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src/sql/engine/expr/ob_expr_bit_left_shift.cpp

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX SQL_ENG
+#include "ob_expr_bit_left_shift.h"
+#include "lib/oblog/ob_log.h"
+#include "share/object/ob_obj_cast.h"
+//#include "sql/engine/expr/ob_expr_promotion_util.h"
+
+using namespace oceanbase::common;
+namespace oceanbase {
+namespace sql {
+
+ObExprBitLeftShift::ObExprBitLeftShift(ObIAllocator& alloc)
+    : ObBitwiseExprOperator(alloc, T_OP_BIT_LEFT_SHIFT, N_BIT_LEFT_SHIFT, 2, NOT_ROW_DIMENSION)
+{}
+
+int ObExprBitLeftShift::calc_result2(ObObj& res, const ObObj& obj1, const ObObj& obj2, ObExprCtx& expr_ctx) const
+{
+  return ObBitwiseExprOperator::calc_(res, obj1, obj2, expr_ctx, ObBitwiseExprOperator::BIT_LEFT_SHIFT);
+}
+
+int ObExprBitLeftShift::cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const
+{
+  int ret = OB_SUCCESS;
+  const BitOperator op = BIT_LEFT_SHIFT;
+  if (OB_FAIL(cg_bitwise_expr(expr_cg_ctx, raw_expr, rt_expr, op))) {
+    LOG_WARN("cg_bitwise_expr failed", K(ret), K(rt_expr), K(op));
+  }
+
+  return ret;
+}
+}  // namespace sql
+}  // namespace oceanbase