gotools/gopls/internal/golang/pkgdoc.go

// DocFragment finds the package and (optionally) symbol identified by
// the current selection, and returns the package path and the
// optional symbol URL fragment (e.g. "#Buffer.Len") for a symbol,
// along with a title for the code action.
//
// It is called once to offer the code action, and again when the
// command is executed. This is slightly inefficient but ensures that
// the title and package/symbol logic are consistent in all cases.
//
// It returns zeroes if there is nothing to see here (e.g. reference to a builtin).
func DocFragment(pkg *cache.Package, pgf *parsego.File, start, end token.Pos) (pkgpath PackagePath, fragment, title string) { … }

type thing …

func thingAtPoint(pkg *cache.Package, pgf *parsego.File, start, end token.Pos) thing { … }

type Web …

// PackageDocHTML formats the package documentation page.
//
// The posURL function returns a URL that when visited, has the side
// effect of causing gopls to direct the client editor to navigate to
// the specified file/line/column position, in UTF-8 coordinates.
func PackageDocHTML(viewID string, pkg *cache.Package, web Web) ([]byte, error) { … }

// tupleVariables returns a go1.23 iterator over the variables of a tuple type.
//
// Example: for v := range tuple.Variables() { ... }
// TODO(adonovan): use t.Variables in go1.24.
func tupleVariables(t *types.Tuple) iter.Seq[*types.Var] { … }