mirror of
https://gitee.com/johng/gf
synced 2026-06-07 02:12:11 +08:00
105 lines
2.7 KiB
Go
105 lines
2.7 KiB
Go
// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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// Package gutil provides some uncategorized util functions.
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//
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// 工具包.
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package gutil
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"github.com/gogf/gf/g/internal/empty"
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"github.com/gogf/gf/g/util/gconv"
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"os"
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"reflect"
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"runtime"
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)
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// 格式化打印变量
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func Dump(i...interface{}) {
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s := Export(i...)
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if s != "" {
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fmt.Println(s)
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}
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}
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// 格式化导出变量
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func Export(i...interface{}) string {
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buffer := bytes.NewBuffer(nil)
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for _, v := range i {
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if b, ok := v.([]byte); ok {
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buffer.Write(b)
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} else {
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// 主要针对 map[interface{}]* 进行处理，json无法进行encode，
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// 这里强制对所有map进行反射处理转换
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refValue := reflect.ValueOf(v)
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if refValue.Kind() == reflect.Map {
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m := make(map[string]interface{})
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keys := refValue.MapKeys()
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for _, k := range keys {
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m[gconv.String(k.Interface())] = refValue.MapIndex(k).Interface()
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}
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v = m
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}
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// JSON格式化
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encoder := json.NewEncoder(buffer)
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encoder.SetEscapeHTML(false)
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encoder.SetIndent("", "\t")
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if err := encoder.Encode(v); err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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}
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}
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}
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return buffer.String()
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}
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// 打印完整的调用回溯信息
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func PrintBacktrace() {
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index := 1
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buffer := bytes.NewBuffer(nil)
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for i := 0; i < 10000; i++ {
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if _, path, line, ok := runtime.Caller(i); ok {
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buffer.WriteString(fmt.Sprintf(`%d. %s:%d%s`, index, path, line, "\n"))
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index++
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} else {
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break
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}
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}
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fmt.Print(buffer.String())
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}
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// 抛出一个异常
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func Throw(exception interface{}) {
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panic(exception)
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}
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// try...catch...
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func TryCatch(try func(), catch ... func(exception interface{})) {
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if len(catch) > 0 {
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defer func() {
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if e := recover(); e != nil {
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catch[0](e)
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}
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}()
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}
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try()
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}
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// IsEmpty checks given value empty or not.
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// false: integer(0), bool(false), slice/map(len=0), nil;
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// true : other.
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//
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// 判断给定的变量是否为空。
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// 整型为0, 布尔为false, slice/map长度为0, 其他为nil的情况，都为空。
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// 为空时返回true，否则返回false。
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func IsEmpty(value interface{}) bool {
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return empty.IsEmpty(value)
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}
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