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Improve tokenizer: don't confuse between a label and the case/default statements.

This commit is contained in:
Edoardo Prezioso 2011-10-19 18:49:02 +02:00
parent 882b0c15a0
commit 9257e82475
2 changed files with 5 additions and 3 deletions
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7
lib/tokenize.cpp
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@ -7409,7 +7409,7 @@ void Tokenizer::simplifyGoto()
else if (Token::Match(tok, "goto %var% ;"))
gotos.push_back(tok);
else if (indentlevel == 1 && Token::Match(tok->previous(), "[};] %var% : ;")) {
else if (indentlevel == 1 && Token::Match(tok->previous(), "[{};] %var% : ;") && tok->str() != "default") {
// Is this label at the end..
bool end = false;
unsigned int level = 0;
@ -7435,7 +7435,7 @@ void Tokenizer::simplifyGoto()
++level;
}
if (Token::Match(tok2, "%var% : ;") || tok2->str() == "goto") {
if ((Token::Match(tok2->previous(), "[{};] %var% : ;") && tok2->str() != "default") || tok2->str() == "goto") {
break;
}
}
@ -8688,7 +8688,8 @@ void Tokenizer::simplifyWhile0()
// remove "while (0) { .. }"
if (Token::simpleMatch(tok->next()->link(), ") {")) {
const Token *end = tok->next()->link()->next()->link();
if (!Token::findmatch(tok, "%var% : ;", end)) {
const Token *labelmatch = Token::findmatch(tok, "[{};] %var% : ;", end);
if (!labelmatch || labelmatch->next()->str() == "default") {
Token::eraseTokens(tok, end ? end->next() : 0);
tok->deleteThis(); // delete "while"
}

1
test/testsimplifytokens.cpp
View File

@ -6455,6 +6455,7 @@ private:
ASSERT_EQUALS("; { continue ; }", tok("; do { continue ; } while (0);"));
ASSERT_EQUALS("; { break ; }", tok("; do { break; } while (0);"));
ASSERT_EQUALS(";", tok("; while (false) { a; }"));
ASSERT_EQUALS(";", tok("; while (false) { switch (n) { case 0: return; default: break; } n*=1; }"));
}
void while0for() {