pike.git / src / interpret.c

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pike.git/src/interpret.c:1:   /*\   ||| This file a part of Pike, and is copyright by Fredrik Hubinette   ||| Pike is distributed as GPL (General Public License)   ||| See the files COPYING and DISCLAIMER for more information.   \*/   /**/   #include "global.h" - RCSID("$Id: interpret.c,v 1.242 2001/08/15 20:55:51 mast Exp $"); + RCSID("$Id: interpret.c,v 1.243 2001/08/16 04:38:50 mast Exp $");   #include "interpret.h"   #include "object.h"   #include "program.h"   #include "svalue.h"   #include "array.h"   #include "mapping.h"   #include "pike_error.h"   #include "language.h"   #include "stralloc.h"   #include "constants.h"
pike.git/src/interpret.c:1809:    free_svalue(& throw_value);    throw_value.type=T_INT;    if(SETJMP(recovery))    {    if(handle_errors) call_handle_error();    Pike_sp->u.integer = 0;    Pike_sp->subtype=NUMBER_NUMBER;    Pike_sp->type = T_INT;    Pike_sp++;    }else{ -  ptrdiff_t expected_stack = Pike_sp - Pike_interpreter.evaluator_stack + 1; +  /* ptrdiff_t expected_stack = Pike_sp - Pike_interpreter.evaluator_stack + 1; */    Pike_sp+=args;    apply_low(o,fun,args); -  +  /* apply_low already does this, afaics. /mast    if(Pike_sp - Pike_interpreter.evaluator_stack > expected_stack)    pop_n_elems(Pike_sp - Pike_interpreter.evaluator_stack - expected_stack);    if(Pike_sp - Pike_interpreter.evaluator_stack < expected_stack)    {    Pike_sp->u.integer = 0;    Pike_sp->subtype=NUMBER_NUMBER;    Pike_sp->type = T_INT;    Pike_sp++;    } -  +  */    }    UNSETJMP(recovery);   }      PMOD_EXPORT void safe_apply_low(struct object *o,int fun,int args)   {    safe_apply_low2(o, fun, args, 1);   }      PMOD_EXPORT void safe_apply(struct object *o, char *fun ,INT32 args)   {   #ifdef PIKE_DEBUG    if(!o->prog) fatal("Apply safe on destructed object.\n");   #endif    safe_apply_low2(o, find_identifier(fun, o->prog), args, 1);   }    - PMOD_EXPORT void safe_apply_handler(const char *fun, + PMOD_EXPORT void low_safe_apply_handler(const char *fun,    struct object *handler,    struct object *compat,    INT32 args)   {    int i;   #if 0 -  +  fprintf(stderr, "low_safe_apply_handler(\"%s\", 0x%08p, 0x%08p, %d)\n", +  fun, handler, compat, args); + #endif /* 0 */ +  if (handler && handler->prog && +  (i = find_identifier(fun, handler->prog)) != -1) { +  safe_apply_low2(handler, i, args, 1); +  } else if (compat && compat->prog && +  (i = find_identifier(fun, compat->prog)) != -1) { +  safe_apply_low2(compat, i, args, 1); +  } else { +  struct object *master_obj = master(); +  if ((i = find_identifier(fun, master_obj->prog)) != -1) +  safe_apply_low2(master_obj, i, args, 1); +  else { +  pop_n_elems(args); +  push_undefined(); +  } +  } + } +  + PMOD_EXPORT int safe_apply_handler(const char *fun, +  struct object *handler, +  struct object *compat, +  INT32 args, +  TYPE_FIELD rettypes) + { +  JMP_BUF recovery; +  int i, ret; + #if 0    fprintf(stderr, "safe_apply_handler(\"%s\", 0x%08p, 0x%08p, %d)\n",    fun, handler, compat, args);   #endif /* 0 */    -  free_svalue(&throw_value); -  throw_value.type = T_INT; +  Pike_sp-=args; +  free_svalue(& throw_value); +  throw_value.type=T_INT;    -  +  if (SETJMP(recovery)) +  ret = 0; +  else { +  Pike_sp += args; +     if (handler && handler->prog &&    (i = find_identifier(fun, handler->prog)) != -1) { -  safe_apply_low2(handler, i, args, 0); +  apply_low(handler, i, args);    } else if (compat && compat->prog &&    (i = find_identifier(fun, compat->prog)) != -1) { -  safe_apply_low2(compat, i, args, 0); +  apply_low(compat, i, args);    } else {    struct object *master_obj = master();    if ((i = find_identifier(fun, master_obj->prog)) != -1) -  safe_apply_low2(master_obj, i, args, 0); +  apply_low(master_obj, i, args);    else {    pop_n_elems(args);    push_undefined(); -  +  goto dont_check_ret_type;    }    } -  if (throw_value.type != T_STRING && throw_value.type != T_INT) { -  free_svalue(&throw_value); -  throw_value.type = T_INT; +  +  if (rettypes && +  !(((1 << Pike_sp[-1].type) & rettypes) || +  ((rettypes & BIT_ZERO) && +  Pike_sp[-1].type == T_INT && +  Pike_sp[-1].u.integer == 0))) { +  push_constant_text("Invalid return value from %s: %O\n"); +  push_text(fun); +  push_svalue(Pike_sp - 3); +  f_sprintf(3); +  if (!Pike_sp[-1].u.string->size_shift) +  Pike_error("%s", Pike_sp[-1].u.string->str); +  else +  Pike_error("Invalid return value from %s\n", fun);    } -  +  +  dont_check_ret_type: +  ret = 1;    }    -  +  UNSETJMP(recovery); +  return ret; + } +    PMOD_EXPORT void apply_lfun(struct object *o, int fun, int args)   {   #ifdef PIKE_DEBUG    if(fun < 0 || fun >= NUM_LFUNS)    fatal("Apply lfun on illegal value!\n");   #endif    if(!o->prog)    PIKE_ERROR("destructed object", "Apply on destructed object.\n", Pike_sp, args);       apply_low(o, (int)FIND_LFUN(o->prog,fun), args);