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reflect.MakeChan() Function in Golang with Examples

  • Last Updated : 28 Apr, 2020

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.MakeChan() Function in Golang is used to create a new channel with the specified type and buffer size. To access this function, one needs to imports the reflect package in the program.

Syntax:

func MakeChan(typ Type, buffer int) Value

Parameters: This function takes only two parameters of Type type(typ) and int type (buffer).

Return Value: This function returns the newly created channel.

Below examples illustrate the use of above method in Golang:



Example 1:




// Golang program to illustrate
// reflect.MakeChan() Function
  
package main
  
import (
    "fmt"
    "reflect"
)
  
// Main function
func main() {
  
    var val chan int
  
     // create new channel
     value := reflect.MakeChan(reflect.Indirect(reflect.ValueOf(&val)).Type(), 0)
  
     fmt.Println("Value :", value)
}

Output:

Value : 0xc00005e060

Example 2:




// Golang program to illustrate
// reflect.MakeChan() Function
  
package main
  
import (
    "fmt"
    "reflect"
)
  
// Main function
func main() {
  
    var val chan string 
  
     var strVal reflect.Value = reflect.ValueOf(&val)
  
     indirectStr := reflect.Indirect(strVal)
  
     // create new channel
     value := reflect.MakeChan(indirectStr.Type(), 1024)
  
     fmt.Printf("Type : [%v] \nCapacity : [%v]", value.Kind(), value.Cap())
}

Output:

Type : [chan] 
Capacity : [1024]



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