diff --git a/Makefile b/Makefile
index 0f0b78e..a305d21 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@
 CC = g++
 
 # Compiler flags
-CFLAGS = -Wall -Wextra -std=c++17 -Wno-unused-variable -Wno-unused-parameter
+CFLAGS = -Wall -Wextra -std=c++17 -Wno-unused-variable -Wno-unused-parameter -Wno-switch
 
 # Source directory
 SRC_DIR = ./source
diff --git a/headers/Lexer.h b/headers/Lexer.h
index a582c7e..7c6be66 100644
--- a/headers/Lexer.h
+++ b/headers/Lexer.h
@@ -23,6 +23,23 @@ enum TokenType{
     END_OF_FILE
 };
 
+inline std::string enum_mapping[] = {"OPEN_PAREN", "CLOSE_PAREN", "OPEN_BRACE", "CLOSE_BRACE",
+                           "COMMA", "DOT", "MINUS", "PLUS", "SEMICOLON", "SLASH", "STAR",
+
+                           "BINARY_OP",
+
+                           "BANG", "BANG_EQUAL",
+                           "EQUAL", "DOUBLE_EQUAL",
+                           "GREATER", "GREATER_EQUAL",
+                           "LESS", "LESS_EQUAL",
+
+                           "IDENTIFIER", "STRING", "NUMBER",
+
+                           "AND", "OR", "TRUE", "FALSE", "IF", "ELSE", "FUNCTION", "FOR",
+                           "WHILE", "VAR", "CLASS", "SUPER", "THIS", "NONE", "RETURN",
+
+                           "END_OF_FILE"};
+
 const std::map<std::string, TokenType> KEYWORDS {
         {"and", AND},
         {"or", OR},
diff --git a/source/Interpreter.cpp b/source/Interpreter.cpp
index f77dbbb..03fe954 100644
--- a/source/Interpreter.cpp
+++ b/source/Interpreter.cpp
@@ -24,6 +24,8 @@ sptr(Object) Interpreter::visitLiteralExpr(sptr(LiteralExpr) expr) {
         }
         return msptr(Number)(num);
     }
+    if(expr->value == "true") return msptr(Boolean)(true);
+    if(expr->value == "false") return msptr(Boolean)(false);
     return msptr(String)(expr->value);
 }
 
@@ -55,6 +57,9 @@ sptr(Object) Interpreter::visitUnaryExpr(sptr(UnaryExpr) expression)
         return msptr(Boolean)(!isTruthy(right));
     }
 
+    //unreachable
+    throw std::runtime_error("Invalid unary expression");
+
 }
 
 sptr(Object) Interpreter::visitBinaryExpr(sptr(BinaryExpr) expression) 
@@ -145,7 +150,7 @@ bool Interpreter::isTruthy(sptr(Object) object) {
 
     if(auto boolean = std::dynamic_pointer_cast<Boolean>(object))
     {
-        boolean->value;
+        return boolean->value;
     }
 
     if(auto obj = std::dynamic_pointer_cast<None>(object))
@@ -193,6 +198,8 @@ bool Interpreter::isEqual(sptr(Object) a, sptr(Object) b) {
 
         return false;
     }
+
+    throw std::runtime_error("Invalid isEqual compariosn");
 }
 
 void Interpreter::interpret(std::shared_ptr<Expr> expr) {
@@ -239,6 +246,8 @@ std::string Interpreter::stringify(std::shared_ptr<Object> object) {
     {
         return Bool->value == 1 ? "true" : "false";
     }
+
+    throw std::runtime_error("Could not convert object to string");
 }
 
 bool Interpreter::isWholeNumer(double num) {
diff --git a/source/Lexer.cpp b/source/Lexer.cpp
index 50ed1f5..507e15f 100644
--- a/source/Lexer.cpp
+++ b/source/Lexer.cpp
@@ -287,6 +287,8 @@ char Lexer::peekNext()
     {
         return src[1];
     }
+
+    return '\0';
 }
 
 
diff --git a/source/Parser.cpp b/source/Parser.cpp
index 131e714..cf17b39 100644
--- a/source/Parser.cpp
+++ b/source/Parser.cpp
@@ -83,7 +83,7 @@ sptr(Expr) Parser::unary()
 
 sptr(Expr) Parser::primary()
 {
-    if(match({FALSE})) return msptr(LiteralExpr)("true", false, false);
+    if(match({FALSE})) return msptr(LiteralExpr)("false", false, false);
     if(match({TRUE})) return msptr(LiteralExpr)("true", false, false);
     if(match({NONE})) return msptr(LiteralExpr)("none", false, false);
 
diff --git a/source/bob.cpp b/source/bob.cpp
index 247b20b..2c3f588 100644
--- a/source/bob.cpp
+++ b/source/bob.cpp
@@ -58,7 +58,7 @@ void Bob::run(string source)
         //cout << dynamic_pointer_cast<String>(printer.print(expr))->value << endl;
 
         for(Token t : tokens){
-            //cout << "{type: " << t.type << ", value: " << t.lexeme << "}" << endl;
+            //cout << "{type: " << enum_mapping[t.type] << ", value: " << t.lexeme << "}" << endl;
         }