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7c9c0169b4
(ENTER_APPLY): Remove optional use of a continuation when making trap call. (scm_debug_opts): Change doc for 'cheap option to make clear that it is now obsolete. (CEVAL, SCM_APPLY): Remove optional use of a continuation when making trap calls, and implement substitution of eval expressions and return values using the values that the trap call handlers return. * debug.h (SCM_CHEAPTRAPS_P): Removed.
194 lines
6.1 KiB
C
194 lines
6.1 KiB
C
/* classes: h_files */
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#ifndef SCM_DEBUG_H
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#define SCM_DEBUG_H
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/* Copyright (C) 1995,1996,1998,1999,2000,2001,2002,2004
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* Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libguile/__scm.h"
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#include "libguile/options.h"
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/*
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* Here comes some definitions for the debugging machinery.
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* It might seem strange to represent debug flags as ints,
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* but consider that any particular piece of code is normally
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* only interested in one flag at a time. This is then
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* the most efficient representation.
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*/
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/* {Options}
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*/
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/* scm_debug_opts is defined in eval.c.
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*/
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SCM_API scm_t_option scm_debug_opts[];
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#define SCM_BREAKPOINTS_P scm_debug_opts[1].val
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#define SCM_TRACE_P scm_debug_opts[2].val
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#define SCM_REC_PROCNAMES_P scm_debug_opts[3].val
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#define SCM_BACKWARDS_P scm_debug_opts[4].val
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#define SCM_BACKTRACE_WIDTH scm_debug_opts[5].val
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#define SCM_BACKTRACE_INDENT scm_debug_opts[6].val
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#define SCM_N_FRAMES scm_debug_opts[7].val
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#define SCM_BACKTRACE_MAXDEPTH scm_debug_opts[8].val
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#define SCM_BACKTRACE_DEPTH scm_debug_opts[9].val
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#define SCM_BACKTRACE_P scm_debug_opts[10].val
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#define SCM_DEVAL_P scm_debug_opts[11].val
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#define SCM_STACK_LIMIT scm_debug_opts[12].val
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#define SCM_SHOW_FILE_NAME scm_debug_opts[13].val
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#define SCM_WARN_DEPRECATED scm_debug_opts[14].val
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#define SCM_N_DEBUG_OPTIONS 15
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SCM_API int scm_debug_mode_p;
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SCM_API int scm_check_entry_p;
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SCM_API int scm_check_apply_p;
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SCM_API int scm_check_exit_p;
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#define SCM_RESET_DEBUG_MODE \
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do {\
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scm_check_entry_p = (SCM_ENTER_FRAME_P || SCM_BREAKPOINTS_P)\
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&& scm_is_true (SCM_ENTER_FRAME_HDLR);\
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scm_check_apply_p = (SCM_APPLY_FRAME_P || SCM_TRACE_P)\
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&& scm_is_true (SCM_APPLY_FRAME_HDLR);\
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scm_check_exit_p = (SCM_EXIT_FRAME_P || SCM_TRACE_P)\
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&& scm_is_true (SCM_EXIT_FRAME_HDLR);\
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scm_debug_mode_p = SCM_DEVAL_P\
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|| scm_check_entry_p || scm_check_apply_p || scm_check_exit_p;\
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} while (0)
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/* {Evaluator}
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*/
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typedef union scm_t_debug_info
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{
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struct { SCM exp, env; } e;
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struct { SCM proc, args; } a;
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SCM id;
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} scm_t_debug_info;
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SCM_API long scm_debug_eframe_size;
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typedef struct scm_t_debug_frame
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{
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struct scm_t_debug_frame *prev;
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long status;
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scm_t_debug_info *vect;
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scm_t_debug_info *info;
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} scm_t_debug_frame;
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#define SCM_EVALFRAME (0L << 11)
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#define SCM_APPLYFRAME (1L << 11)
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#define SCM_VOIDFRAME (3L << 11)
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#define SCM_MACROEXPF (1L << 10)
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#define SCM_TAILREC (1L << 9)
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#define SCM_TRACED_FRAME (1L << 8)
