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mapping a NamedTuple prints Internal error: encountered unexpected error in runtime #49785

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jkrumbiegel opened this issue May 12, 2023 · 3 comments · Fixed by #49863
Closed

mapping a NamedTuple prints Internal error: encountered unexpected error in runtime #49785

jkrumbiegel opened this issue May 12, 2023 · 3 comments · Fixed by #49863
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@aviatesk
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bug Indicates an unexpected problem or unintended behavior compiler:inference Type inference

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@jkrumbiegel
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jkrumbiegel commented May 12, 2023 •
edited
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I tested this on Julia 1.8.5 and 1.9beta3 (on an M1 mac but we've seen this on other architectures as well)

struct DiscriminatedUnion{S, T<:S}
    type::String
    value::T
end

abstract type Car end

struct Audi <: Car end
struct Mercedes <: Car end

function concrete_type_mapping(::Type{Car})
    (
      audi = Audi,
      mercedes = Mercedes,
    )
end

function subtypes(t::Type{<:DiscriminatedUnion{S}}) where {S}
    SUP = fieldtypes(t)[2]
    map(T -> DiscriminatedUnion{SUP,T}, concrete_type_mapping(SUP))
end

subtypes(DiscriminatedUnion{Car})

Calling subtypes prints out this super long trace, at the end of which you can see the correct output (audi = DiscriminatedUnion{Car, Audi}, mercedes = DiscriminatedUnion{Car, Mercedes}).

I can avoid the error by replacing map(T -> DiscriminatedUnion{SUP,T}, concrete_type_mapping(SUP)) with

NamedTuple([
    key => DiscriminatedUnion{SUP,T} for (key, T) in pairs(concrete_type_mapping(SUP))
  ])
Internal error: encountered unexpected error in runtime:
TypeError(func=:<:, context="", expected=Type, got=S)
ijl_type_error_rt at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_type_error at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_f_issubtype at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
apply_type_nothrow at ./compiler/tfuncs.jl:1360
_builtin_nothrow at ./compiler/tfuncs.jl:1737
builtin_nothrow at ./compiler/tfuncs.jl:1862 [inlined]
builtin_effects at ./compiler/tfuncs.jl:1848
abstract_call_known at ./compiler/abstractinterpretation.jl:1627
abstract_call at ./compiler/abstractinterpretation.jl:1786
abstract_call at ./compiler/abstractinterpretation.jl:1753
abstract_eval_statement at ./compiler/abstractinterpretation.jl:1910
typeinf_local at ./compiler/abstractinterpretation.jl:2386
typeinf_nocycle at ./compiler/abstractinterpretation.jl:2482
_typeinf at ./compiler/typeinfer.jl:230
typeinf at ./compiler/typeinfer.jl:213
typeinf_ext at ./compiler/typeinfer.jl:967
typeinf_ext_toplevel at ./compiler/typeinfer.jl:1000
typeinf_ext_toplevel at ./compiler/typeinfer.jl:996
jfptr_typeinf_ext_toplevel_15369 at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/sys.dylib (unknown line)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_type_infer at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_generate_fptr_impl at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-codegen.1.8.dylib (unknown line)
jl_compile_method_internal at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
map at ./tuple.jl:222 [inlined]
map at ./namedtuple.jl:219
subtypes at ./Untitled-1:20
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_call at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
eval_body at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_interpret_toplevel_thunk at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
top-level scope at Untitled-1:23
jl_toplevel_eval_flex at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_toplevel_eval_flex at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_toplevel_eval_in at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
eval at ./boot.jl:368 [inlined]
include_string at ./loading.jl:1428
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_f__call_latest at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
#invokelatest#2 at ./essentials.jl:729
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
invokelatest at ./essentials.jl:726
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
#inlineeval#71 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:233
inlineeval##kw at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:230 [inlined]
#66 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:157
withpath at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/repl.jl:249
#65 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:155
hideprompt at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/repl.jl:38
#64 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:126
unknown function (ip: 0x1ccf6482f)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
with_logstate at ./logging.jl:511
with_logger at ./logging.jl:623 [inlined]
#63 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:225
unknown function (ip: 0x1ccf645ff)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_f__call_latest at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
#invokelatest#2 at ./essentials.jl:729 [inlined]
invokelatest at ./essentials.jl:726
unknown function (ip: 0x11fe67982)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
macro expansion at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:34 [inlined]
#61 at ./task.jl:484
unknown function (ip: 0x11fe441ff)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
start_task at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
Internal error: encountered unexpected error in runtime:
TypeError(func=:<:, context="", expected=Type, got=S)
ijl_type_error_rt at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_type_error at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_f_issubtype at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
apply_type_nothrow at ./compiler/tfuncs.jl:1360
_builtin_nothrow at ./compiler/tfuncs.jl:1737
builtin_nothrow at ./compiler/tfuncs.jl:1862 [inlined]
builtin_effects at ./compiler/tfuncs.jl:1848
abstract_call_known at ./compiler/abstractinterpretation.jl:1627
abstract_call at ./compiler/abstractinterpretation.jl:1786
abstract_call at ./compiler/abstractinterpretation.jl:1753
abstract_eval_statement at ./compiler/abstractinterpretation.jl:1910
typeinf_local at ./compiler/abstractinterpretation.jl:2386
typeinf_nocycle at ./compiler/abstractinterpretation.jl:2482
_typeinf at ./compiler/typeinfer.jl:230
typeinf at ./compiler/typeinfer.jl:213
typeinf_ext at ./compiler/typeinfer.jl:967
typeinf_ext_toplevel at ./compiler/typeinfer.jl:1000
typeinf_ext_toplevel at ./compiler/typeinfer.jl:996
jfptr_typeinf_ext_toplevel_15369 at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/sys.dylib (unknown line)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_type_infer at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_generate_fptr_impl at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-codegen.1.8.dylib (unknown line)
jl_compile_method_internal at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
map at ./tuple.jl:222 [inlined]
map at ./namedtuple.jl:219
subtypes at ./Untitled-1:20
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_call at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
eval_body at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_interpret_toplevel_thunk at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
top-level scope at Untitled-1:23
jl_toplevel_eval_flex at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_toplevel_eval_flex at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_toplevel_eval_in at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
eval at ./boot.jl:368 [inlined]
include_string at ./loading.jl:1428
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_f__call_latest at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
#invokelatest#2 at ./essentials.jl:729
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
invokelatest at ./essentials.jl:726
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
#inlineeval#71 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:233
inlineeval##kw at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:230 [inlined]
#66 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:157
withpath at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/repl.jl:249
#65 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:155
hideprompt at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/repl.jl:38
#64 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:126
unknown function (ip: 0x1ccf6482f)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
with_logstate at ./logging.jl:511
with_logger at ./logging.jl:623 [inlined]
#63 at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:225
unknown function (ip: 0x1ccf645ff)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
jl_f__call_latest at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
#invokelatest#2 at ./essentials.jl:729 [inlined]
invokelatest at ./essentials.jl:726
unknown function (ip: 0x11fe67982)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
do_apply at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
macro expansion at /Users/krumbiegel/.vscode/extensions/julialang.language-julia-1.45.1/scripts/packages/VSCodeServer/src/eval.jl:34 [inlined]
#61 at ./task.jl:484
unknown function (ip: 0x11fe441ff)
ijl_apply_generic at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
start_task at /Users/krumbiegel/.julia/juliaup/julia-1.8.5+0.x64.apple.darwin14/lib/julia/libjulia-internal.1.8.dylib (unknown line)
(audi = DiscriminatedUnion{Car, Audi}, mercedes = DiscriminatedUnion{Car, Mercedes})
@martinholters
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Reduction:

