/* classes: h_files */ #ifndef EVALH #define EVALH /* Copyright (C) 1995,1996 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, 675 Mass Ave, Cambridge, MA 02139, 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" /* {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_SCM_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 SCM scm_i_name; /* 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)) #ifdef __STDC__ extern SCM * scm_ilookup (SCM iloc, SCM env); extern SCM * scm_lookupcar (SCM vloc, SCM genv); extern SCM scm_unmemocar (SCM form, SCM env); extern SCM scm_unmemocopy (SCM form, SCM env); extern SCM scm_eval_car (SCM pair, SCM env); extern SCM scm_m_quote (SCM xorig, SCM env); extern SCM scm_m_begin (SCM xorig, SCM env); extern SCM scm_m_if (SCM xorig, SCM env); extern SCM scm_m_set (SCM xorig, SCM env); extern SCM scm_m_vref (SCM xorig, SCM env); extern SCM scm_m_vset (SCM xorig, SCM env); extern SCM scm_m_and (SCM xorig, SCM env); extern SCM scm_m_or (SCM xorig, SCM env); extern SCM scm_m_case (SCM xorig, SCM env); extern SCM scm_m_cond (SCM xorig, SCM env); extern SCM scm_m_lambda (SCM xorig, SCM env); extern SCM scm_m_letstar (SCM xorig, SCM env); extern SCM scm_m_do (SCM xorig, SCM env); extern SCM scm_m_quasiquote (SCM xorig, SCM env); extern SCM scm_m_delay (SCM xorig, SCM env); extern SCM scm_m_define (SCM x, SCM env); extern SCM scm_m_letrec (SCM xorig, SCM env); extern SCM scm_m_let (SCM xorig, SCM env); extern SCM scm_m_apply (SCM xorig, SCM env); extern SCM scm_m_cont (SCM xorig, SCM env); extern int scm_badargsp (SCM formals, SCM args); extern SCM scm_ceval (SCM x, SCM env); extern SCM scm_deval (SCM x, SCM env); extern SCM scm_procedure_documentation (SCM proc); extern SCM scm_nconc2last (SCM lst); extern SCM scm_apply (SCM proc, SCM arg1, SCM args); extern SCM scm_dapply (SCM proc, SCM arg1, SCM args); extern SCM SCM_APPLY (SCM proc, SCM arg1, SCM args); extern SCM scm_map (SCM proc, SCM arg1, SCM args); extern SCM scm_for_each (SCM proc, SCM arg1, SCM args); extern SCM scm_closure (SCM code, SCM env); extern SCM scm_makprom (SCM code); extern SCM scm_makacro (SCM code); extern SCM scm_makmacro (SCM code); extern SCM scm_makmmacro (SCM code); extern SCM scm_force (SCM x); extern SCM scm_promise_p (SCM x); extern SCM scm_copy_tree (SCM obj); extern SCM scm_eval_3 (SCM obj, int copyp, SCM env); extern SCM scm_top_level_env (SCM thunk); extern SCM scm_eval2 (SCM obj, SCM env_thunk); extern SCM scm_eval (SCM obj); extern SCM scm_eval_x (SCM obj); extern SCM scm_macro_eval_x (SCM exp, SCM env); extern SCM scm_definedp (SCM x, SCM env); extern SCM scm_make_synt (char *name, SCM (*macroizer) (), SCM (*fcn) ()); extern void scm_init_eval (void); #else /* STDC */ extern SCM * scm_ilookup (); extern SCM * scm_lookupcar (); extern SCM scm_unmemocar (); extern SCM scm_unmemocopy (); extern SCM scm_eval_car (); extern SCM scm_m_quote (); extern SCM scm_m_begin (); extern SCM scm_m_if (); extern SCM scm_m_set (); extern SCM scm_m_vref (); extern SCM scm_m_vset (); extern SCM scm_m_and (); extern SCM scm_m_or (); extern SCM scm_m_case (); extern SCM scm_m_cond (); extern SCM scm_m_lambda (); extern SCM scm_m_letstar (); extern SCM scm_m_do (); extern SCM scm_m_quasiquote (); extern SCM scm_m_delay (); extern SCM scm_m_define (); extern SCM scm_m_letrec (); extern SCM scm_m_let (); extern SCM scm_m_apply (); extern SCM scm_m_cont (); extern int scm_badargsp (); extern SCM scm_ceval (); extern SCM scm_deval (); extern SCM scm_procedure_documentation (); extern SCM scm_nconc2last (); extern SCM scm_apply (); extern SCM scm_dapply (); extern SCM SCM_APPLY (); extern SCM scm_map (); extern SCM scm_for_each (); extern SCM scm_closure (); extern SCM scm_makprom (); extern SCM scm_makacro (); extern SCM scm_makmacro (); extern SCM scm_makmmacro (); extern SCM scm_force (); extern SCM scm_promise_p (); extern SCM scm_copy_tree (); extern SCM scm_eval_3 (); extern SCM scm_top_level_env (); extern SCM scm_eval2 (); extern SCM scm_eval (); extern SCM scm_eval_x (); extern SCM scm_macro_eval_x (); extern SCM scm_definedp (); extern SCM scm_make_synt (); extern void scm_init_eval (); #endif /* STDC */ #endif /* EVALH */