pike.git / src / array.c

version» Context lines:

pike.git/src/array.c:1:   /*   || This file is part of Pike. For copyright information see COPYRIGHT.   || Pike is distributed under GPL, LGPL and MPL. See the file COPYING   || for more information. - || $Id: array.c,v 1.213 2008/07/08 17:16:41 grubba Exp $ + || $Id: array.c,v 1.214 2008/07/12 10:21:12 grubba Exp $   */      #include "global.h"   #include "svalue.h"   #include "array.h"   #include "object.h"   #include "las.h"   #include "stralloc.h"   #include "interpret.h"   #include "opcodes.h"
pike.git/src/array.c:2442:       copy_svalues_recursively_no_free(ITEM(ret),ITEM(a),a->size,m);       ret->type_field=a->type_field;    return ret;   }      /** Apply the elements of an array. Arguments the array should be    * applied with should be on the stack before the call and the    * resulting array will be on the stack after the call. +  * +  * Note that the array a may be modified destructively if it has +  * only a single reference.    */   PMOD_EXPORT void apply_array(struct array *a, INT32 args)   {    INT32 e, hash = 0;    struct svalue *argp = Pike_sp-args; -  struct array *aa; +     struct array *cycl; -  TYPE_FIELD new_types = 0; +     DECLARE_CYCLIC();       check_stack(args);    check_array_for_destruct(a);    for (e=0; e<args; e++)    hash = hash * 33 + DO_NOT_WARN ((INT32) PTR_TO_INT (Pike_sp[-e-1].u.ptr));       if (!(cycl = (struct array *)BEGIN_CYCLIC(a, (ptrdiff_t)hash))) { -  +  TYPE_FIELD new_types = 0; +  if (a->refs == 1) { +  /* Destructive operation possible. */ +  ref_push_array(a); +  a->type_field |= BIT_UNFINISHED; +  for (e=0; e < a->size; e++) +  { +  assign_svalues_no_free(Pike_sp, argp, args, BIT_MIXED); +  Pike_sp+=args; +  /* FIXME: Don't throw apply errors from apply_svalue here. */ +  apply_svalue(ITEM(a)+e,args); +  new_types |= 1 << Pike_sp[-1].type; +  assign_svalue(ITEM(a)+e, &Pike_sp[-1]); +  pop_stack(); +  } +  a->type_field = new_types; + #ifdef PIKE_DEBUG +  array_check_type_field(a); + #endif +  stack_pop_n_elems_keep_top(args); +  } else { +  struct array *aa;    push_array(aa = allocate_array_no_init(0, a->size));    for (e=0; (e<a->size) && (e < aa->malloced_size); e++)    {    assign_svalues_no_free(Pike_sp, argp, args, BIT_MIXED);    Pike_sp+=args;    /* FIXME: Don't throw apply errors from apply_svalue here. */    apply_svalue(ITEM(a)+e,args);    new_types |= 1 << Pike_sp[-1].type;    assign_svalue_no_free(ITEM(aa)+e, &Pike_sp[-1]);    aa->size = e+1;    pop_stack();    }    aa->type_field = new_types;   #ifdef PIKE_DEBUG    array_check_type_field(aa);   #endif -  +  }    stack_pop_n_elems_keep_top(args);    }    else {    pop_n_elems(args);    ref_push_array(cycl);    }       END_CYCLIC();   }