bool Grammar::assignment(std::string idName)
{
	/**
	* Production:	<assignment> --> <id use> equal_sign <expression> semicolon
	*/
	/*std::cout << "assignment" << std::endl;*/
	//DONE: Add Code Here
	std::string idUseStmt;
	if(idUse(idName,idUseStmt)){
		if(parse->curToken()
		&& parse->curToken()->getSymType() == Token::SYMTYPE_EQUAL)
		{
			idUseStmt.append(" = ");
			if (parse->nextToken()){
				ASTNode *root=NULL;
				if (expression(&root) && parse->curToken() && parse->curToken()->getSymType()==Token::SYMTYPE_SEMICOLON){
					parse->evaluateASTTree(root,false,false);
					idUseStmt.append(root->value);
					idUseStmt.append(";");
					parse->getSymbolTable()->curFunction->funcStats.push(idUseStmt);
					delete root;
					parse->nextToken();
					return true;
				}
			}
		}
	}
	return false;
}


bool Grammar::ifStatement()
{
	/**
	* Production:	<if statement> --> if left_parenthesis <condition expression> right_parenthesis <block statements>
	*/
	/*std::cout << "ifStatement" << std::endl;*/
	//DONE: Add Code Here
	ASTNode *root = NULL;
	if (parse->curToken()
		&& parse->curToken()->getID() == Token::IDTYPE_RESERVEDWORD
		&& !strcmp(parse->curToken()->getTokenName().c_str(), "if")
		&& parse->nextToken()
		&& parse->curToken()->getSymType() == Token::SYMTYPE_LEFT_PARENTHESIS
		&& parse->nextToken()
		&& conditionExpression(&root)
		&& parse->curToken()
		&& parse->curToken()->getSymType() == Token::SYMTYPE_RIGHT_PARENTHESIS)
	{
		//evaluating AST for condition syntax
		parse->evaluateASTTree(root);
		int ifLable = parse->getSymbolTable()->lableCnt++;
		int elseLable = parse->getSymbolTable()->lableCnt++;
		Util::printIfStmt(parse->getSymbolTable(), root, ifLable, elseLable);

		//evaluating parse tree done. no more need for the tree.
		delete root;

		// add the string for if label
		// std::string ifGotoLabelStmt("c");
		// ifGotoLabelStmt.append(Util::to_string(ifLable));
		// ifGotoLabelStmt.append(":;");
		// parse->getSymbolTable()->curFunction->funcStats.push(ifGotoLabelStmt); //pushes string to the file

		// go to next token
		parse->nextToken();
		if (blockStatements()) //prints block statement
		{
			//else goto c1
			std::string elseGotoLabelStmt("c");
			elseGotoLabelStmt.append(Util::to_string(elseLable));
			elseGotoLabelStmt.append(":;");
			parse->getSymbolTable()->curFunction->funcStats.push(elseGotoLabelStmt);
			return true;
		}
	}
	return false;

}