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 }