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Fix false positive with non-const function calls

This commit is contained in:
Richard Quirk 2011-12-01 19:49:04 +01:00
parent a880469c5a
commit b2ea78543b
2 changed files with 14 additions and 2 deletions
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11
lib/checkother.cpp
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@ -2444,6 +2444,7 @@ namespace {
Expressions(const SymbolDatabase *symbolDatabase, const
std::list<Function> &constFunctions)
: _start(0),
_lastTokens(0),
_symbolDatabase(symbolDatabase),
_constFunctions(constFunctions) { }
@ -2451,13 +2452,18 @@ namespace {
const std::string &e = _expression.str();
if (!e.empty()) {
std::map<std::string, ExpressionTokens>::iterator it = _expressions.find(e);
bool lastInconclusive = _lastTokens && _lastTokens->inconclusiveFunction;
if (it == _expressions.end()) {
ExpressionTokens exprTokens(_start, end);
exprTokens.inconclusiveFunction = inconclusiveFunctionCall(
exprTokens.inconclusiveFunction = lastInconclusive || inconclusiveFunctionCall(
_symbolDatabase, _constFunctions, exprTokens);
_expressions.insert(std::make_pair(e, exprTokens));
_lastTokens = &_expressions.find(e)->second;
} else {
it->second.count += 1;
ExpressionTokens &expr = it->second;
expr.count += 1;
expr.inconclusiveFunction = expr.inconclusiveFunction || lastInconclusive;
_lastTokens = &expr;
}
}
_expression.str("");
@ -2478,6 +2484,7 @@ namespace {
std::map<std::string, ExpressionTokens> _expressions;
std::ostringstream _expression;
const Token *_start;
ExpressionTokens *_lastTokens;
const SymbolDatabase *_symbolDatabase;
const std::list<Function> &_constFunctions;
};

5
test/testother.cpp
View File

@ -3762,6 +3762,11 @@ private:
" if (str == \"(\" || str == \"(\") {}\n"
"}");
ASSERT_EQUALS("[test.cpp:2] -> [test.cpp:2]: (style) Same expression on both sides of '||'.\n", errout.str());
check("void foo() {\n"
" if (bar(a) && !strcmp(a, b) && bar(a) && !strcmp(a, b)) {}\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void duplicateExpression4() {