Hi,
A simplified Vim9 script that reproduces this crash is below:
===============================================
vim9script
def F()
{
var m = 10
}
echo m
enddef
def Test()
var d: dict<any> = {}
d->extend({A: 10, Func: function('F', [])})
enddef
Test()
===============================================
If you source the above script, then the latest Vim crashes.
- Yegappan
On Sat, Mar 13, 2021 at 8:21 AM Yegappan Lakshmanan <[email protected]> wrote:
>
> Hi,
>
> I am seeing a Vim (8.2.2590) crash with my vim9 LSP plugin
> when a variable declaration is moved inside a try statement.
>
> A fragment of a function that causes the crash is below:
>
> def ProcessMessages(lspserver: dict<any>): void
> try
> var msg = content->json_decode()
> catch
> continue
> endtry
> if msg->has_key('result') || msg->has_key('error')
> endif
> enddef
>
> In the above fragment of code the variable 'msg' is declared
> inside the try block but is accessed outside of the block.
> If the variable declaration is moved outside the try block, then
> Vim doesn't crash.
>
> I am not able to reproduce this using a simplified function.
>
> The crash traceback is below.
>
> Regards,
> Yegappan
>
> Program received signal SIGSEGV, Segmentation fault.
> equal_type (type1=type1@entry=0x0, type2=type2@entry=0x5555558a3930 <t_any>)
> at vim9type.c:922
> 922 if (type1->tt_type != type2->tt_type)
> (gdb) bt
> #0 equal_type
> (type1=type1@entry=0x0, type2=type2@entry=0x5555558a3930 <t_any>)
> at vim9type.c:922
> #1 0x00005555557914db in common_type
> (type_gap=0x7fffffffbd20, dest=0x7fffffffbcb0,
> type2=0x5555558a3930 <t_any>, type1=0x0) at vim9type.c:964
> #2 typval2type_int
> (tv=tv@entry=0x7fffffffbe00, type_gap=type_gap@entry=0x7fffffffbd20)
> at vim9type.c:302
> #3 0x0000555555791e6c in typval2type
> (type_gap=0x7fffffffbd20, tv=0x7fffffffbe00) at vim9type.c:424
> #4 check_typval_type
> (expected=expected@entry=0x5555558a3d60 <t_dict_any>,
> actual_tv=actual_tv@entry=0x7fffffffbe00, where=...) at vim9type.c:424
> #5 0x0000555555791f13 in check_typval_arg_type
> (expected=expected@entry=0x5555558a3d60 <t_dict_any>,
> actual_tv=actual_tv@entry=0x7fffffffbe00, arg_idx=arg_idx@entry=2) at
> vim9type.c:409
> #6 0x000055555565dfa1 in extend
> (argvars=0x7fffffffbdf0, rettv=0x555555b3cbc0,
> arg_errmsg=<optimized out>, is_new=0) at list.c:2666
> #7 0x0000555555786c39 in call_bfunc
> (func_idx=105, argcount=2, ectx=ectx@entry=0x7fffffffc040)
> at vim9execute.c:663
> #8 0x000055555578cbb8 in call_def_function
> (ufunc=ufunc@entry=0x555555b23040, argc_arg=argc_arg@entry=1,
> argv=argv@entry=0x7fffffffd1f0, partial=<optimized out>,
> rettv=rettv@entry=0x7fffffffd3c0)
> at vim9execute.c:2469
> #9 0x0000555555774027 in call_user_func
> (fp=fp@entry=0x555555b23040, argcount=argcount@entry=1,
> argvars=argvars@entry=0x7fffffffd1f0,
> rettv=rettv@entry=0x7fffffffd3c0, funcexe=funcexe@entry=
> 0x7fffffffd440, selfdict=selfdict@entry=0x0) at userfunc.c:1673
> #10 0x00005555557746cb in call_user_func_check
> (selfdict=<optimized out>, funcexe=
> 0x7fffffffd440, rettv=0x7fffffffd3c0, argvars=0x7fffffffd1f0,
> argcount=1, fp=0x555555b23040) at userfunc.c:2061
> #11 call_user_func_check
> (fp=0x555555b23040, argcount=1, argvars=0x7fffffffd1f0,
> rettv=0x7fffffffd3c0, funcexe=0x7fffffffd440, selfdict=<optimized
> out>) at userfunc.c:2027
> #12 0x0000555555774bbd in call_func
> (funcname=funcname@entry=0x555555b32770 "lsp#addServer",
> len=len@entry=-1, rettv=rettv@entry=0x7fffffffd3c0,
> argcount_in=argcount_in@entry=1,
> argvars_in=argvars_in@entry=0x7fffffffd1f0,
> funcexe=funcexe@entry=0x7fffffffd440)
> at userfunc.c:2527
> #13 0x00005555557751df in get_func_tv
> (name=name@entry=0x555555b32770 "lsp#addServer", len=len@entry=-1,
> rettv=rettv@entry=0x7fffffffd3c0, arg=arg@entry=0x7fffffffd3a8,
> evalarg=evalarg@entry=0x7fffffffd3f0,
> funcexe=funcexe@entry=0x7fffffffd440) at userfunc.c:932
> #14 0x000055555577589c in ex_call (eap=0x7fffffffd650) at userfunc.c:4513
> #15 0x000055555561297b in do_one_cmd (cookie=0x7fffffffdf00, fgetline=
> 0x555555700c60 <getsourceline>, cstack=0x7fffffffd800, flags=7,
> cmdlinep=0x7fffffffd5b0) at ex_docmd.c:2591
> #16 do_cmdline
> (cmdline=cmdline@entry=0x5555558b8060 "set nocp", fgetline=fgetline@entry=
> 0x555555700c60 <getsourceline>,
> cookie=cookie@entry=0x7fffffffdf00, flags=flags@entry=7) at
> ex_docmd.c:1000
> #17 0x0000555555702840 in do_source
> (fname=0x5555558101b1 "$HOME/.vimrc", check_other=<optimized out>,
> is_vimrc=<optimized out>, ret_sid=0x0) at scriptfile.c:1404
> #18 0x0000555555594f33 in source_startup_scripts
> (parmp=0x5555558b0580 <params>) at main.c:3155
> #19 main (argc=<optimized out>, argv=<optimized out>) at main.c:400
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