Function _make_labels_map

Lib/dis.py:850–863

(original_code, exception_entries=())

def _make_labels_map(original_code, exception_entries=()):
    jump_targets = set(findlabels(original_code))
    labels = set(jump_targets)
    for start, end, target, _, _ in exception_entries:
        labels.add(start)
        labels.add(end)
        labels.add(target)
    labels = sorted(labels)
    labels_map = {offset: i+1 for (i, offset) in enumerate(sorted(labels))}
    for e in exception_entries:
        e.start_label = labels_map[e.start]
        e.end_label = labels_map[e.end]
        e.target_label = labels_map[e.target]
    return labels_map

_NO_LINENO = '  --'