// utl_global.cpp,v 1.144 2006/06/20 18:48:20 jwillemsen Exp

/*

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This product is protected by copyright and distributed under the following
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this product is incorporated in whole or part. You may copy and extend
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*/

#include "idl_global.h"
#include "global_extern.h"
#include "ast_root.h"
#include "ast_generator.h"
#include "ast_structure.h"
#include "ast_sequence.h"
#include "ast_valuetype.h"
#include "utl_identifier.h"
#include "utl_indenter.h"
#include "utl_err.h"
#include "utl_string.h"
#include "nr_extern.h"
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_unistd.h"
#include "ace/OS_NS_strings.h"
#include "ace/Process.h"
#include "ace/OS_NS_ctype.h"

ACE_RCSID (util,
           utl_global,
           "utl_global.cpp,v 1.144 2006/06/20 18:48:20 jwillemsen Exp")

// Define an increment for the size of the array used to store names of
// included files.
#undef INCREMENT
#define INCREMENT 64

static long *pSeenOnce= 0;

#if defined(ACE_OPENVMS)
#include <unixlib.h>
static char* translateName(const char* name)
{
  char* transName = (ACE_OS::strchr (name, '[') == 0
                      ? (char*)name : ::decc$translate_vms (name));
  return (transName == 0 || ((int)transName) == -1 ) ? 0 : transName;
}
#endif

IDL_GlobalData::IDL_GlobalData (void)
  : pd_root (0),
    pd_gen (0),
    pd_primary_key_base (0),
    pd_err (0),
    pd_err_count (0),
    pd_lineno (0),
    pd_filename (0),
    pd_main_filename (0),
    pd_real_filename (0),
    pd_stripped_filename (0),
    pd_import (false),
    pd_in_main_file (false),
    pd_prog_name (0),
    pd_cpp_location (0),
    pd_compile_flags (0),
    pd_local_escapes (0),
    pd_indent (0),
    pd_include_file_names (0),
    pd_n_include_file_names (0),
    pd_n_alloced_file_names (0),
    included_idl_files_ (0),
    n_included_idl_files_ (0),
    n_allocated_idl_files_ (0),
    pd_parse_state (PS_NoState),
    pd_idl_src_file (0),
    tao_root_ (0),
    gperf_path_ (0),
    temp_dir_ (0),
    ident_string_ (0),
    case_diff_error_ (true),
    nest_orb_ (false),
    idl_flags_ (""),
    preserve_cpp_keywords_ (true),
    pass_orb_idl_ (false),
    using_ifr_backend_ (false),
    ignore_idl3_ (false),
    recursion_start_ (0)  // Not used by all backends.
{
  // Path for the perfect hash generator(gperf) program.
  // Default is $ACE_ROOT/bin/gperf unless ACE_GPERF is defined.
  // Use ACE_GPERF if $ACE_ROOT hasn't been set or won't be set
  // in the environment.
  // Form the absolute pathname.
  char* ace_root = ACE_OS::getenv ("ACE_ROOT");

  if (ace_root == 0)
    // This may not cause any problem if -g option is used to specify
    // the correct path for the  gperf program. Let us ignore this
    // error here. It will be caught when we check the existence of
    // the perfect hasher and at that time, we can switch over to some
    // other scheme.
    {
#if defined (ACE_GPERF)
      // The actual gperf program must be included in the definition of
      // ACE_GPERF, not just the directory in which it is located.
      const char ace_gperf[] = ACE_GPERF;
      ACE_NEW (this->gperf_path_,
               char [ACE_OS::strlen (ace_gperf) + 1]);
      ACE_OS::sprintf (this->gperf_path_,
                       "%s",
                       ace_gperf);
#else
      this->gperf_path_ = 0;
#endif
    }
  else
    {
#if defined (ACE_GPERF)
      const char ace_gperf[] = ACE_GPERF;
      ACE_NEW (this->gperf_path_,
               char [ACE_OS::strlen (ace_root)
                     + ACE_OS::strlen ("/bin/")
                     + ACE_OS::strlen (ace_gperf)
                     + 1]);
      ACE_OS::sprintf (this->gperf_path_,
                       "%s" ACE_DIRECTORY_SEPARATOR_STR "bin" ACE_DIRECTORY_SEPARATOR_STR "%s",
                       ace_root,
                       ace_gperf);
#else /* Not ACE_GPERF */
      // Set it to the default value.
      ACE_NEW (this->gperf_path_,
               char [ACE_OS::strlen (ace_root)
                     + ACE_OS::strlen ("/bin/gperf")
                     + 1]);
      ACE_OS::sprintf (this->gperf_path_,
                       "%s" ACE_DIRECTORY_SEPARATOR_STR "bin" ACE_DIRECTORY_SEPARATOR_STR "gperf",
                       ace_root);
#endif /* ACE_GPERF */
    }

  // ambiguous_type_seen_ and basic_type_seen_ are not reset between
  // command line idl files, so do those here and then reset the rest.
  this->ambiguous_type_seen_ = false;
  this->basic_type_seen_ = false;
  this->reset_flag_seen ();
}

