diff --git a/src/Parser/Expression/Expression.cpp b/src/Parser/Expression/Expression.cpp
index 6e5a91c..5a3b580 100644
--- a/src/Parser/Expression/Expression.cpp
+++ b/src/Parser/Expression/Expression.cpp
@@ -15,7 +15,3 @@ ValueType Expression::getValueType() {
 bool Expression::isValid() {
     return kind != ExpressionKind::INVALID;
 }
-
-string Expression::toString(int indent) {
-    return "EXPRESSION";
-}
diff --git a/src/Parser/Expression/Expression.h b/src/Parser/Expression/Expression.h
index ccc92d5..2749e52 100644
--- a/src/Parser/Expression/Expression.h
+++ b/src/Parser/Expression/Expression.h
@@ -28,10 +28,10 @@ protected:
 
 public:
     Expression(ExpressionKind kind, ValueType valueType);
+    virtual ~Expression() { }
     ExpressionKind getKind();
     ValueType getValueType();
     bool isValid();
-    virtual string toString(int indent);
 };
 
 #endif
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionBinary.cpp b/src/Parser/Expression/ExpressionBinary.cpp
index bd062b9..29a42be 100644
--- a/src/Parser/Expression/ExpressionBinary.cpp
+++ b/src/Parser/Expression/ExpressionBinary.cpp
@@ -71,30 +71,3 @@ shared_ptr<Expression> ExpressionBinary::getLeft() {
 shared_ptr<Expression> ExpressionBinary::getRight() {
     return right;
 }
-
-string ExpressionBinary::toString(int indent) {
-    switch (operation) {
-    case ExpressionBinaryOperation::EQUAL:
-        return "{= " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::NOT_EQUAL:
-        return "{!= " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::LESS:
-        return "{< " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::LESS_EQUAL:
-        return "{<= " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::GREATER:
-        return "{> " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::GREATER_EQUAL:
-        return "{<= " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::ADD:
-        return "{+ " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::SUB:
-        return "{- " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::MUL:
-        return "{* " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::DIV:
-        return "{/ " + left->toString(0) + " " + right->toString(0) + "}";
-    case ExpressionBinaryOperation::MOD:
-        return "{% " + left->toString(0) + " " + right->toString(0) + "}";
-    }
-}
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionBinary.h b/src/Parser/Expression/ExpressionBinary.h
index 5fbc44c..0c5bb4c 100644
--- a/src/Parser/Expression/ExpressionBinary.h
+++ b/src/Parser/Expression/ExpressionBinary.h
@@ -26,5 +26,4 @@ public:
     ExpressionBinaryOperation getOperation();
     shared_ptr<Expression> getLeft();
     shared_ptr<Expression> getRight();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionBlock.cpp b/src/Parser/Expression/ExpressionBlock.cpp
index 77f734c..c21d5ba 100644
--- a/src/Parser/Expression/ExpressionBlock.cpp
+++ b/src/Parser/Expression/ExpressionBlock.cpp
@@ -23,7 +23,3 @@ shared_ptr<StatementBlock> ExpressionBlock::getStatementBlock() {
 shared_ptr<StatementExpression> ExpressionBlock::getResultStatementExpression() {
     return resultStatementExpression;
 }
-
-string ExpressionBlock::toString(int indent) {
-    return "";
-}
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionBlock.h b/src/Parser/Expression/ExpressionBlock.h
index 05f5663..42850b8 100644
--- a/src/Parser/Expression/ExpressionBlock.h
+++ b/src/Parser/Expression/ExpressionBlock.h
@@ -13,5 +13,4 @@ public:
     ExpressionBlock(vector<shared_ptr<Statement>> statements);
     shared_ptr<StatementBlock> getStatementBlock();
