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60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Package tracers contains the actual JavaScript tracer assets.
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package tracers
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import (
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"embed"
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"io/fs"
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"strings"
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"unicode"
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)
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//go:embed *.js
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var files embed.FS
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// Load reads the built-in JS tracer files embedded in the binary and
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// returns a mapping of tracer name to source.
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func Load() (map[string]string, error) {
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var assetTracers = make(map[string]string)
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err := fs.WalkDir(files, ".", func(path string, d fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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if d.IsDir() {
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return nil
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}
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b, err := fs.ReadFile(files, path)
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if err != nil {
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return err
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}
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name := camel(strings.TrimSuffix(path, ".js"))
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assetTracers[name] = string(b)
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return nil
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})
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return assetTracers, err
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}
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// camel converts a snake cased input string into a camel cased output.
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func camel(str string) string {
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pieces := strings.Split(str, "_")
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for i := 1; i < len(pieces); i++ {
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pieces[i] = string(unicode.ToUpper(rune(pieces[i][0]))) + pieces[i][1:]
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}
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return strings.Join(pieces, "")
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}
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