IDL_GlobalData::~IDL_GlobalData (void)
{
}

// When starting to process the next command line input idl file, reset.
void
IDL_GlobalData::reset_flag_seen (void)
{
  abstract_iface_seen_ = false;
  aggregate_seen_ = false;
//ambiguous_type_seen_
  any_arg_seen_ = false;
  any_seen_ = false;
  any_seq_seen_ = false;
  array_seen_ = false;
  array_seq_seen_ = false;
  base_object_seen_ = false;
  basic_arg_seen_ = false;
//basic_type_seen_
  bd_string_arg_seen_ = false;
  boolean_seq_seen_ = false;
  char_seq_seen_ = false;
  double_seq_seen_ = false;
  enum_seen_ = false;
  exception_seen_ = false;
  fixed_array_arg_seen_ = false;
  fixed_size_arg_seen_ = false;
  float_seq_seen_ = false;
  fwd_iface_seen_ = false;
  fwd_valuetype_seen_ = false;
  iface_seq_seen_ = false;
  interface_seen_ = false;
  local_iface_seen_ = false;
  long_seq_seen_ = false;
  longdouble_seq_seen_ = false;
  longlong_seq_seen_ = false;
  non_local_iface_seen_ = false;
  non_local_op_seen_ = false;
  object_arg_seen_ = false;
  octet_seq_seen_ = false;
  operation_seen_ = false;
  pseudo_seq_seen_ = false;
  recursive_type_seen_ = false;
  seq_seen_ = false;
  short_seq_seen_ = false;
  special_basic_arg_seen_ = false;
  string_seen_ = false;
  string_member_seen_ = false;
  string_seq_seen_ = false;
  typecode_seen_ = false;
  ub_string_arg_seen_ = false;
  ulong_seq_seen_ = false;
  ulonglong_seq_seen_ = false;
  union_seen_ = false;
  ushort_seq_seen_ = false;
  valuebase_seen_ = false;
  valuefactory_seen_ = false;
  valuetype_seen_ = false;
  var_array_arg_seen_ = false;
  var_size_arg_seen_ = false;
  vt_seq_seen_ = false;
  wchar_seq_seen_ = false;
  wstring_seq_seen_ = false;

  need_skeleton_includes_ = false;
}

// Get or set scopes stack
UTL_ScopeStack &
IDL_GlobalData::scopes (void)
{
  return this->pd_scopes;
}

// Get or set root of AST
AST_Root *
IDL_GlobalData::root (void)
{
  return this->pd_root;
}

void
IDL_GlobalData::set_root (AST_Root *r)
{
  this->pd_root = r;
}

// Get or set generator object
AST_Generator *
IDL_GlobalData::gen (void)
{
  return this->pd_gen;
}

void
IDL_GlobalData::set_gen (AST_Generator *g)
{
  this->pd_gen = g;
}

// Get or set PrimaryKeyBase object
AST_ValueType *
IDL_GlobalData::primary_key_base (void)
{
  return this->pd_primary_key_base;
}

void
IDL_GlobalData::primary_key_base (AST_ValueType *v)
{
  this->pd_primary_key_base = v;
}

// Get or set error object
UTL_Error *
IDL_GlobalData::err (void)
{
  return this->pd_err;
}

void
IDL_GlobalData::set_err (UTL_Error *e)
{
  this->pd_err = e;
}

// Get or set error count
int
IDL_GlobalData::err_count (void)
{
  return this->pd_err_count;
}

void
IDL_GlobalData::set_err_count (int c)
{
  this->pd_err_count = c;
}

// Get or set line number
long
IDL_GlobalData::lineno (void)
{
  return this->pd_lineno;
}

void
IDL_GlobalData::set_lineno (long n)
{
  this->pd_lineno = n;
}

// Get or set file name being read now
UTL_String *
IDL_GlobalData::filename (void)
{
  return this->pd_filename;
}

void
IDL_GlobalData::set_filename (UTL_String *s)
{
  if (this->pd_filename != 0)
    {
      this->pd_filename->destroy ();
      delete this->pd_filename;
      this->pd_filename = 0;
    }

  this->pd_filename = s;
}

// Get or set main file name
UTL_String *
IDL_GlobalData::main_filename (void)
{
  return this->pd_main_filename;
}

void
IDL_GlobalData::set_main_filename (UTL_String *n)
{
  if (this->pd_main_filename != 0)
    {
      this->pd_main_filename->destroy ();
      delete this->pd_main_filename;
      this->pd_main_filename = 0;
    }

  this->pd_main_filename = n;
}

// Get or set real file name
UTL_String *
IDL_GlobalData::real_filename (void)
{
  return this->pd_real_filename;
}

void
IDL_GlobalData::set_real_filename (UTL_String *n)
{
  if (this->pd_real_filename != 0)
    {
      this->pd_real_filename->destroy ();
      delete this->pd_real_filename;
      this->pd_real_filename = 0;
    }

  this->pd_real_filename = n;
}

// Get or set indicator whether import is on
bool
IDL_GlobalData::imported (void)
{
  return this->pd_in_main_file ? false : pd_import;
}

bool
IDL_GlobalData::import (void)
{
  return this->pd_import;
}

void
IDL_GlobalData::set_import (bool is_in)
{
  this->pd_import = is_in;
}

// Get or set indicator whether we're reading the main file now
bool
IDL_GlobalData::in_main_file (void)
{
  return this->pd_in_main_file;
}

void
IDL_GlobalData::set_in_main_file (bool is_in)
{
  this->pd_in_main_file = is_in;
}

// Get or set stripped file name
UTL_String *
IDL_GlobalData::stripped_filename (void)
{
  return this->pd_stripped_filename;
}

void
IDL_GlobalData::set_stripped_filename (UTL_String *nm)
{
  if (this->pd_stripped_filename != 0)
    delete this->pd_stripped_filename;

  this->pd_stripped_filename = nm;
}

// Get or set cache value for argv[0]
const char *
IDL_GlobalData::prog_name (void)
{
  return this->pd_prog_name;
}

void
IDL_GlobalData::set_prog_name (const char *pn)
{
  this->pd_prog_name = pn;
}

// Get or set location to find C preprocessor
const char *
IDL_GlobalData::cpp_location (void)
{
  return this->pd_cpp_location;
}

void
IDL_GlobalData::set_cpp_location (const char *l)
{
  this->pd_cpp_location = l;
}

// Get or set IDL compiler flags
long
IDL_GlobalData::compile_flags (void)
{
  return this->pd_compile_flags;
}

void
IDL_GlobalData::set_compile_flags (long cf)
{
  this->pd_compile_flags = cf;
}

