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# Magic number for the Rust proxy to call using the same mechanism as every other method,
# to free the callback once it's dropped by Rust.
_UNIFFI_IDX_CALLBACK_FREE = 0
# Return codes for callback calls
_UNIFFI_CALLBACK_SUCCESS = 0
_UNIFFI_CALLBACK_ERROR = 1
_UNIFFI_CALLBACK_UNEXPECTED_ERROR = 2
class _UniffiCallbackInterfaceFfiConverter:
_handle_map = _UniffiHandleMap()
@classmethod
def lift(cls, handle):
return cls._handle_map.get(handle)
@classmethod
def read(cls, buf):
handle = buf.read_u64()
cls.lift(handle)
@classmethod
def check_lower(cls, cb):
pass
@classmethod
def lower(cls, cb):
handle = cls._handle_map.insert(cb)
return handle
@classmethod
def write(cls, cb, buf):
buf.write_u64(cls.lower(cb))