Gleipnir/jet
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MySQL interval with date/time expression arithmetic.

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go-jet 2019-12-01 18:25:30 +01:00
parent 15acb1c326
commit d1970b3a55
41 changed files with 805 additions and 318 deletions
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31
internal/jet/timez_expression.go
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@ -4,23 +4,18 @@ package jet
type TimezExpression interface {
Expression
//EQ
EQ(rhs TimezExpression) BoolExpression
//NOT_EQ
NOT_EQ(rhs TimezExpression) BoolExpression
//IS_DISTINCT_FROM
IS_DISTINCT_FROM(rhs TimezExpression) BoolExpression
//IS_NOT_DISTINCT_FROM
IS_NOT_DISTINCT_FROM(rhs TimezExpression) BoolExpression
//LT
LT(rhs TimezExpression) BoolExpression
//LT_EQ
LT_EQ(rhs TimezExpression) BoolExpression
//GT
GT(rhs TimezExpression) BoolExpression
//GT_EQ
GT_EQ(rhs TimezExpression) BoolExpression
ADD(rhs Interval) TimezExpression
SUB(rhs Interval) TimezExpression
}
type timezInterfaceImpl struct {
@ -59,23 +54,13 @@ func (t *timezInterfaceImpl) GT_EQ(rhs TimezExpression) BoolExpression {
return gtEq(t.parent, rhs)
}
//---------------------------------------------------//
type prefixTimezExpression struct {
expressionInterfaceImpl
timezInterfaceImpl
prefixOpExpression
func (t *timezInterfaceImpl) ADD(rhs Interval) TimezExpression {
return TimezExp(newBinaryOperatorExpression(t.parent, rhs, "+"))
}
//func newPrefixTimezExpression(operator string, expression Expression) TimezExpression {
// timeExpr := prefixTimezExpression{}
// timeExpr.prefixOpExpression = newPrefixExpression(expression, operator)
//
// timeExpr.expressionInterfaceImpl.parent = &timeExpr
// timeExpr.timezInterfaceImpl.parent = &timeExpr
//
// return &timeExpr
//}
func (t *timezInterfaceImpl) SUB(rhs Interval) TimezExpression {
return TimezExp(newBinaryOperatorExpression(t.parent, rhs, "-"))
}
//---------------------------------------------------//