gotools/gopls/internal/golang/folding_range.go

type FoldingRangeInfo …

// FoldingRange gets all of the folding range for f.
func FoldingRange(ctx context.Context, snapshot *cache.Snapshot, fh file.Handle, lineFoldingOnly bool) (ranges []*FoldingRangeInfo, err error) { … }

// foldingRangeFunc calculates the line folding range for ast.Node n
func foldingRangeFunc(pgf *parsego.File, n ast.Node, lineFoldingOnly bool) *FoldingRangeInfo { … }

// getLineFoldingRange returns the folding range for nodes with parentheses/braces/brackets
// that potentially can take up multiple lines.
func getLineFoldingRange(pgf *parsego.File, open, close token.Pos, lineFoldingOnly bool) (token.Pos, token.Pos) { … }

// commentsFoldingRange returns the folding ranges for all comment blocks in file.
// The folding range starts at the end of the first line of the comment block, and ends at the end of the
// comment block and has kind protocol.Comment.
func commentsFoldingRange(pgf *parsego.File) (comments []*FoldingRangeInfo) { … }