Function findEnclosingNode

internal/format/span.go:20–44

** find node that fully contains given text range */

(r core.TextRange, sourceFile *ast.SourceFile)

/** find node that fully contains given text range */
func findEnclosingNode(r core.TextRange, sourceFile *ast.SourceFile) *ast.Node {
	var find func(*ast.Node) *ast.Node
	find = func(n *ast.Node) *ast.Node {
		var candidate *ast.Node
		n.ForEachChild(func(c *ast.Node) bool {
			if c.Flags&ast.NodeFlagsReparsed != 0 {
				return false
			}
			if r.ContainedBy(withTokenStart(c, sourceFile)) {
				candidate = c
				return true
			}
			return false
		})
		if candidate != nil {
			result := find(candidate)
			if result != nil {
				return result
			}
		}

		return n
	}
	return find(sourceFile.AsNode())
}

/**
 * Start of the original range might fall inside the comment - scanner will not yield appropriate results