gotools/gopls/internal/golang/completion/package.go

// packageClauseCompletions offers completions for a package declaration when
// one is not present in the given file.
func packageClauseCompletions(ctx context.Context, snapshot *cache.Snapshot, fh file.Handle, position protocol.Position) ([]CompletionItem, *Selection, error) { … }

// packageCompletionSurrounding returns surrounding for package completion if a
// package completions can be suggested at a given cursor offset. A valid location
// for package completion is above any declarations or import statements.
func packageCompletionSurrounding(pgf *parsego.File, offset int) (*Selection, error) { … }

func cursorInComment(file *token.File, cursor token.Pos, src []byte) bool { … }

// packageNameCompletions returns name completions for a package clause using
// the current name as prefix.
func (c *completer) packageNameCompletions(ctx context.Context, fileURI protocol.DocumentURI, name *ast.Ident) error { … }

// packageSuggestions returns a list of packages from workspace packages that
// have the given prefix and are used in the same directory as the given
// file. This also includes test packages for these packages (<pkg>_test) and
// the directory name itself.
func packageSuggestions(ctx context.Context, snapshot *cache.Snapshot, fileURI protocol.DocumentURI, prefix string) (packages []candidate, err error) { … }

// isValidDirName checks whether the passed directory name can be used in
// a package path. Requirements for a package path can be found here:
// https://golang.org/ref/mod#go-mod-file-ident.
func isValidDirName(dirName string) bool { … }

// convertDirNameToPkgName converts a valid directory name to a valid package name.
// It leaves only letters and digits. All letters are mapped to lower case.
func convertDirNameToPkgName(dirName string) golang.PackageName { … }

func isLetter(ch rune) bool { … }

func isDigit(ch rune) bool { … }

func isAllowedPunctuation(ch rune) bool { … }