File crosshair-numpy-bound-method.patch of Package python-crosshair-tool

Index: crosshair_tool-0.0.102/crosshair/register_contract.py
===================================================================
--- crosshair_tool-0.0.102.orig/crosshair/register_contract.py	2026-01-19 21:47:44.000000000 +0100
+++ crosshair_tool-0.0.102/crosshair/register_contract.py	2026-03-28 00:46:48.148183654 +0100
@@ -41,6 +41,13 @@
     return {k for (k, v) in sig.parameters.items() if v.default is Parameter.empty}
 
 
+def _strip_first_param(sig: Signature) -> Signature:
+    params = list(sig.parameters.values())
+    if not params:
+        return sig
+    return sig.replace(parameters=params[1:])
+
+
 def _verify_signatures(
     fn: Callable,
     contract: ContractOverride,
@@ -221,6 +228,19 @@
     # Weak references are not hashable: REGISTERED_CONTRACTS.get(fn) fails.
     if isinstance(fn, ReferenceType):
         return None
+    bound_fn = getattr(fn, "__func__", None)
+    if bound_fn is not None:
+        contract = REGISTERED_CONTRACTS.get(bound_fn)
+        if contract:
+            bound_self = getattr(fn, "__self__", None)
+            if bound_self is not None and not isinstance(bound_self, type):
+                return ContractOverride(
+                    contract.pre,
+                    contract.post,
+                    [_strip_first_param(sig) for sig in contract.sigs],
+                    contract.skip_body,
+                )
+            return contract
     # Return the registered contract for the function, if any.
     contract = REGISTERED_CONTRACTS.get(fn)
     if contract: