Add confidence levels to type objects

18 files changed, 682 insertions, 206 deletions

diff --git a/architecture.cpp b/architecture.cpp
index eb70b16c..3e82ffd3 100644
--- a/architecture.cpp
+++ b/architecture.cpp
@@ -46,24 +46,31 @@ void InstructionInfo::AddBranch(BNBranchType type, uint64_t target, Architecture
 }
 
 
-InstructionTextToken::InstructionTextToken(): type(TextToken), value(0)
+InstructionTextToken::InstructionTextToken(): type(TextToken), value(0), confidence(BN_FULL_CONFIDENCE)
 {
 }
 
 
 InstructionTextToken::InstructionTextToken(BNInstructionTextTokenType t, const std::string& txt, uint64_t val,
-	size_t s, size_t o) : type(t), text(txt), value(val), size(s), operand(o), context(NoTokenContext), address(0)
+	size_t s, size_t o, uint8_t c) : type(t), text(txt), value(val), size(s), operand(o), context(NoTokenContext),
+	confidence(c), address(0)
 {
 }
 
 
 InstructionTextToken::InstructionTextToken(BNInstructionTextTokenType t, BNInstructionTextTokenContext ctxt,
-	const string& txt, uint64_t a, uint64_t val, size_t s, size_t o):
-	type(t), text(txt), value(val), size(s), operand(o), context(ctxt), address(a)
+	const string& txt, uint64_t a, uint64_t val, size_t s, size_t o, uint8_t c):
+	type(t), text(txt), value(val), size(s), operand(o), context(ctxt), confidence(c), address(a)
 {
 }
 
 
+InstructionTextToken InstructionTextToken::WithConfidence(uint8_t conf)
+{
+	return InstructionTextToken(type, context, text, address, value, size, operand, conf);
+}
+
+
 Architecture::Architecture(BNArchitecture* arch)
 {
 	m_object = arch;
@@ -161,6 +168,7 @@ bool Architecture::GetInstructionTextCallback(void* ctxt, const uint8_t* data, u
 		(*result)[i].size = tokens[i].size;
 		(*result)[i].operand = tokens[i].operand;
 		(*result)[i].context = tokens[i].context;
+		(*result)[i].confidence = tokens[i].confidence;
 		(*result)[i].address = tokens[i].address;
 	}
 	return true;
@@ -990,7 +998,7 @@ bool CoreArchitecture::GetInstructionText(const uint8_t* data, uint64_t addr, si
 	for (size_t i = 0; i < count; i++)
 	{
 		result.push_back(InstructionTextToken(tokens[i].type, tokens[i].context, tokens[i].text, tokens[i].address,
-			tokens[i].value, tokens[i].size, tokens[i].operand));
+			tokens[i].value, tokens[i].size, tokens[i].operand, tokens[i].confidence));
 	}
 
 	BNFreeInstructionText(tokens, count);
diff --git a/basicblock.cpp b/basicblock.cpp
index c2a2bddf..721f1ca6 100644
--- a/basicblock.cpp
+++ b/basicblock.cpp
@@ -276,6 +276,7 @@ vector<DisassemblyTextLine> BasicBlock::GetDisassemblyText(DisassemblySettings*
 			token.size = lines[i].tokens[j].size;
 			token.operand = lines[i].tokens[j].operand;
 			token.context = lines[i].tokens[j].context;
+			token.confidence = lines[i].tokens[j].confidence;
 			token.address = lines[i].tokens[j].address;
 			line.tokens.push_back(token);
 		}
diff --git a/binaryninjaapi.h b/binaryninjaapi.h
index f5850ad0..2341e39f 100644
--- a/binaryninjaapi.h
+++ b/binaryninjaapi.h
@@ -285,6 +285,174 @@ namespace BinaryNinja
 		}
 	};
 
+	class ConfidenceBase
+	{
+	protected:
+		uint8_t m_confidence;
+
+	public:
+		ConfidenceBase(): m_confidence(0)
+		{
+		}
+
+		ConfidenceBase(uint8_t conf): m_confidence(conf)
+		{
+		}
+
+		uint8_t GetConfidence() const { return m_confidence; }
+		void SetConfidence(uint8_t conf) { m_confidence = conf; }
+		bool IsUnknown() const { return m_confidence == 0; }
+	};
+
+	template <class T>
+	class Confidence: public ConfidenceBase
+	{
+		T m_value;
+
+	public:
+		Confidence()
+		{
+		}
+
+		Confidence(const T& value): ConfidenceBase(BN_FULL_CONFIDENCE), m_value(value)
+		{
+		}
+
+		Confidence(const T& value, uint8_t conf): ConfidenceBase(conf), m_value(value)
+		{
+		}
+
+		Confidence(const Confidence<T>& v): ConfidenceBase(v.m_confidence), m_value(v.m_value)
+		{
+		}
+
+		operator T() { return m_value; }
+		const operator T() const { return m_value; }
+		T* operator->() { return &m_value; }
+		const T* operator->() const { return &m_value; }
+
+		T& GetValue() { return m_value; }
+		const T& GetValue() const { return m_value; }
+		void SetValue(const T& value) { m_value = value; }
+
+		Confidence<T>& operator=(const Confidence<T>& v)
+		{
+			m_value = v.m_value;
+			m_confidence = v.m_confidence;
+			return *this;
+		}
+
+		Confidence<T>& operator=(const T& value)
+		{
+			m_value = value;
+			m_confidence = BN_FULL_CONFIDENCE;
+			return *this;
+		}
+
+		bool operator<(const Confidence<T>& a) const
+		{
+			if (m_value < a.m_value)
+				return true;
+			if (a.m_value < m_value)
+				return false;
+			return m_confidence < a.m_confidence;
+		}
+
+		bool operator==(const Confidence<T>& a) const
+		{
+			if (m_confidence != a.m_confidence)
+				return false;
+			return m_confidence == a.m_confidence;
+		}
+
+		bool operator!=(const Confidence<T>& a) const
+		{
+			return !(*this == a);
+		}
+	};
+
+	template <class T>
+	class Confidence<Ref<T>>: public ConfidenceBase
+	{
+		Ref<T> m_value;
+
+	public:
+		Confidence()
+		{
+		}
+
+		Confidence(T* value): ConfidenceBase(value ? BN_FULL_CONFIDENCE : 0), m_value(value)
+		{
+		}
+
+		Confidence(T* value, uint8_t conf): ConfidenceBase(conf), m_value(value)
+		{
+		}
+
+		Confidence(const Ref<T>& value): ConfidenceBase(value ? BN_FULL_CONFIDENCE : 0), m_value(value)
+		{
+		}
+
+		Confidence(const Ref<T>& value, uint8_t conf): ConfidenceBase(conf), m_value(value)
+		{
+		}
+
+		Confidence(const Confidence<Ref<T>>& v): ConfidenceBase(v.m_confidence), m_value(v.m_value)
+		{
+		}
+
+		operator Ref<T>() const { return m_value; }
+		operator T*() const { return m_value.GetPtr(); }
+		T* operator->() const { return m_value.GetPtr(); }
+		bool operator!() const { return !m_value; }
+
+		const Ref<T>& GetValue() const { return m_value; }
+		void SetValue(T* value) { m_value = value; }
+		void SetValue(const Ref<T>& value) { m_value = value; }
+
+		Confidence<Ref<T>>& operator=(const Confidence<Ref<T>>& v)
+		{
+			m_value = v.m_value;
+			m_confidence = v.m_confidence;
+			return *this;
+		}
+
+		Confidence<Ref<T>>& operator=(T* value)
+		{
+			m_value = value;
+			m_confidence = value ? BN_FULL_CONFIDENCE : 0;
+			return *this;
+		}
+
+		Confidence<Ref<T>>& operator=(const Ref<T>& value)
+		{
+			m_value = value;
+			m_confidence = value ? BN_FULL_CONFIDENCE : 0;
+			return *this;
+		}
+
+		bool operator<(const Confidence<Ref<T>>& a) const
+		{
+			if (m_value < a.m_value)
+				return true;
+			if (a.m_value < m_value)
+				return false;
+			return m_confidence < a.m_confidence;
+		}
+
+		bool operator==(const Confidence<Ref<T>>& a) const
+		{
+			if (m_confidence != a.m_confidence)
+				return false;
+			return m_confidence == a.m_confidence;
+		}
+
+		bool operator!=(const Confidence<Ref<T>>& a) const
+		{
+			return !(*this == a);
+		}
+	};
+
 	class LogListener
 	{
 		static void LogMessageCallback(void* ctxt, BNLogLevel level, const char* msg);
@@ -775,14 +943,17 @@ namespace BinaryNinja
 		uint64_t value;
 		size_t size, operand;
 		BNInstructionTextTokenContext context;
+		uint8_t confidence;
 		uint64_t address;
 
 		InstructionTextToken();
 		InstructionTextToken(BNInstructionTextTokenType type, const std::string& text, uint64_t value = 0,
-			size_t size = 0, size_t operand = BN_INVALID_OPERAND);
+			size_t size = 0, size_t operand = BN_INVALID_OPERAND, uint8_t confidence = BN_FULL_CONFIDENCE);
 		InstructionTextToken(BNInstructionTextTokenType type, BNInstructionTextTokenContext context,
 			const std::string& text, uint64_t address, uint64_t value = 0, size_t size = 0,
-			size_t operand = BN_INVALID_OPERAND);
+			size_t operand = BN_INVALID_OPERAND, uint8_t confidence = BN_FULL_CONFIDENCE);
+
+		InstructionTextToken WithConfidence(uint8_t conf);
 	};
 
 	struct DisassemblyTextLine
@@ -826,7 +997,7 @@ namespace BinaryNinja
 	struct DataVariable
 	{
 		uint64_t address;
-		Ref<Type> type;
+		Confidence<Ref<Type>> type;
 		bool autoDiscovered;
 	};
 
@@ -1004,8 +1175,8 @@ namespace BinaryNinja
 		void UpdateAnalysis();
 		void AbortAnalysis();
 
-		void DefineDataVariable(uint64_t addr, Type* type);
-		void DefineUserDataVariable(uint64_t addr, Type* type);
+		void DefineDataVariable(uint64_t addr, const Confidence<Ref<Type>>& type);
+		void DefineUserDataVariable(uint64_t addr, const Confidence<Ref<Type>>& type);
 		void UndefineDataVariable(uint64_t addr);
 		void UndefineUserDataVariable(uint64_t addr);
 
