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postgres_exporter/tools/vendor/mvdan.cc/unparam/README.md
Will Rouesnel 5b9fea01ee Add cross-compilation Makefile targets and tar-based releases. 
Revamp the build system to be more inline with other Prometheus exporters.
Notably add Darwin and Windows build targets, and add support for releases
using tar files.
2017-11-30 13:17:13 +10:00

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unparam

Build Status

go get -u mvdan.cc/unparam

Reports unused function parameters and results in your code.

To minimise false positives, it ignores certain cases such as:

  • Exported functions (by default, see -exported)
  • Unnamed and underscore parameters
  • Funcs that may satisfy an interface
  • Funcs that may satisfy a function signature
  • Funcs that are stubs (empty, only error, immediately return, etc)
  • Funcs that have multiple implementations via build tags

It also reports results that always return the same value, parameters that always receive the same value, and results that are never used. In the last two cases, a minimum number of calls is required to ensure that the warnings are useful.

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