
/*
 
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Copyright 1992, 1993, 1994 Sun Microsystems, Inc.  Printed in the United
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This product is protected by copyright and distributed under the following
license restricting its use.
 
The Interface Definition Language Compiler Front End (CFE) is made
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notice on all media and documentation and the software program in which
this product is incorporated in whole or part. You may copy and extend
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and documentation for the Interface Definition Language CFE.
 
INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED AS IS WITH NO WARRANTIES OF
ANY KIND INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS
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 */


/*
 * ast_array.cc - Implementation of class AST_Array
 *
 * AST_Array nodes denote array type and field modifiers.
 * AST_Array nodes have a list of dimensions (a UTL_ExprList)
 * a count of the number of dimensions and a base type (a
 * subtype of AST_ConcreteType. This means that we cannot have
 * arrays of AST_Interfaces???
 */

#include "idl.h"
#include "idl_extern.h"

/*
 * Constructor(s) and destructor
 */
AST_Array::AST_Array()
: 
   pd_n_dims (0),
   pd_dims (NULL),
   pd_base_type (NULL)
{}

AST_Array::AST_Array(UTL_ScopedName *n, unsigned long nd, UTL_ExprList *ds)
: 
   AST_Decl (AST_Decl::NT_array, n),
   pd_n_dims (nd), 
   pd_base_type (NULL)
{
   pd_dims = compute_dims(ds, nd);
}

/*
 * Private operations
 */

/*
 * Compute how many dimensions there are and collect their expressions
 * into an array
 */
AST_Expression **
AST_Array::compute_dims(UTL_ExprList *ds, unsigned long nds)
{
   AST_Expression **result;
   UTL_ExprlistActiveIterator *l;
   unsigned long i;

   if (ds == NULL)
      return NULL;

   result = new AST_Expression * [nds];

   l = new UTL_ExprlistActiveIterator(ds);

   for (i = 0; !(l->is_done()) && i < nds; l->next(), i++)
      result[i] = l->item();

   delete l;

   return result;
}

/*
 * Public operations
 */


/*
 * Redefinition of inherited virtual operations
 */

/*
 * Dump this AST_Array node to the ostream o
 */
void
AST_Array::dump(ostream &o)
{
   unsigned long i;

   pd_base_type->dump(o);
   o << " ";
   local_name()->dump(o);

   for (i = 0; i < pd_n_dims; i++)
   {
      o << "[";
      pd_dims[i]->dump(o);
      o << "]";
   }
}

/*
 * Data accessors
 */
unsigned long AST_Array::n_dims ()
{
   return pd_n_dims;
}

AST_Expression ** AST_Array::dims ()
{
   return pd_dims;
}

AST_Type *
AST_Array::base_type()
{
   return pd_base_type;
}

void
AST_Array::set_base_type(AST_Type *nbt)
{
   if (local() == false)
   {
      set_local(nbt->local());
   }
   pd_base_type = nbt;
}

void
AST_Array::set_dims(AST_Expression **ds, unsigned long nds)
{
   pd_dims = ds;
   pd_n_dims = nds;
}

/*
 * Narrowing methods
 */
IMPL_NARROW_METHODS1(AST_Array, AST_ConcreteType)
IMPL_NARROW_FROM_DECL(AST_Array)
