Add isfuture() and iscoroutine() optimization

setup.py

@@ -58,6 +58,10 @@ setup(name="dependency-injector",
                     ["src/dependency_injector/providers.c"],
                     define_macros=list(defined_macros.items()),
                     extra_compile_args=["-O2"]),
+          Extension("dependency_injector._cwiring",
+                    ["src/dependency_injector/_cwiring.c"],
+                    define_macros=list(defined_macros.items()),
+                    extra_compile_args=["-O2"]),
       ],
       install_requires=requirements,
       extras_require={

src/dependency_injector/_cwiring.pxd

@@ -0,0 +1 @@
+"""Wiring optimizations module."""

src/dependency_injector/_cwiring.pyx

@@ -0,0 +1,51 @@
+"""Wiring optimizations module."""
+
+import copy
+import functools
+import sys
+import types
+
+from . import providers
+
+
+if sys.version_info[0] == 3:  # pragma: no cover
+    CLASS_TYPES = (type,)
+else:  # pragma: no cover
+    CLASS_TYPES = (type, types.ClassType)
+
+    copy._deepcopy_dispatch[types.MethodType] = \
+        lambda obj, memo: type(obj)(obj.im_func,
+                                    copy.deepcopy(obj.im_self, memo),
+                                    obj.im_class)
+
+
+def _get_sync_patched(fn):
+    @functools.wraps(fn)
+    def _patched(*args, **kwargs):
+        cdef dict to_inject = kwargs.copy()
+        for injection, provider in _patched.__injections__.items():
+            if injection not in kwargs \
+                    or _is_fastapi_default_arg_injection(injection, kwargs):
+                to_inject[injection] = provider()
+
+        result = fn(*args, **to_inject)
+
+        for injection, provider in _patched.__closing__.items():
+            if injection in kwargs \
+                    and not _is_fastapi_default_arg_injection(injection, kwargs):
+                continue
+            if not isinstance(provider, providers.Resource):
+                continue
+            provider.shutdown()
+
+        return result
+    return _patched
+
+
+cdef bint _is_fastapi_default_arg_injection(object injection, dict kwargs):
+    """Check if injection is FastAPI injection of the default argument."""
+    return injection in kwargs and _is_marker(kwargs[injection])
+
+
+cdef bint _is_marker(object instance):
+    return getattr(instance, "__IS_MARKER__", False) is True

src/dependency_injector/providers.pxd

@@ -10,6 +10,10 @@ import functools
 cimport cython
 
 
+cdef set __iscoroutine_typecache
+cdef tuple __COROUTINE_TYPES
+
+
 # Base providers
 cdef class Provider(object):
     cdef tuple __overridden
@@ -551,19 +555,19 @@ cdef inline object __call(
         tuple injection_kwargs,
         int injection_kwargs_len,
 ):
-    args = __provide_positional_args(
+    cdef object args = __provide_positional_args(
         context_args,
         injection_args,
         injection_args_len,
     )
-    kwargs = __provide_keyword_args(
+    cdef object kwargs = __provide_keyword_args(
         context_kwargs,
         injection_kwargs,
         injection_kwargs_len,
     )
 
-    is_future_args = __is_future_or_coroutine(args)
-    is_future_kwargs = __is_future_or_coroutine(kwargs)
+    cdef bint is_future_args = __is_future_or_coroutine(args)
+    cdef bint is_future_kwargs = __is_future_or_coroutine(kwargs)
 
     if is_future_args or is_future_kwargs:
         future_args = args if is_future_args else __future_result(args)
@@ -643,9 +647,26 @@ cdef inline object __factory_call(Factory self, tuple args, dict kwargs):
 
