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orga-comp
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Cleaned up the parser a lil bit

This commit is contained in:
fsan 2021-10-07 23:25:40 -03:00
parent d7c3ab9b4b
commit 3991cb9895
1 changed files with 3 additions and 13 deletions
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16
parser.cpp
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@ -23,10 +23,6 @@ parser::parse_tokens() {
}
return parse_tokens();
}
/*std::cout << "ESTADO FINAL DEL STACK:\n";
for(int i = 0; i < _stack.size(); i++) {
std::cout << str_token(pop()) << " ";
}*/
return _stack.top();
//check if reduce is possible, if it is reduce.
@ -136,7 +132,6 @@ parser::reduce_exp(struct token *exp) {
stm->rvalue = exp;
stm->lvalue = pop();
push(stm);
//reduce_exp(pop());
break;
default: err();
}
@ -166,23 +161,21 @@ void
parser::expression() {
_stack.push(_tokens[pos]);
pos++;
// std::cout << "POS: " << pos << '\n';
switch (_stack.top()->tok_type) {
// case token::EXP_NUMBER:
// case token::EXP_ID:
case token::TOK_ID:
case token::TOK_NUM:
expression();
break;
case token::EXP_ID:
case token::EXP_NUMBER:
case token::EXP_OPERATION:
// std::cout << "Nested operations not supported\n";
std::cout << "This shouldn't be here...\n";
err();
break;
case token::TOK_OP:
expression();
break;
case token::TOK_SEMI:
// std::cout << "REDUCE\n";
reduce();
break;
default:
@ -202,7 +195,4 @@ parser::err() {
parser::~parser(){
free_tree(pop());
// while (_stack.size() > 0) {
// delete pop();
// }
}