Make Type methods be pure virtual

Author: kornilova203

bindgen/ir/types/Type.cpp

@@ -1,12 +1,3 @@
 #include "Type.h"
 
-std::string Type::str() const { return ""; }
-
-bool Type::usesType(const std::shared_ptr<Type> &type,
-                    bool stopOnTypeDefs) const {
-    return false;
-}
-
-bool Type::operator==(const Type &other) const { return false; }
-
 bool Type::operator!=(const Type &other) const { return !(*this == other); }

bindgen/ir/types/Type.h

@@ -11,7 +11,7 @@ class Type {
   public:
     virtual ~Type() = default;
 
-    virtual std::string str() const;
+    virtual std::string str() const = 0;
 
     /**
      * @param stopOnTypeDefs if this parameter is true then TypeDefs instances
@@ -21,9 +21,9 @@ class Type {
      *                       typedef are found.
      */
     virtual bool usesType(const std::shared_ptr<Type> &type,
-                          bool stopOnTypeDefs) const;
+                          bool stopOnTypeDefs) const = 0;
 
-    virtual bool operator==(const Type &other) const;
+    virtual bool operator==(const Type &other) const = 0;
 
     virtual bool operator!=(const Type &other) const;
 };