guile/libguile/eval.h

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/* classes: h_files */
#ifndef SCM_EVAL_H
#define SCM_EVAL_H
/* Copyright (C) 1995,1996,1998,1999,2000,2001 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
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* 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.
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* If you do not wish that, delete this exception notice. */
#include "libguile/__scm.h"
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#include "struct.h"
/* {Options}
*/
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extern scm_t_option scm_eval_opts[];
#define SCM_EVAL_STACK scm_eval_opts[0].val
#define SCM_N_EVAL_OPTIONS 1
extern long scm_eval_stack;
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extern scm_t_option scm_evaluator_trap_table[];
extern SCM scm_eval_options_interface (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_ENTER_FRAME_HDLR (SCM)(scm_evaluator_trap_table[4].val)
#define SCM_APPLY_FRAME_HDLR (SCM)(scm_evaluator_trap_table[5].val)
#define SCM_EXIT_FRAME_HDLR (SCM)(scm_evaluator_trap_table[6].val)
#define SCM_N_EVALUATOR_TRAPS 7
/* {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) ((long)((SCM_ICDR-SCM_IFRINC)>>8) \
& (SCM_UNPACK (n) >> 8))
#define SCM_IDIST(n) (SCM_UNPACK (n) >> 20)
#define SCM_ICDRP(n) (SCM_ICDR & SCM_UNPACK (n))
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/* {Evaluator}
*
* For an explanation of symbols containing "EVAL", see beginning of eval.c.
*/
#define SCM_EVALIM2(x) \
((SCM_EQ_P ((x), SCM_EOL) \
? scm_misc_error (NULL, scm_s_expression, SCM_EOL), 0 \
: 0), \
(x))
#ifdef MEMOIZE_LOCALS
#define SCM_EVALIM(x, env) (SCM_ILOCP (x) \
? *scm_ilookup ((x), env) \
: SCM_EVALIM2(x))
#else
#define SCM_EVALIM(x, env) SCM_EVALIM2(x)
#endif
#ifdef DEBUG_EXTENSIONS
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#define SCM_XEVAL(x, env) (SCM_IMP (x) \
? SCM_EVALIM2(x) \
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: (*scm_ceval_ptr) ((x), (env)))
#define SCM_XEVALCAR(x, env) (SCM_NCELLP (SCM_CAR (x)) \
? SCM_EVALIM (SCM_CAR (x), env) \
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: (SCM_SYMBOLP (SCM_CAR (x)) \
? *scm_lookupcar (x, env, 1) \
: (*scm_ceval_ptr) (SCM_CAR (x), env)))
#else
#define SCM_XEVAL(x, env) (SCM_IMP (x) \
? SCM_EVALIM2(x) \
: scm_ceval ((x), (env)))
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#define SCM_XEVALCAR(x, env) EVALCAR (x, env)
#endif /* DEBUG_EXTENSIONS */
#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
extern SCM scm_top_level_lookup_closure_var;
extern SCM scm_system_transformer;
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#endif
* chars.c (scm_lowers, scm_uppers, scm_charnames, scm_charnums), eval.c (s_expression, s_test, s_body, s_bindings, s_variable, s_clauses, s_formals): Variables now const. * eval.c (promsmob): Now const. * macros.c (macrosmob): Now const. * smob.c (scm_newsmob): Smobfuns argument now points to const. (freecell, flob, bigob): Now const. * dynl.c (scm_make_argv_from_stringlist, scm_coerce_rostring), error.c (scm_error, scm_syserror, scm_syserror_msg, scm_num_overflow, scm_out_of_range, scm_wrong_type_arg, scm_memory_error, scm_misc_error, scm_wta), macros.c (scm_make_synt), feature.c (scm_add_feature), filesys.c (scm_input_waiting_p), gc.c (scm_gc_start, scm_igc, scm_must_malloc, scm_must_realloc), gsubr.c (scm_make_gsubr), numbers.c (scm_num2dbl, scm_two_doubles, scm_num2long, scm_num2long_long, scm_num2ulong), options.c (scm_options), posix.c (scm_convert_exec_args, environ_list_to_c), procs.c (scm_make_subr_opt, scm_make_subr), ramap.c (scm_ramapc), read.c (scm_flush_ws), socket.c (scm_sock_fd_to_port, scm_fill_sockaddr, scm_addr_vector), stime.c (setzone, restorezone, bdtime2c), strop.c (scm_i_index), strports.c (scm_mkstrport), symbols.c (scm_intern_obarray_soft, scm_intern_obarray, scm_intern, scm_intern0, scm_sysintern0_no_module_lookup, scm_sysintern, scm_sysintern0, scm_symbol_value0), unif.c (scm_aind, scm_shap2ra): Argument indicating calling subr, error message text, reason for error, symbol name or feature name are now pointer to const. * snarf.h (SCM_PROC, SCM_PROC1): String variables are now const. * procs.c (scm_init_iprocs): iproc argument now points to const. * pairs.c (cxrs): Now const. * chars.h, error.h, feature.h, filesys.h, gc.h, gsubr.h, macros.h, numbers.h, options.h, procs.h, ramap.h, read.h, smob.h, strports.h, symbols.h, unif.h: Update variable declarations and function prototypes for above changes. * dynl.c, dynl-dld.c, dynl-dl.c, dynl-shl.c (sysdep_dynl_link, sysdep_dynl_unlink, sysdep_dynl_func): Arguments FNAME, SUBR, and SYMB now point to const.
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extern const char scm_s_expression[];
extern const char scm_s_test[];
extern const char scm_s_body[];
extern const char scm_s_bindings[];
extern const char scm_s_variable[];
extern const char scm_s_clauses[];
extern const char scm_s_formals[];
extern const char scm_s_set_x[];
extern SCM scm_sym_and;
extern SCM scm_sym_begin;
extern SCM scm_sym_case;
extern SCM scm_sym_cond;
extern SCM scm_sym_define;
extern SCM scm_sym_do;
extern SCM scm_sym_if;
extern SCM scm_sym_lambda;
extern SCM scm_sym_let;
extern SCM scm_sym_letstar;
extern SCM scm_sym_letrec;
extern SCM scm_sym_quote;
extern SCM scm_sym_quasiquote;
extern SCM scm_sym_unquote;
extern SCM scm_sym_uq_splicing;
extern SCM scm_sym_dot;
extern SCM scm_sym_atapply;
extern SCM scm_sym_atcall_cc;
extern SCM scm_sym_at_call_with_values;
extern SCM scm_sym_delay;
extern SCM scm_sym_arrow;
extern SCM scm_sym_else;
extern SCM scm_sym_apply;
extern SCM scm_sym_set_x;
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extern SCM scm_sym_args;
extern SCM scm_f_apply;
extern SCM * scm_ilookup (SCM iloc, SCM env);
extern SCM * scm_lookupcar (SCM vloc, SCM genv, int check);
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);
* procs.c, procs.h (scm_subr_entry): New type: Stores data associated with subrs. (SCM_SUBRNUM, SCM_SUBR_ENTRY, SCM_SUBR_GENERIC, SCM_SUBR_PROPS, SCM_SUBR_DOC): New macros. (scm_subr_table): New variable. (scm_mark_subr_table): New function. * init.c (scm_boot_guile_1): Call scm_init_subr_table. * gc.c (scm_gc_mark): Don't mark subr names here. (scm_igc): Call scm_mark_subr_table. * snarf.h (SCM_GPROC, SCM_GPROC1): New macros. * procs.c, procs.h (scm_subr_p): New function (used internally). * gsubr.c, gsubr.h (scm_make_gsubr_with_generic): New function. * objects.c, objects.h (scm_primitive_generic): New class. * objects.h (SCM_CMETHOD_CODE, SCM_CMETHOD_ENV): New macros. * print.c (scm_iprin1): Print