github.com/webx-top/com@v1.2.12/reflect.go (about)

     1  package com
     2  
     3  import (
     4  	"fmt"
     5  	"reflect"
     6  	"strings"
     7  )
     8  
     9  // TestReflect 测试反射：显示字段和方法信息
    10  func TestReflect(v interface{}) {
    11  	val := reflect.ValueOf(v)
    12  	typ := val.Type()
    13  	if typ.Kind() == reflect.Ptr && typ.Elem().Kind() == reflect.Struct {
    14  		typ = typ.Elem()
    15  		val = val.Elem()
    16  	}
    17  	t := reflect.Indirect(val).Type()
    18  	name := t.Name()
    19  	fmt.Println("==================[" + name + ":]==================")
    20  	fmt.Println("PkgPath:", typ.PkgPath())
    21  	fmt.Printf("Methods total: %v\n", typ.NumMethod())
    22  	for i := 0; i < typ.NumMethod(); i++ {
    23  		vt := typ.Method(i)
    24  		vv := val.Method(i)
    25  		fmt.Printf("Type: %v => %v;  Method name: %v\n", vv.Kind(), vv.Kind() == reflect.Func, vt.Name)
    26  	}
    27  	fmt.Println("-----------------------------------------------")
    28  	fmt.Printf("Fields total: %v\n", val.NumField())
    29  	for i := 0; i < val.NumField(); i++ {
    30  		vt := typ.Field(i)
    31  		vv := val.Field(i)
    32  		var extInfo []string
    33  		if vt.Anonymous {
    34  			extInfo = append(extInfo, `anonymous`)
    35  		}
    36  		if vv.CanInterface() {
    37  			fmt.Printf("Type: %v => %v (%v); Index: %v;  Field name: %v; Tag: %v\n", vv.Kind(), vv.Interface(), strings.Join(extInfo, `,`), i, vt.Name,
    38  				vt.Tag)
    39  		} else {
    40  			fmt.Printf("Type: %v => %v (%v); Index: %v;  Field name: %v; Tag: %v\n", vv.Kind(), "<unexported>", strings.Join(extInfo, `,`), i, vt.Name,
    41  				vt.Tag)
    42  		}
    43  	}
    44  	fmt.Println("==================[/" + name + "]==================")
    45  }