// Get or set local escapes string. This provides additional mechanism
// to pass information to a BE.
char *
IDL_GlobalData::local_escapes (void)
{
  return this->pd_local_escapes;
}

void
IDL_GlobalData::set_local_escapes (const char *e)
{
  if (this->pd_local_escapes != 0)
    {
      delete [] this->pd_local_escapes;
    }

  this->pd_local_escapes = ACE::strnew (e);
}

// Get or set indent object
UTL_Indenter *
IDL_GlobalData::indent (void)
{
  return this->pd_indent;
}

void
IDL_GlobalData::set_indent (UTL_Indenter *i)
{
  this->pd_indent = i;
}

// Have we seen this #include file name before?
long
IDL_GlobalData::seen_include_file_before (char *n)
{
  unsigned long i;
  char *incl = 0;
  char *tmp = n;

  for (i = 0; i < this->pd_n_include_file_names; ++i)
    {
      incl = this->pd_include_file_names[i]->get_string ();

      if (ACE_OS::strcmp (tmp, incl) == 0)
        {
          return ++pSeenOnce[i];
        }
    }

  return 0;
}

// Store the name of an #include file.
void
IDL_GlobalData::store_include_file_name (UTL_String *n)
{
  // Check if we need to store it at all or whether we've seen it already.
  if (this->seen_include_file_before (n->get_string ()))
    {
      n->destroy ();
      delete n; // Don't keep filenames we don't store!
      return;
    }

  // OK, need to store. Make sure there's space for one more string
  if (this->pd_n_include_file_names == this->pd_n_alloced_file_names)
    {
      // Allocating more space.
      if (this->pd_n_alloced_file_names == 0)
        {
          this->pd_n_alloced_file_names = INCREMENT;
          ACE_NEW (this->pd_include_file_names,
                   UTL_String *[this->pd_n_alloced_file_names]);
          ACE_NEW (pSeenOnce, long [this->pd_n_alloced_file_names]);
        }
      else
        {
          UTL_String    **o_include_file_names=   this->pd_include_file_names;
          unsigned long   o_n_alloced_file_names= this->pd_n_alloced_file_names;
          long           *o_pSeenOnce=            pSeenOnce;

          this->pd_n_alloced_file_names += INCREMENT;
          ACE_NEW (this->pd_include_file_names,
                   UTL_String *[this->pd_n_alloced_file_names]);
          ACE_NEW (pSeenOnce, long [this->pd_n_alloced_file_names]);

          for (unsigned long i = 0; i < o_n_alloced_file_names; ++i)
            {
              this->pd_include_file_names[i] = o_include_file_names[i];
              pSeenOnce[i]= o_pSeenOnce[i];
            }

          delete [] o_include_file_names;
          delete [] o_pSeenOnce;
        }
    }

  // Store it.
  pSeenOnce[this->pd_n_include_file_names] = 1;
  this->pd_include_file_names[this->pd_n_include_file_names++] = n;
}

void
IDL_GlobalData::set_include_file_names (UTL_String **ns)
{
  this->pd_include_file_names = ns;
}

UTL_String **
IDL_GlobalData::include_file_names (void)
{
  return this->pd_include_file_names;
}

void
IDL_GlobalData::set_n_include_file_names (unsigned long n)
{
  pd_n_include_file_names = n;
}

unsigned long
IDL_GlobalData::n_include_file_names (void)
{
  return pd_n_include_file_names;
}

// Access methods to deal with other IDL files included in the main
// IDL file.

void
IDL_GlobalData::add_to_included_idl_files (char *file_name)
{
  // Let's avoid duplicates.
  for (size_t index = 0; index < this->n_included_idl_files_; ++index)
    {
      if (!ACE_OS::strcmp (file_name, this->included_idl_files_[index]))
        {
          return;
        }
    }

  // Is there enough space there to store one more file.
  if (this->n_included_idl_files_ == this->n_allocated_idl_files_)
    {
      // Allocating more space.
      if (this->n_allocated_idl_files_ == 0)
        {
          // First time creation.
          this->n_allocated_idl_files_ = INCREMENT;
          ACE_NEW (this->included_idl_files_,
                   char *[this->n_allocated_idl_files_]);
        }
      else
        {
          // Adding more storage.
          char** old_included_idl_files =
            this->included_idl_files_;
          size_t n_old_allocated_idl_files =
            this->n_allocated_idl_files_;
          this->n_allocated_idl_files_ += INCREMENT;
          ACE_NEW (this->included_idl_files_,
                   char *[this->n_allocated_idl_files_]);

          for (size_t i = 0; i < n_old_allocated_idl_files; ++i)
            {
              this->included_idl_files_ [i] = old_included_idl_files [i];
            }

          delete [] old_included_idl_files;
        }
    }

  // Store it.
  this->included_idl_files_ [this->n_included_idl_files_++] =
    ACE::strnew (file_name);
}

char**
IDL_GlobalData::included_idl_files (void)
{
  return this->included_idl_files_;
}

size_t
IDL_GlobalData::n_included_idl_files (void)
{
  return this->n_included_idl_files_;
}

// Set the number of included_idl_files. Use this carefully. This
// method is used when we validate all the #included idl files,
// against the ones that we get after preprocessing.
void
IDL_GlobalData::n_included_idl_files (size_t n)
{
  this->n_included_idl_files_ = n;
}

// Validate the included idl files, some files might have been
// ignored by the preprocessor.
void
IDL_GlobalData::validate_included_idl_files (void)
{
  // Flag to make sure we don't repeat things.
  static int already_done = 0;

  if (already_done == 1)
    {
      return;
    }

  already_done = 1;

