Port caller.py to new _result.py module

src/pluggy/callers.py

@@ -2,83 +2,8 @@
 Call loop machinery
 """
 import sys
-import warnings
 
-_py3 = sys.version_info > (3, 0)
-
-
-if not _py3:
-    exec(
-        """
-def _reraise(cls, val, tb):
-    raise cls, val, tb
-"""
-    )
-
-
-def _raise_wrapfail(wrap_controller, msg):
-    co = wrap_controller.gi_code
-    raise RuntimeError(
-        "wrap_controller at %r %s:%d %s"
-        % (co.co_name, co.co_filename, co.co_firstlineno, msg)
-    )
-
-
-class HookCallError(Exception):
-    """ Hook was called wrongly. """
-
-
-class _Result(object):
-    def __init__(self, result, excinfo):
-        self._result = result
-        self._excinfo = excinfo
-
-    @property
-    def excinfo(self):
-        return self._excinfo
-
-    @property
-    def result(self):
-        """Get the result(s) for this hook call (DEPRECATED in favor of ``get_result()``)."""
-        msg = "Use get_result() which forces correct exception handling"
-        warnings.warn(DeprecationWarning(msg), stacklevel=2)
-        return self._result
-
-    @classmethod
-    def from_call(cls, func):
-        __tracebackhide__ = True
-        result = excinfo = None
-        try:
-            result = func()
-        except BaseException:
-            excinfo = sys.exc_info()
-
-        return cls(result, excinfo)
-
-    def force_result(self, result):
-        """Force the result(s) to ``result``.
-
-        If the hook was marked as a ``firstresult`` a single value should
-        be set otherwise set a (modified) list of results. Any exceptions
-        found during invocation will be deleted.
-        """
-        self._result = result
-        self._excinfo = None
-
-    def get_result(self):
-        """Get the result(s) for this hook call.
-
-        If the hook was marked as a ``firstresult`` only a single value
-        will be returned otherwise a list of results.
-        """
-        __tracebackhide__ = True
-        if self._excinfo is None:
-            return self._result
-        else:
-            ex = self._excinfo
-            if _py3:
-                raise ex[1].with_traceback(ex[2])
-            _reraise(*ex)  # noqa
+from ._result import HookCallError, _Result, _raise_wrapfail
 
 
 def _multicall(hook_impls, caller_kwargs, firstresult=False):