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fixed ForbidPythonThreadsAttribute being ignored in certain scenarios #1815

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Merged
filmor merged 1 commit into from
Jun 13, 2022
Merged

fixed ForbidPythonThreadsAttribute being ignored in certain scenarios #1815

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29 changes: 28 additions & 1 deletion src/runtime/Types/MethodObject.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ internal class MethodObject : ExtensionType
internal PyString? doc;
internal MaybeType type;

public MethodObject(MaybeType type, string name, MethodBase[] info, bool allow_threads = MethodBinder.DefaultAllowThreads)
public MethodObject(MaybeType type, string name, MethodBase[] info, bool allow_threads)
{
this.type = type;
this.name = name;
Expand All @@ -45,6 +45,11 @@ public MethodObject(MaybeType type, string name, MethodBase[] info, bool allow_t
binder.allow_threads = allow_threads;
}

public MethodObject(MaybeType type, string name, MethodBase[] info)
: this(type, name, info, allow_threads: AllowThreads(info))
{
}

public bool IsInstanceConstructor => name == "__init__";

public MethodObject WithOverloads(MethodBase[] overloads)
Expand Down Expand Up @@ -206,5 +211,27 @@ public static NewReference tp_repr(BorrowedReference ob)
var self = (MethodObject)GetManagedObject(ob)!;
return Runtime.PyString_FromString($"<method '{self.name}'>");
}

static bool AllowThreads(MethodBase[] methods)
{
bool hasAllowOverload = false, hasForbidOverload = false;
foreach (var method in methods)
{
bool forbidsThreads = method.GetCustomAttribute<ForbidPythonThreadsAttribute>(inherit: false) != null;
if (forbidsThreads)
{
hasForbidOverload = true;
}
else
{
hasAllowOverload = true;
}
}

if (hasAllowOverload && hasForbidOverload)
throw new NotImplementedException("All method overloads currently must either allow or forbid Python threads together");

return !hasForbidOverload;
}
}
}