feat(core): implement core MEV bot functionality with market scanning and Uniswap V3 pricing

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

vendor/github.com/ethereum/go-verkle/config_ipa.go

@@ -0,0 +1,92 @@
+// This is free and unencumbered software released into the public domain.
+//
+// Anyone is free to copy, modify, publish, use, compile, sell, or
+// distribute this software, either in source code form or as a compiled
+// binary, for any purpose, commercial or non-commercial, and by any
+// means.
+//
+// In jurisdictions that recognize copyright laws, the author or authors
+// of this software dedicate any and all copyright interest in the
+// software to the public domain. We make this dedication for the benefit
+// of the public at large and to the detriment of our heirs and
+// successors. We intend this dedication to be an overt act of
+// relinquishment in perpetuity of all present and future rights to this
+// software under copyright law.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+//
+// For more information, please refer to <https://unlicense.org>
+
+package verkle
+
+import (
+	"sync"
+
+	"github.com/crate-crypto/go-ipa/ipa"
+)
+
+// EmptyCodeHashPoint is a cached point that is used to represent an empty code hash.
+// This value is initialized once in GetConfig().
+var (
+	EmptyCodeHashPoint           Point
+	EmptyCodeHashFirstHalfValue  Fr
+	EmptyCodeHashSecondHalfValue Fr
+)
+
+const (
+	CodeHashVectorPosition     = 3 // Defined by the spec.
+	EmptyCodeHashFirstHalfIdx  = CodeHashVectorPosition * 2
+	EmptyCodeHashSecondHalfIdx = EmptyCodeHashFirstHalfIdx + 1
+)
+
+var (
+	FrZero Fr
+	FrOne  Fr
+
+	cfg     *Config
+	onceCfg sync.Once
+)
+
+func init() {
+	FrZero.SetZero()
+	FrOne.SetOne()
+}
+
+type IPAConfig struct {
+	conf *ipa.IPAConfig
+}
+
+type Config = IPAConfig
+
+func GetConfig() *Config {
+	onceCfg.Do(func() {
+		conf, err := ipa.NewIPASettings()
+		if err != nil {
+			panic(err)
+		}
+		cfg = &IPAConfig{conf: conf}
+
+		// Initialize the empty code cached values.
+		values := make([][]byte, NodeWidth)
+		values[CodeHashVectorPosition] = EmptyCodeHash
+		var c1poly [NodeWidth]Fr
+		if _, err := fillSuffixTreePoly(c1poly[:], values[:NodeWidth/2]); err != nil {
+			panic(err)
+		}
+		EmptyCodeHashPoint = *cfg.CommitToPoly(c1poly[:], 0)
+		EmptyCodeHashFirstHalfValue = c1poly[EmptyCodeHashFirstHalfIdx]
+		EmptyCodeHashSecondHalfValue = c1poly[EmptyCodeHashSecondHalfIdx]
+	})
+	return cfg
+}
+
+func (conf *IPAConfig) CommitToPoly(poly []Fr, _ int) *Point {
+	ret := conf.conf.Commit(poly)
+	return &ret
+}