https://github.com/JuliaLang/julia
Tip revision: cf55683b764816b6ec4c6e5f0414ac26fb30af79 authored by Rafael Fourquet on 09 June 2017, 07:36:25 UTC
add at-defaults macro: default args an any place in a function
add at-defaults macro: default args an any place in a function
Tip revision: cf55683
reflection.jl
# This file is a part of Julia. License is MIT: https://julialang.org/license
# code_native / code_llvm (issue #8239)
# It's hard to really test these, but just running them should be
# sufficient to catch segfault bugs.
module ReflectionTest
using Base.Test
function test_ast_reflection(freflect, f, types)
@test !isempty(freflect(f, types))
nothing
end
function test_bin_reflection(freflect, f, types)
iob = IOBuffer()
freflect(iob, f, types)
str = String(take!(iob))
@test !isempty(str)
nothing
end
function test_code_reflection(freflect, f, types, tester)
tester(freflect, f, types)
tester(freflect, f, (types.parameters...))
nothing
end
function test_code_reflections(tester, freflect)
test_code_reflection(freflect, ismatch,
Tuple{Regex, AbstractString}, tester) # abstract type
test_code_reflection(freflect, +, Tuple{Int, Int}, tester) # leaftype signature
test_code_reflection(freflect, +,
Tuple{Array{Float32}, Array{Float32}}, tester) # incomplete types
test_code_reflection(freflect, Module, Tuple{}, tester) # Module() constructor (transforms to call)
test_code_reflection(freflect, Array{Int64}, Tuple{Array{Int32}}, tester) # with incomplete types
test_code_reflection(freflect, muladd, Tuple{Float64, Float64, Float64}, tester)
end
test_code_reflections(test_ast_reflection, code_lowered)
test_code_reflections(test_ast_reflection, code_typed)
test_code_reflections(test_bin_reflection, code_llvm)
test_code_reflections(test_bin_reflection, code_native)
# Issue #16326
mktemp() do f, io
OLDSTDOUT = STDOUT
redirect_stdout(io)
@test try @code_native map(abs, rand(3)); true; catch false; end
redirect_stdout(OLDSTDOUT)
nothing
end
end # module ReflectionTest
# code_warntype
module WarnType
using Base.Test
function warntype_hastag(f, types, tag)
iob = IOBuffer()
code_warntype(iob, f, types)
str = String(take!(iob))
return !isempty(search(str, tag))
end
pos_stable(x) = x > 0 ? x : zero(x)
pos_unstable(x) = x > 0 ? x : 0
tag = Base.have_color ? Base.error_color() : "UNION"
@test warntype_hastag(pos_unstable, Tuple{Float64}, tag)
@test !warntype_hastag(pos_stable, Tuple{Float64}, tag)
mutable struct Stable{T,N}
A::Array{T,N}
end
mutable struct Unstable{T}
A::Array{T}
end
Base.getindex(A::Stable, i) = A.A[i]
Base.getindex(A::Unstable, i) = A.A[i]
tag = Base.have_color ? Base.error_color() : "ARRAY{FLOAT64,N}"
@test warntype_hastag(getindex, Tuple{Unstable{Float64},Int}, tag)
@test !warntype_hastag(getindex, Tuple{Stable{Float64,2},Int}, tag)
@test warntype_hastag(getindex, Tuple{Stable{Float64},Int}, tag)
# Make sure emphasis is not used for other functions
tag = Base.have_color ? Base.error_color() : "ANY"
iob = IOBuffer()
show(iob, expand(Main, :(x -> x^2)))
str = String(take!(iob))
@test isempty(search(str, tag))