@@ -1632,7 +1803,7 @@ namespace BinaryNinja
 	struct NameAndType
 	{
 		std::string name;
-		Ref<Type> type;
+		Confidence<Ref<Type>> type;
 	};
 
 	struct QualifiedNameAndType
@@ -1650,29 +1821,29 @@ namespace BinaryNinja
 		uint64_t GetWidth() const;
 		size_t GetAlignment() const;
 		QualifiedName GetTypeName() const;
-		bool IsSigned() const;
-		bool IsConst() const;
-		bool IsVolatile() const;
+		Confidence<bool> IsSigned() const;
+		Confidence<bool> IsConst() const;
+		Confidence<bool> IsVolatile() const;
 		bool IsFloat() const;
-		Ref<Type> GetChildType() const;
-		Ref<CallingConvention> GetCallingConvention() const;
+		Confidence<Ref<Type>> GetChildType() const;
+		Confidence<Ref<CallingConvention>> GetCallingConvention() const;
 		std::vector<NameAndType> GetParameters() const;
 		bool HasVariableArguments() const;
-		bool CanReturn() const;
+		Confidence<bool> CanReturn() const;
 		Ref<Structure> GetStructure() const;
 		Ref<Enumeration> GetEnumeration() const;
 		Ref<NamedTypeReference> GetNamedTypeReference() const;
-		BNMemberScope GetScope() const;
-		void SetScope(BNMemberScope scope);
-		BNMemberAccess GetAccess() const;
-		void SetAccess(BNMemberAccess access);
-		void SetConst(bool cnst);
-		void SetVolatile(bool vltl);
+		Confidence<BNMemberScope> GetScope() const;
+		void SetScope(const Confidence<BNMemberScope>& scope);
+		Confidence<BNMemberAccess> GetAccess() const;
+		void SetAccess(const Confidence<BNMemberAccess>& access);
+		void SetConst(const Confidence<bool>& cnst);
+		void SetVolatile(const Confidence<bool>& vltl);
 		void SetTypeName(const QualifiedName& name);
 
 		uint64_t GetElementCount() const;
 
-		void SetFunctionCanReturn(bool canReturn);
+		void SetFunctionCanReturn(const Confidence<bool>& canReturn);
 
 		std::string GetString() const;
 		std::string GetTypeAndName(const QualifiedName& name) const;
@@ -1687,7 +1858,7 @@ namespace BinaryNinja
 
 		static Ref<Type> VoidType();
 		static Ref<Type> BoolType();
-		static Ref<Type> IntegerType(size_t width, bool sign, const std::string& altName = "");
+		static Ref<Type> IntegerType(size_t width, const Confidence<bool>& sign, const std::string& altName = "");
 		static Ref<Type> FloatType(size_t width, const std::string& typeName = "");
 		static Ref<Type> StructureType(Structure* strct);
 		static Ref<Type> NamedType(NamedTypeReference* ref, size_t width = 0, size_t align = 1);
@@ -1695,19 +1866,24 @@ namespace BinaryNinja
 		static Ref<Type> NamedType(const std::string& id, const QualifiedName& name, Type* type);
 		static Ref<Type> NamedType(BinaryView* view, const QualifiedName& name);
 		static Ref<Type> EnumerationType(Architecture* arch, Enumeration* enm, size_t width = 0, bool issigned = false);
-		static Ref<Type> PointerType(Architecture* arch, Type* type, bool cnst = false, bool vltl = false,
-		                             BNReferenceType refType = PointerReferenceType);
-		static Ref<Type> PointerType(size_t width, Type* type, bool cnst = false, bool vltl = false,
-		                             BNReferenceType refType = PointerReferenceType);
-		static Ref<Type> ArrayType(Type* type, uint64_t elem);
-		static Ref<Type> FunctionType(Type* returnValue, CallingConvention* callingConvention,
-		                              const std::vector<NameAndType>& params, bool varArg = false);
+		static Ref<Type> PointerType(Architecture* arch, const Confidence<Ref<Type>>& type,
+			const Confidence<bool>& cnst = Confidence<bool>(false, 0),
+			const Confidence<bool>& vltl = Confidence<bool>(false, 0), BNReferenceType refType = PointerReferenceType);
+		static Ref<Type> PointerType(size_t width, const Confidence<Ref<Type>>& type,
+			const Confidence<bool>& cnst = Confidence<bool>(false, 0),
+			const Confidence<bool>& vltl = Confidence<bool>(false, 0), BNReferenceType refType = PointerReferenceType);
+		static Ref<Type> ArrayType(const Confidence<Ref<Type>>& type, uint64_t elem);
+		static Ref<Type> FunctionType(const Confidence<Ref<Type>>& returnValue,
+			const Confidence<Ref<CallingConvention>>& callingConvention,
+			const std::vector<NameAndType>& params, bool varArg = false);
 
  		static std::string GenerateAutoTypeId(const std::string& source, const QualifiedName& name);
 		static std::string GenerateAutoDemangledTypeId(const QualifiedName& name);
 		static std::string GetAutoDemangledTypeIdSource();
 		static std::string GenerateAutoDebugTypeId(const QualifiedName& name);
 		static std::string GetAutoDebugTypeIdSource();
+
+		Confidence<Ref<Type>> WithConfidence(uint8_t conf);
 	};
 
 	class NamedTypeReference: public CoreRefCountObject<BNNamedTypeReference, BNNewNamedTypeReference,
@@ -1756,10 +1932,10 @@ namespace BinaryNinja
 		bool IsUnion() const;
 		void SetStructureType(BNStructureType type);
 		BNStructureType GetStructureType() const;
-		void AddMember(Type* type, const std::string& name);
-		void AddMemberAtOffset(Type* type, const std::string& name, uint64_t offset);
+		void AddMember(const Confidence<Ref<Type>>& type, const std::string& name);
+		void AddMemberAtOffset(const Confidence<Ref<Type>>& type, const std::string& name, uint64_t offset);
 		void RemoveMember(size_t idx);
-		void ReplaceMember(size_t idx, Type* type, const std::string& name);
+		void ReplaceMember(size_t idx, const Confidence<Ref<Type>>& type, const std::string& name);
 	};
 
 	struct EnumerationMember
@@ -1873,7 +2049,7 @@ namespace BinaryNinja
 	struct VariableNameAndType
 	{
 		Variable var;
-		Ref<Type> type;
+		Confidence<Ref<Type>> type;
 		std::string name;
 		bool autoDefined;
 	};
@@ -1881,7 +2057,7 @@ namespace BinaryNinja
 	struct StackVariableReference
 	{
 		uint32_t sourceOperand;
-		Ref<Type> type;
+		Confidence<Ref<Type>> type;
 		std::string name;
 		Variable var;
 		int64_t referencedOffset;
@@ -1990,20 +2166,20 @@ namespace BinaryNinja
 		Ref<FunctionGraph> CreateFunctionGraph();
 
 		std::map<int64_t, std::vector<VariableNameAndType>> GetStackLayout();
-		void CreateAutoStackVariable(int64_t offset, Ref<Type> type, const std::string& name);
-		void CreateUserStackVariable(int64_t offset, Ref<Type> type, const std::string& name);
+		void CreateAutoStackVariable(int64_t offset, const Confidence<Ref<Type>>& type, const std::string& name);
+		void CreateUserStackVariable(int64_t offset, const Confidence<Ref<Type>>& type, const std::string& name);
 		void DeleteAutoStackVariable(int64_t offset);
 		void DeleteUserStackVariable(int64_t offset);
 		bool GetStackVariableAtFrameOffset(Architecture* arch, uint64_t addr, int64_t offset, VariableNameAndType& var);
 
 		std::map<Variable, VariableNameAndType> GetVariables();
-		void CreateAutoVariable(const Variable& var, Ref<Type> type, const std::string& name,
+		void CreateAutoVariable(const Variable& var, const Confidence<Ref<Type>>& type, const std::string& name,
 			bool ignoreDisjointUses = false);
-		void CreateUserVariable(const Variable& var, Ref<Type> type, const std::string& name,
+		void CreateUserVariable(const Variable& var, const Confidence<Ref<Type>>& type, const std::string& name,
 			bool ignoreDisjointUses = false);
 		void DeleteAutoVariable(const Variable& var);
 		void DeleteUserVariable(const Variable& var);
-		Ref<Type> GetVariableType(const Variable& var);
+		Confidence<Ref<Type>> GetVariableType(const Variable& var);
 		std::string GetVariableName(const Variable& var);
 
 		void SetAutoIndirectBranches(Architecture* sourceArch, uint64_t source, const std::vector<ArchAndAddr>& branches);
diff --git a/binaryninjacore.h b/binaryninjacore.h
index eb9927ab..f5b89437 100644
--- a/binaryninjacore.h
+++ b/binaryninjacore.h
@@ -92,6 +92,8 @@
 #define BN_MAX_VARIABLE_OFFSET       0x7fffffffffLL
 #define BN_MAX_VARIABLE_INDEX        0xfffff
 
+#define BN_FULL_CONFIDENCE 255
+
 #ifdef __cplusplus
 extern "C"
 {
@@ -714,6 +716,7 @@ extern "C"
 		uint64_t address;
 		BNType* type;
 		bool autoDiscovered;
+		uint8_t typeConfidence;
 	};
 
 	enum BNMediumLevelILOperation
@@ -962,6 +965,7 @@ extern "C"
 		uint64_t value;
 		size_t size, operand;
 		BNInstructionTextTokenContext context;
+		uint8_t confidence;
 		uint64_t address;
 	};
 
@@ -1080,10 +1084,41 @@ extern "C"
 		char* (*serialize)(void* ctxt);
 	};
 
+	struct BNTypeWithConfidence
+	{
+		BNType* type;
+		uint8_t confidence;
+	};
+
+	struct BNCallingConventionWithConfidence
+	{
+		BNCallingConvention* convention;
+		uint8_t confidence;
+	};
+
+	struct BNBoolWithConfidence
+	{
+		bool value;
+		uint8_t confidence;
+	};
+
+	struct BNMemberScopeWithConfidence
+	{
+		BNMemberScope value;
+		uint8_t confidence;
+	};
+
+	struct BNMemberAccessWithConfidence
+	{
+		BNMemberAccess value;
+		uint8_t confidence;
+	};
+
 	struct BNNameAndType
 	{
 		char* name;
 		BNType* type;
+		uint8_t typeConfidence;
 	};
 
 	struct BNQualifiedNameAndType
@@ -1097,6 +1132,7 @@ extern "C"
 		BNType* type;
 		char* name;
 		uint64_t offset;
+		uint8_t typeConfidence;
 	};
 
 	struct BNEnumerationMember
@@ -1199,11 +1235,13 @@ extern "C"
 		BNType* type;
 		char* name;
 		bool autoDefined;
+		uint8_t typeConfidence;
 	};
 
 	struct BNStackVariableReference
 	{
 		uint32_t sourceOperand;
+		uint8_t typeConfidence;
 		BNType* type;
 		char* name;
 		uint64_t varIdentifier;
@@ -2027,8 +2065,10 @@ extern "C"
 