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#define SCM_ARGS_READY (1L << 7)
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#define SCM_DOVERFLOW (1L << 6)
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#define SCM_MAX_FRAME_SIZE 63
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#define SCM_FRAMETYPE (3L << 11)
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#define SCM_EVALFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_EVALFRAME)
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#define SCM_APPLYFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_APPLYFRAME)
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#define SCM_VOIDFRAMEP(x) (((x).status & SCM_FRAMETYPE) == SCM_VOIDFRAME)
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#define SCM_OVERFLOWP(x) (((x).status & SCM_DOVERFLOW) != 0)
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#define SCM_ARGS_READY_P(x) (((x).status & SCM_ARGS_READY) != 0)
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#define SCM_TRACED_FRAME_P(x) (((x).status & SCM_TRACED_FRAME) != 0)
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#define SCM_TAILRECP(x) (((x).status & SCM_TAILREC) != 0)
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#define SCM_MACROEXPP(x) (((x).status & SCM_MACROEXPF) != 0)
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#define SCM_SET_OVERFLOW(x) ((x).status |= SCM_DOVERFLOW)
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#define SCM_SET_ARGSREADY(x) ((x).status |= SCM_ARGS_READY)
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#define SCM_CLEAR_ARGSREADY(x) ((x).status &= ~SCM_ARGS_READY)
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#define SCM_SET_TRACED_FRAME(x) ((x).status |= SCM_TRACED_FRAME)
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#define SCM_CLEAR_TRACED_FRAME(x) ((x).status &= ~SCM_TRACED_FRAME)
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#define SCM_SET_TAILREC(x) ((x).status |= SCM_TAILREC)
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#define SCM_SET_MACROEXP(x) ((x).status |= SCM_MACROEXPF)
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#define SCM_CLEAR_MACROEXP(x) ((x).status &= ~SCM_MACROEXPF)
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/* {Debug Objects}
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*/
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SCM_API scm_t_bits scm_tc16_debugobj;
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#define SCM_DEBUGOBJP(x) \
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SCM_TYP16_PREDICATE (scm_tc16_debugobj, x)
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#define SCM_DEBUGOBJ_FRAME(x) \
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((scm_t_debug_frame *) SCM_CELL_WORD_1 (x))
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#define SCM_SET_DEBUGOBJ_FRAME(x, f) SCM_SET_CELL_WORD_1 (x, f)
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/* {Memoized Source}
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*/
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SCM_API scm_t_bits scm_tc16_memoized;
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#define SCM_MEMOIZEDP(x) SCM_TYP16_PREDICATE (scm_tc16_memoized, x)
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#define SCM_MEMOIZED_EXP(x) SCM_CAR (SCM_CELL_OBJECT_1 (x))
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#define SCM_MEMOIZED_ENV(x) SCM_CDR (SCM_CELL_OBJECT_1 (x))
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SCM_API SCM scm_debug_object_p (SCM obj);
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SCM_API SCM scm_local_eval (SCM exp, SCM env);
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SCM_API SCM scm_reverse_lookup (SCM env, SCM data);
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SCM_API SCM scm_start_stack (SCM info_id, SCM exp, SCM env);
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SCM_API SCM scm_procedure_environment (SCM proc);
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SCM_API SCM scm_procedure_source (SCM proc);
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SCM_API SCM scm_procedure_name (SCM proc);
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SCM_API SCM scm_memoized_environment (SCM m);
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SCM_API SCM scm_make_memoized (SCM exp, SCM env);
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SCM_API SCM scm_memoized_p (SCM obj);
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SCM_API SCM scm_with_traps (SCM thunk);
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SCM_API SCM scm_evaluator_traps (SCM setting);
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SCM_API SCM scm_debug_options (SCM setting);
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SCM_API SCM scm_make_debugobj (scm_t_debug_frame *debug);
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SCM_API SCM scm_i_unmemoize_expr (SCM memoized);
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SCM_API void scm_init_debug (void);
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#ifdef GUILE_DEBUG
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SCM_API SCM scm_memcons (SCM car, SCM cdr, SCM env);
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SCM_API SCM scm_mem_to_proc (SCM obj);
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SCM_API SCM scm_proc_to_mem (SCM obj);
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SCM_API SCM scm_debug_hang (SCM obj);
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#endif /*GUILE_DEBUG*/
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#if SCM_ENABLE_DEPRECATED == 1
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#define CHECK_ENTRY scm_check_entry_p
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#define CHECK_APPLY scm_check_apply_p
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#define CHECK_EXIT scm_check_exit_p
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/* Deprecated in guile 1.7.0 on 2004-03-29. */
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#define SCM_DEBUGGINGP scm_debug_mode_p
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#define scm_debug_mode scm_debug_mode_p
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#endif
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#endif /* SCM_DEBUG_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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