module ImportIntrinsics15819
# Make sure changing the lookup path of an intrinsic doesn't break
# the heuristic for type instability warning.
import Core.Intrinsics: sqrt_llvm, bitcast
# Use import
sqrt15819(x::Float64) = bitcast(Float64, sqrt_llvm(x))
# Use fully qualified name
sqrt15819(x::Float32) = bitcast(Float32, Core.Intrinsics.sqrt_llvm(x))
end
foo11122(x) = @fastmath x - 1.0
# issue #11122, #13568 and #15819
@test !warntype_hastag(+, Tuple{Int,Int}, tag)
@test !warntype_hastag(-, Tuple{Int,Int}, tag)
@test !warntype_hastag(*, Tuple{Int,Int}, tag)
@test !warntype_hastag(/, Tuple{Int,Int}, tag)
@test !warntype_hastag(foo11122, Tuple{Float32}, tag)
@test !warntype_hastag(foo11122, Tuple{Float64}, tag)
@test !warntype_hastag(foo11122, Tuple{Int}, tag)
@test !warntype_hastag(sqrt, Tuple{Int}, tag)
@test !warntype_hastag(sqrt, Tuple{Float64}, tag)
@test !warntype_hastag(^, Tuple{Float64,Int32}, tag)
@test !warntype_hastag(^, Tuple{Float32,Int32}, tag)
@test !warntype_hastag(ImportIntrinsics15819.sqrt15819, Tuple{Float64}, tag)
@test !warntype_hastag(ImportIntrinsics15819.sqrt15819, Tuple{Float32}, tag)
end
# isbits
@test !isbits(Array{Int})
@test isbits(Float32)
@test isbits(Int)
@test !isbits(AbstractString)
@test isbits(Tuple{Int, Vararg{Int, 2}})
@test !isbits(Tuple{Int, Vararg{Int}})
@test !isbits(Tuple{Integer, Vararg{Int, 2}})
@test isbits(Tuple{Int, Vararg{Any, 0}})
@test isbits(Tuple{Vararg{Any, 0}})
# issue #16670
@test isleaftype(Tuple{Int, Vararg{Int, 2}})
@test !isleaftype(Tuple{Integer, Vararg{Int, 2}})
@test !isleaftype(Tuple{Int, Vararg{Int}})
@test isleaftype(Type{Tuple{Integer, Vararg{Int}}})
@test isleaftype(Type{Vector})
# issue #10165
i10165(::Type) = 0
i10165{T,n}(::Type{AbstractArray{T,n}}) = 1
@test i10165(AbstractArray{Int,n} where n) == 0
@test which(i10165, Tuple{Type{AbstractArray{Int,n} where n},}).sig == Tuple{typeof(i10165),Type}
# fullname
@test fullname(Base) == (:Base,)
@test fullname(Base.Pkg) == (:Base, :Pkg)
const a_const = 1
not_const = 1
@test isconst(@__MODULE__, :a_const) == true
@test isconst(Base, :pi) == true
@test isconst(@__MODULE__, :pi) == true
@test isconst(@__MODULE__, :not_const) == false
@test isconst(@__MODULE__, :is_not_defined) == false
@test isimmutable(1) == true
@test isimmutable([]) == false
## find bindings tests
@test ccall(:jl_get_module_of_binding, Any, (Any, Any), Base, :sin)==Base
# For curmod_*
include("testenv.jl")
module TestMod7648
using Base.Test
import Base.convert
import ..curmod_name, ..curmod
export a9475, foo9475, c7648, foo7648, foo7648_nomethods, Foo7648
const c7648 = 8
d7648 = 9
const f7648 = 10
foo7648(x) = x
function foo7648_nomethods end
mutable struct Foo7648 end
module TestModSub9475
using Base.Test
using ..TestMod7648
import ..curmod_name
export a9475, foo9475
a9475 = 5
b9475 = 7
foo9475(x) = x
let
@test Base.binding_module(@__MODULE__, :a9475) == @__MODULE__
@test Base.binding_module(@__MODULE__, :c7648) == TestMod7648
@test Base.module_name(@__MODULE__) == :TestModSub9475
@test Base.fullname(@__MODULE__) == (curmod_name..., :TestMod7648, :TestModSub9475)
@test Base.module_parent(@__MODULE__) == TestMod7648
end
end # module TestModSub9475
using .TestModSub9475
let
@test Base.binding_module(@__MODULE__, :d7648) == @__MODULE__
@test Base.binding_module(@__MODULE__, :a9475) == TestModSub9475
@test Base.module_name(@__MODULE__) == :TestMod7648
@test Base.module_parent(@__MODULE__) == curmod
end
end # module TestMod7648
let
@test Base.binding_module(TestMod7648, :d7648) == TestMod7648
@test Base.binding_module(TestMod7648, :a9475) == TestMod7648.TestModSub9475
@test Base.binding_module(TestMod7648.TestModSub9475, :b9475) == TestMod7648.TestModSub9475