     shared_ptr<StatementExpression> getResultStatementExpression();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionCall.cpp b/src/Parser/Expression/ExpressionCall.cpp
index 315590b..ea917e9 100644
--- a/src/Parser/Expression/ExpressionCall.cpp
+++ b/src/Parser/Expression/ExpressionCall.cpp
@@ -10,17 +10,3 @@ string ExpressionCall::getName() {
 vector<shared_ptr<Expression>> ExpressionCall::getArgumentExpressions() {
     return argumentExpressions;
 }
-
-string ExpressionCall::toString(int indent) {
-    string value;
-
-    value += "CALL(" + name + "):";
-    for (shared_ptr<Expression> &argumentExpression : argumentExpressions) {
-        value += "\n";
-        for (int ind=0; ind<indent+1; ind++)
-            value += "  ";
-        value += argumentExpression->toString(indent+1) + ",";
-    }
-
-    return value;
-}
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionCall.h b/src/Parser/Expression/ExpressionCall.h
index 5a06308..70df042 100644
--- a/src/Parser/Expression/ExpressionCall.h
+++ b/src/Parser/Expression/ExpressionCall.h
@@ -9,5 +9,4 @@ public:
     ExpressionCall(string name, vector<shared_ptr<Expression>> argumentExpressions);
     string getName();
     vector<shared_ptr<Expression>> getArgumentExpressions();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionGrouping.cpp b/src/Parser/Expression/ExpressionGrouping.cpp
index d5762fc..a9c783a 100644
--- a/src/Parser/Expression/ExpressionGrouping.cpp
+++ b/src/Parser/Expression/ExpressionGrouping.cpp
@@ -6,7 +6,3 @@ Expression(ExpressionKind::GROUPING, expression->getValueType()), expression(exp
 shared_ptr<Expression> ExpressionGrouping::getExpression() {
     return expression;
 }
-
-string ExpressionGrouping::toString(int indent) {
-    return "( " + expression->toString(0) + " )";
-}
diff --git a/src/Parser/Expression/ExpressionGrouping.h b/src/Parser/Expression/ExpressionGrouping.h
index e30a6ec..490f3fc 100644
--- a/src/Parser/Expression/ExpressionGrouping.h
+++ b/src/Parser/Expression/ExpressionGrouping.h
@@ -7,5 +7,4 @@ private:
 public:
     ExpressionGrouping(shared_ptr<Expression> expression);
     shared_ptr<Expression> getExpression();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionIfElse.cpp b/src/Parser/Expression/ExpressionIfElse.cpp
index 2d4d374..5c2d6d9 100644
--- a/src/Parser/Expression/ExpressionIfElse.cpp
+++ b/src/Parser/Expression/ExpressionIfElse.cpp
@@ -20,21 +20,3 @@ shared_ptr<ExpressionBlock> ExpressionIfElse::getThenBlock() {
 shared_ptr<ExpressionBlock> ExpressionIfElse::getElseBlock() {
     return elseBlock;
 }
-
-string ExpressionIfElse::toString(int indent) {
-    string value;
-    value += "IF(" + condition->toString(0) + "):\n";
-
-    value += thenBlock->toString(indent+1);
-    if (elseBlock != nullptr) {
-        for (int ind=0; ind<indent; ind++)
-            value += "  ";
-        value += "ELSE:\n";
-        value += elseBlock->toString(indent+1);
-    }
-    for (int ind=0; ind<indent; ind++)
-        value += "  ";
-    value += ";";
-
-    return  value;
-}
diff --git a/src/Parser/Expression/ExpressionIfElse.h b/src/Parser/Expression/ExpressionIfElse.h
index 337f688..0df4732 100644
--- a/src/Parser/Expression/ExpressionIfElse.h
+++ b/src/Parser/Expression/ExpressionIfElse.h
@@ -13,5 +13,4 @@ public:
     shared_ptr<Expression> getCondition();
     shared_ptr<ExpressionBlock> getThenBlock();
     shared_ptr<ExpressionBlock> getElseBlock();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionInvalid.cpp b/src/Parser/Expression/ExpressionInvalid.cpp
index 3f0ae4c..b4d4b5b 100644
--- a/src/Parser/Expression/ExpressionInvalid.cpp
+++ b/src/Parser/Expression/ExpressionInvalid.cpp