primitive-generics. * __scm.h (SCM_WTA_DISPATCH_1, SCM_GASSERT1, SCM_WTA_DISPATCH_2, SCM_GASSERT2): New macros. * eval.c (SCM_CEVAL, SCM_APPLY): Replace scm_wta --> SCM_WTA_DISPATCH_1 for scm_cxr's (unary floating point primitives). NOTE: This means that it is now *required* to use SCM_GPROC1 when creating float scm_cxr's (float scm_cxr's is an obscured representation that will be removed in the future anyway, so backward compatibility is no problem here). * numbers.c: Converted most numeric primitives (all but bit comparison operations and bit operations) to dispatch on generic if args don't match. * eval.c, eval.h (scm_eval_body): New function. * objects.c (scm_call_generic_0, scm_call_generic_1, scm_call_generic_2, scm_call_generic_3, scm_apply_generic): New functions. * eval.c (SCM_CEVAL): Apply the cmethod directly after having called scm_memoize_method instead of doing a second lookup. * objects.h (scm_memoize_method): Now returns the memoized cmethod. * procs.c (scm_make_subr_opt): Use scm_sysintern0 instead of scm_sysintern so that the binding connected with the subr name isn't cleared when we give set = 0.
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extern SCM scm_eval_body (SCM code, SCM env);
extern SCM scm_eval_args (SCM i, SCM env, SCM proc);
extern SCM scm_deval_args (SCM l, SCM env, SCM proc, SCM *lloc);
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_x (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 SCM scm_m_nil_cond (SCM xorig, SCM env);
extern SCM scm_m_nil_ify (SCM xorig, SCM env);
extern SCM scm_m_t_ify (SCM xorig, SCM env);
extern SCM scm_m_0_cond (SCM xorig, SCM env);
extern SCM scm_m_0_ify (SCM xorig, SCM env);
extern SCM scm_m_1_ify (SCM xorig, SCM env);
extern SCM scm_m_atfop (SCM xorig, SCM env);
extern SCM scm_m_atbind (SCM xorig, SCM env);
extern SCM scm_m_at_call_with_values (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_call_0 (SCM proc);
extern SCM scm_call_1 (SCM proc, SCM arg1);
extern SCM scm_call_2 (SCM proc, SCM arg1, SCM arg2);
extern SCM scm_call_3 (SCM proc, SCM arg1, SCM arg2, SCM arg3);
extern SCM scm_call_4 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM arg4);
extern SCM scm_apply_0 (SCM proc, SCM args);
extern SCM scm_apply_1 (SCM proc, SCM arg1, SCM args);
extern SCM scm_apply_2 (SCM proc, SCM arg1, SCM arg2, SCM args);
extern SCM scm_apply_3 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM args);
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_m_expand_body (SCM xorig, SCM env);
extern SCM scm_macroexp (SCM x, SCM env);
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_force (SCM x);
extern SCM scm_promise_p (SCM x);
extern SCM scm_cons_source (SCM xorig, SCM x, SCM y);
extern SCM scm_copy_tree (SCM obj);
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#if SCM_DEBUG_DEPRECATED == 0
extern SCM scm_eval_3 (SCM obj, int copyp, SCM env);
extern SCM scm_eval2 (SCM obj, SCM env_thunk);
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#endif
extern SCM scm_i_eval_x (SCM exp, SCM env);
extern SCM scm_i_eval (SCM exp, SCM env);
extern SCM scm_primitive_eval (SCM exp);
extern SCM scm_primitive_eval_x (SCM exp);
extern SCM scm_eval (SCM exp, SCM module);
extern SCM scm_eval_x (SCM exp, SCM module);
extern void scm_init_eval (void);
#endif /* SCM_EVAL_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/