  // New number of included_idl_files.
  size_t newj = 0;
  size_t n_found = 0;
  size_t n_pre_preproc_includes = idl_global->n_included_idl_files ();
  char **pre_preproc_includes = idl_global->included_idl_files ();
  size_t n_post_preproc_includes = idl_global->n_include_file_names ();
  UTL_String **post_preproc_includes = idl_global->include_file_names ();

  char pre_abspath[MAXPATHLEN] = "";
  char post_abspath[MAXPATHLEN] = "";
  char **path_tmp = 0;
  char *post_tmp = 0;
  char *full_path = 0;

  for (size_t j = 0; j < n_pre_preproc_includes; ++j)
    {
      // Check this name with the names list that we got from the
      // preprocessor.
      size_t valid_file = 0;
#if defined (ACE_OPENVMS)
      full_path = ACE_OS::realpath (translateName (pre_preproc_includes[j]),
                                    pre_abspath);
#else
      full_path = ACE_OS::realpath (pre_preproc_includes[j],
                                    pre_abspath);
#endif

      if (full_path != 0)
        {
          for (size_t ni = 0; ni < n_post_preproc_includes; ++ni)
            {
              post_tmp = post_preproc_includes[ni]->get_string ();
#if defined (ACE_OPENVMS)
              full_path = ACE_OS::realpath (translateName (post_tmp), post_abspath);
#else
              full_path = ACE_OS::realpath (post_tmp, post_abspath);
#endif
              if (full_path != 0
                  && this->path_cmp (pre_abspath, post_abspath) == 0)
                {
                  FILE *test = ACE_OS::fopen (post_abspath, "r");

                  if (test == 0)
                    {
                      continue;
                    }

                  ACE_OS::fclose (test);

                  // This file name is valid.
                  valid_file = 1;
                  ++n_found;
                  break;
                }
            }
        }

      if (valid_file == 0)
        {
          for (ACE_Unbounded_Queue_Iterator<char *>iter (
                   this->include_paths_
                 );
               !iter.done ();
               iter.advance ())
            {
              iter.next (path_tmp);
              ACE_CString pre_partial (*path_tmp);

              // If the include path has literal "s (because of an include
              // of a Windows path with spaces), we must remove them here.
              if (this->hasspace (pre_partial.c_str ()))
                {
                  pre_partial =
                    pre_partial.substr (1, pre_partial.length () - 2);
                }

              pre_partial += ACE_DIRECTORY_SEPARATOR_STR;
              pre_partial += pre_preproc_includes[j];
#if defined (ACE_OPENVMS)
              full_path =
                ACE_OS::realpath (translateName (pre_partial.c_str ()), pre_abspath);
#else
              full_path =
                ACE_OS::realpath (pre_partial.c_str (), pre_abspath);
#endif

              if (full_path != 0)
                {
                  for (size_t m = 0; m < n_post_preproc_includes; ++m)
                    {
                      post_tmp = post_preproc_includes[m]->get_string ();
#if defined (ACE_OPENVMS)
                      full_path = ACE_OS::realpath (translateName (post_tmp), post_abspath);
#else
                      full_path = ACE_OS::realpath (post_tmp, post_abspath);
#endif

                      if (full_path != 0
                          && this->path_cmp (pre_abspath, post_abspath) == 0)
                        {
                          FILE *test = ACE_OS::fopen (post_abspath, "r");

                          if (test == 0)
                            {
                              continue;
                            }

                          ACE_OS::fclose (test);

                          // This file name is valid.
                          valid_file = 1;
                          ++n_found;
                          break;
                        }
                    }
                }

              if (valid_file == 1)
                {
                  break;
                }
            }
        }

      // Remove the file, if it is not valid.
      if (valid_file == 0)
        {
          delete [] pre_preproc_includes[j];
          pre_preproc_includes[j] = 0;
        }
      else
        {
          // File is valid.

          // Move it to new index if necessary.
          if (j != newj)
            {
              // Move to the new index position.
              pre_preproc_includes[newj] =
                pre_preproc_includes[j];

              // Make old position 0.
              pre_preproc_includes[j] = 0;
            }

          // Increment the new index.
          newj++;
        }

      if (n_found == n_post_preproc_includes)
        {
          break;
        }
    }

  // Now adjust the count on the included_idl_files.
  idl_global->n_included_idl_files (newj);
}

void
IDL_GlobalData::set_parse_state(ParseState ps)
{
  pd_parse_state = ps;
}

IDL_GlobalData::ParseState
IDL_GlobalData::parse_state()
{
  return pd_parse_state;
}

/*
 * Convert a PredefinedType to an ExprType
 */
AST_Expression::ExprType
IDL_GlobalData::PredefinedTypeToExprType (
    AST_PredefinedType::PredefinedType pt
  )
{
  switch (pt) {
  case AST_PredefinedType::PT_long:
    return AST_Expression::EV_long;
  case AST_PredefinedType::PT_ulong:
    return AST_Expression::EV_ulong;
  case AST_PredefinedType::PT_short:
    return AST_Expression::EV_short;
  case AST_PredefinedType::PT_ushort:
    return AST_Expression::EV_ushort;
  case AST_PredefinedType::PT_longlong:
    return AST_Expression::EV_longlong;
  case AST_PredefinedType::PT_ulonglong:
    return AST_Expression::EV_ulonglong;
  case AST_PredefinedType::PT_float:
    return AST_Expression::EV_float;
  case AST_PredefinedType::PT_double:
    return AST_Expression::EV_double;
  case AST_PredefinedType::PT_longdouble:
    return AST_Expression::EV_longdouble;
  case AST_PredefinedType::PT_char:
    return AST_Expression::EV_char;
  case AST_PredefinedType::PT_wchar:
    return AST_Expression::EV_wchar;
  case AST_PredefinedType::PT_octet:
    return AST_Expression::EV_octet;
  case AST_PredefinedType::PT_boolean:
    return AST_Expression::EV_bool;
  case AST_PredefinedType::PT_void:
    return AST_Expression::EV_void;
  default:
    return AST_Expression::EV_enum;
  }
}

// returns the IDL source file being copiled
UTL_String* IDL_GlobalData::idl_src_file (void)
{
  return this->pd_idl_src_file;
}

