TAO/TAO_IDL/ast/ast_field.cpp

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  63 */
  64
  65 // AST_Fields denote fields in IDL structure, union and exception
  66 // declarations. AST_Field is also used as a superclass of AST_Argument
  67 // and AST_UnionBranch.
  68 // AST_Fields have a field type (a subclass of AST_Type) and a name
  69 // (a UTL_ScopedName).
  70
  71 // AST_Field supplies two constructors, one to be used in constructing
  72 // AST_Field nodes, the other to be used in constructing AST_Argument
  73 // nodes and AST_UnionBranch nodes.
  74
  75 #include "ast_field.h"
  76 #include "ast_param_holder.h"
  77 #include "ast_visitor.h"
  78
  79 #include "utl_identifier.h"
  80 #include "utl_err.h"
  81
  82 #include "global_extern.h"
  83
  84 AST_Decl::NodeType const
  85 AST_Field::NT = AST_Decl::NT_field;
  86
  87 AST_Field::AST_Field (AST_Type *ft,
  88                       UTL_ScopedName *n,
  89                       Visibility vis)
  90   : COMMON_Base (),
  91     AST_Decl (AST_Decl::NT_field,
  92               n),
  93     ref_type_ (ft),
  94     visibility_ (vis),
  95     owns_base_type_ (false)
  96 {
  97   FE_Utils::tmpl_mod_ref_check (this, ft);
  98
  99   AST_Decl::NodeType fnt = ft->node_type ();
 100
 101   // In each of these cases, we are responsible for destroying
 102   // our ref_type_ member.
 103   this->owns_base_type_ =
 104     fnt == AST_Decl::NT_array
 105     || fnt == AST_Decl::NT_sequence
 106     || fnt == AST_Decl::NT_fixed
 107     || fnt == AST_Decl::NT_param_holder;
 108
 109   if (fnt == AST_Decl::NT_param_holder)
 110     {
 111       AST_Param_Holder *ph = dynamic_cast<AST_Param_Holder*> (ft);
 112
 113       if (ph->info ()->type_ == AST_Decl::NT_const)
 114         {
 115           idl_global->err ()->not_a_type (ft);
 116         }
 117     }
 118 }
 119
 120 // To be used when constructing a node of a subclass of AST_Field.
 121 AST_Field::AST_Field (AST_Decl::NodeType nt,
 122                       AST_Type *ft,
 123                       UTL_ScopedName *n,
 124                       Visibility vis)
 125   : COMMON_Base (),
 126     AST_Decl (nt,
 127               n),
 128     ref_type_ (ft),
 129     visibility_ (vis),
 130     owns_base_type_ (false)
 131 {
 132   AST_Decl::NodeType fnt = ft->node_type ();
 133
 134   // In each of these cases, we are responsible for destroying
 135   // our ref_type_ member.
 136   this->owns_base_type_ =
 137     fnt == AST_Decl::NT_array
 138     || fnt == AST_Decl::NT_sequence
 139     || fnt == AST_Decl::NT_fixed
 140     || fnt == AST_Decl::NT_param_holder;
 141
 142   if (fnt == AST_Decl::NT_param_holder)
 143     {
 144       AST_Param_Holder *ph = dynamic_cast<AST_Param_Holder*> (ft);
 145
 146       if (ph->info ()->type_ == AST_Decl::NT_const)
 147         {
 148           idl_global->err ()->not_a_type (ft);
 149         }
 150     }
 151 }
 152
 153 AST_Field::AST_Field (
 154   UTL_ScopedName *name,
 155   AST_Field *other)
 156   : COMMON_Base (),
 157     AST_Decl (name, dynamic_cast<AST_Decl*>(other)),
 158     ref_type_ (other->field_type ()),
 159     visibility_ (other->visibility ()),
 160     owns_base_type_ (false)
 161 {
 162   // We definitely don't own the base type and the param holder check shouldn't
 163   // be an issue here.
 164 }
 165
 166 AST_Field::~AST_Field (void)
 167 {
 168 }
 169
 170 void
 171 AST_Field::dump (ACE_OSTREAM_TYPE &o)
 172 {
 173   switch (this->visibility_)
 174     {
 175     case vis_PRIVATE:
 176       this->dump_i (o, "private ");
 177
 178       break;
 179     case vis_PUBLIC:
 180       this->dump_i (o, "public ");
 181
 182       break;
 183     case vis_NA:
 184       break;
 185     }
 186
 187   this->ref_type_->local_name ()->dump (o);
 188
 189   this->dump_i (o, " ");
 190
 191   this->local_name ()->dump (o);
 192 }
 193
 194 int
 195 AST_Field::ast_accept (ast_visitor *visitor)
 196 {
 197   return visitor->visit_field (this);
 198 }
 199
 200 void
 201 AST_Field::destroy (void)
 202 {
 203   if (this->owns_base_type_ && this->ref_type_)
 204     {
 205       this->ref_type_->destroy ();
 206       delete this->ref_type_;
 207       this->ref_type_ = 0;
 208     }
 209
 210   this->AST_Decl::destroy ();
 211 }
 212
 213 AST_Type *
 214 AST_Field::field_type (void) const
 215 {
 216   return this->ref_type_;
 217 }
 218
 219 AST_Field::Visibility
 220 AST_Field::visibility (void) const
 221 {
 222   return this->visibility_;
 223 }
 224
 225 void
 226 AST_Field::visibility (AST_Field::Visibility val)
 227 {
 228   visibility_ = val;
 229 }
 230
 231 int
 232 AST_Field::contains_wstring (void)
 233 {
 234   return this->ref_type_->contains_wstring ();
 235 }
 236
 237 IMPL_NARROW_FROM_DECL(AST_Field)
 238
 239 bool AST_Field::annotatable () const
 240 {
 241   return true;
 242 }