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266 lines
8.8 KiB
C
266 lines
8.8 KiB
C
/* classes: h_files */
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#ifndef SCM_EVAL_H
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#define SCM_EVAL_H
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/* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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#include "libguile/__scm.h"
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#include "struct.h"
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/* {Options}
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*/
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extern scm_t_option scm_eval_opts[];
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#define SCM_EVAL_STACK scm_eval_opts[0].val
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#define SCM_N_EVAL_OPTIONS 1
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extern long scm_eval_stack;
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extern scm_t_option scm_evaluator_trap_table[];
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extern SCM scm_eval_options_interface (SCM setting);
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#define SCM_TRAPS_P scm_evaluator_trap_table[0].val
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#define SCM_ENTER_FRAME_P scm_evaluator_trap_table[1].val
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#define SCM_APPLY_FRAME_P scm_evaluator_trap_table[2].val
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#define SCM_EXIT_FRAME_P scm_evaluator_trap_table[3].val
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#define SCM_N_EVALUATOR_TRAPS 4
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/* {Ilocs}
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*
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* Ilocs are relative pointers into local environment structures.
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*
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*/
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#define SCM_ILOCP(n) (SCM_ITAG8(n)==scm_tc8_iloc)
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#define SCM_ILOC00 SCM_MAKE_ITAG8(0L, scm_tc8_iloc)
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#define SCM_IDINC (0x00100000L)
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#define SCM_ICDR (0x00080000L)
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#define SCM_IFRINC (0x00000100L)
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#define SCM_IDSTMSK (-SCM_IDINC)
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#define SCM_IFRAME(n) ((long)((SCM_ICDR-SCM_IFRINC)>>8) \
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& (SCM_UNPACK (n) >> 8))
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#define SCM_IDIST(n) (SCM_UNPACK (n) >> 20)
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#define SCM_ICDRP(n) (SCM_ICDR & SCM_UNPACK (n))
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/* {Evaluator}
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*
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* For an explanation of symbols containing "EVAL", see beginning of eval.c.
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*/
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#define SCM_EVALIM2(x) \
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((SCM_EQ_P ((x), SCM_EOL) \
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? scm_misc_error (NULL, scm_s_expression, SCM_EOL), 0 \
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: 0), \
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(x))
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#ifdef MEMOIZE_LOCALS
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#define SCM_EVALIM(x, env) (SCM_ILOCP (x) \
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? *scm_ilookup ((x), env) \
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: SCM_EVALIM2(x))
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#else
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#define SCM_EVALIM(x, env) SCM_EVALIM2(x)
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#endif
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#ifdef DEBUG_EXTENSIONS
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#define SCM_XEVAL(x, env) (SCM_IMP (x) \
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? SCM_EVALIM2(x) \
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: (*scm_ceval_ptr) ((x), (env)))
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#define SCM_XEVALCAR(x, env) (SCM_NCELLP (SCM_CAR (x)) \
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? (SCM_IMP (SCM_CAR (x)) \
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? SCM_EVALIM (SCM_CAR (x), env) \
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: SCM_GLOC_VAL (SCM_CAR (x))) \
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: (SCM_SYMBOLP (SCM_CAR (x)) \
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? *scm_lookupcar (x, env, 1) \
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: (*scm_ceval_ptr) (SCM_CAR (x), env)))
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#else
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#define SCM_XEVAL(x, env) (SCM_IMP (x) \
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? SCM_EVALIM2(x) \
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: scm_ceval ((x), (env)))
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#define SCM_XEVALCAR(x, env) EVALCAR (x, env)
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#endif /* DEBUG_EXTENSIONS */
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#define SCM_EXTEND_ENV scm_acons
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/*fixme* This should probably be removed throught the code. */
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#define SCM_TOP_LEVEL_LOOKUP_CLOSURE (scm_current_module_lookup_closure())
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#if SCM_DEBUG_DEPRECATED == 0
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extern SCM scm_top_level_lookup_closure_var;
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extern SCM scm_system_transformer;
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#endif
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extern const char scm_s_expression[];
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extern const char scm_s_test[];
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extern const char scm_s_body[];
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extern const char scm_s_bindings[];
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extern const char scm_s_variable[];
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extern const char scm_s_clauses[];
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extern const char scm_s_formals[];
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extern const char scm_s_set_x[];
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extern SCM scm_sym_and;
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extern SCM scm_sym_begin;
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extern SCM scm_sym_case;
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extern SCM scm_sym_cond;
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extern SCM scm_sym_define;
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extern SCM scm_sym_do;
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extern SCM scm_sym_if;
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extern SCM scm_sym_lambda;
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extern SCM scm_sym_let;
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extern SCM scm_sym_letstar;
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extern SCM scm_sym_letrec;
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extern SCM scm_sym_quote;
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extern SCM scm_sym_quasiquote;
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extern SCM scm_sym_unquote;
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extern SCM scm_sym_uq_splicing;
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extern SCM scm_sym_dot;
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extern SCM scm_sym_atapply;
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extern SCM scm_sym_atcall_cc;
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extern SCM scm_sym_at_call_with_values;
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extern SCM scm_sym_delay;
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extern SCM scm_sym_arrow;
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extern SCM scm_sym_else;
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extern SCM scm_sym_apply;
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extern SCM scm_sym_set_x;
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extern SCM scm_sym_args;
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extern SCM scm_f_apply;
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/* A resolved global variable reference in the CAR position
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* of a list is stored (in code only) as a pointer to a variable with a
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* tag of 1. This is called a "gloc".
