Function CompileAndLoadModule

source/cpu.cpp:511–563

// ***********************************************************************

bool CompileAndLoadModule(String modulePath, i32 nReturns) {
	bool wasError = false;

	// run typechecking
	Luau::CheckResult result = pState->frontend.check(modulePath.pData);

	if (!result.errors.empty())
		wasError = true;

	// print errors and lint warnings
	for (Luau::TypeError& error : result.errors) {
		std::string humanReadableName = pState->frontend.fileResolver->getHumanReadableModuleName(error.moduleName);
		if (const Luau::SyntaxError* syntaxError = Luau::get_if<Luau::SyntaxError>(&error.data))
			Log::Warn("SyntaxError in [%s:%d] - %s", humanReadableName.c_str(), error.location.begin.line + 1, syntaxError->message.c_str());
			else
			Log::Warn("TypeError in [%s:%d] - %s", humanReadableName.c_str(), error.location.begin.line + 1, Luau::toString(error, Luau::TypeErrorToStringOptions{pState->frontend.fileResolver}).c_str());
	}

	for (Luau::LintWarning& error : result.lintResult.errors) {
		std::string humanReadableName = pState->frontend.fileResolver->getHumanReadableModuleName(error.moduleName);
		Log::Warn("LintError in [%s:%d] (%s) - %s",humanReadableName.c_str(), error.location.begin.line + 1,
			Luau::LintWarning::getName(error.code), error.text.c_str());
	}

	for (Luau::LintWarning& error : result.lintResult.warnings) {
		std::string humanReadableName = pState->frontend.fileResolver->getHumanReadableModuleName(error.moduleName);
		Log::Warn("LintWarning in [%s:%d] (%s) - %s", humanReadableName.c_str(), error.location.begin.line + 1,
			Luau::LintWarning::getName(error.code), error.text.c_str());
	}

	// Compile and load
	if (wasError == false) {
		i64 sourceSize;
		char* pSource = ReadWholeFile(modulePath, &sourceSize, g_pArenaFrame);

		u64 bytecodeSize = 0;
		char* pBytecode = luau_compile(pSource, sourceSize, nullptr, &bytecodeSize);
		int result = luau_load(pState->pProgramState, modulePath.pData, pBytecode, bytecodeSize, 0);

		if (result != 0) {
			Log::Warn("Lua Load Error: %s", lua_tostring(pState->pProgramState, lua_gettop(pState->pProgramState)));
			lua_pop(pState->pProgramState, 1);
			return false;
		}

		if (lua_pcall(pState->pProgramState, 0, nReturns, 0) != LUA_OK) {
			Log::Warn("Lua Runtime Error: %s", lua_tostring(pState->pProgramState, lua_gettop(pState->pProgramState)));
			lua_pop(pState->pProgramState, 1);
			return false;
		}
	}
	return !wasError;
}

// ***********************************************************************