@@ -7,7 +7,3 @@ Expression(ExpressionKind::INVALID, ValueType::NONE), token(token) {
 shared_ptr<Token> ExpressionInvalid::getToken() {
     return token;
 }
-
-string ExpressionInvalid::toString(int indent) {
-    return "Invalid token " + token->toString() + " at " + to_string(token->getLine()) + ":" + to_string(token->getColumn()) + "\n";
-}
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionInvalid.h b/src/Parser/Expression/ExpressionInvalid.h
index 6e2f454..a64bb06 100644
--- a/src/Parser/Expression/ExpressionInvalid.h
+++ b/src/Parser/Expression/ExpressionInvalid.h
@@ -7,5 +7,4 @@ private:
 public:
     ExpressionInvalid(shared_ptr<Token> token);
     shared_ptr<Token> getToken();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionLiteral.cpp b/src/Parser/Expression/ExpressionLiteral.cpp
index c69688d..df85403 100644
--- a/src/Parser/Expression/ExpressionLiteral.cpp
+++ b/src/Parser/Expression/ExpressionLiteral.cpp
@@ -52,16 +52,3 @@ int32_t ExpressionLiteral::getSint32Value() {
 float ExpressionLiteral::getReal32Value() {
     return real32Value;
 }
-
-string ExpressionLiteral::toString(int indent) {
-    switch (valueType) {
-        case ValueType::NONE:
-            return "NONE";
-        case ValueType::BOOL:
-            return boolValue ? "true" : "false";
-        case ValueType::SINT32:
-            return to_string(sint32Value);
-        case ValueType::REAL32:
-            return to_string(real32Value);
-    }
-}
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionLiteral.h b/src/Parser/Expression/ExpressionLiteral.h
index 852f7e3..77972d2 100644
--- a/src/Parser/Expression/ExpressionLiteral.h
+++ b/src/Parser/Expression/ExpressionLiteral.h
@@ -13,5 +13,4 @@ public:
     bool getBoolValue();
     int32_t getSint32Value();
     float getReal32Value();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionVariable.cpp b/src/Parser/Expression/ExpressionVariable.cpp
index e6a1838..da9e78e 100644
--- a/src/Parser/Expression/ExpressionVariable.cpp
+++ b/src/Parser/Expression/ExpressionVariable.cpp
@@ -6,7 +6,3 @@ Expression(ExpressionKind::VAR, ValueType::NONE), name(name) { }
 string ExpressionVariable::getName() {
     return name;
 }
-
-string ExpressionVariable::toString(int indent) {
-    return "VAR(" + name + ")";
-}
\ No newline at end of file
diff --git a/src/Parser/Expression/ExpressionVariable.h b/src/Parser/Expression/ExpressionVariable.h
index 0b10e5d..bd0b99f 100644
--- a/src/Parser/Expression/ExpressionVariable.h
+++ b/src/Parser/Expression/ExpressionVariable.h
@@ -7,5 +7,4 @@ private:
 public:
     ExpressionVariable(string name);
     string getName();
-    string toString(int indent) override;
 };
\ No newline at end of file
diff --git a/src/Parser/Parser.cpp b/src/Parser/Parser.cpp
index aabdcee..f2a38f6 100644
--- a/src/Parser/Parser.cpp
+++ b/src/Parser/Parser.cpp
@@ -337,7 +337,7 @@ shared_ptr<Statement> Parser::matchStatementExpression() {
     if (expression == nullptr)
         return nullptr;
     else if (!expression->isValid())
-        return make_shared<StatementInvalid>(tokens.at(currentIndex), expression->toString(0));
+        return make_shared<StatementInvalid>(tokens.at(currentIndex), "");// expression->toString(0));
 
     return make_shared<StatementExpression>(expression);
 }
diff --git a/src/Parser/Statement/Statement.h b/src/Parser/Statement/Statement.h
index 8ec4fd5..ccdcfdd 100644
--- a/src/Parser/Statement/Statement.h
+++ b/src/Parser/Statement/Statement.h
@@ -25,7 +25,7 @@ private:
 
 public:
     Statement(StatementKind kind);
-    virtual ~Statement() {}
+    virtual ~Statement() { }
     StatementKind getKind();
     bool isValid();
 };