@test Set(names(TestMod7648))==Set([:TestMod7648, :a9475, :foo9475, :c7648, :foo7648, :foo7648_nomethods, :Foo7648])
@test Set(names(TestMod7648, true)) == Set([:TestMod7648, :TestModSub9475, :a9475, :foo9475, :c7648, :d7648, :f7648,
:foo7648, Symbol("#foo7648"), :foo7648_nomethods, Symbol("#foo7648_nomethods"),
:Foo7648, :eval, Symbol("#eval"), :include, Symbol("#include")])
@test Set(names(TestMod7648, true, true)) == Set([:TestMod7648, :TestModSub9475, :a9475, :foo9475, :c7648, :d7648, :f7648,
:foo7648, Symbol("#foo7648"), :foo7648_nomethods, Symbol("#foo7648_nomethods"),
:Foo7648, :eval, Symbol("#eval"), :include, Symbol("#include"),
:convert, :curmod_name, :curmod])
@test isconst(TestMod7648, :c7648)
@test !isconst(TestMod7648, :d7648)
end
let
using .TestMod7648
@test Base.binding_module(@__MODULE__, :a9475) == TestMod7648.TestModSub9475
@test Base.binding_module(@__MODULE__, :c7648) == TestMod7648
@test Base.function_name(foo7648) == :foo7648
@test Base.function_module(foo7648, (Any,)) == TestMod7648
@test Base.function_module(foo7648) == TestMod7648
@test Base.function_module(foo7648_nomethods) == TestMod7648
@test Base.function_module(foo9475, (Any,)) == TestMod7648.TestModSub9475
@test Base.function_module(foo9475) == TestMod7648.TestModSub9475
@test Base.datatype_module(Foo7648) == TestMod7648
@test Base.datatype_name(Foo7648) == :Foo7648
@test basename(functionloc(foo7648, (Any,))[1]) == "reflection.jl"
@test first(methods(TestMod7648.TestModSub9475.foo7648)) == @which foo7648(5)
@test TestMod7648 == @which foo7648
@test TestMod7648.TestModSub9475 == @which a9475
end
@test_throws ArgumentError which(===, Tuple{Int, Int})
@test_throws ArgumentError code_typed(===, Tuple{Int, Int})
@test_throws ArgumentError code_llvm(===, Tuple{Int, Int})
@test_throws ArgumentError code_native(===, Tuple{Int, Int})
@test_throws ArgumentError Base.return_types(===, Tuple{Int, Int})
module TestingExported
using Base.Test
import Base.isexported
global this_is_not_defined
export this_is_not_defined
@test_throws ErrorException which(:this_is_not_defined)
@test_throws ErrorException @which this_is_not_defined
@test_throws ErrorException which(:this_is_not_exported)
@test isexported(@__MODULE__, :this_is_not_defined)
@test !isexported(@__MODULE__, :this_is_not_exported)
const a_value = 1
@test Base.which_module(@__MODULE__, :a_value) === @__MODULE__
@test @which(a_value) === @__MODULE__
@test_throws ErrorException which(:a_value)
@test which(:Core) === Main
@test !isexported(@__MODULE__, :a_value)
end
# issue #13264
@test isa((@which vcat(1...)), Method)
# issue #13464
let t13464 = "hey there sailor"
try
@which t13464[1,1] = (1.0,true)
error("unexpected")
catch err13464
@test startswith(err13464.msg, "expression is not a function call, or is too complex")
end
end
# PR 13825
let ex = :(a + b)
@test string(ex) == "a + b"
ex.typ = Integer
@test string(ex) == "(a + b)::Integer"
end
foo13825{T, N}(::Array{T,N}, ::Array, ::Vector) = nothing
@test startswith(string(first(methods(foo13825))),
"foo13825(::Array{T,N}, ::Array, ::Array{T,1} where T)")
mutable struct TLayout
x::Int8
y::Int16
z::Int32
end
tlayout = TLayout(5,7,11)
@test fieldnames(tlayout) == fieldnames(TLayout) == [:x, :y, :z]
@test [(fieldoffset(TLayout,i), fieldname(TLayout,i), fieldtype(TLayout,i)) for i = 1:nfields(TLayout)] ==
[(0, :x, Int8), (2, :y, Int16), (4, :z, Int32)]
@test_throws BoundsError fieldtype(TLayout, 0)
@test_throws BoundsError fieldname(TLayout, 0)
@test_throws BoundsError fieldoffset(TLayout, 0)
@test_throws BoundsError fieldtype(TLayout, 4)
@test_throws BoundsError fieldname(TLayout, 4)
@test_throws BoundsError fieldoffset(TLayout, 4)
