text stringlengths 0 828 |
|---|
raise NoConverterFoundForObjectType.create(conversion_finder, |
attr_value, |
desired_attr_type) |
else: |
# we can safely use the value: it is already of the correct type |
return attr_value" |
511,"def register_converter(self, converter: Converter[S, T]): |
"""""" |
Utility method to register any converter. Converters that support any type will be stored in the ""generic"" |
lists, and the others will be stored in front of the types they support |
:return: |
"""""" |
check_var(converter, var_types=Converter, var_name='converter') |
# (0) sanity check : check that parser handles jokers properly |
res = converter.is_able_to_convert_detailed(from_type=JOKER, to_type=JOKER, strict=True) |
if not (res[0] is True and res[1] is None and res[2] is None): |
raise ValueError('Converter ' + str(converter) + ' can not be registered since it does not handle the JOKER' |
' cases correctly') |
# compute all possible chains and save them |
generic_chains, generic_nonstrict_chains, specific_chains, specific_nonstrict_chains \ |
= self._create_all_new_chains(converter) |
self._generic_nonstrict_conversion_chains += generic_nonstrict_chains |
self._generic_conversion_chains += generic_chains |
self._specific_non_strict_conversion_chains += specific_nonstrict_chains |
self._specific_conversion_chains += specific_chains |
# sort all lists by length |
self._generic_nonstrict_conversion_chains = sorted(self._generic_nonstrict_conversion_chains, key=len, |
reverse=True) |
self._generic_conversion_chains = sorted(self._generic_conversion_chains, key=len, reverse=True) |
self._specific_non_strict_conversion_chains = sorted(self._specific_non_strict_conversion_chains, key=len, |
reverse=True) |
self._specific_conversion_chains = sorted(self._specific_conversion_chains, key=len, reverse=True)" |
512,"def _create_all_new_chains(self, converter) -> Tuple[List[Converter], List[Converter], |
List[Converter], List[Converter]]: |
"""""" |
Creates all specific and generic chains that may be built by adding this converter to the existing chains. |
:param converter: |
:return: generic_chains, generic_nonstrict_chains, specific_chains, specific_nonstrict_chains |
"""""" |
specific_chains, specific_nonstrict_chains, generic_chains, generic_nonstrict_chains = [], [], [], [] |
if converter.is_generic(): |
# the smaller chain : the singleton :) |
generic_chains.append(ConversionChain(initial_converters=[converter], strict_chaining=True)) |
else: |
specific_chains.append(ConversionChain(initial_converters=[converter], strict_chaining=True)) |
# 1) create new specific chains by adding this converter at the beginning or end of all *non-generic* ones |
# -- non-strict |
new_c_at_end_ns = [] |
new_c_at_beginning_ns = [] |
if not self.strict: |
# then there are non-strict chains already. Try to connect to them |
for existing_specific_nonstrict in self._specific_non_strict_conversion_chains: |
if converter.can_be_appended_to(existing_specific_nonstrict, strict=False): |
if ConversionChain.are_worth_chaining(existing_specific_nonstrict, converter): |
new_c_at_end_ns.append(ConversionChain.chain(existing_specific_nonstrict, converter, |
strict=False)) |
if existing_specific_nonstrict.can_be_appended_to(converter, strict=False): |
if ConversionChain.are_worth_chaining(converter, existing_specific_nonstrict): |
new_c_at_beginning_ns.append(ConversionChain.chain(converter, existing_specific_nonstrict, |
strict=False)) |
# -- strict |
new_c_at_end = [] |
new_c_at_beginning = [] |
for existing_specific in self._specific_conversion_chains: |
# first try *strict* mode |
if converter.can_be_appended_to(existing_specific, strict=True): |
if ConversionChain.are_worth_chaining(existing_specific, converter): |
new_c_at_end.append(ConversionChain.chain(existing_specific, converter, strict=True)) |
elif (not self.strict) and converter.can_be_appended_to(existing_specific, strict=False): |
if ConversionChain.are_worth_chaining(existing_specific, converter): |
new_c_at_end_ns.append(ConversionChain.chain(existing_specific, converter, strict=False)) |
if existing_specific.can_be_appended_to(converter, strict=True): |
if ConversionChain.are_worth_chaining(converter, existing_specific): |
# TODO this is where when chaining a generic to a specific, we would actually have to restrict it |
# note: but maybe we dont care since now this is checked and prevented in the convert() method |
new_c_at_beginning.append(ConversionChain.chain(converter, existing_specific, strict=True)) |
elif (not self.strict) and existing_specific.can_be_appended_to(converter, strict=False): |
if ConversionChain.are_worth_chaining(converter, existing_specific): |
# TODO this is where when chaining a generic to a specific, we would actually have to restrict it |
# note: but maybe we dont care since now this is checked and prevented in the convert() method |
new_c_at_beginning_ns.append(ConversionChain.chain(converter, existing_specific, strict=False)) |
# append to the right list depending on the nature of this converter |
if converter.is_generic(): |
generic_chains += new_c_at_end |
generic_nonstrict_chains += new_c_at_end_ns |
else: |
specific_chains += new_c_at_end |
specific_nonstrict_chains += new_c_at_end_ns |
# common for both types |
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