Gleipnir/jet
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Literal and cast clean up.

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This commit is contained in:
go-jet 2019-08-13 10:16:26 +02:00
parent 9a34dc9fd7
commit 614c7e9754
22 changed files with 438 additions and 177 deletions
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33
internal/jet/cast.go
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@ -1,17 +1,7 @@
package jet
import "strconv"
type Cast interface {
AS(castType string) Expression
AS_CHAR(lenght ...int) StringExpression
// Cast expression AS date type
AS_DATE() DateExpression
// Cast expression AS numeric type, using precision and optionally scale
AS_DECIMAL() FloatExpression
// Cast expression AS time type
AS_TIME() TimeExpression
}
type CastImpl struct {
@ -37,29 +27,6 @@ func (b *CastImpl) AS(castType string) Expression {
return castExp
}
func (b *CastImpl) AS_CHAR(lenght ...int) StringExpression {
if len(lenght) > 0 {
return StringExp(b.AS("CHAR(" + strconv.Itoa(lenght[0]) + ")"))
}
return StringExp(b.AS("CHAR"))
}
// Cast expression AS date type
func (b *CastImpl) AS_DATE() DateExpression {
return DateExp(b.AS("DATE"))
}
// Cast expression AS date type
func (b *CastImpl) AS_DECIMAL() FloatExpression {
return FloatExp(b.AS("DECIMAL"))
}
// Cast expression AS date type
func (b *CastImpl) AS_TIME() TimeExpression {
return TimeExp(b.AS("TIME"))
}
type castExpression struct {
ExpressionInterfaceImpl