// ast_check.cpp,v 1.9 2006/06/15 18:56:09 parsons Exp

/*

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*/

// The check ensures that for every forward declared struct or union we also
// saw a full definition.

#include "global_extern.h"
#include "utl_err.h"

ACE_RCSID (ast, 
           ast_check, 
           "ast_check.cpp,v 1.9 2006/06/15 18:56:09 parsons Exp")

// Static storage for remembering nodes.
static AST_Type	**ast_fwds = 0;
static long	ast_n_fwds_used = 0;
static long	ast_n_fwds_alloc = 0;

#undef	INCREMENT
#define	INCREMENT	64

// Store a node representing a forward declared struct or union.
void
AST_record_fwd_decl (AST_Type *n)
{
  AST_Type **o_ast_fwds = 0;
  long o_ast_n_fwds_alloc = 0;

  // Make sure there's space to store one more.
  if (ast_n_fwds_used == ast_n_fwds_alloc)
    {
      if (ast_n_fwds_alloc == 0)
        {
          ast_n_fwds_alloc = INCREMENT;
          ACE_NEW (ast_fwds,
                   AST_Type *[ast_n_fwds_alloc]);
        }
      else
        {
          o_ast_fwds = ast_fwds;
          o_ast_n_fwds_alloc = ast_n_fwds_alloc;

          ast_n_fwds_alloc += INCREMENT;
          ACE_NEW (ast_fwds,
                   AST_Type *[ast_n_fwds_alloc]);

          for (long i = 0; i < o_ast_n_fwds_alloc; i++)
            {
              ast_fwds[i] = o_ast_fwds[i];
            }

          delete o_ast_fwds;
        }
    }

  // Insert new node.
  ast_fwds[ast_n_fwds_used++] = n;
}

// Check that all forward declared structs and unions were also defined.
TAO_IDL_FE_Export void
AST_check_fwd_decls (void)
{
  AST_Type *d = 0;

  for (long i = 0; i < ast_n_fwds_used; ++i)
    {
      d = ast_fwds[i];

      if (!d->is_defined ())
        {
          idl_global->err ()->fwd_decl_not_defined (d);
        }
    }
    
  // This method is called once per file in the command line,
  // in between which the elements of ast_fwds are destroyed,
  // so we have to clean up.  
  delete [] ast_fwds;
  ast_fwds = 0;
  ast_n_fwds_alloc = 0;
  ast_n_fwds_used = 0;
}