 	BINARYNINJACOREAPI BNVariableNameAndType* BNGetStackLayout(BNFunction* func, size_t* count);
 	BINARYNINJACOREAPI void BNFreeVariableList(BNVariableNameAndType* vars, size_t count);
-	BINARYNINJACOREAPI void BNCreateAutoStackVariable(BNFunction* func, int64_t offset, BNType* type, const char* name);
-	BINARYNINJACOREAPI void BNCreateUserStackVariable(BNFunction* func, int64_t offset, BNType* type, const char* name);
+	BINARYNINJACOREAPI void BNCreateAutoStackVariable(BNFunction* func, int64_t offset,
+		BNTypeWithConfidence* type, const char* name);
+	BINARYNINJACOREAPI void BNCreateUserStackVariable(BNFunction* func, int64_t offset,
+		BNTypeWithConfidence* type, const char* name);
 	BINARYNINJACOREAPI void BNDeleteAutoStackVariable(BNFunction* func, int64_t offset);
 	BINARYNINJACOREAPI void BNDeleteUserStackVariable(BNFunction* func, int64_t offset);
 	BINARYNINJACOREAPI bool BNGetStackVariableAtFrameOffset(BNFunction* func, BNArchitecture* arch, uint64_t addr,
@@ -2036,13 +2076,13 @@ extern "C"
 	BINARYNINJACOREAPI void BNFreeVariableNameAndType(BNVariableNameAndType* var);
 
 	BINARYNINJACOREAPI BNVariableNameAndType* BNGetFunctionVariables(BNFunction* func, size_t* count);
-	BINARYNINJACOREAPI void BNCreateAutoVariable(BNFunction* func, const BNVariable* var, BNType* type,
+	BINARYNINJACOREAPI void BNCreateAutoVariable(BNFunction* func, const BNVariable* var, BNTypeWithConfidence* type,
 		const char* name, bool ignoreDisjointUses);
-	BINARYNINJACOREAPI void BNCreateUserVariable(BNFunction* func, const BNVariable* var, BNType* type,
+	BINARYNINJACOREAPI void BNCreateUserVariable(BNFunction* func, const BNVariable* var, BNTypeWithConfidence* type,
 		const char* name, bool ignoreDisjointUses);
 	BINARYNINJACOREAPI void BNDeleteAutoVariable(BNFunction* func, const BNVariable* var);
 	BINARYNINJACOREAPI void BNDeleteUserVariable(BNFunction* func, const BNVariable* var);
-	BINARYNINJACOREAPI BNType* BNGetVariableType(BNFunction* func, const BNVariable* var);
+	BINARYNINJACOREAPI BNTypeWithConfidence BNGetVariableType(BNFunction* func, const BNVariable* var);
 	BINARYNINJACOREAPI char* BNGetVariableName(BNFunction* func, const BNVariable* var);
 	BINARYNINJACOREAPI uint64_t BNToVariableIdentifier(const BNVariable* var);
 	BINARYNINJACOREAPI BNVariable BNFromVariableIdentifier(uint64_t id);
@@ -2093,8 +2133,8 @@ extern "C"
 		BNLinearDisassemblyPosition* pos, BNDisassemblySettings* settings, size_t* count);
 	BINARYNINJACOREAPI void BNFreeLinearDisassemblyLines(BNLinearDisassemblyLine* lines, size_t count);
 
-	BINARYNINJACOREAPI void BNDefineDataVariable(BNBinaryView* view, uint64_t addr, BNType* type);
-	BINARYNINJACOREAPI void BNDefineUserDataVariable(BNBinaryView* view, uint64_t addr, BNType* type);
+	BINARYNINJACOREAPI void BNDefineDataVariable(BNBinaryView* view, uint64_t addr, BNTypeWithConfidence* type);
+	BINARYNINJACOREAPI void BNDefineUserDataVariable(BNBinaryView* view, uint64_t addr, BNTypeWithConfidence* type);
 	BINARYNINJACOREAPI void BNUndefineDataVariable(BNBinaryView* view, uint64_t addr);
 	BINARYNINJACOREAPI void BNUndefineUserDataVariable(BNBinaryView* view, uint64_t addr);
 	BINARYNINJACOREAPI BNDataVariable* BNGetDataVariables(BNBinaryView* view, size_t* count);
@@ -2451,17 +2491,18 @@ extern "C"
 	// Types
 	BINARYNINJACOREAPI BNType* BNCreateVoidType(void);
 	BINARYNINJACOREAPI BNType* BNCreateBoolType(void);
-	BINARYNINJACOREAPI BNType* BNCreateIntegerType(size_t width, bool sign, const char* altName);
+	BINARYNINJACOREAPI BNType* BNCreateIntegerType(size_t width, BNBoolWithConfidence* sign, const char* altName);
 	BINARYNINJACOREAPI BNType* BNCreateFloatType(size_t width, const char* altName);
 	BINARYNINJACOREAPI BNType* BNCreateStructureType(BNStructure* s);
 	BINARYNINJACOREAPI BNType* BNCreateEnumerationType(BNArchitecture* arch, BNEnumeration* e, size_t width, bool isSigned);
-	BINARYNINJACOREAPI BNType* BNCreatePointerType(BNArchitecture* arch, BNType* type, bool cnst, bool vltl,
-	                                               BNReferenceType refType);
-	BINARYNINJACOREAPI BNType* BNCreatePointerTypeOfWidth(size_t width, BNType* type, bool cnst, bool vltl,
-	                                               BNReferenceType refType);
-	BINARYNINJACOREAPI BNType* BNCreateArrayType(BNType* type, uint64_t elem);
-	BINARYNINJACOREAPI BNType* BNCreateFunctionType(BNType* returnValue, BNCallingConvention* callingConvention,
-	                                                BNNameAndType* params, size_t paramCount, bool varArg);
+	BINARYNINJACOREAPI BNType* BNCreatePointerType(BNArchitecture* arch, BNTypeWithConfidence* type,
+		BNBoolWithConfidence* cnst, BNBoolWithConfidence* vltl, BNReferenceType refType);
+	BINARYNINJACOREAPI BNType* BNCreatePointerTypeOfWidth(size_t width, BNTypeWithConfidence* type,
+		BNBoolWithConfidence* cnst, BNBoolWithConfidence* vltl, BNReferenceType refType);
+	BINARYNINJACOREAPI BNType* BNCreateArrayType(BNTypeWithConfidence* type, uint64_t elem);
+	BINARYNINJACOREAPI BNType* BNCreateFunctionType(BNTypeWithConfidence* returnValue,
+		BNCallingConventionWithConfidence* callingConvention, BNNameAndType* params,
+		size_t paramCount, bool varArg);
 	BINARYNINJACOREAPI BNType* BNNewTypeReference(BNType* type);
 	BINARYNINJACOREAPI BNType* BNDuplicateType(BNType* type);
 	BINARYNINJACOREAPI char* BNGetTypeAndName(BNType* type, BNQualifiedName* name);
@@ -2472,27 +2513,27 @@ extern "C"
 	BINARYNINJACOREAPI BNTypeClass BNGetTypeClass(BNType* type);
 	BINARYNINJACOREAPI uint64_t BNGetTypeWidth(BNType* type);
 	BINARYNINJACOREAPI size_t BNGetTypeAlignment(BNType* type);
-	BINARYNINJACOREAPI bool BNIsTypeSigned(BNType* type);
-	BINARYNINJACOREAPI bool BNIsTypeConst(BNType* type);
-	BINARYNINJACOREAPI bool BNIsTypeVolatile(BNType* type);
+	BINARYNINJACOREAPI BNBoolWithConfidence BNIsTypeSigned(BNType* type);
+	BINARYNINJACOREAPI BNBoolWithConfidence BNIsTypeConst(BNType* type);
+	BINARYNINJACOREAPI BNBoolWithConfidence BNIsTypeVolatile(BNType* type);
 	BINARYNINJACOREAPI bool BNIsTypeFloatingPoint(BNType* type);
-	BINARYNINJACOREAPI BNType* BNGetChildType(BNType* type);
-	BINARYNINJACOREAPI BNCallingConvention* BNGetTypeCallingConvention(BNType* type);
+	BINARYNINJACOREAPI BNTypeWithConfidence BNGetChildType(BNType* type);
+	BINARYNINJACOREAPI BNCallingConventionWithConfidence BNGetTypeCallingConvention(BNType* type);
 	BINARYNINJACOREAPI BNNameAndType* BNGetTypeParameters(BNType* type, size_t* count);
 	BINARYNINJACOREAPI void BNFreeTypeParameterList(BNNameAndType* types, size_t count);
 	BINARYNINJACOREAPI bool BNTypeHasVariableArguments(BNType* type);
-	BINARYNINJACOREAPI bool BNFunctionTypeCanReturn(BNType* type);
+	BINARYNINJACOREAPI BNBoolWithConfidence BNFunctionTypeCanReturn(BNType* type);
 	BINARYNINJACOREAPI BNStructure* BNGetTypeStructure(BNType* type);
 	BINARYNINJACOREAPI BNEnumeration* BNGetTypeEnumeration(BNType* type);
 	BINARYNINJACOREAPI BNNamedTypeReference* BNGetTypeNamedTypeReference(BNType* type);
 	BINARYNINJACOREAPI uint64_t BNGetTypeElementCount(BNType* type);
-	BINARYNINJACOREAPI void BNSetFunctionCanReturn(BNType* type, bool canReturn);
-	BINARYNINJACOREAPI BNMemberScope BNTypeGetMemberScope(BNType* type);
-	BINARYNINJACOREAPI void BNTypeSetMemberScope(BNType* type, BNMemberScope scope);
-	BINARYNINJACOREAPI BNMemberAccess BNTypeGetMemberAccess(BNType* type);
-	BINARYNINJACOREAPI void BNTypeSetMemberAccess(BNType* type, BNMemberAccess access);
-	BINARYNINJACOREAPI void BNTypeSetConst(BNType* type, bool cnst);
-	BINARYNINJACOREAPI void BNTypeSetVolatile(BNType* type, bool vltl);
+	BINARYNINJACOREAPI void BNSetFunctionCanReturn(BNType* type, BNBoolWithConfidence* canReturn);
+	BINARYNINJACOREAPI BNMemberScopeWithConfidence BNTypeGetMemberScope(BNType* type);
+	BINARYNINJACOREAPI void BNTypeSetMemberScope(BNType* type, BNMemberScopeWithConfidence* scope);
+	BINARYNINJACOREAPI BNMemberAccessWithConfidence BNTypeGetMemberAccess(BNType* type);
+	BINARYNINJACOREAPI void BNTypeSetMemberAccess(BNType* type, BNMemberAccessWithConfidence* access);
+	BINARYNINJACOREAPI void BNTypeSetConst(BNType* type, BNBoolWithConfidence* cnst);
+	BINARYNINJACOREAPI void BNTypeSetVolatile(BNType* type, BNBoolWithConfidence* vltl);
 
 	BINARYNINJACOREAPI char* BNGetTypeString(BNType* type);
 	BINARYNINJACOREAPI char* BNGetTypeStringBeforeName(BNType* type);
@@ -2533,10 +2574,12 @@ extern "C"
 	BINARYNINJACOREAPI void BNSetStructureType(BNStructure* s, BNStructureType type);
 	BINARYNINJACOREAPI BNStructureType BNGetStructureType(BNStructure* s);
 
