MDEV-17250 Remove unused Item_copy_xxx

Author: abarkov

sql/item.cc

@@ -4169,31 +4169,6 @@ void Item_param::make_field(Send_field *field)
  field->type= m_out_param_info->type;
 }
 
-/****************************************************************************
- Item_copy
-****************************************************************************/
-
-Item_copy *Item_copy::create (Item *item)
-{
- switch (item->result_type())
- {
- case STRING_RESULT:
- return new Item_copy_string (item);
- case REAL_RESULT: 
- return new Item_copy_float (item);
- case INT_RESULT:
- return item->unsigned_flag ? 
- new Item_copy_uint (item) : new Item_copy_int (item);
- case DECIMAL_RESULT:
- return new Item_copy_decimal (item);
- case TIME_RESULT:
- case ROW_RESULT:
- case IMPOSSIBLE_RESULT:
- DBUG_ASSERT (0);
- }
- /* should not happen */
- return NULL;
-}
 
 /****************************************************************************
  Item_copy_string
@@ -4251,156 +4226,6 @@ my_decimal *Item_copy_string::val_decimal(my_decimal *decimal_value)
 }
 
 
-/****************************************************************************
- Item_copy_int
-****************************************************************************/
-
-void Item_copy_int::copy()
-{
- cached_value= item->val_int();
- null_value=item->null_value;
-}
-
-static int save_int_value_in_field (Field *, longlong, bool, bool);
-
-int Item_copy_int::save_in_field(Field *field, bool no_conversions)
-{
- return save_int_value_in_field(field, cached_value, 
- null_value, unsigned_flag);
-}
-
-
-String *Item_copy_int::val_str(String *str)
-{
- if (null_value)
- return (String *) 0;
-
- str->set(cached_value, &my_charset_bin);
- return str;
-}
-
-
-my_decimal *Item_copy_int::val_decimal(my_decimal *decimal_value)
-{
- if (null_value)
- return (my_decimal *) 0;
-
- int2my_decimal(E_DEC_FATAL_ERROR, cached_value, unsigned_flag, decimal_value);
- return decimal_value;
-}
-
-
-/****************************************************************************
- Item_copy_uint
-****************************************************************************/
-
-String *Item_copy_uint::val_str(String *str)
-{
- if (null_value)
- return (String *) 0;
-
- str->set((ulonglong) cached_value, &my_charset_bin);
- return str;
-}
-
-
-/****************************************************************************
- Item_copy_float
-****************************************************************************/
-
-String *Item_copy_float::val_str(String *str)
-{
- if (null_value)
- return (String *) 0;
- else
- {
- double nr= val_real();
- str->set_real(nr,decimals, &my_charset_bin);
- return str;
- }
-}
-
-
-my_decimal *Item_copy_float::val_decimal(my_decimal *decimal_value)
-{
- if (null_value)
- return (my_decimal *) 0;
- else
- {
- double nr= val_real();
- double2my_decimal(E_DEC_FATAL_ERROR, nr, decimal_value);
- return decimal_value;
- }
-}
-
-
-int Item_copy_float::save_in_field(Field *field, bool no_conversions)
-{
- if (null_value)
- return set_field_to_null(field);
- field->set_notnull();
- return field->store(cached_value);
-}
-
-
-/****************************************************************************
- Item_copy_decimal
-****************************************************************************/
-
-int Item_copy_decimal::save_in_field(Field *field, bool no_conversions)
-{
- if (null_value)
- return set_field_to_null(field);
- field->set_notnull();
- return field->store_decimal(&cached_value);
-}
-
-
-String *Item_copy_decimal::val_str(String *result)
-{
- if (null_value)
- return (String *) 0;
- result->set_charset(&my_charset_bin);
- my_decimal2string(E_DEC_FATAL_ERROR, &cached_value, 0, 0, 0, result);
- return result;
-}
-
-
-double Item_copy_decimal::val_real()
-{
- if (null_value)
- return 0.0;
- else
- {
- double result;
- my_decimal2double(E_DEC_FATAL_ERROR, &cached_value, &result);
- return result;
- }
-}
-
-
-longlong Item_copy_decimal::val_int()
-{
- if (null_value)
- return LL(0);
- else
- {
- longlong result;
- my_decimal2int(E_DEC_FATAL_ERROR, &cached_value, unsigned_flag, &result);
- return result;
- }
-}
-
-
-void Item_copy_decimal::copy()
-{
- my_decimal *nr= item->val_decimal(&cached_value);
- if (nr && nr != &cached_value)
- my_decimal2decimal (nr, &cached_value);
- null_value= item->null_value;
-}
-
-
 /*
  Functions to convert item to field (for send_result_set_metadata)
 */

sql/item.h

@@ -3664,13 +3664,6 @@ class Item_copy :public Item
  }
 
 public:
- /** 
- Factory method to create the appropriate subclass dependent on the type of 
- the original item.
-
- @param item the original item.
- */ 
- static Item_copy *create (Item *item);
 
  /** 
  Update the cache with the value of the original item
@@ -3732,89 +3725,6 @@ class Item_copy_string : public Item_copy
 };
 
 
-class Item_copy_int : public Item_copy
-{
-protected: 
- longlong cached_value; 
-public:
- Item_copy_int (Item *i) : Item_copy(i) {}
- int save_in_field(Field *field, bool no_conversions);
-
- virtual String *val_str(String*);
- virtual my_decimal *val_decimal(my_decimal *);
- virtual double val_real()
- {
- return null_value ? 0.0 : (double) cached_value;
- }
- virtual longlong val_int()
- {
- return null_value ? LL(0) : cached_value;
- }
- virtual void copy();
-};
-
-
-class Item_copy_uint : public Item_copy_int
-{
-public:
- Item_copy_uint (Item *item) : Item_copy_int(item) 
- {
- unsigned_flag= 1;
- }
-
- String *val_str(String*);
- double val_real()
- {
- return null_value ? 0.0 : (double) (ulonglong) cached_value;
- }
-};
-
-
-class Item_copy_float : public Item_copy
-{
-protected: 
- double cached_value; 
-public:
- Item_copy_float (Item *i) : Item_copy(i) {}
- int save_in_field(Field *field, bool no_conversions);
-
- String *val_str(String*);
- my_decimal *val_decimal(my_decimal *);
- double val_real()
- {
- return null_value ? 0.0 : cached_value;
- }
- longlong val_int()
- {
- return (longlong) rint(val_real());
- }
- void copy()
- {
- cached_value= item->val_real();
- null_value= item->null_value;
- }
-};
-
-
-class Item_copy_decimal : public Item_copy
-{
-protected: 
- my_decimal cached_value;
-public:
- Item_copy_decimal (Item *i) : Item_copy(i) {}
- int save_in_field(Field *field, bool no_conversions);
-
- String *val_str(String*);
- my_decimal *val_decimal(my_decimal *) 
- { 
- return null_value ? NULL: &cached_value; 
- }
- double val_real();
- longlong val_int();
- void copy();
-};
-
-
 /*
  Cached_item_XXX objects are not exactly caches. They do the following: