Crash with invalid struct definition

[christopheredsall]

As a beginner Julia user I attended an intro session given by @vchuravy at RSE2018 conference. Running on staging.juliabox.com

julia> versioninfo()
Julia Version 1.0.0
Commit 5d4eaca0c9 (2018-08-08 20:58 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Xeon(R) CPU E5-2673 v3 @ 2.40GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-6.0.0 (ORCJIT, haswell)
Environment:
  JULIA = /opt/julia-0.6/bin/julia
  JULIA_PKG_SERVER = https://pkg.juliacomputing.com
  JULIA_KERNELS = ['julia-0.6', 'julia-1.0']
  JULIABOX_ROLE =

I put in the following invalid syntax. Instead of getting an error the REPL crashes.

julia> struct X
           X::Int64
       end

julia> X(1)

signal (11): Segmentation fault
in expression starting at no file:0
unknown function (ip: 0x7f6f340d9c47)
unknown function (ip: 0x232e91f)
unknown function (ip: 0x7f6f340d9c56)
unknown function (ip: 0x3)
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2182
do_call at /buildworker/worker/package_linux64/build/src/interpreter.c:324
eval_value at /buildworker/worker/package_linux64/build/src/interpreter.c:428
eval_stmt_value at /buildworker/worker/package_linux64/build/src/interpreter.c:363 [inlined]
eval_body at /buildworker/worker/package_linux64/build/src/interpreter.c:686
jl_interpret_toplevel_thunk_callback at /buildworker/worker/package_linux64/build/src/interpreter.c:799
unknown function (ip: 0xfffffffffffffffe)
unknown function (ip: 0x7f6f3d3aad0f)
unknown function (ip: 0xffffffffffffffff)
jl_interpret_toplevel_thunk at /buildworker/worker/package_linux64/build/src/interpreter.c:808
jl_toplevel_eval_flex at /buildworker/worker/package_linux64/build/src/toplevel.c:787
jl_toplevel_eval_in at /buildworker/worker/package_linux64/build/src/builtins.c:622
eval at ./boot.jl:319
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2182
eval_user_input at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/REPL/src/REPL.jl:85
macro expansion at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.0/REPL/src/REPL.jl:117 [inlined]
#28 at ./task.jl:259
jl_fptr_trampoline at /buildworker/worker/package_linux64/build/src/gf.c:1829
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2182
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1536 [inlined]
start_task at /buildworker/worker/package_linux64/build/src/task.c:268
unknown function (ip: 0xffffffffffffffff)
Allocations: 14347939 (Pool: 14344366; Big: 3573); GC: 31
Segmentation fault (core dumped)
jrun@notebook-dl8j4:/home/jrun$

[yuyichao]

I don't think the code is invalid and this seems to be an regression from 0.6.

julia> @code_lowered X(1)
CodeInfo(:(begin
        nothing
        return $(Expr(:new, :(Main.X), :((Base.convert)(Main.Int, X))))
    end))

julia> @code_lowered X(1)
CodeInfo(
2 1 ─ %1 = %new(X, X)                                                                           │
  └──      return %1                                                                            │
)

It's passing in the wrong name for the type.