@test fieldtype(Tuple{Vararg{Int8}}, 1) === Int8
@test fieldtype(Tuple{Vararg{Int8}}, 10) === Int8
@test_throws BoundsError fieldtype(Tuple{Vararg{Int8}}, 0)
@test fieldnames((1,2,3)) == fieldnames(NTuple{3, Int}) == [fieldname(NTuple{3, Int}, i) for i = 1:3] == [1, 2, 3]
@test_throws BoundsError fieldname(NTuple{3, Int}, 0)
@test_throws BoundsError fieldname(NTuple{3, Int}, 4)
import Base: isstructtype, type_alignment, return_types
@test !isstructtype(Union{})
@test !isstructtype(Union{Int,Float64})
@test !isstructtype(Int)
@test isstructtype(TLayout)
@test type_alignment(UInt16) == 2
@test type_alignment(TLayout) == 4
let rts = return_types(TLayout)
@test length(rts) >= 3 # general constructor, specific constructor, and call-to-convert adapter(s)
@test all(rts .== TLayout)
end
# issue #15447
@noinline function f15447(s, a)
if s
return a
else
nb = 0
return nb
end
end
@test functionloc(f15447)[2] > 0
# issue #14346
@noinline function f14346(id, mask, limit)
if id <= limit && mask[id]
return true
end
end
@test functionloc(f14346)[2] == @__LINE__() - 4
# test jl_get_llvm_fptr. We test functions both in and definitely not in the system image
definitely_not_in_sysimg() = nothing
for (f, t) in Any[(definitely_not_in_sysimg, Tuple{}),
(Base.:+, Tuple{Int, Int})]
meth = which(f, t)
tt = Tuple{typeof(f), t.parameters...}
env = (ccall(:jl_match_method, Any, (Any, Any), tt, meth.sig))[2]
world = typemax(UInt)
linfo = ccall(:jl_specializations_get_linfo, Ref{Core.MethodInstance}, (Any, Any, Any, UInt), meth, tt, env, world)
params = Base.CodegenParams()
llvmf = ccall(:jl_get_llvmf_decl, Ptr{Void}, (Any, UInt, Bool, Base.CodegenParams), linfo::Core.MethodInstance, world, true, params)
@test llvmf != C_NULL
@test ccall(:jl_get_llvm_fptr, Ptr{Void}, (Ptr{Void},), llvmf) != C_NULL
end
module MacroTest
export @macrotest
macro macrotest(x::Int, y::Symbol) end
macro macrotest(x::Int, y::Int)
nothing #This is here because of #15280
end
end
let
using .MacroTest
a = 1
m = getfield(@__MODULE__, Symbol("@macrotest"))
@test which(m, Tuple{LineNumberNode, Module, Int, Symbol}) == @which @macrotest 1 a
@test which(m, Tuple{LineNumberNode, Module, Int, Int}) == @which @macrotest 1 1
@test first(methods(m, Tuple{LineNumberNode, Module, Int, Int})) == @which MacroTest.@macrotest 1 1
@test functionloc(@which @macrotest 1 1) == @functionloc @macrotest 1 1
end
# issue #15714
# show variable names for slots and suppress spurious type warnings
function f15714(array_var15714)
for index_var15714 in eachindex(array_var15714)
array_var15714[index_var15714] += 0
end
end
function g15714(array_var15714)
for index_var15714 in eachindex(array_var15714)
array_var15714[index_var15714] += 0
end
for index_var15714 in eachindex(array_var15714)
array_var15714[index_var15714] += 0
end
end
used_dup_var_tested15714 = false
used_unique_var_tested15714 = false
function test_typed_ast_printing(f::ANY, types::ANY, must_used_vars)
src, rettype = code_typed(f, types)[1]
dupnames = Set()
slotnames = Set()
for name in src.slotnames
if name in slotnames
push!(dupnames, name)
else
push!(slotnames, name)
end
end
# Make sure must_used_vars are in slotnames
for name in must_used_vars
@test name in slotnames
end
for str in (sprint(code_warntype, f, types),
stringmime("text/plain", src))
for var in must_used_vars
@test contains(str, string(var))
end
@test !contains(str, "Any")
@test !contains(str, "ANY")
# Check that we are not printing the bare slot numbers
for i in 1:length(src.slotnames)
name = src.slotnames[i]
if name in dupnames
@test contains(str, "_$i")
if name in must_used_vars
global used_dup_var_tested15714 = true
end
else
@test !contains(str, "_$i")
