2861324208
This implements a very elementary Lua script interpreter. It supports running a single command as well as running interactively. It uses editline if available. It's still missing a bunch of stuff though. Some things that I intentionally ingored for now are that I/O isn't properly hooked up (so every print goes to stdout) and the non-editline support which is not handling a bunch of corner cases. The latter is a matter of reusing existing code in the Python interpreter. Discussion on the mailing list: http://lists.llvm.org/pipermail/lldb-dev/2019-December/015812.html Differential revision: https://reviews.llvm.org/D71234
28 lines
923 B
C++
28 lines
923 B
C++
//===-- Lua.cpp -----------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Lua.h"
|
|
#include "llvm/Support/FormatVariadic.h"
|
|
|
|
using namespace lldb_private;
|
|
|
|
llvm::Error Lua::Run(llvm::StringRef buffer) {
|
|
int error =
|
|
luaL_loadbuffer(m_lua_state, buffer.data(), buffer.size(), "buffer") ||
|
|
lua_pcall(m_lua_state, 0, 0, 0);
|
|
if (!error)
|
|
return llvm::Error::success();
|
|
|
|
llvm::Error e = llvm::make_error<llvm::StringError>(
|
|
llvm::formatv("{0}\n", lua_tostring(m_lua_state, -1)),
|
|
llvm::inconvertibleErrorCode());
|
|
// Pop error message from the stack.
|
|
lua_pop(m_lua_state, 1);
|
|
return e;
|
|
}
|