diagnostics_hierarchy

Function filter_hierarchy

Source 
pub fn filter_hierarchy<Key>(
    root_node: DiagnosticsHierarchy<Key>,
    hierarchy_matcher: &HierarchyMatcher,
) -> Option<DiagnosticsHierarchy<Key>>
where
    Key: AsRef<str>,
Expand description

Filters a diagnostics hierarchy using a set of path selectors and their associated property selectors.

If the return type is None that implies that the filter encountered no errors AND the tree was filtered to be empty at the end.