Better statement errors parsing

src/Error.h

@@ -3,19 +3,41 @@
 
 #include <iostream>
 
+class Token;
+enum class TokenKind;
+
 using namespace std;
 
+enum class ErrorKind {
+    LEXER_ERROR,
+    PARSER_ERROR
+};
+
 class Error {
 private:
+    ErrorKind kind;
+
     int line;
     int column;
     string lexme;
 
+    shared_ptr<Token> actualToken;
+    optional<TokenKind> expectedTokenKind;
+    optional<string> message;
+
 public:
     Error(int line, int column, string lexme);
+    Error(shared_ptr<Token> actualToken, optional<TokenKind> expectedTokenKind, optional<string> message);
+
+    ErrorKind getKind();
+
     int getLine();
     int getColumn();
     string getLexme();
+
+    shared_ptr<Token> getActualToken();
+    optional<TokenKind> getExpectedTokenKind();
+    optional<string> getMessage();
 };
 
 #endif