github.com/ecodeclub/eorm@v0.0.2-0.20231001112437-dae71da914d0/assignment.go (about)

     1  // Copyright 2021 ecodeclub
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package eorm
    16  
    17  // Assignable represents that something could be used alias "assignment" statement
    18  type Assignable interface {
    19  	assign()
    20  }
    21  
    22  // Assignment represents assignment statement
    23  type Assignment binaryExpr
    24  
    25  func Assign(column string, value interface{}) Assignment {
    26  	var expr Expr
    27  	switch v := value.(type) {
    28  	case Expr:
    29  		expr = v
    30  	default:
    31  		expr = valueExpr{val: v}
    32  	}
    33  	return Assignment{left: C(column), op: opEQ, right: expr}
    34  }
    35  
    36  func (Assignment) assign() {
    37  	panic("implement me")
    38  }
    39  
    40  type valueExpr struct {
    41  	val interface{}
    42  }
    43  
    44  func (valueExpr) expr() (string, error) {
    45  	return "", nil
    46  }