Iota Resets in Each Const Block

Why This Happens

Go's iota identifier increments by one for each constant in a const block and resets to 0 at the start of a new const block. If you split related constants into separate blocks, the numbering restarts, which can cause duplicate values and logic errors.

The Problem

const (
    StatusPending = iota // 0
    StatusActive         // 1
)

const (
    StatusClosed = iota // 0 again, not 2!
)

The Fix

const (
    StatusPending = iota // 0
    StatusActive         // 1
    StatusClosed         // 2
)

Step-by-Step Fix

1. 1

   Identify separate const blocks

   Find related iota constants that are split across multiple const blocks.

2. 2

   Merge into one block

   Combine all related constants into a single const block.

3. 3

   Verify values

   Print or test the constant values to confirm they are correct.