def _prepare_for_rebinding(bb):
"""Replaces `bb` with semantically equivalent version for rebinding."""
bb = compiler.normalize_all_equal_bit(bb)
bb, _ = tree_transformations.remove_mapped_or_applied_identity(bb)
bb = transformations.to_call_dominant(bb)
bb, _ = tree_transformations.remove_unused_block_locals(bb)
return bb
def _remove_functional_symbol_bindings(comp):
"""Removes symbol bindings which contain functional types."""
comp, refs_renamed = tree_transformations.uniquify_reference_names(
comp)
comp, lambdas_replaced = tree_transformations.replace_called_lambda_with_block(
comp)
comp, selections_inlined = tree_transformations.inline_selections_from_tuple(
comp)
if selections_inlined:
comp, _ = tree_transformations.uniquify_reference_names(comp)
comp, functions_inlined = _inline_functions(comp)
comp, locals_removed = tree_transformations.remove_unused_block_locals(
comp)
modified = (refs_renamed or lambdas_replaced or selections_inlined
or functions_inlined or locals_removed)
return comp, modified