-	BINARYNINJACOREAPI void BNAddStructureMember(BNStructure* s, BNType* type, const char* name);
-	BINARYNINJACOREAPI void BNAddStructureMemberAtOffset(BNStructure* s, BNType* type, const char* name, uint64_t offset);
+	BINARYNINJACOREAPI void BNAddStructureMember(BNStructure* s, BNTypeWithConfidence* type, const char* name);
+	BINARYNINJACOREAPI void BNAddStructureMemberAtOffset(BNStructure* s, BNTypeWithConfidence* type,
+		const char* name, uint64_t offset);
 	BINARYNINJACOREAPI void BNRemoveStructureMember(BNStructure* s, size_t idx);
-	BINARYNINJACOREAPI void BNReplaceStructureMember(BNStructure* s, size_t idx, BNType* type, const char* name);
+	BINARYNINJACOREAPI void BNReplaceStructureMember(BNStructure* s, size_t idx, BNTypeWithConfidence* type,
+		const char* name);
 
 	BINARYNINJACOREAPI BNEnumeration* BNCreateEnumeration(void);
 	BINARYNINJACOREAPI BNEnumeration* BNNewEnumerationReference(BNEnumeration* e);
diff --git a/binaryview.cpp b/binaryview.cpp
index b330508d..03764f85 100644
--- a/binaryview.cpp
+++ b/binaryview.cpp
@@ -84,7 +84,7 @@ void BinaryDataNotification::DataVariableAddedCallback(void* ctxt, BNBinaryView*
 	Ref<BinaryView> view = new BinaryView(BNNewViewReference(object));
 	DataVariable varObj;
 	varObj.address = var->address;
-	varObj.type = new Type(BNNewTypeReference(var->type));
+	varObj.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(var->type)), var->typeConfidence);
 	varObj.autoDiscovered = var->autoDiscovered;
 	notify->OnDataVariableAdded(view, varObj);
 }
@@ -96,7 +96,7 @@ void BinaryDataNotification::DataVariableRemovedCallback(void* ctxt, BNBinaryVie
 	Ref<BinaryView> view = new BinaryView(BNNewViewReference(object));
 	DataVariable varObj;
 	varObj.address = var->address;
-	varObj.type = new Type(BNNewTypeReference(var->type));
+	varObj.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(var->type)), var->typeConfidence);
 	varObj.autoDiscovered = var->autoDiscovered;
 	notify->OnDataVariableRemoved(view, varObj);
 }
@@ -108,7 +108,7 @@ void BinaryDataNotification::DataVariableUpdatedCallback(void* ctxt, BNBinaryVie
 	Ref<BinaryView> view = new BinaryView(BNNewViewReference(object));
 	DataVariable varObj;
 	varObj.address = var->address;
-	varObj.type = new Type(BNNewTypeReference(var->type));
+	varObj.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(var->type)), var->typeConfidence);
 	varObj.autoDiscovered = var->autoDiscovered;
 	notify->OnDataVariableUpdated(view, varObj);
 }
@@ -884,15 +884,21 @@ void BinaryView::AbortAnalysis()
 }
 
 
-void BinaryView::DefineDataVariable(uint64_t addr, Type* type)
+void BinaryView::DefineDataVariable(uint64_t addr, const Confidence<Ref<Type>>& type)
 {
-	BNDefineDataVariable(m_object, addr, type->GetObject());
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNDefineDataVariable(m_object, addr, &tc);
 }
 
 
-void BinaryView::DefineUserDataVariable(uint64_t addr, Type* type)
+void BinaryView::DefineUserDataVariable(uint64_t addr, const Confidence<Ref<Type>>& type)
 {
-	BNDefineUserDataVariable(m_object, addr, type->GetObject());
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNDefineUserDataVariable(m_object, addr, &tc);
 }
 
 
@@ -918,7 +924,7 @@ map<uint64_t, DataVariable> BinaryView::GetDataVariables()
 	{
 		DataVariable var;
 		var.address = vars[i].address;
-		var.type = new Type(BNNewTypeReference(vars[i].type));
+		var.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(vars[i].type)), vars[i].typeConfidence);
 		var.autoDiscovered = vars[i].autoDiscovered;
 		result[var.address] = var;
 	}
@@ -931,7 +937,7 @@ map<uint64_t, DataVariable> BinaryView::GetDataVariables()
 bool BinaryView::GetDataVariableAtAddress(uint64_t addr, DataVariable& var)
 {
 	var.address = 0;
-	var.type = nullptr;
+	var.type = Confidence<Ref<Type>>(nullptr, 0);
 	var.autoDiscovered = false;
 
 	BNDataVariable result;
@@ -939,7 +945,7 @@ bool BinaryView::GetDataVariableAtAddress(uint64_t addr, DataVariable& var)
 		return false;
 
 	var.address = result.address;
-	var.type = new Type(result.type);
+	var.type = Confidence<Ref<Type>>(new Type(result.type), result.typeConfidence);
 	var.autoDiscovered = result.autoDiscovered;
 	return true;
 }
@@ -1388,6 +1394,7 @@ vector<LinearDisassemblyLine> BinaryView::GetPreviousLinearDisassemblyLines(Line
 			token.size = lines[i].contents.tokens[j].size;
 			token.operand = lines[i].contents.tokens[j].operand;
 			token.context = lines[i].contents.tokens[j].context;
+			token.confidence = lines[i].contents.tokens[j].confidence;
 			token.address = lines[i].contents.tokens[j].address;
 			line.contents.tokens.push_back(token);
 		}
@@ -1433,6 +1440,7 @@ vector<LinearDisassemblyLine> BinaryView::GetNextLinearDisassemblyLines(LinearDi
 			token.size = lines[i].contents.tokens[j].size;
 			token.operand = lines[i].contents.tokens[j].operand;
 			token.context = lines[i].contents.tokens[j].context;
+			token.confidence = lines[i].contents.tokens[j].confidence;
 			token.address = lines[i].contents.tokens[j].address;
 			line.contents.tokens.push_back(token);
 		}
diff --git a/function.cpp b/function.cpp
index b570499c..0e1fa5cf 100644
--- a/function.cpp
+++ b/function.cpp
@@ -353,7 +353,8 @@ vector<StackVariableReference> Function::GetStackVariablesReferencedByInstructio
 	{
 		StackVariableReference ref;
 		ref.sourceOperand = refs[i].sourceOperand;
-		ref.type = refs[i].type ? new Type(BNNewTypeReference(refs[i].type)) : nullptr;
+		ref.type = Confidence<Ref<Type>>(refs[i].type ? new Type(BNNewTypeReference(refs[i].type)) : nullptr,
+			refs[i].typeConfidence);
 		ref.name = refs[i].name;
 		ref.var = Variable::FromIdentifier(refs[i].varIdentifier);
 		ref.referencedOffset = refs[i].referencedOffset;
@@ -491,7 +492,7 @@ map<int64_t, vector<VariableNameAndType>> Function::GetStackLayout()
 	{
 		VariableNameAndType var;
 		var.name = vars[i].name;
-		var.type = new Type(BNNewTypeReference(vars[i].type));
+		var.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(vars[i].type)), vars[i].typeConfidence);
 		var.var = vars[i].var;
 		var.autoDefined = vars[i].autoDefined;
 		result[vars[i].var.storage].push_back(var);
@@ -502,15 +503,21 @@ map<int64_t, vector<VariableNameAndType>> Function::GetStackLayout()
 }
 
 
-void Function::CreateAutoStackVariable(int64_t offset, Ref<Type> type, const string& name)
+void Function::CreateAutoStackVariable(int64_t offset, const Confidence<Ref<Type>>& type, const string& name)
 {
-	BNCreateAutoStackVariable(m_object, offset, type->GetObject(), name.c_str());
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNCreateAutoStackVariable(m_object, offset, &tc, name.c_str());
 }
 
 
-void Function::CreateUserStackVariable(int64_t offset, Ref<Type> type, const string& name)
+void Function::CreateUserStackVariable(int64_t offset, const Confidence<Ref<Type>>& type, const string& name)
 {
-	BNCreateUserStackVariable(m_object, offset, type->GetObject(), name.c_str());
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNCreateUserStackVariable(m_object, offset, &tc, name.c_str());
 }
 
 
@@ -533,7 +540,7 @@ bool Function::GetStackVariableAtFrameOffset(Architecture* arch, uint64_t addr,
 	if (!BNGetStackVariableAtFrameOffset(m_object, arch->GetObject(), addr, offset, &var))
 		return false;
 
-	result.type = new Type(BNNewTypeReference(var.type));
+	result.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(var.type)), var.typeConfidence);
 	result.name = var.name;
 	result.var = var.var;
 	result.autoDefined = var.autoDefined;
@@ -553,7 +560,7 @@ map<Variable, VariableNameAndType> Function::GetVariables()
 	{
 		VariableNameAndType var;
 		var.name = vars[i].name;
-		var.type = new Type(BNNewTypeReference(vars[i].type));
+		var.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(vars[i].type)), vars[i].typeConfidence);
 		var.var = vars[i].var;
 		var.autoDefined = vars[i].autoDefined;
 		result[vars[i].var] = var;
@@ -564,15 +571,23 @@ map<Variable, VariableNameAndType> Function::GetVariables()
 }
 
 
-void Function::CreateAutoVariable(const Variable& var, Ref<Type> type, const string& name, bool ignoreDisjointUses)
+void Function::CreateAutoVariable(const Variable& var, const Confidence<Ref<Type>>& type,
+	const string& name, bool ignoreDisjointUses)
 {
-	BNCreateAutoVariable(m_object, &var, type->GetObject(), name.c_str(), ignoreDisjointUses);
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNCreateAutoVariable(m_object, &var, &tc, name.c_str(), ignoreDisjointUses);
 }
 
 
-void Function::CreateUserVariable(const Variable& var, Ref<Type> type, const string& name, bool ignoreDisjointUses)
+void Function::CreateUserVariable(const Variable& var, const Confidence<Ref<Type>>& type,
+	const string& name, bool ignoreDisjointUses)
 {
-	BNCreateUserVariable(m_object, &var, type->GetObject(), name.c_str(), ignoreDisjointUses);
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNCreateUserVariable(m_object, &var, &tc, name.c_str(), ignoreDisjointUses);
 }
 
 
@@ -588,12 +603,12 @@ void Function::DeleteUserVariable(const Variable& var)
 }
 
 
-Ref<Type> Function::GetVariableType(const Variable& var)
+Confidence<Ref<Type>> Function::GetVariableType(const Variable& var)
 {
-	BNType* type = BNGetVariableType(m_object, &var);
-	if (!type)
+	BNTypeWithConfidence type = BNGetVariableType(m_object, &var);
+	if (!type.type)
 		return nullptr;
-	return new Type(type);
+	return Confidence<Ref<Type>>(new Type(type.type), type.confidence);
 }
 
