Files
mev-beta/orig/pkg/arbitrage/flash_swap_utils.go
Administrator 803de231ba feat: create v2-prep branch with comprehensive planning
Restructured project for V2 refactor:

**Structure Changes:**
- Moved all V1 code to orig/ folder (preserved with git mv)
- Created docs/planning/ directory
- Added orig/README_V1.md explaining V1 preservation

**Planning Documents:**
- 00_V2_MASTER_PLAN.md: Complete architecture overview
  - Executive summary of critical V1 issues
  - High-level component architecture diagrams
  - 5-phase implementation roadmap
  - Success metrics and risk mitigation

- 07_TASK_BREAKDOWN.md: Atomic task breakdown
  - 99+ hours of detailed tasks
  - Every task < 2 hours (atomic)
  - Clear dependencies and success criteria
  - Organized by implementation phase

**V2 Key Improvements:**
- Per-exchange parsers (factory pattern)
- Multi-layer strict validation
- Multi-index pool cache
- Background validation pipeline
- Comprehensive observability

**Critical Issues Addressed:**
- Zero address tokens (strict validation + cache enrichment)
- Parsing accuracy (protocol-specific parsers)
- No audit trail (background validation channel)
- Inefficient lookups (multi-index cache)
- Stats disconnection (event-driven metrics)

Next Steps:
1. Review planning documents
2. Begin Phase 1: Foundation (P1-001 through P1-010)
3. Implement parsers in Phase 2
4. Build cache system in Phase 3
5. Add validation pipeline in Phase 4
6. Migrate and test in Phase 5

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-10 10:14:26 +01:00

39 lines
938 B
Go

package arbitrage
import (
"math/big"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
)
type flashSwapCallback struct {
TokenPath []common.Address
PoolPath []common.Address
Fees []*big.Int
MinAmountOut *big.Int
}
func encodeFlashSwapCallback(tokenPath []common.Address, poolPath []common.Address, fees []*big.Int, minAmountOut *big.Int) ([]byte, error) {
tupleType, err := abi.NewType("tuple", "flashSwapCallback", []abi.ArgumentMarshaling{
{Name: "tokenPath", Type: "address[]"},
{Name: "poolPath", Type: "address[]"},
{Name: "fees", Type: "uint256[]"},
{Name: "minAmountOut", Type: "uint256"},
})
if err != nil {
return nil, err
}
arguments := abi.Arguments{{Type: tupleType}}
callback := flashSwapCallback{
TokenPath: tokenPath,
PoolPath: poolPath,
Fees: fees,
MinAmountOut: minAmountOut,
}
return arguments.Pack(callback)
}