Class TypeHierarchyContribution

Extracts the type hierarchy direction from the argument. If the direction cannot be extracted, returns with the Children as the default type.

Enabled if the current editor has the languageId or the Type Hierarchy widget is the active one.

Flips the hierarchy direction in the Type Hierarchy view, if it is active and has a valid root. Otherwise, calculates the type hierarchy based on the selection of the current editor.