 
 cdef inline bint __is_future_or_coroutine(object instance):
-    if asyncio is None:
+    return __isfuture(instance) or __iscoroutine(instance)
+
+
+cdef inline bint __isfuture(object obj):
+    return hasattr(obj.__class__, "_asyncio_future_blocking") and obj._asyncio_future_blocking is not None
+
+
+cdef inline bint __iscoroutine(object obj):
+    if type(obj) in __iscoroutine_typecache:
+        return True
+
+    if isinstance(obj, __COROUTINE_TYPES):
+        # Just in case we don't want to cache more than 100
+        # positive types.  That shouldn't ever happen, unless
+        # someone stressing the system on purpose.
+        if len(__iscoroutine_typecache) < 100:
+            __iscoroutine_typecache.add(type(obj))
+        return True
+    else:
         return False
-    return asyncio.isfuture(instance) or asyncio.iscoroutine(instance)
 
 
 cdef inline object __future_result(object instance):

src/dependency_injector/providers.pyx

@@ -145,6 +145,9 @@ cdef int ASYNC_MODE_UNDEFINED = 0
 cdef int ASYNC_MODE_ENABLED = 1
 cdef int ASYNC_MODE_DISABLED = 2
 
+cdef set __iscoroutine_typecache = set()
+cdef tuple __COROUTINE_TYPES = asyncio.coroutines._COROUTINE_TYPES if asyncio else tuple()
+
 
 cdef class Provider(object):
     """Base provider class.
@@ -220,13 +223,13 @@ cdef class Provider(object):
         else:
             result = self._provide(args, kwargs)
 
-        if self.is_async_mode_disabled():
+        if self.__async_mode == ASYNC_MODE_DISABLED:
             return result
-        elif self.is_async_mode_enabled():
+        elif self.__async_mode == ASYNC_MODE_ENABLED:
             if __is_future_or_coroutine(result):
                 return result
             return __future_result(result)
-        elif self.is_async_mode_undefined():
+        elif self.__async_mode == ASYNC_MODE_UNDEFINED:
             if __is_future_or_coroutine(result):
                 self.enable_async_mode()
             else:

src/dependency_injector/wiring.py

@@ -600,27 +600,29 @@ def _get_patched(fn, reference_injections, reference_closing):
     return patched
 
 
-def _get_sync_patched(fn):
-    @functools.wraps(fn)
-    def _patched(*args, **kwargs):
-        to_inject = kwargs.copy()
-        for injection, provider in _patched.__injections__.items():
-            if injection not in kwargs \
-                    or _is_fastapi_default_arg_injection(injection, kwargs):
-                to_inject[injection] = provider()
+from ._cwiring import _get_sync_patched
 
-        result = fn(*args, **to_inject)
-
-        for injection, provider in _patched.__closing__.items():
-            if injection in kwargs \
-                    and not _is_fastapi_default_arg_injection(injection, kwargs):
-                continue
-            if not isinstance(provider, providers.Resource):
-                continue
-            provider.shutdown()
-
-        return result
-    return _patched
+# def _get_sync_patched(fn):
+#     @functools.wraps(fn)
+#     def _patched(*args, **kwargs):
+#         to_inject = kwargs.copy()
+#         for injection, provider in _patched.__injections__.items():
+#             if injection not in kwargs \
+#                     or _is_fastapi_default_arg_injection(injection, kwargs):
+#                 to_inject[injection] = provider()
+#
+#         result = fn(*args, **to_inject)
+#
+#         for injection, provider in _patched.__closing__.items():
+#             if injection in kwargs \
+#                     and not _is_fastapi_default_arg_injection(injection, kwargs):
+#                 continue
+#             if not isinstance(provider, providers.Resource):
+#                 continue
+#             provider.shutdown()
+#
+#         return result
+#     return _patched
 
 
 def _get_async_patched(fn):
@@ -828,6 +830,8 @@ class ClassGetItemMeta(GenericMeta):
 
 class _Marker(Generic[T], metaclass=ClassGetItemMeta):
 
+    __IS_MARKER__ = True
+
     def __init__(
             self,
             provider: Union[providers.Provider, Container, str],