 
@@ -694,6 +709,7 @@ vector<vector<InstructionTextToken>> Function::GetBlockAnnotations(Architecture*
 			token.size = lines[i].tokens[j].size;
 			token.operand = lines[i].tokens[j].operand;
 			token.context = lines[i].tokens[j].context;
+			token.confidence = lines[i].tokens[j].confidence;
 			token.address = lines[i].tokens[j].address;
 			line.push_back(token);
 		}
diff --git a/functiongraphblock.cpp b/functiongraphblock.cpp
index 938fb635..20b2515b 100644
--- a/functiongraphblock.cpp
+++ b/functiongraphblock.cpp
@@ -102,6 +102,7 @@ const vector<DisassemblyTextLine>& FunctionGraphBlock::GetLines()
 			token.size = lines[i].tokens[j].size;
 			token.operand = lines[i].tokens[j].operand;
 			token.context = lines[i].tokens[j].context;
+			token.confidence = lines[i].tokens[j].confidence;
 			token.address = lines[i].tokens[j].address;
 			line.tokens.push_back(token);
 		}
diff --git a/lowlevelil.cpp b/lowlevelil.cpp
index c48b5b92..4ff16a05 100644
--- a/lowlevelil.cpp
+++ b/lowlevelil.cpp
@@ -658,6 +658,7 @@ bool LowLevelILFunction::GetExprText(Architecture* arch, ExprId expr, vector<Ins
 		token.size = list[i].size;
 		token.operand = list[i].operand;
 		token.context = list[i].context;
+		token.confidence = list[i].confidence;
 		token.address = list[i].address;
 		tokens.push_back(token);
 	}
@@ -686,6 +687,7 @@ bool LowLevelILFunction::GetInstructionText(Function* func, Architecture* arch,
 		token.size = list[i].size;
 		token.operand = list[i].operand;
 		token.context = list[i].context;
+		token.confidence = list[i].confidence;
 		token.address = list[i].address;
 		tokens.push_back(token);
 	}
diff --git a/mediumlevelil.cpp b/mediumlevelil.cpp
index 75c99a54..8bbb2746 100644
--- a/mediumlevelil.cpp
+++ b/mediumlevelil.cpp
@@ -178,6 +178,7 @@ bool MediumLevelILFunction::GetExprText(Architecture* arch, ExprId expr, vector<
 		token.size = list[i].size;
 		token.operand = list[i].operand;
 		token.context = list[i].context;
+		token.confidence = list[i].confidence;
 		token.address = list[i].address;
 		tokens.push_back(token);
 	}
@@ -206,6 +207,7 @@ bool MediumLevelILFunction::GetInstructionText(Function* func, Architecture* arc
 		token.size = list[i].size;
 		token.operand = list[i].operand;
 		token.context = list[i].context;
+		token.confidence = list[i].confidence;
 		token.address = list[i].address;
 		tokens.push_back(token);
 	}
diff --git a/python/architecture.py b/python/architecture.py
index 2eb3c717..b9c6fcc9 100644
--- a/python/architecture.py
+++ b/python/architecture.py
@@ -478,6 +478,7 @@ class Architecture(object):
 				token_buf[i].size = tokens[i].size
 				token_buf[i].operand = tokens[i].operand
 				token_buf[i].context = tokens[i].context
+				token_buf[i].confidence = tokens[i].confidence
 				token_buf[i].address = tokens[i].address
 			result[0] = token_buf
 			ptr = ctypes.cast(token_buf, ctypes.c_void_p)
@@ -1163,8 +1164,9 @@ class Architecture(object):
 			size = tokens[i].size
 			operand = tokens[i].operand
 			context = tokens[i].context
+			confidence = tokens[i].confidence
 			address = tokens[i].address
-			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 		core.BNFreeInstructionText(tokens, count.value)
 		return result, length.value
 
diff --git a/python/basicblock.py b/python/basicblock.py
index 7858cc60..c92336c5 100644
--- a/python/basicblock.py
+++ b/python/basicblock.py
@@ -298,8 +298,9 @@ class BasicBlock(object):
 				size = lines[i].tokens[j].size
 				operand = lines[i].tokens[j].operand
 				context = lines[i].tokens[j].context
+				confidence = lines[i].tokens[j].confidence
 				address = lines[i].tokens[j].address
-				tokens.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+				tokens.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 			result.append(function.DisassemblyTextLine(addr, tokens))
 		core.BNFreeDisassemblyTextLines(lines, count.value)
 		return result
diff --git a/python/binaryview.py b/python/binaryview.py
index c0ac0abc..15e5d5da 100644
--- a/python/binaryview.py
+++ b/python/binaryview.py
@@ -211,7 +211,7 @@ class BinaryDataNotificationCallbacks(object):
 	def _data_var_added(self, ctxt, view, var):
 		try:
 			address = var[0].address
-			var_type = types.Type(core.BNNewTypeReference(var[0].type))
+			var_type = types.Type(core.BNNewTypeReference(var[0].type), confidence = var[0].typeConfidence)
 			auto_discovered = var[0].autoDiscovered
 			self.notify.data_var_added(self.view, DataVariable(address, var_type, auto_discovered))
 		except:
@@ -220,7 +220,7 @@ class BinaryDataNotificationCallbacks(object):
 	def _data_var_removed(self, ctxt, view, var):
 		try:
 			address = var[0].address
-			var_type = types.Type(core.BNNewTypeReference(var[0].type))
+			var_type = types.Type(core.BNNewTypeReference(var[0].type), confidence = var[0].typeConfidence)
 			auto_discovered = var[0].autoDiscovered
 			self.notify.data_var_removed(self.view, DataVariable(address, var_type, auto_discovered))
 		except:
@@ -229,7 +229,7 @@ class BinaryDataNotificationCallbacks(object):
 	def _data_var_updated(self, ctxt, view, var):
 		try:
 			address = var[0].address
-			var_type = types.Type(core.BNNewTypeReference(var[0].type))
+			var_type = types.Type(core.BNNewTypeReference(var[0].type), confidence = var[0].typeConfidence)
 			auto_discovered = var[0].autoDiscovered
 			self.notify.data_var_updated(self.view, DataVariable(address, var_type, auto_discovered))
 		except:
@@ -854,7 +854,7 @@ class BinaryView(object):
 		result = {}
 		for i in xrange(0, count.value):
 			addr = var_list[i].address
-			var_type = types.Type(core.BNNewTypeReference(var_list[i].type))
+			var_type = types.Type(core.BNNewTypeReference(var_list[i].type), confidence = var_list[i].typeConfidence)
 			auto_discovered = var_list[i].autoDiscovered
 			result[addr] = DataVariable(addr, var_type, auto_discovered)
 		core.BNFreeDataVariables(var_list, count.value)
@@ -1847,7 +1847,10 @@ class BinaryView(object):
 			>>> bv.define_data_var(bv.entry_point, t[0])
 			>>>
 		"""
-		core.BNDefineDataVariable(self.handle, addr, var_type.handle)
+		tc = core.BNTypeWithConfidence()
+		tc.type = var_type.handle
+		tc.confidence = var_type.confidence
+		core.BNDefineDataVariable(self.handle, addr, tc)
 
 	def define_user_data_var(self, addr, var_type):
 		"""
@@ -1864,7 +1867,10 @@ class BinaryView(object):
 			>>> bv.define_user_data_var(bv.entry_point, t[0])
 			>>>
 		"""
-		core.BNDefineUserDataVariable(self.handle, addr, var_type.handle)
+		tc = core.BNTypeWithConfidence()
+		tc.type = var_type.handle
+		tc.confidence = var_type.confidence
+		core.BNDefineUserDataVariable(self.handle, addr, tc)
 
 	def undefine_data_var(self, addr):
 		"""
@@ -1910,7 +1916,7 @@ class BinaryView(object):
 		var = core.BNDataVariable()
 		if not core.BNGetDataVariableAtAddress(self.handle, addr, var):
 			return None
-		return DataVariable(var.address, types.Type(var.type), var.autoDiscovered)
+		return DataVariable(var.address, types.Type(var.type, confidence = var.typeConfidence), var.autoDiscovered)
 
 	def get_function_at(self, addr, plat=None):
 		"""
@@ -2781,8 +2787,9 @@ class BinaryView(object):
 				size = lines[i].contents.tokens[j].size
 				operand = lines[i].contents.tokens[j].operand
 				context = lines[i].contents.tokens[j].context
+				confidence = lines[i].contents.tokens[j].confidence
 				address = lines[i].contents.tokens[j].address
-				tokens.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+				tokens.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 			contents = function.DisassemblyTextLine(addr, tokens)
 			result.append(lineardisassembly.LinearDisassemblyLine(lines[i].type, func, block, lines[i].lineOffset, contents))
 
diff --git a/python/callingconvention.py b/python/callingconvention.py
index 4c87eef6..e6aa323c 100644
--- a/python/callingconvention.py
+++ b/python/callingconvention.py
@@ -25,6 +25,7 @@ import ctypes
 import _binaryninjacore as core
 import architecture
 import log
+import types
 
 
 class CallingConvention(object):
@@ -40,7 +41,7 @@ class CallingConvention(object):
 
 	_registered_calling_conventions = []
 
-	def __init__(self, arch, handle = None):
+	def __init__(self, arch, handle = None, confidence = types.Type.max_confidence):
 		if handle is None:
 			self.arch = arch
 			self._pending_reg_lists = {}
@@ -109,6 +110,8 @@ class CallingConvention(object):
 			else:
 				self.__dict__["float_return_reg"] = self.arch.get_reg_name(reg)
 
+		self.confidence = confidence
+
 	def __del__(self):
 		core.BNFreeCallingConvention(self.handle)
 
