missing-unlock-before-return.yml

rules:
- id: missing-unlock-before-return
  patterns:
    - pattern-either:
      - pattern: panic(...)
      - pattern: return ...
    - pattern-inside: |
        $T.Lock()
        ...
        $T.Unlock()
    - pattern-not-inside: |
        $T.Unlock()
        ...
    - pattern-not-inside: |
        defer $T.Unlock()
        ...
    - pattern-not-inside: |
        $FOO(..., ..., func(...) { 
            ... 
        })
  message: |
    Missing mutex unlock before returning from a function. 
    This could result in panics resulting from double lock operations
  languages: [go]
  severity: ERROR