Method _format

src/_pytest/_io/pprint.py:94–128

(
        self,
        object: Any,
        stream: IO[str],
        indent: int,
        allowance: int,
        context: set[int],
        level: int,
    )

        return sio.getvalue()

    def _format(
        self,
        object: Any,
        stream: IO[str],
        indent: int,
        allowance: int,
        context: set[int],
        level: int,
    ) -> None:
        objid = id(object)
        if objid in context:
            stream.write(_recursion(object))
            return

        p = self._dispatch.get(type(object).__repr__, None)
        if p is not None:
            context.add(objid)
            p(self, object, stream, indent, allowance, context, level + 1)
            context.remove(objid)
        elif (
            _dataclasses.is_dataclass(object)
            and not isinstance(object, type)
            and object.__dataclass_params__.repr  class="cm"># type:ignore[attr-defined]
            and
            class="cm"># Check dataclass has generated repr method.
            hasattr(object.__repr__, class="st">"__wrapped__")
            and class="st">"__create_fn__" in object.__repr__.__wrapped__.__qualname__
        ):
            context.add(objid)
            self._pprint_dataclass(
                object, stream, indent, allowance, context, level + 1
            )
            context.remove(objid)
        else:
            stream.write(self._repr(object, context, level))

    def _pprint_dataclass(
        self,