github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/eth/tracers/tracers.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 12:09:39</date>
    10  //</624342638417416192>
    11  
    12  
    13  //包跟踪程序是JavaScript事务跟踪程序的集合。
    14  package tracers
    15  
    16  import (
    17  	"strings"
    18  	"unicode"
    19  
    20  	"github.com/ethereum/go-ethereum/eth/tracers/internal/tracers"
    21  )
    22  
    23  //全部按名称包含所有内置的javascript跟踪程序。
    24  var all = make(map[string]string)
    25  
    26  //camel将snake-cased输入字符串转换为camel-cased输出。
    27  func camel(str string) string {
    28  	pieces := strings.Split(str, "_")
    29  	for i := 1; i < len(pieces); i++ {
    30  		pieces[i] = string(unicode.ToUpper(rune(pieces[i][0]))) + pieces[i][1:]
    31  	}
    32  	return strings.Join(pieces, "")
    33  }
    34  
    35  //init检索go-ethereum中包含的javascript事务跟踪程序。
    36  func init() {
    37  	for _, file := range tracers.AssetNames() {
    38  		name := camel(strings.TrimSuffix(file, ".js"))
    39  		all[name] = string(tracers.MustAsset(file))
    40  	}
    41  }
    42  
    43  //跟踪程序按名称检索特定的javascript跟踪程序。
    44  func tracer(name string) (string, bool) {
    45  	if tracer, ok := all[name]; ok {
    46  		return tracer, true
    47  	}
    48  	return "", false
    49  }
    50