Class: Oinky::Internal::Variant
- Inherits:
-
FFI::Struct
- Object
- FFI::Struct
- Oinky::Internal::Variant
- Defined in:
- lib/oinky.rb,
lib/oinky.rb
Defined Under Namespace
Classes: ValueT
Instance Attribute Summary collapse
-
#refs ⇒ Object
We must do this again.
Class Method Summary collapse
Instance Method Summary collapse
-
#rb_val ⇒ Object
Convert to a ruby value.
Instance Attribute Details
#refs ⇒ Object
We must do this again. We can’t rely on the one in the DB_string we create because that can get discarded as soon as we are finished using it to initialize.
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# File 'lib/oinky.rb', line 244 def refs @refs end |
Class Method Details
.make(val) ⇒ Object
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# File 'lib/oinky.rb', line 246 def self.make(val) nv = Variant.new nv.refs = make_in_place(nv, val) nv end |
.make_from_set(set) ⇒ Object
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# File 'lib/oinky.rb', line 287 def self.make_from_set(set) ptr = VariantSet.new(set.size) ptr.refs = [] set.each_with_index{|v, i| ptr.refs << make_in_place(ptr[i], v) } ptr end |
.make_in_place(nv, val) ⇒ Object
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# File 'lib/oinky.rb', line 251 def self.make_in_place(nv, val) if val.is_a?(String) or val.is_a?(NativeBuffer) nv[:type] = NkyTypeCodes[:string] return DB_string.make_in_place(nv[:value][:string_value], val) elsif val.is_a?(DateTime) or val.is_a?(Time) or val.is_a?(Date) or val.is_a?(OinkyDateTime) dt = val.to_datetime nv[:value][:dt_value] = OinkyDateTime.from_dt(dt).intval nv[:type] = NkyTypeCodes[:datetime] return nil elsif val.is_a?(Fixnum) or val.is_a?(Bignum) if val < 0 nv[:value][:int_value] = val nv[:type] = NkyTypeCodes[:int64] else nv[:value][:uint_value] = val nv[:type] = NkyTypeCodes[:uint64] end return nil elsif val.is_a?(Float) nv[:value][:f64_value] = val nv[:type] = NkyTypeCodes[:float64] return nil elsif val.is_a?(TrueClass) nv[:value][:int_value] = 1 nv[:type] = NkyTypeCodes[:bit] return nil elsif val.is_a?(FalseClass) nv[:value][:int_value] = 0 nv[:type] = NkyTypeCodes[:bit] return nil else raise OinkyException.new("Don't know how to make variant from given value of type: #{val.class}") end return nil end |
Instance Method Details
#rb_val ⇒ Object
Convert to a ruby value
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# File 'lib/oinky.rb', line 297 def rb_val v = self[:value] case self[:type] when :string return v[:string_value].rb_str when :datetime return OinkyDateTime.from_intval(v[:dt_value]).to_datetime when :bit return v[:int_value] == 1 when :int8 return v[:int_value] when :int16 return v[:int_value] when :int32 return v[:int_value] when :int64 return v[:int_value] when :uint8 return v[:uint_value] when :uint16 return v[:uint_value] when :uint32 return v[:uint_value] when :uint64 return v[:uint_value] when :float32 return v[:f32_value] when :float64 return v[:f64_value] end raise OinkyException.new("Invalid type code in Variant.") end |