm_force (SCM x); | |
242 | extern SCM scm_promise_p (SCM x); | |
de3ca191 | 243 | extern SCM scm_cons_source (SCM xorig, SCM x, SCM y); |
7866a09b | 244 | extern SCM scm_copy_tree (SCM obj); |
37607b5a | 245 | #if SCM_DEBUG_DEPRECATED == 0 |
7866a09b GB |
246 | extern SCM scm_eval_3 (SCM obj, int copyp, SCM env); |
247 | extern SCM scm_eval2 (SCM obj, SCM env_thunk); | |
37607b5a | 248 | #endif |
083629be MV |
249 | extern SCM scm_i_eval_x (SCM exp, SCM env); |
250 | extern SCM scm_i_eval (SCM exp, SCM env); | |
251 | extern SCM scm_primitive_eval (SCM exp); | |
252 | extern SCM scm_primitive_eval_x (SCM exp); | |
253 | extern SCM scm_eval (SCM exp, SCM module); | |
254 | extern SCM scm_eval_x (SCM exp, SCM module); | |
255 | ||
7866a09b | 256 | extern void scm_init_eval (void); |
0f2d19dd | 257 | |
22a52da1 | 258 | #endif /* SCM_EVAL_H */ |
89e00824 ML |
259 | |
260 | /* | |
261 | Local Variables: | |
262 | c-file-style: "gnu" | |
263 | End: | |
264 | */ |