rules:
  - id: use-math-bits
    patterns:
        - pattern-either:
              - pattern: $X >> $N | $X << (8 - $N)
              - pattern: $X << $N | $X >> (8 - $N)
              - pattern: $X >> (8 - $N) | $X << $N
              - pattern: $X << (8 - $N) | $X >> $N
              - pattern: $X >> $N | $X << (16 - $N)
              - pattern: $X << $N | $X >> (16 - $N)
              - pattern: $X >> (16 - $N) | $X << $N
              - pattern: $X << (16 - $N) | $X >> $N
              - pattern: $X >> $N | $X << (32 - $N)
              - pattern: $X << $N | $X >> (32 - $N)
              - pattern: $X >> (32 - $N) | $X << $N
              - pattern: $X << (32 - $N) | $X >> $N
              - pattern: $X >> $N | $X << (64 - $N)
              - pattern: $X << $N | $X >> (64 - $N)
              - pattern: $X >> (64 - $N) | $X << $N
              - pattern: $X << (64 - $N) | $X >> $N
    message: "Try using math/bits instead"
    languages: [go]
    severity: ERROR