Method createNodeTypeFromCCode

libchigraph/src/GraphModule.cpp:1029–1070

}

Result GraphModule::createNodeTypeFromCCode(boost::string_view         code,
                                            boost::string_view         functionName,
                                            std::vector<std::string>   clangArgs,
                                            std::unique_ptr<NodeType>* toFill) {
	assert(toFill != nullptr);

	Result res;

	// add -I for the .c dir
	clangArgs.push_back("-I");
	clangArgs.push_back(pathToCSources().string());

	auto mod = compileCCode(llvm::sys::fs::getMainExecutable(nullptr, nullptr).c_str(), code,
	                        clangArgs, context().llvmContext(), res);

	if (!res) { return res; }

	auto llFunc = mod->getFunction(functionName.to_string());

	if (llFunc == nullptr) {
		res.addEntry("EUKN", "Failed to find function in C code",
		             {{"Function Name", functionName.to_string()}, {"C Code", code.to_string()}});
		return res;
	}

	std::vector<NamedDataType> dInputs;
	for (const auto& argument : llFunc->args()) {
		DataType ty;
		context().typeFromModule("lang", stringifyLLVMType(argument.getType()), &ty);
		dInputs.emplace_back(argument.getName(), ty);
	}

	DataType output;
	auto     ret = llFunc->getReturnType();

	if (!ret->isVoidTy()) { context().typeFromModule("lang", stringifyLLVMType(ret), &output); }

	*toFill = std::make_unique<CFuncNode>(*this, code.to_string(), functionName.to_string(),
	                                      clangArgs, dInputs, output);

	return res;
}

}  // namespace chi