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ExprEngine: Create symbolic expression for string arguments

This commit is contained in:
Daniel Marjamäki 2019-09-27 13:12:16 +02:00
parent 7f64faae99
commit 71aa9a531a
1 changed files with 12 additions and 0 deletions
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12
lib/exprengine.cpp
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@ -121,6 +121,13 @@ namespace {
void assignValue(const Token *tok, unsigned int varId, ExprEngine::ValuePtr value) {
mTrackExecution->symbolRange(tok, value);
if (value) {
if (auto arr = std::dynamic_pointer_cast<ExprEngine::ArrayValue>(value)) {
mTrackExecution->symbolRange(tok, arr->size);
for (const auto &indexAndValue: arr->data)
mTrackExecution->symbolRange(tok, indexAndValue.value);
}
}
memory[varId] = value;
}
@ -1041,6 +1048,11 @@ static ExprEngine::ValuePtr createVariableValue(const Variable &var, Data &data)
auto structValue = createStructVal(valueType->smartPointerType->classScope, var.isLocal() && !var.isStatic(), data);
return std::make_shared<ExprEngine::PointerValue>(data.getNewSymbolName(), structValue, true, false);
}
if (valueType->container && valueType->container->stdStringLike) {
auto size = std::make_shared<ExprEngine::IntRange>(data.getNewSymbolName(), 0, ~0ULL);
auto value = std::make_shared<ExprEngine::IntRange>(data.getNewSymbolName(), -128, 127);
return std::make_shared<ExprEngine::ArrayValue>(data.getNewSymbolName(), size, value);
}
return ExprEngine::ValuePtr();
}