gotools/gopls/internal/golang/lines.go

// canSplitLines checks whether we can split lists of elements inside
// an enclosing curly bracket/parens into separate lines.
func canSplitLines(file *ast.File, fset *token.FileSet, start, end token.Pos) (string, bool, error) { … }

// canJoinLines checks whether we can join lists of elements inside an
// enclosing curly bracket/parens into a single line.
func canJoinLines(file *ast.File, fset *token.FileSet, start, end token.Pos) (string, bool, error) { … }

// canSplitJoinLines determines whether we should split/join the lines or not.
func canSplitJoinLines(items []ast.Node, comments []*ast.CommentGroup) bool { … }

// splitLines is a singleFile fixer.
func splitLines(fset *token.FileSet, start, end token.Pos, src []byte, file *ast.File, _ *types.Package, _ *types.Info) (*token.FileSet, *analysis.SuggestedFix, error) { … }

// joinLines is a singleFile fixer.
func joinLines(fset *token.FileSet, start, end token.Pos, src []byte, file *ast.File, _ *types.Package, _ *types.Info) (*token.FileSet, *analysis.SuggestedFix, error) { … }

// processLines is the common operation for both split and join lines because this split/join operation is
// essentially a transformation of the separating whitespace.
func processLines(fset *token.FileSet, items []ast.Node, comments []*ast.CommentGroup, src []byte, braceOpen, braceClose token.Pos, sep, prefix, suffix, indent string) *analysis.SuggestedFix { … }

// findSplitJoinTarget returns the first curly bracket/parens that encloses the current cursor.
func findSplitJoinTarget(fset *token.FileSet, file *ast.File, src []byte, start, end token.Pos) (itemType string, items []ast.Node, comments []*ast.CommentGroup, indent string, open, close token.Pos) { … }