Method callCasting

cel2sql.go:396–427

(function string, target *exprpb.Expr, args []*exprpb.Expr)

}

func (con *converter) callCasting(function string, target *exprpb.Expr, args []*exprpb.Expr) error {
	arg := args[0]
	if function == overloads.TypeConvertInt && isTimestampType(con.getType(arg)) {
		con.str.WriteString("UNIX_SECONDS(")
		if err := con.visit(arg); err != nil {
			return err
		}
		con.str.WriteString(")")
		return nil
	}
	con.str.WriteString("CAST(")
	if err := con.visit(arg); err != nil {
		return err
	}
	con.str.WriteString(" AS ")
	switch function {
	case overloads.TypeConvertBool:
		con.str.WriteString("BOOL")
	case overloads.TypeConvertBytes:
		con.str.WriteString("BYTES")
	case overloads.TypeConvertDouble:
		con.str.WriteString("FLOAT64")
	case overloads.TypeConvertInt:
		con.str.WriteString("INT64")
	case overloads.TypeConvertString:
		con.str.WriteString("STRING")
	case overloads.TypeConvertUint:
		con.str.WriteString("INT64")
	}
	con.str.WriteString(")")
	return nil
}

func (con *converter) visitCallFunc(expr *exprpb.Expr) error {
	c := expr.GetCallExpr()