@@ -220,3 +223,7 @@ class CallingConvention(object):
 
 	def __str__(self):
 		return self.name
+
+	def with_confidence(self, confidence):
+		return CallingConvention(self.arch, handle = core.BNNewCallingConventionReference(self.handle),
+			confidence = confidence)
diff --git a/python/function.py b/python/function.py
index 8beebe66..3cd5396f 100644
--- a/python/function.py
+++ b/python/function.py
@@ -183,9 +183,11 @@ class Variable(object):
 		if name is None:
 			name = core.BNGetVariableName(func.handle, var)
 		if var_type is None:
-			var_type = core.BNGetVariableType(func.handle, var)
-			if var_type:
-				var_type = types.Type(var_type)
+			var_type_conf = core.BNGetVariableType(func.handle, var)
+			if var_type_conf.type:
+				var_type = types.Type(var_type, confidence = var_type_conf.confidence)
+			else:
+				var_type = None
 
 		self.name = name
 		self.type = var_type
@@ -390,7 +392,7 @@ class Function(object):
 		result = []
 		for i in xrange(0, count.value):
 			result.append(Variable(self, v[i].var.type, v[i].var.index, v[i].var.storage, v[i].name,
-				types.Type(handle = core.BNNewTypeReference(v[i].type))))
+				types.Type(handle = core.BNNewTypeReference(v[i].type), confidence = v[i].typeConfidence)))
 		result.sort(key = lambda x: x.identifier)
 		core.BNFreeVariableList(v, count.value)
 		return result
@@ -403,7 +405,7 @@ class Function(object):
 		result = []
 		for i in xrange(0, count.value):
 			result.append(Variable(self, v[i].var.type, v[i].var.index, v[i].var.storage, v[i].name,
-				types.Type(handle = core.BNNewTypeReference(v[i].type))))
+				types.Type(handle = core.BNNewTypeReference(v[i].type), confidence = v[i].typeConfidence)))
 		result.sort(key = lambda x: x.identifier)
 		core.BNFreeVariableList(v, count.value)
 		return result
@@ -616,7 +618,7 @@ class Function(object):
 		refs = core.BNGetStackVariablesReferencedByInstruction(self.handle, arch.handle, addr, count)
 		result = []
 		for i in xrange(0, count.value):
-			var_type = types.Type(core.BNNewTypeReference(refs[i].type))
+			var_type = types.Type(core.BNNewTypeReference(refs[i].type), confidence = refs[i].typeConfidence)
 			result.append(StackVariableReference(refs[i].sourceOperand, var_type,
 				refs[i].name, Variable.from_identifier(self, refs[i].varIdentifier, refs[i].name, var_type),
 				refs[i].referencedOffset))
@@ -730,8 +732,9 @@ class Function(object):
 				size = lines[i].tokens[j].size
 				operand = lines[i].tokens[j].operand
 				context = lines[i].tokens[j].context
+				confidence = lines[i].tokens[j].confidence
 				address = lines[i].tokens[j].address
-				tokens.append(InstructionTextToken(token_type, text, value, size, operand, context, address))
+				tokens.append(InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 			result.append(tokens)
 		core.BNFreeInstructionTextLines(lines, count.value)
 		return result
@@ -853,10 +856,16 @@ class Function(object):
 		core.BNSetUserInstructionHighlight(self.handle, arch.handle, addr, color._get_core_struct())
 
 	def create_auto_stack_var(self, offset, var_type, name):
-		core.BNCreateAutoStackVariable(self.handle, offset, var_type.handle, name)
+		tc = core.BNTypeWithConfidence()
+		tc.type = var_type.handle
+		tc.confidence = var_type.confidence
+		core.BNCreateAutoStackVariable(self.handle, offset, tc, name)
 
 	def create_user_stack_var(self, offset, var_type, name):
-		core.BNCreateUserStackVariable(self.handle, offset, var_type.handle, name)
+		tc = core.BNTypeWithConfidence()
+		tc.type = var_type.handle
+		tc.confidence = var_type.confidence
+		core.BNCreateUserStackVariable(self.handle, offset, tc, name)
 
 	def delete_auto_stack_var(self, offset):
 		core.BNDeleteAutoStackVariable(self.handle, offset)
@@ -869,14 +878,20 @@ class Function(object):
 		var_data.type = var.source_type
 		var_data.index = var.index
 		var_data.storage = var.storage
-		core.BNCreateAutoVariable(self.handle, var_data, var_type.handle, name, ignore_disjoint_uses)
+		tc = core.BNTypeWithConfidence()
+		tc.type = var_type.handle
+		tc.confidence = var_type.confidence
+		core.BNCreateAutoVariable(self.handle, var_data, tc, name, ignore_disjoint_uses)
 
 	def create_user_var(self, var, var_type, name, ignore_disjoint_uses = False):
 		var_data = core.BNVariable()
 		var_data.type = var.source_type
 		var_data.index = var.index
 		var_data.storage = var.storage
-		core.BNCreateUserVariable(self.handle, var_data, var_type.handle, name, ignore_disjoint_uses)
+		tc = core.BNTypeWithConfidence()
+		tc.type = var_type.handle
+		tc.confidence = var_type.confidence
+		core.BNCreateUserVariable(self.handle, var_data, tc, name, ignore_disjoint_uses)
 
 	def delete_auto_var(self, var):
 		var_data = core.BNVariable()
@@ -899,7 +914,7 @@ class Function(object):
 		if not core.BNGetStackVariableAtFrameOffset(self.handle, arch.handle, addr, offset, found_var):
 			return None
 		result = Variable(self, found_var.var.type, found_var.var.index, found_var.var.storage,
-			found_var.name, types.Type(handle = core.BNNewTypeReference(found_var.type)))
+			found_var.name, types.Type(handle = core.BNNewTypeReference(found_var.type), confidence = found_var.typeConfidence))
 		core.BNFreeVariableNameAndType(found_var)
 		return result
 
@@ -1043,8 +1058,9 @@ class FunctionGraphBlock(object):
 				size = lines[i].tokens[j].size
 				operand = lines[i].tokens[j].operand
 				context = lines[i].tokens[j].context
+				confidence = lines[i].tokens[j].confidence
 				address = lines[i].tokens[j].address
-				tokens.append(InstructionTextToken(token_type, text, value, size, operand, context, address))
+				tokens.append(InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 			result.append(DisassemblyTextLine(addr, tokens))
 		core.BNFreeDisassemblyTextLines(lines, count.value)
 		return result
@@ -1101,8 +1117,9 @@ class FunctionGraphBlock(object):
 					size = lines[i].tokens[j].size
 					operand = lines[i].tokens[j].operand
 					context = lines[i].tokens[j].context
+					confidence = lines[i].tokens[j].confidence
 					address = lines[i].tokens[j].address
-					tokens.append(InstructionTextToken(token_type, text, value, size, operand, context, address))
+					tokens.append(InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 				yield DisassemblyTextLine(addr, tokens)
 		finally:
 			core.BNFreeDisassemblyTextLines(lines, count.value)
@@ -1384,13 +1401,14 @@ class InstructionTextToken(object):
 
 	"""
 	def __init__(self, token_type, text, value = 0, size = 0, operand = 0xffffffff,
-		context = InstructionTextTokenContext.NoTokenContext, address = 0):
+		context = InstructionTextTokenContext.NoTokenContext, address = 0, confidence = types.Type.max_confidence):
 		self.type = InstructionTextTokenType(token_type)
 		self.text = text
 		self.value = value
 		self.size = size
 		self.operand = operand
 		self.context = InstructionTextTokenContext(context)
+		self.confidence = confidence
 		self.address = address
 
 	def __str__(self):
diff --git a/python/lowlevelil.py b/python/lowlevelil.py
index c359a79c..62e33a75 100644
--- a/python/lowlevelil.py
+++ b/python/lowlevelil.py
@@ -309,8 +309,9 @@ class LowLevelILInstruction(object):
 			size = tokens[i].size
 			operand = tokens[i].operand
 			context = tokens[i].context
+			confidence = tokens[i].confidence
 			address = tokens[i].address
-			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 		core.BNFreeInstructionText(tokens, count.value)
 		return result
 
diff --git a/python/mediumlevelil.py b/python/mediumlevelil.py
index 1274bd9b..275746cc 100644
--- a/python/mediumlevelil.py
+++ b/python/mediumlevelil.py
@@ -265,8 +265,9 @@ class MediumLevelILInstruction(object):
 			size = tokens[i].size
 			operand = tokens[i].operand
 			context = tokens[i].context
+			confidence = tokens[i].confidence
 			address = tokens[i].address
-			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 		core.BNFreeInstructionText(tokens, count.value)
 		return result
 
diff --git a/python/types.py b/python/types.py
index f8e416f4..c3d7156e 100644
--- a/python/types.py
+++ b/python/types.py
@@ -22,7 +22,7 @@ import ctypes
 
 # Binary Ninja components
 import _binaryninjacore as core
-from enums import SymbolType, TypeClass, NamedTypeReferenceClass, InstructionTextTokenType, StructureType
+from enums import SymbolType, TypeClass, NamedTypeReferenceClass, InstructionTextTokenType, StructureType, ReferenceType
 import callingconvention
 import function
 
@@ -198,8 +198,11 @@ class Symbol(object):
 
 
 class Type(object):
-	def __init__(self, handle):
+	max_confidence = 255
+
+	def __init__(self, handle, confidence = max_confidence):
 		self.handle = handle
+		self.confidence = confidence
 
 	def __del__(self):
 		core.BNFreeType(self.handle)
@@ -232,12 +235,14 @@ class Type(object):
 	@property
 	def signed(self):
 		"""Wether type is signed (read-only)"""
-		return core.BNIsTypeSigned(self.handle)
+		result = core.BNIsTypeSigned(self.handle)
+		return BoolWithConfidence(result.value, confidence = result.confidence)
 
 	@property
 	def const(self):
 		"""Whether type is const (read-only)"""
-		return core.BNIsTypeConst(self.handle)
+		result = core.BNIsTypeConst(self.handle)
+		return BoolWithConfidence(result.value, confidence = result.confidence)
 
 	@property
 	def modified(self):
@@ -248,33 +253,33 @@ class Type(object):
 	def target(self):
 		"""Target (read-only)"""
 		result = core.BNGetChildType(self.handle)
-		if result is None:
+		if not result.type:
 			return None
-		return Type(result)
+		return Type(result.type, confidence = result.confidence)
 
 	@property
 	def element_type(self):
 		"""Target (read-only)"""
 		result = core.BNGetChildType(self.handle)
-		if result is None:
+		if not result.type:
 			return None
-		return Type(result)
+		return Type(result.type, confidence = result.confidence)
 
 	@property
 	def return_value(self):
 		"""Return value (read-only)"""
 		result = core.BNGetChildType(self.handle)
-		if result is None:
+		if not result.type:
 			return None
-		return Type(result)
+		return Type(result.type, confidence = result.confidence)
 
 	@property
 	def calling_convention(self):
 		"""Calling convention (read-only)"""
 		result = core.BNGetTypeCallingConvention(self.handle)
-		if result is None:
+		if not result.convention:
 			return None
-		return callingconvention.CallingConvention(None, result)
+		return callingconvention.CallingConvention(None, result, confidence = result.confidence)
 
 	@property
 	def parameters(self):
@@ -283,7 +288,7 @@ class Type(object):
 		params = core.BNGetTypeParameters(self.handle, count)
 		result = []
 		for i in xrange(0, count.value):
-			result.append((Type(core.BNNewTypeReference(params[i].type)), params[i].name))
+			result.append((Type(core.BNNewTypeReference(params[i].type), confidence = params[i].typeConfidence), params[i].name))
 		core.BNFreeTypeParameterList(params, count.value)
 		return result
 
