init - add project files

tools/jet-2.12.0/mysql/cast.go

@@ -0,0 +1,75 @@
+package mysql
+
+import (
+	"github.com/go-jet/jet/v2/internal/jet"
+	"strconv"
+)
+
+type cast struct {
+	jet.Cast
+}
+
+// CAST function converts a expr (of any type) into latter specified datatype.
+func CAST(expr Expression) *cast {
+	ret := &cast{}
+	ret.Cast = jet.NewCastImpl(expr)
+
+	return ret
+}
+
+// AS casts expressions to castType
+func (c *cast) AS(castType string) Expression {
+	return c.Cast.AS(castType)
+}
+
+// AS_DATETIME cast expression to DATETIME type
+func (c *cast) AS_DATETIME() DateTimeExpression {
+	return DateTimeExp(c.AS("DATETIME"))
+}
+
+// AS_SIGNED casts expression to SIGNED type
+func (c *cast) AS_SIGNED() IntegerExpression {
+	return IntExp(c.AS("SIGNED"))
+}
+
+// AS_UNSIGNED casts expression to UNSIGNED type
+func (c *cast) AS_UNSIGNED() IntegerExpression {
+	return IntExp(c.AS("UNSIGNED"))
+}
+
+// AS_CHAR casts expression to CHAR type with optional length
+func (c *cast) AS_CHAR(length ...int) StringExpression {
+	if len(length) > 0 {
+		return StringExp(c.AS("CHAR(" + strconv.Itoa(length[0]) + ")"))
+	}
+
+	return StringExp(c.AS("CHAR"))
+}
+
+// AS_DATE casts expression AS DATE type
+func (c *cast) AS_DATE() DateExpression {
+	return DateExp(c.AS("DATE"))
+}
+
+func (c *cast) AS_FLOAT() FloatExpression {
+	return FloatExp(c.AS("FLOAT"))
+}
+
+func (c *cast) AS_DOUBLE() FloatExpression {
+	return FloatExp(c.AS("DOUBLE"))
+}
+
+// AS_DECIMAL casts expression AS DECIMAL type
+func (c *cast) AS_DECIMAL() FloatExpression {
+	return FloatExp(c.AS("DECIMAL"))
+}
+
+// AS_TIME casts expression AS TIME type
+func (c *cast) AS_TIME() TimeExpression {
+	return TimeExp(c.AS("TIME"))
+}
+
+// AS_BINARY casts expression as BINARY type
+func (c *cast) AS_BINARY() StringExpression {
+	return StringExp(c.AS("BINARY"))
+}