eth/tracers: make native 4byte default, remove js version (#23916)

eth/tracers/js/internal/tracers/4byte_tracer.js

-// Copyright 2017 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-// 4byteTracer searches for 4byte-identifiers, and collects them for post-processing.
-// It collects the methods identifiers along with the size of the supplied data, so
-// a reversed signature can be matched against the size of the data.
-//
-// Example:
-//   > debug.traceTransaction( "0x214e597e35da083692f5386141e69f47e973b2c56e7a8073b1ea08fd7571e9de", {tracer: "4byteTracer"})
-//   {
-//     0x27dc297e-128: 1,
-//     0x38cc4831-0: 2,
-//     0x524f3889-96: 1,
-//     0xadf59f99-288: 1,
-//     0xc281d19e-0: 1
-//   }
-{
-	// ids aggregates the 4byte ids found.
-	ids : {},
-
-	// store save the given indentifier and datasize.
-	store: function(id, size){
-		var key = "" + toHex(id) + "-" + size;
-		this.ids[key] = this.ids[key] + 1 || 1;
-	},
-
-	enter: function(frame, log) {
-		// Skip any pre-compile invocations, those are just fancy opcodes
-		if (isPrecompiled(frame.getTo())) {
-			return;
-		}
-		var type = frame.getType()
-		if (type !== "CALL" && type !== "STATICCALL" &&
-			type !== "DELEGATECALL" && type !== "CALLCODE"){
-			return;
-		}
-		var input = frame.getInput()
-		if (input.length >= 4) {
-			this.store(slice(input, 0, 4), input.length - 4);
-		}
-	},
-
-	exit: function(frameResult) {},
-
-	// fault is invoked when the actual execution of an opcode fails.
-	fault: function(log, db) {},
-
-	// result is invoked when all the opcodes have been iterated over and returns
-	// the final result of the tracing.
-	result: function(ctx) {
-		// Save the outer calldata also
-		if (ctx.input.length >= 4) {
-			this.store(slice(ctx.input, 0, 4), ctx.input.length-4)
-		}
-		return this.ids;
-	},
-}

eth/tracers/js/internal/tracers/assets.go

 // Code generated by go-bindata. DO NOT EDIT.
 // sources:
-// 4byte_tracer.js (2.375kB)
 // 4byte_tracer_legacy.js (2.933kB)
 // bigram_tracer.js (1.712kB)
 // call_tracer_js.js (3.497kB)
@@ -79,26 +78,6 @@ func (fi bindataFileInfo) Sys() interface{} {
 	return nil
 }
 
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-
-func _4byte_tracerJsBytes() ([]byte, error) {
-	return bindataRead(
-		__4byte_tracerJs,
-		"4byte_tracer.js",
-	)
-}
-
-func _4byte_tracerJs() (*asset, error) {
-	bytes, err := _4byte_tracerJsBytes()
-	if err != nil {
-		return nil, err
-	}
-
-	info := bindataFileInfo{name: "4byte_tracer.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
-	a := &asset{bytes: bytes, info: info, digest: [32]uint8{0xdb, 0xff, 0x9f, 0xb0, 0x9e, 0x1a, 0xd7, 0xd3, 0xcb, 0xf6, 0x6e, 0xf5, 0xf7, 0xbc, 0xe7, 0xbc, 0xd6, 0x7c, 0x37, 0x16, 0xd7, 0x4f, 0x85, 0xb3, 0x1f, 0xfd, 0x66, 0x3e, 0x91, 0xed, 0x86, 0x27}}
-	return a, nil
-}
-
 var __4byte_tracer_legacyJs = 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
 func _4byte_tracer_legacyJsBytes() ([]byte, error) {
@@ -390,7 +369,6 @@ func AssetNames() []string {
 
 // _bindata is a table, holding each asset generator, mapped to its name.
 var _bindata = map[string]func() (*asset, error){
-	"4byte_tracer.js":        _4byte_tracerJs,
 	"4byte_tracer_legacy.js": _4byte_tracer_legacyJs,
 	"bigram_tracer.js":       bigram_tracerJs,
 	"call_tracer_js.js":      call_tracer_jsJs,
@@ -447,7 +425,6 @@ type bintree struct {
 }
 
 var _bintree = &bintree{nil, map[string]*bintree{
-	"4byte_tracer.js":        {_4byte_tracerJs, map[string]*bintree{}},
 	"4byte_tracer_legacy.js": {_4byte_tracer_legacyJs, map[string]*bintree{}},
 	"bigram_tracer.js":       {bigram_tracerJs, map[string]*bintree{}},
 	"call_tracer_js.js":      {call_tracer_jsJs, map[string]*bintree{}},

eth/tracers/native/4byte.go

@@ -29,7 +29,7 @@ import (
 )
 
 func init() {
-	register("4byte", newFourByteTracer)
+	register("4byteTracer", newFourByteTracer)
 }
 
 // fourByteTracer searches for 4byte-identifiers, and collects them for post-processing.
@@ -37,7 +37,7 @@ func init() {
 // a reversed signature can be matched against the size of the data.
 //
 // Example:
-//   > debug.traceTransaction( "0x214e597e35da083692f5386141e69f47e973b2c56e7a8073b1ea08fd7571e9de", {tracer: "4byte"})
+//   > debug.traceTransaction( "0x214e597e35da083692f5386141e69f47e973b2c56e7a8073b1ea08fd7571e9de", {tracer: "4byteTracer"})
 //   {
 //     0x27dc297e-128: 1,
 //     0x38cc4831-0: 2,