please kill me

src/lexer.l

@@ -47,6 +47,8 @@ and                     { return yy::parser::token::TOK_KW_AND; }
 or                      { return yy::parser::token::TOK_KW_OR; }
 pass                    { return yy::parser::token::TOK_KW_PASS; }
 else                    { return yy::parser::token::TOK_KW_ELSE; }
+elif                    { return yy::parser::token::TOK_KW_ELIF; }
+class                   { return yy::parser::token::TOK_KW_CLASS; }
 
 \=\=                    { return yy::parser::token::TOK_EQ; }
 \!\=                    { return yy::parser::token::TOK_NE; }

src/parser.y

@@ -28,7 +28,7 @@
 %token <std::string> STRING
 %token <int> NUMBER
 %token ASSIGN PLUS MINUS L_PAREN R_PAREN COLON EQ NE LT GT LTE GTE MULTIPLY DIVIDE MODULO L_BRACKET L_BRACE R_BRACKET R_BRACE DOT SEMICOLON COMMA BIT_NOT BIT_AND BIT_OR BIT_XOR LSHIFT RSHIFT PLUS_ASSIGN MINUS_ASSIGN MULTIPLY_ASSIGN DIVIDE_ASSIGN MODULO_ASSIGN BIT_AND_ASSIGN BIT_OR_ASSIGN BIT_XOR_ASSIGN LSHIFT_ASSIGN RSHIFT_ASSIGN
-%token KW_DEF KW_IF KW_RETURN KW_FOR KW_IN KW_NOT KW_AND KW_OR KW_PASS KW_ELSE 
+%token KW_DEF KW_IF KW_RETURN KW_FOR KW_IN KW_NOT KW_AND KW_OR KW_PASS KW_ELSE KW_ELIF KW_CLASS
 %token EOF NEWLINE INDENT DEDENT