Method GetStackFrames

Source/Engine/Platform/Web/WebPlatform.cpp:429–473

}

Array<PlatformBase::StackFrame> WebPlatform::GetStackFrames(int32 skipCount, int32 maxDepth, void* context)
{
    Array<StackFrame> result;
#if CRASH_LOG_ENABLE
    // Get callstack
    char callstack[2000];
    emscripten_get_callstack(EM_LOG_JS_STACK, callstack, sizeof(callstack));

    // Parse callstack
    int32 pos = 0;
    while (callstack[pos])
    {
        StackFrame& frame = result.AddOne();
        frame.ProgramCounter = 0;
        frame.ModuleName[0] = 0;
        frame.FileName[0] = 0;
        frame.LineNumber = 0;

        // Skip leading spaces
        while (callstack[pos] == ' ')
            pos++;

        // Skip 'at '
        pos += 3;

        // Read function name
        int32 dst = 0;
        while (callstack[pos] && callstack[pos] != '\n' && dst < ARRAY_COUNT(frame.FileName) - 1)
            frame.FunctionName[dst++] = callstack[pos++];
        frame.FunctionName[dst] = 0;

        // Skip '\n'
        if (callstack[pos])
            pos++;
    }

    // Adjust frames range
    skipCount += 2; // Skip this function and utility JS frames
    while (skipCount-- && result.HasItems())
        result.RemoveAtKeepOrder(0);
    if (result.Count() > maxDepth)
        result.Resize(maxDepth);
#endif
    return result;
}

#if 1
// Fix linker errors when using '-sAUTO_JS_LIBRARIES=0' due to unused WebGL functions (referenced by SDL3 port itself from emscripten: SDL_emscriptenopengles.c)