/* classes: h_files */ #ifndef EVALH #define EVALH /* Copyright (C) 1995,1996,1998 Free Software Foundation, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307 USA * * As a special exception, the Free Software Foundation gives permission * for additional uses of the text contained in its release of GUILE. * * The exception is that, if you link the GUILE library with other files * to produce an executable, this does not by itself cause the * resulting executable to be covered by the GNU General Public License. * Your use of that executable is in no way restricted on account of * linking the GUILE library code into it. * * This exception does not however invalidate any other reasons why * the executable file might be covered by the GNU General Public License. * * This exception applies only to the code released by the * Free Software Foundation under the name GUILE. If you copy * code from other Free Software Foundation releases into a copy of * GUILE, as the General Public License permits, the exception does * not apply to the code that you add in this way. To avoid misleading * anyone as to the status of such modified files, you must delete * this exception notice from them. * * If you write modifications of your own for GUILE, it is your choice * whether to permit this exception to apply to your modifications. * If you do not wish that, delete this exception notice. */ #include "libguile/__scm.h" /* {Options} */ extern scm_option scm_eval_opts[]; #define SCM_EVAL_STACK scm_eval_opts[0].val #define SCM_N_EVAL_OPTIONS 1 extern int scm_eval_stack; extern scm_option scm_evaluator_trap_table[]; extern SCM scm_eval_options_interface SCM_P ((SCM setting)); #define SCM_TRAPS_P scm_evaluator_trap_table[0].val #define SCM_ENTER_FRAME_P scm_evaluator_trap_table[1].val #define SCM_APPLY_FRAME_P scm_evaluator_trap_table[2].val #define SCM_EXIT_FRAME_P scm_evaluator_trap_table[3].val #define SCM_N_EVALUATOR_TRAPS 4 /* {Ilocs} * * Ilocs are relative pointers into local environment structures. * */ #define SCM_ILOCP(n) (SCM_ITAG8(n)==scm_tc8_iloc) #define SCM_ILOC00 SCM_MAKE_ITAG8(0L, scm_tc8_iloc) #define SCM_IDINC (0x00100000L) #define SCM_ICDR (0x00080000L) #define SCM_IFRINC (0x00000100L) #define SCM_IDSTMSK (-SCM_IDINC) #define SCM_IFRAME(n) ((int)((SCM_ICDR-SCM_IFRINC)>>8) & ((int)(n)>>8)) #define SCM_IDIST(n) (((unsigned long)(n))>>20) #define SCM_ICDRP(n) (SCM_ICDR & (n)) /* {Evaluator} * * For an explanation of symbols containing "EVAL", see beginning of eval.c. */ #ifdef DEBUG_EXTENSIONS #define XEVAL(x, env) (SCM_IMP(x) \ ? (x) \ : (*scm_ceval_ptr) ((x), (env))) #else #define XEVAL(x, env) (SCM_IMP(x)?(x):scm_ceval((x), (env))) #endif /* DEBUG_EXTENSIONS */ #define SCM_CEVAL scm_ceval #define SIDEVAL(x, env) if SCM_NIMP(x) SCM_CEVAL((x), (env)) #define SCM_EXTEND_ENV scm_acons extern SCM scm_i_dot; extern SCM scm_i_quote; extern SCM scm_i_quasiquote; extern SCM scm_i_lambda; extern SCM scm_i_let; extern SCM scm_i_arrow; extern SCM scm_i_else; extern SCM scm_i_unquote; extern SCM scm_i_uq_splicing; extern SCM scm_i_apply; extern long scm_tc16_macro; /* A resolved global variable reference in the CAR position * of a list is stored (in code only) as a pointer to a pair with a * tag of 1. This is called a "gloc". */ #define SCM_GLOC_SYM(x) (SCM_CAR((x)-1L)) #define SCM_GLOC_VAL(x) (SCM_CDR((x)-1L)) #define SCM_GLOC_VAL_LOC(x) (SCM_CDRLOC((x)-1L)) extern SCM * scm_ilookup SCM_P ((SCM iloc, SCM env)); extern SCM * scm_lookupcar SCM_P ((SCM vloc, SCM genv)); extern SCM scm_unmemocar SCM_P ((SCM form, SCM env)); extern SCM scm_unmemocopy SCM_P ((SCM form, SCM env)); extern SCM scm_eval_car SCM_P ((SCM pair, SCM env)); extern SCM scm_eval_args SCM_P ((SCM i, SCM env, SCM proc)); extern SCM scm_deval_args SCM_P ((SCM l, SCM env, SCM proc, SCM *lloc)); extern SCM scm_m_quote SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_begin SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_if SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_set SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_vref SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_vset SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_and SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_or SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_case SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_cond SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_lambda SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_letstar SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_do SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_quasiquote SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_delay SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_define SCM_P ((SCM x, SCM env)); extern SCM scm_m_letrec SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_let SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_apply SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_cont SCM_P ((SCM xorig, SCM env)); extern SCM scm_m_undefine SCM_P ((SCM x, SCM env)); extern int scm_badargsp SCM_P ((SCM formals, SCM args)); extern SCM scm_ceval SCM_P ((SCM x, SCM env)); extern SCM scm_deval SCM_P ((SCM x, SCM env)); extern SCM scm_procedure_documentation SCM_P ((SCM proc)); extern SCM scm_nconc2last SCM_P ((SCM lst)); extern SCM scm_apply SCM_P ((SCM proc, SCM arg1, SCM args)); extern SCM scm_dapply SCM_P ((SCM proc, SCM arg1, SCM args)); extern SCM SCM_APPLY SCM_P ((SCM proc, SCM arg1, SCM args)); extern SCM scm_map SCM_P ((SCM proc, SCM arg1, SCM args)); extern SCM scm_for_each SCM_P ((SCM proc, SCM arg1, SCM args)); extern SCM scm_closure SCM_P ((SCM code, SCM env)); extern SCM scm_makprom SCM_P ((SCM code)); extern SCM scm_makacro SCM_P ((SCM code)); extern SCM scm_makmacro SCM_P ((SCM code)); extern SCM scm_makmmacro SCM_P ((SCM code)); extern SCM scm_macro_p SCM_P ((SCM obj)); extern SCM scm_macro_type SCM_P ((SCM m)); extern SCM scm_macro_name SCM_P ((SCM m)); extern SCM scm_macro_transformer SCM_P ((SCM m)); extern SCM scm_force SCM_P ((SCM x)); extern SCM scm_promise_p SCM_P ((SCM x)); extern SCM scm_copy_tree SCM_P ((SCM obj)); extern SCM scm_eval_3 SCM_P ((SCM obj, int copyp, SCM env)); extern SCM scm_top_level_env SCM_P ((SCM thunk)); extern SCM scm_eval2 SCM_P ((SCM obj, SCM env_thunk)); extern SCM scm_eval SCM_P ((SCM obj)); extern SCM scm_eval_x SCM_P ((SCM obj)); extern SCM scm_macro_eval_x SCM_P ((SCM exp, SCM env)); extern SCM scm_definedp SCM_P ((SCM sym)); extern SCM scm_make_synt SCM_P ((char *name, SCM (*macroizer) (SCM), SCM (*fcn) ())); extern void scm_init_eval SCM_P ((void)); #endif /* EVALH */