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Remove old container forward

This commit is contained in:
Paul 2020-08-10 22:09:33 -05:00
parent 71c228a01a
commit 8c7e91c985
1 changed files with 0 additions and 60 deletions
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60
lib/valueflow.cpp
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@ -5705,66 +5705,6 @@ static void valueFlowContainerForward(Token *tok, const Variable* var, ValueFlow
valueFlowContainerForward(tok, endOfVarScope, var, value, tokenlist);
}
static void valueFlowContainerForward(Token *tok, nonneg int containerId, ValueFlow::Value value, const Settings *settings, bool cpp)
{
while (nullptr != (tok = tok->next())) {
if (Token::Match(tok, "[{}]"))
break;
if (Token::Match(tok, "while|for (")) {
const Token *start = tok->linkAt(1)->next();
if (!Token::simpleMatch(start->link(), "{"))
break;
if (isContainerSizeChanged(containerId, start, start->link()))
break;
}
if (Token::simpleMatch(tok, ") {") && Token::Match(tok->link()->previous(), "while|for|if (")) {
const Token *start = tok->next();
if (isContainerSizeChanged(containerId, start, start->link()) || isEscapeScope(start, nullptr))
break;
tok = start->link();
if (Token::simpleMatch(tok, "} else {")) {
start = tok->tokAt(2);
if (isContainerSizeChanged(containerId, start, start->link()))
break;
tok = start->link();
}
}
if (tok->varId() != containerId)
continue;
if (Token::Match(tok, "%name% ="))
break;
if (Token::Match(tok, "%name% +=")) {
if (!tok->valueType() || !tok->valueType()->container || !tok->valueType()->container->stdStringLike)
break;
const Token *rhs = tok->next()->astOperand2();
if (rhs->tokType() == Token::eString)
value.intvalue += Token::getStrLength(rhs);
else if (rhs->valueType() && rhs->valueType()->container && rhs->valueType()->container->stdStringLike) {
bool found = false;
for (const ValueFlow::Value &rhsval : rhs->values()) {
if (rhsval.isKnown() && rhsval.isContainerSizeValue()) {
value.intvalue += rhsval.intvalue;
found = true;
}
}
if (!found)
break;
} else
break;
}
if (isLikelyStreamRead(cpp, tok->astParent()))
break;
if (isContainerSizeChangedByFunction(tok))
break;
if (!tok->valueType() || !tok->valueType()->container)
break;
if (Token::Match(tok, "%name% . %name% (") && tok->valueType()->container->getAction(tok->strAt(2)) != Library::Container::Action::NO_ACTION)
break;
if (!hasContainerSizeGuard(tok, containerId))
setTokenValue(tok, value, settings);
}
}
static bool isContainerSizeChanged(const Token *tok, int depth)
{
if (!tok)