Add `InferenceContext.is_empty()`

2 files changed, 15 insertions, 0 deletions

diff --git a/astroid/context.py b/astroid/context.py
index a151ca62..cccc81c0 100644
--- a/astroid/context.py
+++ b/astroid/context.py
@@ -140,6 +140,18 @@ class InferenceContext:
         yield
         self.path = path
 
+    def is_empty(self) -> bool:
+        return (
+            not self.path
+            and not self.nodes_inferred
+            and not self.callcontext
+            and not self.boundnode
+            and not self.lookupname
+            and not self.callcontext
+            and not self.extra_context
+            and not self.constraints
+        )
+
     def __str__(self) -> str:
         state = (
             f"{field}={pprint.pformat(getattr(self, field), width=80 - len(field))}"
diff --git a/astroid/inference_tip.py b/astroid/inference_tip.py
index 94c914e6..2e472437 100644
--- a/astroid/inference_tip.py
+++ b/astroid/inference_tip.py
@@ -46,6 +46,9 @@ def _inference_tip_cached(func: InferFn[_NodesT]) -> InferFn[_NodesT]:
             # func + node we raise here.
             _CURRENTLY_INFERRING.remove(partial_cache_key)
             raise UseInferenceDefault
+        if context is not None and context.is_empty():
+            # Fresh, empty contexts will defeat the cache.
+            context = None
         try:
             yield from _cache[func, node, context]
             return