Add TypeContainer::GetEmptyTypeContainer

Author: CouleeApps

binaryninjaapi.h

@@ -18573,6 +18573,12 @@ namespace BinaryNinja {
 
 		BNTypeContainer* GetObject() const { return m_object; }
 
+		/*! Get an empty type container which contains no types (immutable)
+
+			\return Empty type container
+		 */
+		static TypeContainer GetEmptyTypeContainer();
+
 		/*! Get an id string for the Type Container. This will be unique within a given
 			analysis session, but may not be globally unique.
 

binaryninjacore.h

@@ -3280,6 +3280,7 @@ extern "C"
 		TypeArchiveTypeContainerType,
 		DebugInfoTypeContainerType,
 		PlatformTypeContainerType,
+		EmptyTypeContainerType,
 		OtherTypeContainerType
 	} BNTypeContainerType;
 
@@ -5305,6 +5306,7 @@ extern "C"
 		const char* autoTypeSource, bool importDepencencies, BNTypeParserResult* result,
 		BNTypeParserError** errors, size_t* errorCount
 	);
+	BINARYNINJACOREAPI BNTypeContainer* BNGetEmptyTypeContainer();
 
 	BINARYNINJACOREAPI BNTagType* BNCreateTagType(BNBinaryView* view);
 	BINARYNINJACOREAPI BNTagType* BNNewTagTypeReference(BNTagType* tagType);

python/typecontainer.py

@@ -66,6 +66,16 @@ def __del__(self):
 	def __repr__(self):
 		return f"<type container {self.name}>"
 
+	@classmethod
+	def empty(cls):
+		"""
+		Get an empty Type Container which contains no types (immutable)
+		Useful when a function requires a Type Container but you don't have one.
+		:return: Empty type container
+		"""
+		handle = core.BNGetEmptyTypeContainer()
+		return TypeContainer(handle=handle)
+
 	@property
 	def id(self) -> str:
 		"""

rust/src/type_container.rs

@@ -42,6 +42,12 @@ impl TypeContainer {
         }
     }
 
+    /// Get an empty type container that contains no types (immutable)
+    pub fn empty() -> TypeContainer {
+        let result = unsafe { BNGetEmptyTypeContainer() };
+        unsafe { Self::from_raw(NonNull::new(result).unwrap()) }
+    }
+
     /// Get an id string for the Type Container. This will be unique within a given
     /// analysis session, but may not be globally unique.
     pub fn id(&self) -> String {

typecontainer.cpp

@@ -93,6 +93,13 @@ TypeContainer& TypeContainer::operator=(TypeContainer&& other)
 }
 
 
+TypeContainer TypeContainer::GetEmptyTypeContainer()
+{
+	auto* container = BNGetEmptyTypeContainer();
+	return TypeContainer(container);
+}
+
+
 std::string TypeContainer::GetId() const
 {
 	char* id = BNTypeContainerGetId(m_object);