gitlab.com/flarenetwork/coreth@v0.1.1/eth/tracers/tracers.go (about)

     1  // (c) 2019-2020, Ava Labs, Inc.
     2  //
     3  // This file is a derived work, based on the go-ethereum library whose original
     4  // notices appear below.
     5  //
     6  // It is distributed under a license compatible with the licensing terms of the
     7  // original code from which it is derived.
     8  //
     9  // Much love to the original authors for their work.
    10  // **********
    11  // Copyright 2017 The go-ethereum Authors
    12  // This file is part of the go-ethereum library.
    13  //
    14  // The go-ethereum library is free software: you can redistribute it and/or modify
    15  // it under the terms of the GNU Lesser General Public License as published by
    16  // the Free Software Foundation, either version 3 of the License, or
    17  // (at your option) any later version.
    18  //
    19  // The go-ethereum library is distributed in the hope that it will be useful,
    20  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    21  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    22  // GNU Lesser General Public License for more details.
    23  //
    24  // You should have received a copy of the GNU Lesser General Public License
    25  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    26  
    27  // Package tracers is a collection of JavaScript transaction tracers.
    28  package tracers
    29  
    30  import (
    31  	"strings"
    32  	"unicode"
    33  
    34  	"gitlab.com/flarenetwork/coreth/eth/tracers/internal/tracers"
    35  )
    36  
    37  // all contains all the built in JavaScript tracers by name.
    38  var all = make(map[string]string)
    39  
    40  // camel converts a snake cased input string into a camel cased output.
    41  func camel(str string) string {
    42  	pieces := strings.Split(str, "_")
    43  	for i := 1; i < len(pieces); i++ {
    44  		pieces[i] = string(unicode.ToUpper(rune(pieces[i][0]))) + pieces[i][1:]
    45  	}
    46  	return strings.Join(pieces, "")
    47  }
    48  
    49  // init retrieves the JavaScript transaction tracers included in go-ethereum.
    50  func init() {
    51  	for _, file := range tracers.AssetNames() {
    52  		name := camel(strings.TrimSuffix(file, ".js"))
    53  		all[name] = string(tracers.MustAsset(file))
    54  	}
    55  }
    56  
    57  // tracer retrieves a specific JavaScript tracer by name.
    58  func tracer(name string) (string, bool) {
    59  	if tracer, ok := all[name]; ok {
    60  		return tracer, true
    61  	}
    62  	return "", false
    63  }