Assignment to a receiver
Reports assignments to method receivers.
When you assign a value to the method receiver, the value will not be reflected outside of the method itself. Values will be reflected in subsequent calls from the same method.
Example:
package main
import "fmt"
type demo struct {
Val int
}
func (d *demo) change() {
d = nil // Assignment to the method receiver propagates only to callees but not to callers
d.myVal()
}
func (d *demo) myVal() {
fmt.Printf("my val: %#v\n", d)
}
func (d demo) change2() {
d = demo{} // Assignment to the method receiver doesn't propagate to other calls
d.myVal()
}
func (d *demo) change3() {
d.Val = 3
d.myVal()
}
func main() {
d := &demo{}
d.myVal()
d.change()
d.myVal()
d.Val = 2
d.change2()
d.myVal()
d.change3()
d.myVal()
}
Inspection Details | |
|---|---|
Available in: | GoLand 2023.3 |
Plugin: | Go, 233.SNAPSHOT |
Last modified: 13 July 2023