postgres_exporter/tools/vendor/github.com/mvdan/unparam/README.md

unparam

go get -u github.com/mvdan/unparam

Reports unused function parameters in your code.

To minimise false positives, it ignores:

• Unnamed and underscore parameters
• Funcs whose signature matches a reachable func type
• Funcs whose signature matches a reachable interface method
• Funcs that have empty bodies
• Funcs that will almost immediately panic or return constants

False positives can still occur by design. The aim of the tool is to be as precise as possible - if you find any, file a bug.

Note that "reachable" means func signatures found in top-level declarations in each package and all of its direct dependencies. The tool ignores transitive dependencies and local signatures.