iotyper

A static analysis tool for Go that detects iota usage without explicit type specification.

Overview

iotyper is a golangci-lint plugin that ensures iota constants have explicit types to improve code clarity and type safety.

Usage

What Gets Flagged

iotyper reports when iota is used in const declarations without an explicit type:

// ❌ Bad: will be flagged
const (
    StatusPending = iota  // Error: iota used without type specification
    StatusActive
    StatusClosed
)

How to Fix

Add an explicit type to your iota declaration:

// ✅ Good: type explicitly specified
const (
    StatusPending int = iota
    StatusActive
    StatusClosed
)

Suppressing False Positives

You can suppress the linter using //nolint comments:

const (
    Value1 = iota  //nolint:iotyper
    Value2 = iota  //nolint:all
)

License

See LICENSE file for details.