diff --git a/src/CppParser/AST.cpp b/src/CppParser/AST.cpp
index f5359d0e..bf58c93d 100644
--- a/src/CppParser/AST.cpp
+++ b/src/CppParser/AST.cpp
@@ -34,6 +34,8 @@ static std::vector<T> split(const T & str, const T & delimiters) {
 namespace CppSharp { namespace CppParser { namespace AST {
 
 Type::Type(TypeKind kind) : Kind(kind) {}
+Type::Type(const Type& rhs) : Kind(rhs.Kind), IsDependent(rhs.IsDependent) {}
+
 QualifiedType::QualifiedType() : Type(0) {}
 
 TagType::TagType() : Type(TypeKind::Tag) {}
@@ -57,9 +59,16 @@ TemplateArgument::TemplateArgument() : Declaration(0) {}
 
 TemplateSpecializationType::TemplateSpecializationType()
     : Type(TypeKind::TemplateSpecialization), Template(0), Desugared(0) {}
+TemplateSpecializationType::TemplateSpecializationType(
+    const TemplateSpecializationType& rhs) : Type(rhs),
+    Arguments(rhs.Arguments), Template(rhs.Template), Desugared(rhs.Desugared) {}
+
 DEF_VECTOR(TemplateSpecializationType, TemplateArgument, Arguments)
 
 // TemplateParameter
+TemplateParameter::TemplateParameter() {}
+TemplateParameter::TemplateParameter(const TemplateParameter& rhs) : Name(rhs.Name) {}
+
 DEF_STRING(TemplateParameter, Name)
 
 TemplateParameterType::TemplateParameterType() : Type(TypeKind::TemplateParameter) {}
@@ -80,9 +89,14 @@ VTableComponent::VTableComponent() : Offset(0), Declaration(0) {}
 
 // VTableLayout
 VTableLayout::VTableLayout() {}
+VTableLayout::VTableLayout(const VTableLayout& rhs) : Components(rhs.Components) {}
+
 DEF_VECTOR(VTableLayout, VTableComponent, Components)
 
 VFTableInfo::VFTableInfo() : VBTableIndex(0), VFPtrOffset(0), VFPtrFullOffset(0) {}
+VFTableInfo::VFTableInfo(const VFTableInfo& rhs) : VBTableIndex(rhs.VBTableIndex),
+    VFPtrOffset(rhs.VFPtrOffset), VFPtrFullOffset(rhs.VFPtrFullOffset),
+    Layout(rhs.Layout) {}
 
 ClassLayout::ClassLayout() : ABI(CppAbi::Itanium), HasOwnVFPtr(false),
     VBPtrOffset(0), Alignment(0), Size(0), DataSize(0) {}
diff --git a/src/CppParser/AST.h b/src/CppParser/AST.h
index 3a40cf48..e09632e3 100644
--- a/src/CppParser/AST.h
+++ b/src/CppParser/AST.h
@@ -38,6 +38,8 @@ enum struct TypeKind
 struct CS_API Type
 {
     Type(TypeKind kind);
+    Type(const Type&);
+
     TypeKind Kind;
     bool IsDependent;
 };
@@ -171,6 +173,8 @@ struct Template;
 struct CS_API TemplateSpecializationType : public Type
 {
     TemplateSpecializationType();
+    TemplateSpecializationType(const TemplateSpecializationType&);
+
     VECTOR(TemplateArgument, Arguments)
     CppSharp::CppParser::AST::Template* Template;
     Type* Desugared;
@@ -178,6 +182,9 @@ struct CS_API TemplateSpecializationType : public Type
 
 struct CS_API TemplateParameter
 {
+    TemplateParameter();
+    TemplateParameter(const TemplateParameter&);
+
     bool operator==(const TemplateParameter& param) const
     {
         return Name == param.Name;
@@ -278,12 +285,14 @@ struct CS_API VTableComponent
 struct CS_API VTableLayout
 {
     VTableLayout();
+    VTableLayout(const VTableLayout&);
     VECTOR(VTableComponent, Components)
 };
 
 struct CS_API VFTableInfo
 {
     VFTableInfo();
+    VFTableInfo(const VFTableInfo&);
     uint64_t VBTableIndex;
     uint32_t VFPtrOffset;
     uint32_t VFPtrFullOffset;
diff --git a/src/CppParser/CppParser.cpp b/src/CppParser/CppParser.cpp
index 723bcda3..22bcc664 100644
--- a/src/CppParser/CppParser.cpp
+++ b/src/CppParser/CppParser.cpp
@@ -35,8 +35,23 @@ ParserResult::ParserResult()
 {
 }
 
+ParserResult::ParserResult(const ParserResult& rhs)
+    : Kind(rhs.Kind)
+    , Diagnostics(rhs.Diagnostics)
+    , ASTContext(rhs.ASTContext)
+    , Library(rhs.Library)
+{}
+
 ParserDiagnostic::ParserDiagnostic() {}
 
+ParserDiagnostic::ParserDiagnostic(const ParserDiagnostic& rhs)
+    : FileName(rhs.FileName)
+    , Message(rhs.Message)
+    , Level(rhs.Level)
+    , LineNumber(rhs.LineNumber)
+    , ColumnNumber(rhs.ColumnNumber)
+{}
+
 DEF_STRING(ParserDiagnostic, FileName)
 DEF_STRING(ParserDiagnostic, Message)
 
diff --git a/src/CppParser/CppParser.h b/src/CppParser/CppParser.h
index a105cc6f..a44dbfd5 100644
--- a/src/CppParser/CppParser.h
+++ b/src/CppParser/CppParser.h
@@ -54,6 +54,8 @@ enum struct ParserDiagnosticLevel
 struct CS_API ParserDiagnostic
 {
     ParserDiagnostic();
+    ParserDiagnostic(const ParserDiagnostic&);
+
     STRING(FileName)
     STRING(Message)
     ParserDiagnosticLevel Level;
@@ -71,6 +73,7 @@ enum struct ParserResultKind
 struct CS_API ParserResult
 {
     ParserResult();
+    ParserResult(const ParserResult&);
 
     ParserResultKind Kind;
     VECTOR(ParserDiagnostic, Diagnostics)