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"""
.. codeauthor:: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>
"""
import decimal
from .._common import strip_ansi_escape
from .._const import DefaultValue, ParamKey
from ..error import TypeConversionError
from ._interface import AbstractValueConverter
class FloatConverter(AbstractValueConverter):
def __init__(self, value, params):
super().__init__(value, params)
self.float_class = self._params.get("float_type")
if self.float_class is None:
self.float_class = DefaultValue.FLOAT_TYPE
def force_convert(self):
if isinstance(self._value, self.float_class):
return self._value
if isinstance(self._value, float):
return self.float_class(str(self._value))
try:
return self.float_class(self._value)
except (TypeError, ValueError, decimal.InvalidOperation):
pass
if self._params.get(ParamKey.STRIP_ANSI_ESCAPE, DefaultValue.STRIP_ANSI_ESCAPE):
try:
return self.float_class(strip_ansi_escape(self._value))
except (TypeError, ValueError, decimal.InvalidOperation):
pass
raise TypeConversionError(f"failed to force_convert to float: type={type(self._value)}")
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