// set the source IDL file that is being parsed
void IDL_GlobalData::idl_src_file (UTL_String *s)
{
  this->pd_idl_src_file = s;
}

void
IDL_GlobalData::temp_dir (const char *s)
{
  // Delete the old pointer.
  delete [] this->temp_dir_;

  // Allocate memory, 1 for the end of string.
  ACE_NEW (this->temp_dir_,
           char [ACE_OS::strlen (s) +
                ACE_OS::strlen (ACE_DIRECTORY_SEPARATOR_STR) +
                1]);

  // Copy the strings.
  ACE_OS::sprintf (this->temp_dir_,
                   "%s%s",
                   s,
                   ACE_DIRECTORY_SEPARATOR_STR);
}

const char *
IDL_GlobalData::temp_dir (void) const
{
  return this->temp_dir_;
}

void
IDL_GlobalData::tao_root (const char *s)
{
  delete [] this->tao_root_;
  this->tao_root_ = ACE::strnew (s);
}

const char *
IDL_GlobalData::tao_root (void) const
{
  return this->tao_root_;
}

void
IDL_GlobalData::gperf_path (const char *s)
{
  delete [] this->gperf_path_;
  this->gperf_path_ = ACE::strnew (s);
}

const char *
IDL_GlobalData::gperf_path (void) const
{
  return this->gperf_path_;
}

void
IDL_GlobalData::ident_string (const char *s)
{
  delete [] this->ident_string_;
  this->ident_string_ = ACE::strnew (s);
}

const char *
IDL_GlobalData::ident_string (void) const
{
  return this->ident_string_;
}

void
IDL_GlobalData::case_diff_error (bool val)
{
  this->case_diff_error_ = val;
}

bool
IDL_GlobalData::case_diff_error (void)
{
  return this->case_diff_error_;
}

void
IDL_GlobalData::nest_orb (bool val)
{
  this->nest_orb_ = val;
}

bool
IDL_GlobalData::nest_orb (void)
{
  return this->nest_orb_;
}

void
IDL_GlobalData::destroy (void)
{
  if (this->pd_filename != 0)
    {
      this->pd_filename->destroy ();
      delete this->pd_filename;
      this->pd_filename = 0;
    }

  if (this->pd_main_filename != 0)
    {
      this->pd_main_filename->destroy ();
      delete this->pd_main_filename;
      this->pd_main_filename = 0;
    }

  if (this->pd_real_filename != 0)
    {
      this->pd_real_filename->destroy ();
      delete this->pd_real_filename;
      this->pd_real_filename = 0;
    }

  if (this->pd_stripped_filename != 0)
    {
      this->pd_stripped_filename->destroy ();
      delete this->pd_stripped_filename;
      this->pd_stripped_filename = 0;
    }

  if (this->pd_idl_src_file != 0)
    {
      this->pd_idl_src_file->destroy ();
      delete this->pd_idl_src_file;
      this->pd_idl_src_file = 0;
    }

  size_t size = this->pragma_prefixes ().size  ();
  char *trash = 0;

  for (size_t i = 0; i < size; ++i)
    {
      this->pragma_prefixes ().pop (trash);
      delete [] trash;
      trash = 0;
    }

  // Clean up each included file name - the array allocation itself
  // gets cleaned up in fini().
  for (unsigned long j = 0; j < this->pd_n_include_file_names; ++j)
    {
      this->pd_include_file_names[j]->destroy ();
      delete this->pd_include_file_names[j];
      this->pd_include_file_names[j] = 0;
    }

  this->pd_n_include_file_names = 0;

  for (size_t k = 0; k < n_included_idl_files_; ++k)
    {
      ACE::strdelete (this->included_idl_files_[k]);
      this->included_idl_files_[k] = 0;
    }

  this->n_included_idl_files_ = 0;
  this->n_allocated_idl_files_ = 0;
  delete [] this->included_idl_files_;
  this->included_idl_files_ = 0;

  ACE::strdelete (this->recursion_start_);
  this->recursion_start_ = 0;

  if (0 != this->pd_root)
    {
      this->pd_root->destroy ();
    }
}

void
IDL_GlobalData::append_idl_flag (const char *s)
{
  idl_flags_ += " " + ACE_CString (s);
}

const char *
IDL_GlobalData::idl_flags (void) const
{
  return idl_flags_.c_str ();
}

ACE_Hash_Map_Manager<ACE_CString, int, ACE_Null_Mutex> &
IDL_GlobalData::idl_keywords (void)
{
  return this->idl_keywords_;
}

ACE_Unbounded_Stack<char *> &
IDL_GlobalData::pragma_prefixes (void)
{
  return this->pragma_prefixes_;
}

void
IDL_GlobalData::update_prefix (char *filename)
{
  // If we are just starting up and processing the temporary filename,
  // there are no prefix issues to deal with yet.
  if (this->pd_main_filename == 0 || this->pd_filename == 0)
    {
      return;
    }

  char *fstring = this->pd_filename->get_string ();
  char *tail = fstring + ACE_OS::strlen (fstring) - 3;

  // We have to do this check because some preprocessors (gcc 3.2
  // on RedHat Linux 7.1, for one) output the same filename
  // multiple times for no apparent reason, and we don't want it
  // to clear the prefix.
  if (ACE_OS::strcmp (fstring, filename) == 0
      || ACE_OS::strcmp (tail, ".cc") == 0)
    {
      return;
    }

  ACE_CString tmp ("", 0, 0);
  char *main_filename = this->pd_main_filename->get_string ();

//  ACE_CString ext_id (filename);
  char *prefix = 0;

  int status = this->file_prefixes_.find (filename, prefix);

  if (status == 0)
    {
      this->pd_root->prefix (prefix);
    }
  else
    {
      prefix = ACE::strnew ("");
      (void) this->file_prefixes_.bind (ACE::strnew (filename), prefix);
      this->pd_root->prefix ("");
    }

