// This may look like C, but it's really -*- C++ -*-
// ast_array.h,v 1.17 2006/06/15 18:56:10 parsons Exp
/*

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*/

#ifndef _AST_ARRAY_AST_ARRAY_HH
#define _AST_ARRAY_AST_ARRAY_HH

#include "ast_concrete_type.h"

class UTL_ExprList;
class AST_Expression;
class AST_Type;
class ast_visitor;

// Representation of array declaration:
// An array is a combination of a list of dimensions and a base type.

class TAO_IDL_FE_Export AST_Array : public virtual AST_ConcreteType
{
public:
  // Operations.

  // Constructor(s).
  AST_Array (void);

  AST_Array (UTL_ScopedName *n,
             unsigned long ndims,
             UTL_ExprList *dims,
             bool local,
             bool abstract);

  // Destructor.
  virtual ~AST_Array (void);

  // Data Accessors.

  unsigned long n_dims (void);

  AST_Expression **dims (void);
  void set_dims (AST_Expression **,
                 unsigned long);

  AST_Type *base_type (void) const;
  void set_base_type (AST_Type *nbt);

  // Recursively called on valuetype to check for legal use as
  // a primary key. Overridden for valuetype, struct, sequence,
  // union, array, typedef, and interface.
  virtual bool legal_for_primary_key (void) const;
  
  // Cleanup.
  virtual void destroy (void);

  // Narrowing.
  DEF_NARROW_METHODS1(AST_Array, AST_ConcreteType);
  DEF_NARROW_FROM_DECL(AST_Array);

  // AST Dumping.
  virtual void dump (ACE_OSTREAM_TYPE &o);

  // Visiting.
  virtual int ast_accept (ast_visitor *visitor);

protected:
  virtual int compute_size_type (void);
  // Compute the size type if it is unknown.

private:
  // Data.

  unsigned long pd_n_dims;
  // How many dimensions?

  AST_Expression **pd_dims;
  // Their expressions.

  AST_Type *pd_base_type;
  // Base type of array.
  
  bool owns_base_type_;
  // If our base type is anonymous array or sequence, we're
  // responsible for destroying it.

private:

  // Compute how many dimensions.
  AST_Expression **compute_dims (UTL_ExprList *dims,
                                 unsigned long ndims);
};

#endif           // _AST_ARRAY_AST_ARRAY_HH
