init - add project files

tools/jet-2.12.0/internal/jet/cast.go

@@ -0,0 +1,53 @@
+package jet
+
+// Cast interface
+type Cast interface {
+	AS(castType string) Expression
+}
+
+type castImpl struct {
+	expression Expression
+}
+
+// NewCastImpl creates new generic cast
+func NewCastImpl(expression Expression) Cast {
+	castImpl := castImpl{
+		expression: expression,
+	}
+
+	return &castImpl
+}
+
+func (b *castImpl) AS(castType string) Expression {
+	castExp := &castExpression{
+		expression: b.expression,
+		cast:       string(castType),
+	}
+
+	castExp.ExpressionInterfaceImpl.Parent = castExp
+
+	return castExp
+}
+
+type castExpression struct {
+	ExpressionInterfaceImpl
+
+	expression Expression
+	cast       string
+}
+
+func (b *castExpression) serialize(statement StatementType, out *SQLBuilder, options ...SerializeOption) {
+
+	expression := b.expression
+	castType := b.cast
+
+	if castOverride := out.Dialect.OperatorSerializeOverride("CAST"); castOverride != nil {
+		castOverride(expression, String(castType))(statement, out, FallTrough(options)...)
+		return
+	}
+
+	out.WriteString("CAST(")
+	expression.serialize(statement, out, FallTrough(options)...)
+	out.WriteString("AS")
+	out.WriteString(castType + ")")
+}