  // The first branch is executed if we are finishing an
  // included IDL file (but the current filename has not yet
  // been changed). So we check for (1) the current filename is
  // not the same as the main filename (2) the prefix stack size
  // is greater than 1 (to skip the case where we are passed the
  // temporary filename) and (3) we have either seen the filename
  // passed in before as an included file or we are passed the
  // main filename. Otherwise we know we are beginning an included
  // file, so we push a blank prefix on the stack, which may
  // possibly be changed later.
  if (this->seen_include_file_before (filename) != 0
      || ACE_OS::strcmp (filename, main_filename) == 0
      || ACE_OS::strcmp (filename, this->pd_filename->get_string ()) != 0)
    {
      if (!this->pd_in_main_file)
        {
          char *trash = 0;
          this->pragma_prefixes_.pop (trash);
          delete [] trash;
        }
    }
  else
    {
      this->pragma_prefixes_.push (tmp.rep ());
    }
}

UTL_ScopedName *
IDL_GlobalData::string_to_scoped_name (char *s)
{
  char *start = s;
  int len = 0;
  UTL_ScopedName *retval = 0;
  char tmp[256];

  // If we're doing #pragma ID, the id string may have a ::
  // while the target scoped name does not, so we check for
  // a space.
  char *test = ACE_OS::strchr (start, ' ');
  char *end = ACE_OS::strstr (start, "::");

  if (test != 0 && test - end < 0)
    {
      end = test;
    }

  while (end != 0)
    {
      len = end - start;

      if (len != 0)
        {
          ACE_OS::strncpy (tmp,
                           start,
                           len);

          tmp[len] = '\0';

          Identifier *id = 0;
          ACE_NEW_RETURN (id,
                          Identifier (tmp),
                          0);

          if (retval == 0)
            {
              ACE_NEW_RETURN (retval,
                              UTL_ScopedName (id,
                                              0),
                              0);
            }
          else
            {
              UTL_ScopedName *conc_name = 0;
              ACE_NEW_RETURN (conc_name,
                              UTL_ScopedName (id,
                                              0),
                              0);

              retval->nconc (conc_name);
            }
        }

      start = end + 2;
      end = (end[0] == ' ' ? 0 : ACE_OS::strstr (start, "::"));

      if (test != 0 && test - end < 0)
        {
          end = 0;
        }
    }

  len = test - start;

  // This means we've already dealt with the space between the target
  // name and the id string (above) and we're done.
  if (test == 0 || len <= 0)
    {
      return retval;
    }

  ACE_OS::strncpy (tmp,
                   start,
                   len);

  tmp[len] = '\0';

  Identifier *id = 0;
  ACE_NEW_RETURN (id,
                  Identifier (tmp),
                  0);

  if (retval == 0)
    {
      ACE_NEW_RETURN (retval,
                      UTL_ScopedName (id,
                                      0),
                      0);
    }
  else
    {
      UTL_ScopedName *conc_name = 0;
      ACE_NEW_RETURN (conc_name,
                      UTL_ScopedName (id,
                                      0),
                      0);

      retval->nconc (conc_name);
    }

  return retval;
}

const char *
IDL_GlobalData::stripped_preproc_include (const char *name)
{
  // Some preprocessors prepend "./" to filenames in the
  // working directory, some others prepend ".\". If either
  // of these are here, we want to strip them.
  if (name[0] == '.')
    {
      if (name[1] == '\\' || name[1] == '/')
        {
          return name + 2;
        }
    }

#if defined(ACE_OPENVMS)
  char* tmp;
  char* tmpName = new char[strlen(name) + 1];
  ACE_OS::strcpy (tmpName, name);
  if ((tmp = ACE_OS::strrchr (tmpName, ';')) != 0)
    *tmp = '\000';
  if ((tmp = translateName (tmpName)) != 0)
    name = tmp;
  delete [] tmpName;

  char home[PATH_MAX];
  if (ACE_OS::getcwd (home, sizeof(home)) != NULL)
    {
      tmp = translateName (home);
      if (tmp == 0)
        tmp = home;
      if (ACE_OS::strlen (tmp) < ACE_OS::strlen (name))
        {
          if (ACE_OS::strncasecmp (tmp, name, ACE_OS::strlen (tmp)) == 0)
            {
              const char* tmpC = name + ACE_OS::strlen (tmp);
              if (*tmpC == '/')
                ++tmpC;
              return (char*)tmpC;
            }
        }
    }
#endif

  return name;
}

/**
 Whether we should not mung idl element names that are
 C++ keywords e.g. delete, operator etc. with _cxx_ prefix.
 Should be true when being used by the IFR Service
 */
bool
IDL_GlobalData::preserve_cpp_keywords (void)
{
  return preserve_cpp_keywords_;
}

/**
 Set whether we should not mung idl element names that are C++
 keywords e.g. delete, operator etc. with _cxx_ prefix.
 Is unset by the tao_idl compiler.
 */
void
IDL_GlobalData::preserve_cpp_keywords (bool val)
{
  preserve_cpp_keywords_ = val;
}

void
IDL_GlobalData::add_include_path (const char *s)
{
  this->include_paths_.enqueue_tail (ACE::strnew (s));
}

ACE_Hash_Map_Manager<char *, char *, ACE_Null_Mutex> &
IDL_GlobalData::file_prefixes (void)
{
  return this->file_prefixes_;
}

bool
IDL_GlobalData::pass_orb_idl (void) const
{
  return this->pass_orb_idl_;
}

void
IDL_GlobalData::pass_orb_idl (bool val)
{
  this->pass_orb_idl_ = val;
}

bool
IDL_GlobalData::using_ifr_backend (void) const
{
  return this->using_ifr_backend_;
}

void
IDL_GlobalData::using_ifr_backend (bool val)
{
  this->using_ifr_backend_ = val;
}

bool
IDL_GlobalData::ignore_idl3 (void) const
{
  return this->ignore_idl3_;
}

void
IDL_GlobalData::ignore_idl3 (bool val)
{
  this->ignore_idl3_ = val;
}

// Return 0 on success, -1 failure. The <errno> corresponding to the
// error that caused the GPERF execution is also set.
int
IDL_GlobalData::check_gperf (void)
{
  // If absolute path is not specified yet, let us call just
  // "gperf". Hopefully PATH is set up correctly to locate the gperf.
  if (idl_global->gperf_path () == 0)
    {
      // If ACE_GPERF is defined then use that gperf program instead of "gperf."
#if defined (ACE_GPERF)
      idl_global->gperf_path (ACE_GPERF);
#else
      idl_global->gperf_path ("gperf");
#endif /* ACE_GPERF */
    }

  // If we have absolute path for the <gperf> rather than just the
  // executable name <gperf>, make sure the file exists
  // firsts. Otherwise just call <gperf>. Probably PATH is set
  // correctly to take care of this.

