diff options
Diffstat (limited to 'sql/item_func.cc')
| -rw-r--r-- | sql/item_func.cc | 187 |
1 files changed, 148 insertions, 39 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc index da185f9878b..c3deae59960 100644 --- a/sql/item_func.cc +++ b/sql/item_func.cc @@ -2139,44 +2139,103 @@ double Item_func_cot::val_real() // Shift-functions, same as << and >> in C/C++ -longlong Item_func_shift_left::val_int() +class Func_handler_shift_left_int_to_ulonglong: + public Item_handled_func::Handler_ulonglong { - DBUG_ASSERT(fixed == 1); - uint shift; - ulonglong res= ((ulonglong) args[0]->val_int() << - (shift=(uint) args[1]->val_int())); - if (args[0]->null_value || args[1]->null_value) +public: + Longlong_null to_longlong_null(Item_handled_func *item) const { - null_value=1; - return 0; + DBUG_ASSERT(item->is_fixed()); + return item->arguments()[0]->to_longlong_null() << + item->arguments()[1]->to_longlong_null(); } - null_value=0; - return (shift < sizeof(longlong)*8 ? (longlong) res : 0); +}; + + +class Func_handler_shift_left_decimal_to_ulonglong: + public Item_handled_func::Handler_ulonglong +{ +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return VDec(item->arguments()[0]).to_xlonglong_null() << + item->arguments()[1]->to_longlong_null(); + } +}; + + +bool Item_func_shift_left::fix_length_and_dec() +{ + static Func_handler_shift_left_int_to_ulonglong ha_int_to_ull; + static Func_handler_shift_left_decimal_to_ulonglong ha_dec_to_ull; + return fix_length_and_dec_op1_std(&ha_int_to_ull, &ha_dec_to_ull); } -longlong Item_func_shift_right::val_int() + +class Func_handler_shift_right_int_to_ulonglong: + public Item_handled_func::Handler_ulonglong { - DBUG_ASSERT(fixed == 1); - uint shift; - ulonglong res= (ulonglong) args[0]->val_int() >> - (shift=(uint) args[1]->val_int()); - if (args[0]->null_value || args[1]->null_value) +public: + Longlong_null to_longlong_null(Item_handled_func *item) const { - null_value=1; - return 0; + DBUG_ASSERT(item->fixed == 1); + return item->arguments()[0]->to_longlong_null() >> + item->arguments()[1]->to_longlong_null(); } - null_value=0; - return (shift < sizeof(longlong)*8 ? (longlong) res : 0); +}; + + +class Func_handler_shift_right_decimal_to_ulonglong: + public Item_handled_func::Handler_ulonglong +{ +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return VDec(item->arguments()[0]).to_xlonglong_null() >> + item->arguments()[1]->to_longlong_null(); + } +}; + + +bool Item_func_shift_right::fix_length_and_dec() +{ + static Func_handler_shift_right_int_to_ulonglong ha_int_to_ull; + static Func_handler_shift_right_decimal_to_ulonglong ha_dec_to_ull; + return fix_length_and_dec_op1_std(&ha_int_to_ull, &ha_dec_to_ull); } -longlong Item_func_bit_neg::val_int() +class Func_handler_bit_neg_int_to_ulonglong: + public Item_handled_func::Handler_ulonglong { - DBUG_ASSERT(fixed == 1); - ulonglong res= (ulonglong) args[0]->val_int(); - if ((null_value=args[0]->null_value)) - return 0; - return ~res; +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return ~ item->arguments()[0]->to_longlong_null(); + } +}; + + +class Func_handler_bit_neg_decimal_to_ulonglong: + public Item_handled_func::Handler_ulonglong +{ +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return ~ VDec(item->arguments()[0]).to_xlonglong_null(); + } +}; + + +bool Item_func_bit_neg::fix_length_and_dec() +{ + static Func_handler_bit_neg_int_to_ulonglong ha_int_to_ull; + static Func_handler_bit_neg_decimal_to_ulonglong ha_dec_to_ull; + return fix_length_and_dec_op1_std(&ha_int_to_ull, &ha_dec_to_ull); } @@ -3199,13 +3258,39 @@ longlong Item_func_find_in_set::val_int() return 0; } -longlong Item_func_bit_count::val_int() + +class Func_handler_bit_count_int_to_slong: + public Item_handled_func::Handler_slong2 { - DBUG_ASSERT(fixed == 1); - ulonglong value= (ulonglong) args[0]->val_int(); - if ((null_value= args[0]->null_value)) - return 0; /* purecov: inspected */ - return (longlong) my_count_bits(value); +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return item->arguments()[0]->to_longlong_null().bit_count(); + } +}; + + +class Func_handler_bit_count_decimal_to_slong: + public Item_handled_func::Handler_slong2 +{ +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return VDec(item->arguments()[0]).to_xlonglong_null().bit_count(); + } +}; + + +bool Item_func_bit_count::fix_length_and_dec() +{ + static Func_handler_bit_count_int_to_slong ha_int_to_slong; + static Func_handler_bit_count_decimal_to_slong ha_dec_to_slong; + set_func_handler(args[0]->cmp_type() == INT_RESULT ? + (const Handler *) &ha_int_to_slong : + (const Handler *) &ha_dec_to_slong); + return m_func_handler->fix_length_and_dec(this); } @@ -6221,14 +6306,38 @@ void Item_func_match::print(String *str, enum_query_type query_type) str->append(STRING_WITH_LEN("))")); } -longlong Item_func_bit_xor::val_int() + +class Func_handler_bit_xor_int_to_ulonglong: + public Item_handled_func::Handler_ulonglong { - DBUG_ASSERT(fixed == 1); - ulonglong arg1= (ulonglong) args[0]->val_int(); - ulonglong arg2= (ulonglong) args[1]->val_int(); - if ((null_value= (args[0]->null_value || args[1]->null_value))) - return 0; - return (longlong) (arg1 ^ arg2); +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return item->arguments()[0]->to_longlong_null() ^ + item->arguments()[1]->to_longlong_null(); + } +}; + + +class Func_handler_bit_xor_dec_to_ulonglong: + public Item_handled_func::Handler_ulonglong +{ +public: + Longlong_null to_longlong_null(Item_handled_func *item) const + { + DBUG_ASSERT(item->is_fixed()); + return VDec(item->arguments()[0]).to_xlonglong_null() ^ + VDec(item->arguments()[1]).to_xlonglong_null(); + } +}; + + +bool Item_func_bit_xor::fix_length_and_dec() +{ + static const Func_handler_bit_xor_int_to_ulonglong ha_int_to_ull; + static const Func_handler_bit_xor_dec_to_ulonglong ha_dec_to_ull; + return fix_length_and_dec_op2_std(&ha_int_to_ull, &ha_dec_to_ull); } |