Code generation for access to contract code.

libsolidity/ast/Types.cpp

@@ -3455,3 +3455,10 @@ string MagicType::toString(bool _short) const
 	solAssert(false, "Unknown kind of magic.");
 	return {};
 }
+
+TypePointer MagicType::typeArgument() const
+{
+	solAssert(m_kind == Kind::MetaType, "");
+	solAssert(m_typeArgument, "");
+	return m_typeArgument;
+}

libsolidity/ast/Types.h

@@ -1335,6 +1335,8 @@ public:
 
 	Kind kind() const { return m_kind; }
 
+	TypePointer typeArgument() const;
+
 private:
 	Kind m_kind;
 	/// Contract type used for contract metadata magic.