struct DiscriminatedUnion{S, T<:S} end

function subtypes()
    map(T -> DiscriminatedUnion{Union{Type{String},Type{Int}}[Int][1],T}, (a = Int,))
end

subtypes()

Confirmed to also repro on 1.9.0.

@martinholters
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martinholters commented May 12, 2023 •
edited
Loading

I think

julia/base/compiler/tfuncs.jl

Lines 1668 to 1670 in 6733197

if !(T <: u.var.ub)
return false
end

needs to check whether u.var.ub is a TypeVar first (and also return false in that case).

EDIT: OTOH, this seems fixed on master, so there might be a better fix to backport.

@vtjnash vtjnash changed the title mapping a NamedTuple prints Internal error: encountered unexpected error in runtime [release-1.9] mapping a NamedTuple prints Internal error: encountered unexpected error in runtime May 15, 2023
@martinholters
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Hm, looks like this was fixed by 95cfd62 and then broken again by 5a684f0 -- which reverted the former, but only for 1.9. Anyway, that fix was more of a fluke anyway, since this variation also fails on master:

function subtypes()
    map(T -> DiscriminatedUnion{Union{Type{String},Type{Int}}[Int][1],T}, (a = Union{Type{String},Type{Int}}[Int][1],))
end

@vtjnash vtjnash added bug Indicates an unexpected problem or unintended behavior compiler:inference Type inference labels May 17, 2023
@vtjnash vtjnash changed the title [release-1.9] mapping a NamedTuple prints Internal error: encountered unexpected error in runtime mapping a NamedTuple prints Internal error: encountered unexpected error in runtime May 17, 2023
martinholters added a commit that referenced this issue May 17, 2023
@martinholters
Make apply_type_nothrow robust agaist TypeVars in upper bounds
4bb4410 
For types like `Foo{S, T<:S}`, `apply_type_nothrow` could in some
situations check whether the argument is a subtype of the upper bound of
`T`, i.e. `S`, but subtyping agaist a plain `TypeVar` would fail.
Instead return `false` in this case.

Fixes #49785.
@martinholters martinholters mentioned this issue May 17, 2023
Merged
martinholters added a commit that referenced this issue May 19, 2023
@martinholters
Make apply_type_nothrow robust against TypeVars in upper bounds (#…
1acec74 
…49863)

For types like `Foo{S, T<:S}`, `apply_type_nothrow` could in some
situations check whether the argument is a subtype of the upper bound of
`T`, i.e. `S`, but subtyping agaist a plain `TypeVar` would fail.
Instead return `false` in this case.

Fixes #49785.
KristofferC pushed a commit that referenced this issue Jun 27, 2023
@martinholters
Make apply_type_nothrow robust against TypeVars in upper bounds (#…
d8291ed 
…49863)

For types like `Foo{S, T<:S}`, `apply_type_nothrow` could in some
situations check whether the argument is a subtype of the upper bound of
`T`, i.e. `S`, but subtyping agaist a plain `TypeVar` would fail.
Instead return `false` in this case.

Fixes #49785.

(cherry picked from commit 1acec74)
KristofferC pushed a commit that referenced this issue Jun 27, 2023
Make apply_type_nothrow robust against TypeVars in upper bounds (#…
118915f 
…49863)

For types like `Foo{S, T<:S}`, `apply_type_nothrow` could in some
situations check whether the argument is a subtype of the upper bound of
`T`, i.e. `S`, but subtyping agaist a plain `TypeVar` would fail.
Instead return `false` in this case.

Fixes #49785.

(cherry picked from commit 1acec74)
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bug Indicates an unexpected problem or unintended behavior compiler:inference Type inference
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Make apply_type_nothrow robust against TypeVars in upper bounds JuliaLang/julia
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@vtjnash @martinholters @jkrumbiegel @aviatesk