  // If ACE_GPERF is defined then use that gperf program instead of "gperf."
#if defined (ACE_GPERF)
  if (ACE_OS::strcmp (idl_global->gperf_path (), ACE_GPERF) != 0)
#else
  if (ACE_OS::strcmp (idl_global->gperf_path (), "gperf") != 0)
#endif /* ACE_GPERF */
    {
      // It is absolute path. Check the existance, permissions and
      // the modes.
      if (ACE_OS::access (idl_global->gperf_path (),
                          F_OK | X_OK) == -1)
        {
          // Problem with the file. No point in having the absolute
          // path. Swith to "gperf".
          // If ACE_GPERF is defined then use that gperf program
          //instead of "gperf."
#if defined (ACE_GPERF)
          idl_global->gperf_path (ACE_GPERF);
#else
          idl_global->gperf_path ("gperf");
#endif /* ACE_GPERF */
        }
    }

  // Just call gperf in silent mode. It will come and immly exit.

  // Using ACE_Process.
  ACE_Process process;
  ACE_Process_Options process_options;

  // Set the command line for the gperf program.
  process_options.command_line ("%s"
                                " "
                                "-V",
                                idl_global->gperf_path ());

  // Spawn a process for gperf.
  if (process.spawn (process_options) == -1)
    {
      return -1;
    }

#if defined (ACE_WIN32)
  // No wait or anything in Win32.
  return 0;
#else
  // Wait for gperf to complete.
  ACE_exitcode wait_status = 0;
  if (process.wait (&wait_status) == -1)
    {
      return -1;
    }
  else
    {
      // Wait is sucessful, we will check the exit code from the
      // spawned process.
      if (WIFEXITED (wait_status))
        {
          // Normal exit.

          // Check the exit value of the spawned process. ACE_Process
          // exits with <errno> as exit code, if it is not able to
          // exec gperf program, so get the exit code now and set that
          // to <errno> again, so that it can be used to print error
          // messages.
          errno = WEXITSTATUS (wait_status);
          if (errno)
            {
              // <exec> has failed.
              return -1;
            }
          else
            {
              // Everything was alright.
              return 0;
            }
        }
      else
        {
          // Not a normal exit. No <errno> might be set.
          return -1;
        }
    }
#endif /* ACE_WIN32 */
}

void
IDL_GlobalData::fini (void)
{
  if (0 != this->pd_root)
    {
      this->pd_root->fini ();
      delete this->pd_root;
      this->pd_root = 0;
    }
    
  delete this->pd_err;
  this->pd_err = 0;
  delete this->pd_gen;
  this->pd_gen = 0;
  delete this->pd_indent;
  this->pd_indent = 0;
  delete [] this->pd_local_escapes;
  this->pd_local_escapes = 0;
  delete [] this->tao_root_;
  this->tao_root_ = 0;
  delete [] this->gperf_path_;
  this->gperf_path_ = 0;
  delete [] this->temp_dir_;
  this->temp_dir_ = 0;
  delete [] this->ident_string_;
  this->ident_string_ = 0;
  delete [] this->pd_include_file_names;
  this->pd_include_file_names = 0;

  char **path_tmp = 0;

  for (ACE_Unbounded_Queue_Iterator<char *>qiter (
            this->include_paths_
          );
       !qiter.done ();
       qiter.advance ())
    {
      qiter.next (path_tmp);
      ACE::strdelete (*path_tmp);
    }

  ACE_Hash_Map_Entry<char *, char *> *entry = 0;

  for (ACE_Hash_Map_Iterator<char *, char *, ACE_Null_Mutex> hiter (
           this->file_prefixes_
         );
       !hiter.done ();
       hiter.advance ())
    {
      hiter.next (entry);
      ACE::strdelete (entry->ext_id_);
      ACE::strdelete (entry->int_id_);
    }
}

void
IDL_GlobalData::create_uses_multiple_stuff (
    AST_Component *c,
    AST_Component::port_description &pd
  )
{
  ACE_CString struct_name (pd.id->get_string ());
  struct_name += "Connection";
  Identifier struct_id (struct_name.c_str ());
  UTL_ScopedName sn (&struct_id, 0);
  AST_Structure *connection =
    idl_global->gen ()->create_structure (&sn, 0, 0);
  struct_id.destroy ();

  Identifier object_id ("objref");
  UTL_ScopedName object_name (&object_id,
                              0);
  AST_Field *object_field =
    idl_global->gen ()->create_field (pd.impl,
                                      &object_name,
                                      AST_Field::vis_NA);
  (void) DeclAsScope (connection)->fe_add_field (object_field);
  object_id.destroy ();

  Identifier local_id ("Cookie");
  UTL_ScopedName local_name (&local_id,
                             0);
  Identifier module_id ("Components");
  UTL_ScopedName scoped_name (&module_id,
                              &local_name);
  AST_Decl *d = c->lookup_by_name (&scoped_name,
                                   true);
  local_id.destroy ();
  module_id.destroy ();

  if (d == 0)
    {
      // This would happen if we haven't included Componennts.idl.
      idl_global->err ()->lookup_error (&scoped_name);
      return;
    }

