Method nodeFromFrame

libchigraphdebugger/src/Debugger.cpp:241–277

}

NodeInstance* Debugger::nodeFromFrame(lldb::SBFrame frame) {
	using namespace std::string_literals;

	// if frame isn't valid, use the default
	if (!frame.IsValid()) {
		auto thread = lldbProcess().GetSelectedThread();
		if (!thread.IsValid()) { return {}; }
		frame = thread.GetSelectedFrame();
	}

	if (!frame.IsValid()) { return {}; }

	auto mangledFunctionName = frame.GetFunctionName();
	// demangle that
	std::string moduleName, functionName;
	std::tie(moduleName, functionName) = unmangleFunctionName(mangledFunctionName);

	GraphFunction* func = nullptr;

	if (mangledFunctionName == "main"s) { func = module().functionFromName("main"); }

	if (func == nullptr) {
		auto mod = static_cast<GraphModule*>(module().context().moduleByFullName(moduleName));
		if (!mod) { return nullptr; }
		func = mod->functionFromName(functionName);
	}

	unsigned lineNo = frame.GetLineEntry().GetLine();

	// create assoc TODO: cache these
	auto assoc = func->module().createLineNumberAssoc();

	auto nodeIter = assoc.left.find(lineNo);
	if (nodeIter == assoc.left.end()) { return nullptr; }

	return nodeIter->second;
}

unsigned lineNumberFromNode(NodeInstance& inst) {
	// TODO: cache these, they're kinda expensive to make