Files
mev-beta/orig/pkg/errors/context.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

109 lines
2.3 KiB
Go

package errors
import (
"context"
"fmt"
"runtime"
)
// WrapContextError wraps a context error with detailed information about the operation
// that failed, including the function name, parameters, and call location.
//
// Example usage:
//
// if ctx.Err() != nil {
// return errors.WrapContextError(ctx.Err(), "fetchTransactionReceipt",
// map[string]interface{}{
// "txHash": txHash.Hex(),
// "attempt": attempt,
// "maxRetries": maxRetries,
// })
// }
func WrapContextError(err error, functionName string, params map[string]interface{}) error {
if err == nil {
return nil
}
// Get caller information
pc, file, line, ok := runtime.Caller(1)
funcName := "unknown"
if ok {
fn := runtime.FuncForPC(pc)
if fn != nil {
funcName = fn.Name()
}
}
// Build detailed error message
msg := fmt.Sprintf("context error in %s", functionName)
// Add parameters
if len(params) > 0 {
msg += " ["
first := true
for key, value := range params {
if !first {
msg += ", "
}
msg += fmt.Sprintf("%s=%v", key, value)
first = false
}
msg += "]"
}
// Add caller location
if ok {
msg += fmt.Sprintf(" (at %s:%d in %s)", file, line, funcName)
}
// Determine context error type
var errType string
switch err {
case context.Canceled:
errType = "context canceled"
case context.DeadlineExceeded:
errType = "context deadline exceeded"
default:
errType = fmt.Sprintf("%v", err)
}
return fmt.Errorf("%s: %s", msg, errType)
}
// WrapContextErrorf wraps a context error with a formatted message and parameters
func WrapContextErrorf(err error, format string, args ...interface{}) error {
if err == nil {
return nil
}
// Get caller information
pc, file, line, ok := runtime.Caller(1)
funcName := "unknown"
if ok {
fn := runtime.FuncForPC(pc)
if fn != nil {
funcName = fn.Name()
}
}
msg := fmt.Sprintf(format, args...)
// Add caller location
if ok {
msg += fmt.Sprintf(" (at %s:%d in %s)", file, line, funcName)
}
// Determine context error type
var errType string
switch err {
case context.Canceled:
errType = "context canceled"
case context.DeadlineExceeded:
errType = "context deadline exceeded"
default:
errType = fmt.Sprintf("%v", err)
}
return fmt.Errorf("%s: %s", msg, errType)
}