  AST_ValueType *cookie = AST_ValueType::narrow_from_decl (d);

  Identifier cookie_id ("ck");
  UTL_ScopedName cookie_name (&cookie_id,
                              0);
  AST_Field *cookie_field =
    idl_global->gen ()->create_field (cookie,
                                      &cookie_name,
                                      AST_Field::vis_NA);
  (void) DeclAsScope (connection)->fe_add_field (cookie_field);
  cookie_id.destroy ();

  (void) c->fe_add_structure (connection);

  idl_uns_long bound = 0;
  AST_Expression *bound_expr =
    idl_global->gen ()->create_expr (bound,
                                     AST_Expression::EV_ulong);
  AST_Sequence *sequence =
    idl_global->gen ()->create_sequence (bound_expr,
                                         connection,
                                         0,
                                         0,
                                         0);

  ACE_CString seq_string (pd.id->get_string ());
  seq_string += "Connections";
  Identifier seq_id (seq_string.c_str ());
  UTL_ScopedName seq_name (&seq_id,
                           0);
  AST_Typedef *connections =
    idl_global->gen ()->create_typedef (sequence,
                                        &seq_name,
                                        0,
                                        0);
  seq_id.destroy ();

  (void) c->fe_add_typedef (connections);
}

int
IDL_GlobalData::path_cmp (const char *s, const char *t)
{
#if defined (WIN32) || defined (ACE_OPENVMS)
  // Since Windows has case-insensitive filenames, the preprocessor,
  // when searching using a provided relative path, will sometimes
  // capitalize the first letter of the last segment of a path name
  // and make the rest lowercase, regardless of how it was actually
  // spelled when created. This 'feature' was preventing the
  // validation of included IDL files, necessary before generating
  // the corresponding C++ includes.
  return ACE_OS::strcasecmp (s, t);
#else
  return ACE_OS::strcmp (s, t);
#endif /* defined (WIN32) */
}

bool
IDL_GlobalData::hasspace (const char *s)
{
  size_t length = ACE_OS::strlen (s);

  if (length > 2)
    {
      // We don't need to check the first or last slot.
      for (size_t i = 1; i < length - 1; ++i)
        {
          if (ACE_OS::ace_isspace (s[i]))
            {
              return true;
            }
        }
    }

  return false;
}

ACE_Unbounded_Queue<AST_ValueType *> &
IDL_GlobalData::primary_keys (void)
{
  return this->primary_keys_;
}

void
IDL_GlobalData::check_primary_keys (void)
{
  AST_ValueType *holder = 0;

  while (!this->primary_keys_.is_empty ())
    {
      // Dequeue the element at the head of the queue.
      if (this->primary_keys_.dequeue_head (holder))
        {
          ACE_ERROR((LM_ERROR,
                     "(%N:%l) idl_global::check_primary_keys - "
                     "dequeue_head failed\n"));
        }

      if (!holder->legal_for_primary_key ())
        {
          this->pd_err->illegal_primary_key (holder);
        }
    }
}

const char *
IDL_GlobalData::recursion_start (void) const
{
  return this->recursion_start_;
}

void
IDL_GlobalData::recursion_start (const char *val)
{
  ACE::strdelete (this->recursion_start_);
  this->recursion_start_ = ACE::strnew (val);
}

UTL_String *
IDL_GlobalData::utl_string_factory (const char *str)
{
  return new UTL_String (str);
}

void
IDL_GlobalData::add_dcps_data_type (const char* id)
{
  // Check if the type already exists.
  DCPS_Data_Type_Info* newinfo ;
  if (this->dcps_type_info_map_.find (id, newinfo) != 0)
    {
      // No existing entry, add one.

      // trailing space required!!
      char* foo_type;
      ACE_NEW (foo_type, char [ACE_OS::strlen (id) + 2]);
      ACE_OS::sprintf (foo_type, "%s ", id);

      UTL_ScopedName* t1 = idl_global->string_to_scoped_name (foo_type);
      // chained with null Identifier required!!
      UTL_ScopedName* target = new UTL_ScopedName (new Identifier (""), t1);

      newinfo = new DCPS_Data_Type_Info ();
      newinfo->name_ = target;

      // Add the newly formed entry to the map.
      if (this->dcps_type_info_map_.bind( id, newinfo) != 0)
        {
          ACE_ERROR ((LM_ERROR,
                      ACE_TEXT ("(%P|%t) Unable to insert type")
                      ACE_TEXT (" into DCPS type container: %s.\n"),
                      id));
          return;
        }
    }
  else
    {
      ACE_ERROR ((LM_WARNING,
                  ACE_TEXT ("(%P|%t) Duplicate DCPS type defined: %s.\n"),
                  id));
    }

}

bool
IDL_GlobalData::add_dcps_data_key (const char* id, const char* key)
{
  // Search the map for the type.
  DCPS_Data_Type_Info* newinfo = 0;
  
  if (this->dcps_type_info_map_.find (id, newinfo) == 0)
    {
       // Add the new key field to the type.
       newinfo->key_list_.enqueue_tail (key);
       return true;
    }
  else
    {
      ACE_ERROR((LM_ERROR,
                 ACE_TEXT ("missing previous #pragma DCPS_DATA_TYPE\n")));
    }
    
  return false;
}

IDL_GlobalData::DCPS_Data_Type_Info*
IDL_GlobalData::is_dcps_type (UTL_ScopedName* target)
{
  // Traverse the entire map.
  DCPS_Type_Info_Map::ENTRY* entry ;
  for (DCPS_Type_Info_Map::ITERATOR current (this->dcps_type_info_map_);
       current.next (entry);
       current.advance ())
    {
      // Look for our Identifier.
      if (0 == entry->int_id_->name_->compare (target))
        {
          // Found it!
          return entry->int_id_;
        }
    }

  // No joy.
  return 0;
}
