gotools/gopls/internal/util/astutil/purge.go

// PurgeFuncBodies returns a copy of src in which the contents of each
// outermost {...} region except struct and interface types have been
// deleted. This reduces the amount of work required to parse the
// top-level declarations.
//
// PurgeFuncBodies does not preserve newlines or position information.
// Also, if the input is invalid, parsing the output of
// PurgeFuncBodies may result in a different tree due to its effects
// on parser error recovery.
func PurgeFuncBodies(src []byte) []byte { … }