xref: /llvm-project/lldb/source/Plugins/ScriptInterpreter/Lua/Lua.cpp (revision 2861324208e13846eb306f01b32448f94177cc3b)
1 //===-- Lua.cpp -----------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "Lua.h"
10 #include "llvm/Support/FormatVariadic.h"
11 
12 using namespace lldb_private;
13 
14 llvm::Error Lua::Run(llvm::StringRef buffer) {
15   int error =
16       luaL_loadbuffer(m_lua_state, buffer.data(), buffer.size(), "buffer") ||
17       lua_pcall(m_lua_state, 0, 0, 0);
18   if (!error)
19     return llvm::Error::success();
20 
21   llvm::Error e = llvm::make_error<llvm::StringError>(
22       llvm::formatv("{0}\n", lua_tostring(m_lua_state, -1)),
23       llvm::inconvertibleErrorCode());
24   // Pop error message from the stack.
25   lua_pop(m_lua_state, 1);
26   return e;
27 }
28