@@ -295,7 +300,8 @@ class Type(object):
 	@property
 	def can_return(self):
 		"""Whether type can return (read-only)"""
-		return core.BNFunctionTypeCanReturn(self.handle)
+		result = core.BNFunctionTypeCanReturn(self.handle)
+		return BoolWithConfidence(result.value, confidence = result.confidence)
 
 	@property
 	def structure(self):
@@ -330,6 +336,8 @@ class Type(object):
 		return core.BNGetTypeString(self.handle)
 
 	def __repr__(self):
+		if self.confidence < Type.max_confidence:
+			return "<type: %s, %d%% confidence>" % (str(self), (self.confidence * 100) / Type.max_confidence)
 		return "<type: %s>" % str(self)
 
 	def get_string_before_name(self):
@@ -351,8 +359,9 @@ class Type(object):
 			size = tokens[i].size
 			operand = tokens[i].operand
 			context = tokens[i].context
+			confidence = tokens[i].confidence
 			address = tokens[i].address
-			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 		core.BNFreeTokenList(tokens, count.value)
 		return result
 
@@ -367,8 +376,9 @@ class Type(object):
 			size = tokens[i].size
 			operand = tokens[i].operand
 			context = tokens[i].context
+			confidence = tokens[i].confidence
 			address = tokens[i].address
-			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 		core.BNFreeTokenList(tokens, count.value)
 		return result
 
@@ -383,8 +393,9 @@ class Type(object):
 			size = tokens[i].size
 			operand = tokens[i].operand
 			context = tokens[i].context
+			confidence = tokens[i].confidence
 			address = tokens[i].address
-			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address))
+			result.append(function.InstructionTextToken(token_type, text, value, size, operand, context, address, confidence))
 		core.BNFreeTokenList(tokens, count.value)
 		return result
 
@@ -397,14 +408,23 @@ class Type(object):
 		return Type(core.BNCreateBoolType())
 
 	@classmethod
-	def int(self, width, sign = True, altname=""):
+	def int(self, width, sign = None, altname=""):
 		"""
 		``int`` class method for creating an int Type.
 
 		:param int width: width of the integer in bytes
 		:param bool sign: optional variable representing signedness
 		"""
-		return Type(core.BNCreateIntegerType(width, sign, altname))
+		if sign is None:
+			sign = BoolWithConfidence(True, confidence = 0)
+		elif not isinstance(sign, BoolWithConfidence):
+			sign = BoolWithConfidence(sign)
+
+		sign_conf = core.BNBoolWithConfidence()
+		sign_conf.value = sign.value
+		sign_conf.confidence = sign.confidence
+
+		return Type(core.BNCreateIntegerType(width, sign_conf, altname))
 
 	@classmethod
 	def float(self, width):
@@ -444,12 +464,40 @@ class Type(object):
 		return Type(core.BNCreateEnumerationType(e.handle, width))
 
 	@classmethod
-	def pointer(self, arch, t, const=False):
-		return Type(core.BNCreatePointerType(arch.handle, t.handle, const))
+	def pointer(self, arch, t, const=None, volatile=None, ref_type=None):
+		if const is None:
+			const = BoolWithConfidence(False, confidence = 0)
+		elif not isinstance(const, BoolWithConfidence):
+			const = BoolWithConfidence(const)
+
+		if volatile is None:
+			volatile = BoolWithConfidence(False, confidence = 0)
+		elif not isinstance(volatile, BoolWithConfidence):
+			volatile = BoolWithConfidence(volatile)
+
+		if ref_type is None:
+			ref_type = ReferenceType.PointerReferenceType
+
+		type_conf = core.BNTypeWithConfidence()
+		type_conf.type = t.handle
+		type_conf.confidence = t.confidence
+
+		const_conf = core.BNBoolWithConfidence()
+		const_conf.value = const.value
+		const_conf.confidence = const.confidence
+
+		volatile_conf = core.BNBoolWithConfidence()
+		volatile_conf.value = volatile.value
+		volatile_conf.confidence = volatile.confidence
+
+		return Type(core.BNCreatePointerType(arch.handle, type_conf, const_conf, volatile_conf, ref_type))
 
 	@classmethod
 	def array(self, t, count):
-		return Type(core.BNCreateArrayType(t.handle, count))
+		type_conf = core.BNTypeWithConfidence()
+		type_conf.type = t.handle
+		type_conf.confidence = t.confidence
+		return Type(core.BNCreateArrayType(type_conf, count))
 
 	@classmethod
 	def function(self, ret, params, calling_convention=None, variable_arguments=False):
@@ -466,13 +514,26 @@ class Type(object):
 			if isinstance(params[i], Type):
 				param_buf[i].name = ""
 				param_buf[i].type = params[i].handle
+				param_buf[i].typeConfidence = params[i].confidence
 			else:
 				param_buf[i].name = params[i][1]
-				param_buf[i].type = params[i][0]
-		if calling_convention is not None:
-			calling_convention = calling_convention.handle
-		return Type(core.BNCreateFunctionType(ret.handle, calling_convention, param_buf, len(params),
-			  variable_arguments))
+				param_buf[i].type = params[i][0].handle
+				param_buf[i].typeConfidence = params[i][0].confidence
+
+		ret_conf = core.BNTypeWithConfidence()
+		ret_conf.type = ret.handle
+		ret_conf.confidence = ret.confidence
+
+		conv_conf = core.BNCallingConventionWithConfidence()
+		if calling_convention is None:
+			conv_conf.convention = None
+			conv_conf.confidence = 0
+		else:
+			conv_conf.convention = calling_convention.handle
+			conv_conf.confidence = calling_convention.confidence
+
+		return Type(core.BNCreateFunctionType(ret_conf, conv_conf, param_buf, len(params),
+			variable_arguments))
 
 	@classmethod
 	def generate_auto_type_id(self, source, name):
@@ -488,6 +549,9 @@ class Type(object):
 	def get_auto_demanged_type_id_source(self):
 		return core.BNGetAutoDemangledTypeIdSource()
 
+	def with_confidence(self, confidence):
+		return Type(handle = core.BNNewTypeReference(self.handle), confidence = confidence)
+
 	def __setattr__(self, name, value):
 		try:
 			object.__setattr__(self, name, value)
@@ -495,6 +559,36 @@ class Type(object):
 			raise AttributeError("attribute '%s' is read only" % name)
 
 
+class BoolWithConfidence(object):
+	def __init__(self, value, confidence = Type.max_confidence):
+		self.value = value
+		self.confidence = confidence
+
+	def __str__(self):
+		return str(self.value)
+
+	def __repr__(self):
+		return repr(self.value)
+
+	def __bool__(self):
+		return self.value
+
+	def __nonzero__(self):
+		return self.value
+
+
+class ReferenceTypeWithConfidence(object):
+	def __init__(self, value, confidence = Type.max_confidence):
+		self.value = value
+		self.confidence = confidence
+
+	def __str__(self):
+		return str(self.value)
+
+	def __repr__(self):
+		return repr(self.value)
+
+
 class NamedTypeReference(object):
 	def __init__(self, type_class = NamedTypeReferenceClass.UnknownNamedTypeClass, type_id = None, name = None, handle = None):
 		if handle is None:
@@ -611,7 +705,7 @@ class Structure(object):
 		members = core.BNGetStructureMembers(self.handle, count)
 		result = []
 		for i in xrange(0, count.value):
-			result.append(StructureMember(Type(core.BNNewTypeReference(members[i].type)),
+			result.append(StructureMember(Type(core.BNNewTypeReference(members[i].type), confidence = members[i].typeConfidence),
 				members[i].name, members[i].offset))
 		core.BNFreeStructureMemberList(members, count.value)
 		return result
@@ -664,16 +758,25 @@ class Structure(object):
 		return "<struct: size %#x>" % self.width
 
 	def append(self, t, name = ""):
-		core.BNAddStructureMember(self.handle, t.handle, name)
+		tc = core.BNTypeWithConfidence()
+		tc.type = t.handle
+		tc.confidence = t.confidence
+		core.BNAddStructureMember(self.handle, tc, name)
 
 	def insert(self, offset, t, name = ""):
-		core.BNAddStructureMemberAtOffset(self.handle, t.handle, name, offset)
+		tc = core.BNTypeWithConfidence()
+		tc.type = t.handle
+		tc.confidence = t.confidence
+		core.BNAddStructureMemberAtOffset(self.handle, tc, name, offset)
 
 	def remove(self, i):
 		core.BNRemoveStructureMember(self.handle, i)
 
 	def replace(self, i, t, name = ""):
-		core.BNReplaceStructureMember(self.handle, i, t.handle, name)
+		tc = core.BNTypeWithConfidence()
+		tc.type = t.handle
+		tc.confidence = t.confidence
+		core.BNReplaceStructureMember(self.handle, i, tc, name)
 
 
 class EnumerationMember(object):
diff --git a/type.cpp b/type.cpp
index 6e55bb69..837b212d 100644
--- a/type.cpp
+++ b/type.cpp
@@ -261,15 +261,17 @@ size_t Type::GetAlignment() const
 }
 
 
-bool Type::IsSigned() const
+Confidence<bool> Type::IsSigned() const
 {
-	return BNIsTypeSigned(m_object);
+	BNBoolWithConfidence result = BNIsTypeSigned(m_object);
+	return Confidence<bool>(result.value, result.confidence);
 }
 
 
-bool Type::IsConst() const
+Confidence<bool> Type::IsConst() const
 {
-	return BNIsTypeConst(m_object);
+	BNBoolWithConfidence result = BNIsTypeConst(m_object);
+	return Confidence<bool>(result.value, result.confidence);
 }
 
 
@@ -279,56 +281,70 @@ bool Type::IsFloat() const
 }
 
 
-BNMemberScope Type::GetScope() const
+Confidence<BNMemberScope> Type::GetScope() const
 {
-	return BNTypeGetMemberScope(m_object);
+	BNMemberScopeWithConfidence result = BNTypeGetMemberScope(m_object);
+	return Confidence<BNMemberScope>(result.value, result.confidence);
 }
 
 
-void Type::SetScope(BNMemberScope scope)
+void Type::SetScope(const Confidence<BNMemberScope>& scope)
 {
-	return BNTypeSetMemberScope(m_object, scope);
+	BNMemberScopeWithConfidence mc;
+	mc.value = scope.GetValue();
+	mc.confidence = scope.GetConfidence();
+	return BNTypeSetMemberScope(m_object, &mc);
 }
 
 
-BNMemberAccess Type::GetAccess() const
+Confidence<BNMemberAccess> Type::GetAccess() const
 {
-	return BNTypeGetMemberAccess(m_object);
+	BNMemberAccessWithConfidence result = BNTypeGetMemberAccess(m_object);
+	return Confidence<BNMemberAccess>(result.value, result.confidence);
 }
 
 
-void Type::SetAccess(BNMemberAccess access)
+void Type::SetAccess(const Confidence<BNMemberAccess>& access)
 {
-	return BNTypeSetMemberAccess(m_object, access);
+	BNMemberAccessWithConfidence mc;
+	mc.value = access.GetValue();
+	mc.confidence = access.GetConfidence();
+	return BNTypeSetMemberAccess(m_object, &mc);
 }
 
