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Optimization: Save 2 of 3 token list iterations in Tokenizer::simplifyStaticConst()

This commit is contained in:
PKEuS 2018-05-12 18:58:15 +02:00
parent 16e1e1d8f9
commit a16e99c710
1 changed files with 16 additions and 6 deletions
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20
lib/tokenize.cpp
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@ -5989,8 +5989,9 @@ void Tokenizer::simplifyStaticConst()
// Move 'const' before all other qualifiers and types and then
// move 'static' before all other qualifiers and types, ...
for (size_t i = 0; i < sizeof(qualifiers)/sizeof(qualifiers[0]); i++) {
for (Token *tok = list.front(); tok; tok = tok->next()) {
bool continue2 = false;
for (size_t i = 0; i < sizeof(qualifiers)/sizeof(qualifiers[0]); i++) {
// Keep searching for a qualifier
if (!tok->next() || tok->next()->str() != qualifiers[i])
@ -6000,14 +6001,17 @@ void Tokenizer::simplifyStaticConst()
Token* leftTok = tok;
for (; leftTok; leftTok = leftTok->previous()) {
if (!Token::Match(leftTok, "%type%|static|const|extern|struct|::") ||
(isCPP() && Token::Match(leftTok, "private:|protected:|public:|operator")))
(isCPP() && Token::Match(leftTok, "private:|protected:|public:|operator"))) {
continue2 = true;
break;
}
}
// The token preceding the declaration should indicate the start of a declaration
if (leftTok == tok ||
(leftTok && !Token::Match(leftTok, ";|{|}|(|,|private:|protected:|public:"))) {
continue;
continue2 = true;
break;
}
// Move the qualifier to the left-most position in the declaration
@ -6015,12 +6019,18 @@ void Tokenizer::simplifyStaticConst()
if (!leftTok) {
list.front()->insertToken(qualifiers[i], emptyString, false);
list.front()->swapWithNext();
} else if (leftTok->next())
tok = list.front();
} else if (leftTok->next()) {
leftTok->next()->insertToken(qualifiers[i], emptyString, true);
else
tok = leftTok->next();
} else {
leftTok->insertToken(qualifiers[i]);
tok = leftTok;
}
}
if (continue2)
continue;
}
}
void Tokenizer::simplifyIfAndWhileAssign()