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*/
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#define SCM_GLOC_VAR(x) (SCM_PACK(SCM_UNPACK(x)-scm_tc3_cons_gloc))
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#define SCM_GLOC_VAL(x) (SCM_VARIABLE_REF (SCM_GLOC_VAR (x)))
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#define SCM_GLOC_SET_VAL(x, y) (SCM_VARIABLE_SET (SCM_GLOC_VAR (x), y))
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#define SCM_GLOC_VAL_LOC(x) (SCM_VARIABLE_LOC (SCM_GLOC_VAR (x)))
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extern SCM * scm_ilookup (SCM iloc, SCM env);
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extern SCM * scm_lookupcar (SCM vloc, SCM genv, int check);
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extern SCM scm_unmemocar (SCM form, SCM env);
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extern SCM scm_unmemocopy (SCM form, SCM env);
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extern SCM scm_eval_car (SCM pair, SCM env);
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extern SCM scm_eval_body (SCM code, SCM env);
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extern SCM scm_eval_args (SCM i, SCM env, SCM proc);
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extern SCM scm_deval_args (SCM l, SCM env, SCM proc, SCM *lloc);
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extern SCM scm_m_quote (SCM xorig, SCM env);
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extern SCM scm_m_begin (SCM xorig, SCM env);
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extern SCM scm_m_if (SCM xorig, SCM env);
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extern SCM scm_m_set_x (SCM xorig, SCM env);
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extern SCM scm_m_vref (SCM xorig, SCM env);
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extern SCM scm_m_vset (SCM xorig, SCM env);
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extern SCM scm_m_and (SCM xorig, SCM env);
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extern SCM scm_m_or (SCM xorig, SCM env);
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extern SCM scm_m_case (SCM xorig, SCM env);
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extern SCM scm_m_cond (SCM xorig, SCM env);
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extern SCM scm_m_lambda (SCM xorig, SCM env);
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extern SCM scm_m_letstar (SCM xorig, SCM env);
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extern SCM scm_m_do (SCM xorig, SCM env);
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extern SCM scm_m_quasiquote (SCM xorig, SCM env);
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extern SCM scm_m_delay (SCM xorig, SCM env);
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extern SCM scm_m_define (SCM x, SCM env);
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extern SCM scm_m_letrec (SCM xorig, SCM env);
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extern SCM scm_m_let (SCM xorig, SCM env);
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extern SCM scm_m_apply (SCM xorig, SCM env);
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extern SCM scm_m_cont (SCM xorig, SCM env);
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extern SCM scm_m_nil_cond (SCM xorig, SCM env);
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extern SCM scm_m_nil_ify (SCM xorig, SCM env);
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extern SCM scm_m_t_ify (SCM xorig, SCM env);
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extern SCM scm_m_0_cond (SCM xorig, SCM env);
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extern SCM scm_m_0_ify (SCM xorig, SCM env);
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extern SCM scm_m_1_ify (SCM xorig, SCM env);
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extern SCM scm_m_atfop (SCM xorig, SCM env);
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extern SCM scm_m_atbind (SCM xorig, SCM env);
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extern SCM scm_m_at_call_with_values (SCM xorig, SCM env);
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extern int scm_badargsp (SCM formals, SCM args);
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extern SCM scm_ceval (SCM x, SCM env);
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extern SCM scm_deval (SCM x, SCM env);
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extern SCM scm_nconc2last (SCM lst);
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extern SCM scm_apply (SCM proc, SCM arg1, SCM args);
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extern SCM scm_dapply (SCM proc, SCM arg1, SCM args);
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extern SCM scm_m_expand_body (SCM xorig, SCM env);
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extern SCM scm_macroexp (SCM x, SCM env);
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extern SCM scm_map (SCM proc, SCM arg1, SCM args);
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extern SCM scm_for_each (SCM proc, SCM arg1, SCM args);
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extern SCM scm_closure (SCM code, SCM env);
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extern SCM scm_makprom (SCM code);
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extern SCM scm_force (SCM x);
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extern SCM scm_promise_p (SCM x);
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extern SCM scm_cons_source (SCM xorig, SCM x, SCM y);
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extern SCM scm_copy_tree (SCM obj);
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#if SCM_DEBUG_DEPRECATED == 0
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extern SCM scm_eval_3 (SCM obj, int copyp, SCM env);
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extern SCM scm_eval2 (SCM obj, SCM env_thunk);
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#endif
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extern SCM scm_i_eval_x (SCM exp, SCM env);
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extern SCM scm_i_eval (SCM exp, SCM env);
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extern SCM scm_primitive_eval (SCM exp);
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extern SCM scm_primitive_eval_x (SCM exp);
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extern SCM scm_eval (SCM exp, SCM module);
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extern SCM scm_eval_x (SCM exp, SCM module);
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extern void scm_init_eval (void);
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#endif /* SCM_EVAL_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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