segfault at startup

[qtyra]

Describe the bug

mesonlsp segfaults at startup when a meson.build file lacks a project call at the top and there is some other statement.

Steps To Reproduce

1. Run mkdir /tmp/testlsp && cd /tmp/testlsp and copy this on minimal_init.lua:

vim.env.LAZY_STDPATH = ".repro"
load(vim.fn.system("curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua"))()

require("lazy.minit").repro({
    spec = {
        {
            "williamboman/mason-lspconfig.nvim",
            dependencies = { "williamboman/mason.nvim", opts = {} },
            opts = {
                ensure_installed = { "mesonlsp" },
                handlers = {
                    mesonlsp = function()
                        require("lspconfig")["mesonlsp"].setup({
                            capabilities = vim.lsp.protocol.make_client_capabilities(),
                        })
                    end,
                },
            },
        },
        {
            "neovim/nvim-lspconfig",
            config = function()
                vim.lsp.set_log_level("trace")
                require("vim.lsp.log").set_format_func(vim.inspect)
            end,
        },
    },
})

2. Copy this in meson.build:

gtkdep = dependency('gtk+-3.0')

3. Run nvim --clean -u minimal_init.lua meson.build, wait a few seconds until mesonlsp is installed (a message will appear at the bottom).
4. Load the file with :e and get the error: Client mesonlsp quit with exit code 0 and signal 11. Check log for errors: ...

Expected behavior

Get Missing project() call at the top of file as normal.

System info

• OS: Arch linux
• Editor: Neovim
• Version: NVIM v0.10.1

Additional context

last two messages of lsp log (github doesn't allow me to send the full message):

[ INFO ] analyze::mesontree - ../src/libanalyze/mesontree.cpp:121: Using custom parser for /tmp/testlsp/meson.build \n"
[INFO][2024-08-30 08:47:22] .../lua/vim/lsp.lua:799	"exit_handler"	{}

gdb stacktrace:

#0  0x00000000004f71cf in std::__shared_ptr<Node, (__gnu_cxx::_Lock_policy)2>::get (this=<optimized out>) at /usr/include/c++/13.2.1/bits/shared_ptr_base.h:1666
#1  FunctionExpression::functionName[abi:cxx11]() const (this=<optimized out>) at ../src/libast/node.hpp:445
#2  getSubprojectBaseDir (tree=<synthetic pointer>: <optimized out>) at ../src/libanalyze/subprojects/subprojectstate.cpp:40
#3  SubprojectState::findSubprojects (this=0x7d79962c4118, downloadSubprojects=0x1, tree=<optimized out>) at ../src/libanalyze/subprojects/subprojectstate.cpp:67
#4  0x00000000004e3692 in SubprojectState::fullSetup (tree=0x7d79962c4010, useCustomParser=0x1, downloadSubprojects=<optimized out>, ns=..., parentIdentifier=..., depth=0x1, options=..., this=0x7d79962c4118) at ../src/libanalyze/subprojects/subprojectstate.hpp:57
#5  MesonTree::fullParse (this=0x7d79962c4010, analysisOptions=..., downloadSubprojects=<optimized out>) at ../src/libanalyze/mesontree.hpp:50
#6  0x00000000006c6187 in Workspace::parse[abi:cxx11](TypeNamespace const&) (this=0x7d79962b8010, ns=...) at ../src/liblangserver/workspace.cpp:496
#7  0x00000000006ad3f7 in LanguageServer::initialize (this=0x7d7996a2a510, params=...) at ../src/liblangserver/langserver.cpp:236
#8  0x000000000071045d in AbstractLanguageServer::handleRequest (this=0x7d7996a2a510, method=..., callId=..., params=...) at ../src/libls/ls.cpp:83
#9  0x0000000000695ff9 in std::__invoke_impl<void, void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > (__f=<optimized out>, __t=...) at /usr/include/c++/13.2.1/bits/invoke.h:74
#10 std::__invoke<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > (__fn=<optimized out>) at /usr/include/c++/13.2.1/bits/invoke.h:96
#11 std::thread::_Invoker<std::tuple<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > >::_M_invoke<0ul, 1ul, 2ul, 3ul, 4ul> (this=<optimized out>) at /usr/include/c++/13.2.1/bits/std_thread.h:292
#12 std::thread::_Invoker<std::tuple<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > >::operator() (this=<optimized out>) at /usr/include/c++/13.2.1/bits/std_thread.h:299
#13 std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > >, void>::operator() (this=<optimized out>) at /usr/include/c++/13.2.1/future:1432
#14 std::__invoke_impl<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > >, void>&> (__f=...) at /usr/include/c++/13.2.1/bits/invoke.h:61
#15 std::__invoke_r<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>, std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > >, void>&> (__fn=...) at /usr/include/c++/13.2.1/bits/invoke.h:116
#16 std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>(), std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > >, void> >::_M_invoke (__functor=...) at /usr/include/c++/13.2.1/bits/std_function.h:291
#17 0x000000000068b325 in std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()>::operator() (this=<optimized out>) at /usr/include/c++/13.2.1/bits/std_function.h:591
#18 std::__future_base::_State_baseV2::_M_do_set (this=0x7d7996b57f90, __f=<optimized out>, __did_set=0x7d7996e3ef57) at /usr/include/c++/13.2.1/future:589
#19 0x0000000000d0391e in __pthread_once_full (init=0xc900a0 <__once_proxy>, control=0x7d7996b57fa8) at src/thread/pthread_once.c:22
#20 __pthread_once_full (control=0x7d7996b57fa8, init=0xc900a0 <__once_proxy>) at src/thread/pthread_once.c:11
#21 0x00000000006949a7 in __gthread_once (__func=<optimized out>, __once=<optimized out>) at /usr/include/c++/13.2.1/x86_64-alpine-linux-musl/bits/gthr-default.h:700
#22 std::call_once<void (std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()>*, bool*), std::__future_base::_State_baseV2*, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()>*, bool*> (__f=@0x7d7996e3ef70: (void (std::__future_base::_State_baseV2::*)(std::__future_base::_State_baseV2 * const, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()> *, bool *)) 0x68b2f0 <std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>*, bool*)>, __once=...) at /usr/include/c++/13.2.1/mutex:907
#23 std::__future_base::_State_baseV2::_M_set_result (__ignore_failure=0x0, __res=..., this=<optimized out>) at /usr/include/c++/13.2.1/future:428
#24 std::__future_base::_Async_state_impl<std::thread::_Invoker<std::tuple<void (jsonrpc::JsonRpcHandler::*)(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >), std::shared_ptr<jsonrpc::JsonRpcHandler>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > >, nlohmann::json_abi_v3_11_2::basic_json<std::map, std::vector, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, long, unsigned long, double, std::allocator, nlohmann::json_abi_v3_11_2::adl_serializer, std::vector<unsigned char, std::allocator<unsigned char> > > > >, void>::_M_run (this=0x7d7996b57f90) at /usr/include/c++/13.2.1/future:1774
#25 0x0000000000ca4f6f in execute_native_thread_routine ()
#26 0x0000000000d02838 in start (p=0x7d7996e3f048) at src/thread/pthread_create.c:207
#27 0x0000000000d03d53 in __clone () at src/thread/x86_64/clone.s:22
Backtrace stopped: frame did not save the PC
quit

[JCWasmx86]

Thanks, I'm currently away from my laptop, but I will fix it tomorrow

[JCWasmx86]

It will be fixed in the next release (BTW thanks for this great issue description with nice reproduceable example and a backtrace)