Using go fix to modernize Go code
7 days ago
- #code modernization
- #static analysis
- #Go programming
- Go 1.26 introduces a completely rewritten `go fix` subcommand to modernize Go code by leveraging newer language and library features.
- `go fix` can be run over entire projects to update source files, with options to preview changes (`-diff`) and list available fixers (`go tool fix help`).
- Modernizers in `go fix` simplify code by replacing older patterns with newer idioms, such as using `strings.Cut` instead of `strings.Index` and slicing.
- The Go analysis framework underpins `go fix`, enabling scalable static analysis across packages and integration with tools like `gopls` and `go vet`.
- Self-service paradigms are being explored to allow developers to define custom modernizers for their APIs, reducing reliance on centralized updates.