 
-void Type::SetConst(bool cnst)
+void Type::SetConst(const Confidence<bool>& cnst)
 {
-	BNTypeSetConst(m_object, cnst);
+	BNBoolWithConfidence bc;
+	bc.value = cnst.GetValue();
+	bc.confidence = cnst.GetConfidence();
+	BNTypeSetConst(m_object, &bc);
 }
 
 
-void Type::SetVolatile(bool vltl)
+void Type::SetVolatile(const Confidence<bool>& vltl)
 {
-	BNTypeSetVolatile(m_object, vltl);
+	BNBoolWithConfidence bc;
+	bc.value = vltl.GetValue();
+	bc.confidence = vltl.GetConfidence();
+	BNTypeSetVolatile(m_object, &bc);
 }
 
 
-Ref<Type> Type::GetChildType() const
+Confidence<Ref<Type>> Type::GetChildType() const
 {
-	BNType* type = BNGetChildType(m_object);
-	if (type)
-		return new Type(type);
+	BNTypeWithConfidence type = BNGetChildType(m_object);
+	if (type.type)
+		return Confidence<Ref<Type>>(new Type(type.type), type.confidence);
 	return nullptr;
 }
 
 
-Ref<CallingConvention> Type::GetCallingConvention() const
+Confidence<Ref<CallingConvention>> Type::GetCallingConvention() const
 {
-	BNCallingConvention* cc = BNGetTypeCallingConvention(m_object);
-	if (cc)
-		return new CoreCallingConvention(cc);
+	BNCallingConventionWithConfidence cc = BNGetTypeCallingConvention(m_object);
+	if (cc.convention)
+		return Confidence<Ref<CallingConvention>>(new CoreCallingConvention(cc.convention), cc.confidence);
 	return nullptr;
 }
 
@@ -343,7 +359,7 @@ vector<NameAndType> Type::GetParameters() const
 	{
 		NameAndType param;
 		param.name = types[i].name;
-		param.type = new Type(BNNewTypeReference(types[i].type));
+		param.type = Confidence<Ref<Type>>(new Type(BNNewTypeReference(types[i].type)), types[i].typeConfidence);
 		result.push_back(param);
 	}
 
@@ -358,9 +374,10 @@ bool Type::HasVariableArguments() const
 }
 
 
-bool Type::CanReturn() const
+Confidence<bool> Type::CanReturn() const
 {
-	return BNFunctionTypeCanReturn(m_object);
+	BNBoolWithConfidence result = BNFunctionTypeCanReturn(m_object);
+	return Confidence<bool>(result.value, result.confidence);
 }
 
 
@@ -447,6 +464,7 @@ vector<InstructionTextToken> Type::GetTokens() const
 		token.size = tokens[i].size;
 		token.operand = tokens[i].operand;
 		token.context = tokens[i].context;
+		token.confidence = tokens[i].confidence;
 		token.address = tokens[i].address;
 		result.push_back(token);
 	}
@@ -471,6 +489,7 @@ vector<InstructionTextToken> Type::GetTokensBeforeName() const
 		token.size = tokens[i].size;
 		token.operand = tokens[i].operand;
 		token.context = tokens[i].context;
+		token.confidence = tokens[i].confidence;
 		token.address = tokens[i].address;
 		result.push_back(token);
 	}
@@ -495,6 +514,7 @@ vector<InstructionTextToken> Type::GetTokensAfterName() const
 		token.size = tokens[i].size;
 		token.operand = tokens[i].operand;
 		token.context = tokens[i].context;
+		token.confidence = tokens[i].confidence;
 		token.address = tokens[i].address;
 		result.push_back(token);
 	}
@@ -522,9 +542,12 @@ Ref<Type> Type::BoolType()
 }
 
 
-Ref<Type> Type::IntegerType(size_t width, bool sign, const string& altName)
+Ref<Type> Type::IntegerType(size_t width, const Confidence<bool>& sign, const string& altName)
 {
-	return new Type(BNCreateIntegerType(width, sign, altName.c_str()));
+	BNBoolWithConfidence bc;
+	bc.value = sign.GetValue();
+	bc.confidence = sign.GetConfidence();
+	return new Type(BNCreateIntegerType(width, &bc, altName.c_str()));
 }
 
 
@@ -577,45 +600,86 @@ Ref<Type> Type::EnumerationType(Architecture* arch, Enumeration* enm, size_t wid
 }
 
 
-Ref<Type> Type::PointerType(Architecture* arch, Type* type, bool cnst, bool vltl, BNReferenceType refType)
+Ref<Type> Type::PointerType(Architecture* arch, const Confidence<Ref<Type>>& type,
+	const Confidence<bool>& cnst, const Confidence<bool>& vltl, BNReferenceType refType)
 {
-	return new Type(BNCreatePointerType(arch->GetObject(), type->GetObject(), cnst, vltl, refType));
+	BNTypeWithConfidence typeConf;
+	typeConf.type = type->GetObject();
+	typeConf.confidence = type.GetConfidence();
+
+	BNBoolWithConfidence cnstConf;
+	cnstConf.value = cnst.GetValue();
+	cnstConf.confidence = cnst.GetConfidence();
+
+	BNBoolWithConfidence vltlConf;
+	vltlConf.value = vltl.GetValue();
+	vltlConf.confidence = vltl.GetConfidence();
+
+	return new Type(BNCreatePointerType(arch->GetObject(), &typeConf, &cnstConf, &vltlConf, refType));
 }
 
 
-Ref<Type> Type::PointerType(size_t width, Type* type, bool cnst, bool vltl, BNReferenceType refType)
+Ref<Type> Type::PointerType(size_t width, const Confidence<Ref<Type>>& type,
+	const Confidence<bool>& cnst, const Confidence<bool>& vltl, BNReferenceType refType)
 {
-	return new Type(BNCreatePointerTypeOfWidth(width, type->GetObject(), cnst, vltl, refType));
+	BNTypeWithConfidence typeConf;
+	typeConf.type = type->GetObject();
+	typeConf.confidence = type.GetConfidence();
+
+	BNBoolWithConfidence cnstConf;
+	cnstConf.value = cnst.GetValue();
+	cnstConf.confidence = cnst.GetConfidence();
+
+	BNBoolWithConfidence vltlConf;
+	vltlConf.value = vltl.GetValue();
+	vltlConf.confidence = vltl.GetConfidence();
+
+	return new Type(BNCreatePointerTypeOfWidth(width, &typeConf, &cnstConf, &vltlConf, refType));
 }
 
 
-Ref<Type> Type::ArrayType(Type* type, uint64_t elem)
+Ref<Type> Type::ArrayType(const Confidence<Ref<Type>>& type, uint64_t elem)
 {
-	return new Type(BNCreateArrayType(type->GetObject(), elem));
+	BNTypeWithConfidence typeConf;
+	typeConf.type = type->GetObject();
+	typeConf.confidence = type.GetConfidence();
+	return new Type(BNCreateArrayType(&typeConf, elem));
 }
 
 
-Ref<Type> Type::FunctionType(Type* returnValue, CallingConvention* callingConvention,
-                             const std::vector<NameAndType>& params, bool varArg)
+Ref<Type> Type::FunctionType(const Confidence<Ref<Type>>& returnValue,
+	const Confidence<Ref<CallingConvention>>& callingConvention,
+	const std::vector<NameAndType>& params, bool varArg)
 {
+	BNTypeWithConfidence returnValueConf;
+	returnValueConf.type = returnValue->GetObject();
+	returnValueConf.confidence = returnValue.GetConfidence();
+
+	BNCallingConventionWithConfidence callingConventionConf;
+	callingConventionConf.convention = callingConvention ? callingConvention->GetObject() : nullptr;
+	callingConventionConf.confidence = callingConvention.GetConfidence();
+
 	BNNameAndType* paramArray = new BNNameAndType[params.size()];
 	for (size_t i = 0; i < params.size(); i++)
 	{
 		paramArray[i].name = (char*)params[i].name.c_str();
 		paramArray[i].type = params[i].type->GetObject();
+		paramArray[i].typeConfidence = params[i].type.GetConfidence();
 	}
 
-	Type* type = new Type(BNCreateFunctionType(returnValue->GetObject(),
-	                      callingConvention ? callingConvention->GetObject() : nullptr,
-	                      paramArray, params.size(), varArg));
+	Type* type = new Type(BNCreateFunctionType(&returnValueConf, &callingConventionConf,
+		paramArray, params.size(), varArg));
 	delete[] paramArray;
 	return type;
 }
 
 
-void Type::SetFunctionCanReturn(bool canReturn)
+void Type::SetFunctionCanReturn(const Confidence<bool>& canReturn)
 {
-	BNSetFunctionCanReturn(m_object, canReturn);
+	BNBoolWithConfidence bc;
+	bc.value = canReturn.GetValue();
+	bc.confidence = canReturn.GetConfidence();
+	BNSetFunctionCanReturn(m_object, &bc);
 }
 
 
@@ -687,6 +751,12 @@ void Type::SetTypeName(const QualifiedName& names)
 }
 
 
+Confidence<Ref<Type>> Type::WithConfidence(uint8_t conf)
+{
+	return Confidence<Ref<Type>>(this, conf);
+}
+
+
 NamedTypeReference::NamedTypeReference(BNNamedTypeReference* nt)
 {
 	m_object = nt;
@@ -870,15 +940,21 @@ BNStructureType Structure::GetStructureType() const
 }
 
 
-void Structure::AddMember(Type* type, const string& name)
+void Structure::AddMember(const Confidence<Ref<Type>>& type, const string& name)
 {
-	BNAddStructureMember(m_object, type->GetObject(), name.c_str());
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNAddStructureMember(m_object, &tc, name.c_str());
 }
 
 
-void Structure::AddMemberAtOffset(Type* type, const string& name, uint64_t offset)
+void Structure::AddMemberAtOffset(const Confidence<Ref<Type>>& type, const string& name, uint64_t offset)
 {
-	BNAddStructureMemberAtOffset(m_object, type->GetObject(), name.c_str(), offset);
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNAddStructureMemberAtOffset(m_object, &tc, name.c_str(), offset);
 }
 
 
@@ -888,9 +964,12 @@ void Structure::RemoveMember(size_t idx)
 }
 
 
-void Structure::ReplaceMember(size_t idx, Type* type, const std::string& name)
+void Structure::ReplaceMember(size_t idx, const Confidence<Ref<Type>>& type, const std::string& name)
 {
-	BNReplaceStructureMember(m_object, idx, type->GetObject(), name.c_str());
+	BNTypeWithConfidence tc;
+	tc.type = type->GetObject();
+	tc.confidence = type.GetConfidence();
+	BNReplaceStructureMember(m_object, idx, &tc, name.c_str());
 }