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Tuple Covariance Crashes Intellisense Process #2505
Description
Describe the bug
- OS and Version: macOS 10.13.6
- VS Code Version: 1.27.1
- C/C++ Extension Version: 0.18.1
Exercising tuple covariance will crash the intellisense process. This snippet will cause a crash:
#include <tuple>
void Foo(std::tuple<int>)
{}
int main(int argc, char* argv[])
{
short val = 0;
Foo(std::make_tuple(val));
}
The snippet compiles and runs without warnings:
clang -std=c++11 tst.cpp
The C/C++ output will show entries like this:
Checking for syntax errors: file:///Users/ray/src/gm/vscpp/tst.cpp
Failed to read response from server: 18
Checking for syntax errors: file:///Users/ray/src/gm/vscpp/tst.cpp
IntelliSense engine is not responding. Using the Tag Parser instead.
IntelliSense engine is not responding. Using the Tag Parser instead.
IntelliSense engine is not responding. Using the Tag Parser instead.
Resetting IntelliSense server: /Users/ray/src/gm/vscpp/tst.cpp
Failed to read response from server: 16
Activity
sean-mcmanus commentedon Sep 11, 2018
It's not reproducing for me. What is your compilerPath and intelliSenseMode? Assuming clang, do you know what version you're using (i.e. for tuple).
rbit commentedon Sep 11, 2018
compilerPath and intelliSenseMode are not explicitly set. For this repro, I created a new folder, and added the file tst.cpp.
System clang:
sean-mcmanus commentedon Sep 11, 2018
Okay, thanks. I've reproed the bug. Something with the Mac C++ headers is crashing our parser (at "copy_type_with_substitution"). Looks like about 10% of Mac crashes.
UPDATE: This has been fixed with our pending 0.21.0-insiders we plan to release some time next week.
sean-mcmanus commentedon Nov 9, 2018
Should be fixed with 0.21.0-insiders (auto installed if
"C_Cpp.updateChannel": "Insiders"is set, or the offline vsix). Let us know if you find any problems with it.