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Tokenizer: Removed commented-out simplification

This commit is contained in:
Daniel Marjamäki 2014-01-17 17:44:33 +01:00
parent 3facc06cb7
commit 311059f603
1 changed files with 0 additions and 81 deletions
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81
lib/tokenize.cpp
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@ -3306,87 +3306,6 @@ bool Tokenizer::simplifyTokenList1()
simplifyIfNot();
simplifyIfNotNull();
//simplify for: move out start-statement "for (a;b;c);" => "{ a; for(;b;c); }"
//not enabled because it fails many tests with testrunner.
//@todo fix these fails before enabling this simplification
/*for (Token* tok = list.front(); tok; tok = tok->next()) {
if (tok->str() == "(" && ( !tok->previous() || tok->previous()->str() != "for")) {
tok = tok->link();
continue;
}
if (!Token::Match(tok->previous(),"[{};] for ("))
continue;
//find the two needed semicolons inside the 'for'
const Token *firstsemicolon = Token::findsimplematch(tok->next(), ";", tok->next()->link());
if (!firstsemicolon)
continue;
const Token *secondsemicolon = Token::findsimplematch(firstsemicolon->next(), ";", tok->next()->link());
if (!secondsemicolon)
continue;
if (Token::findsimplematch(secondsemicolon->next(), ";", tok->next()->link()))
continue; //no more than two semicolons!
if (!tok->next()->link()->next())
continue; //there should be always something after 'for (...)'
Token *fortok = tok;
Token *begin = tok->tokAt(2);
Token *end = tok->next()->link();
if ( begin->str() != ";" ) {
tok = tok->previous();
tok->insertToken(";");
tok->insertToken("{");
tok = tok->next();
if (end->next()->str() =="{") {
end = end->next()->link();
end->insertToken("}");
Token::createMutualLinks(tok, end->next());
end = end->link()->previous();
} else {
if (end->next()->str() != ";")
end->insertToken(";");
end = end->next();
end->insertToken("}");
Token::createMutualLinks(tok, end->next());
}
end = firstsemicolon->previous();
Token::move(begin, end, tok);
tok = fortok;
end = fortok->next()->link();
}
//every 'for' is changed to 'for(;b;c), now it's possible to convert the 'for' to a 'while'.
//precisely, 'for(;b;c){code}'-> 'while(b){code + c;}'
fortok->str("while");
begin = firstsemicolon->previous();
begin->deleteNext();
begin = secondsemicolon->previous();
begin->deleteNext();
begin = begin->next();
if (begin->str() == ")") { //'for(;b;)' -> 'while(b)'
if (begin->previous()->str() == "(") //'for(;;)' -> 'while(true)'
begin->previous()->insertToken("true");
tok = fortok;
continue;
}
if (end->next()->str() =="{") {
tok = end->next()->link()->previous();
tok->insertToken(";");
} else {
tok = end;
if (end->next()->str() != ";")
tok->insertToken(";");
tok->insertToken("{");
tok = tok->tokAt(2);
tok->insertToken("}");
Token::createMutualLinks(tok->previous(), tok->next());
tok = tok->previous();
}
end = end->previous();
Token::move(begin, end, tok);
tok = fortok;
}*/
// The simplifyTemplates have inner loops
if (_settings->terminated())
return false;