if name in must_used_vars
global used_unique_var_tested15714 = true
end
end
end
end
# Make sure printing an AST outside CodeInfo still works.
str = sprint(show, src.code)
# Check that we are printing the slot numbers when we don't have the context
# Use the variable names that we know should be present in the optimized AST
for i in 2:length(src.slotnames)
name = src.slotnames[i]
if name in must_used_vars
@test contains(str, "_$i")
end
end
end
test_typed_ast_printing(f15714, Tuple{Vector{Float32}},
[:array_var15714, :index_var15714])
test_typed_ast_printing(g15714, Tuple{Vector{Float32}},
[:array_var15714, :index_var15714])
@test used_dup_var_tested15714
@test used_unique_var_tested15714
let li = typeof(getfield).name.mt.cache.func::Core.MethodInstance,
lrepr = string(li),
mrepr = string(li.def),
lmime = stringmime("text/plain", li),
mmime = stringmime("text/plain", li.def)
@test lrepr == lmime == "MethodInstance for getfield(...)"
@test mrepr == mmime == "getfield(...) in Core"
end
# Linfo Tracing test
tracefoo(x, y) = x+y
didtrace = false
tracer(x::Ptr{Void}) = (@test isa(unsafe_pointer_to_objref(x), Core.MethodInstance); global didtrace = true; nothing)
ccall(:jl_register_method_tracer, Void, (Ptr{Void},), cfunction(tracer, Void, (Ptr{Void},)))
meth = which(tracefoo,Tuple{Any,Any})
ccall(:jl_trace_method, Void, (Any,), meth)
@test tracefoo(1, 2) == 3
ccall(:jl_untrace_method, Void, (Any,), meth)
@test didtrace
didtrace = false
@test tracefoo(1.0, 2.0) == 3.0
@test !didtrace
ccall(:jl_register_method_tracer, Void, (Ptr{Void},), C_NULL)
# Method Tracing test
methtracer(x::Ptr{Void}) = (@test isa(unsafe_pointer_to_objref(x), Method); global didtrace = true; nothing)
ccall(:jl_register_newmeth_tracer, Void, (Ptr{Void},), cfunction(methtracer, Void, (Ptr{Void},)))
tracefoo2(x, y) = x*y
@test didtrace
didtrace = false
tracefoo(x::Int64, y::Int64) = x*y
@test didtrace
didtrace = false
ccall(:jl_register_newmeth_tracer, Void, (Ptr{Void},), C_NULL)
# test for reflection over large method tables
for i = 1:100; @eval fLargeTable(::Val{$i}, ::Any) = 1; end
for i = 1:100; @eval fLargeTable(::Any, ::Val{$i}) = 2; end
fLargeTable(::Any...) = 3
@test length(methods(fLargeTable, Tuple{})) == 1
fLargeTable(::Complex, ::Complex) = 4
fLargeTable(::Union{Complex64, Complex128}...) = 5
@test length(methods(fLargeTable, Tuple{})) == 1
fLargeTable() = 4
@test length(methods(fLargeTable)) == 204
@test length(methods(fLargeTable, Tuple{})) == 1
@test fLargeTable(1im, 2im) == 4
@test fLargeTable(1.0im, 2.0im) == 5
@test_throws MethodError fLargeTable(Val{1}(), Val{1}())
@test fLargeTable(Val{1}(), 1) == 1
@test fLargeTable(1, Val{1}()) == 2
# issue #15280
function f15280(x) end
@test functionloc(f15280)[2] > 0
# bug found in #16850, Base.url with backslashes on Windows
function module_depth(from::Module, to::Module)
if from === to
return 0
else
return 1 + module_depth(from, module_parent(to))
end
end
function has_backslashes(mod::Module)
for n in names(mod, true, true)
isdefined(mod, n) || continue
Base.isdeprecated(mod, n) && continue
f = getfield(mod, n)
if isa(f, Module) && module_depth(Main, f) <= module_depth(Main, mod)
continue
end
h = has_backslashes(f)
isnull(h) || return h
end
return Nullable{Method}()
end
function has_backslashes(f::Function)
for m in methods(f)
h = has_backslashes(m)
isnull(h) || return h
end
return Nullable{Method}()
end
function has_backslashes(meth::Method)
if '\\' in string(meth.file)
return Nullable{Method}(meth)
else
return Nullable{Method}()
end
end
has_backslashes(x) = Nullable{Method}()
h16850 = has_backslashes(Base)
if is_windows()
if isnull(h16850)
warn("No methods found in Base with backslashes in file name, ",
"skipping test for Base.url")
else
@test !('\\' in Base.url(get(h16850)))
end
else
@test isnull(h16850)
end
# Adds test for PR #17636
let a = @code_typed 1 + 1
b = @code_lowered 1 + 1
@test isa(a, Pair{CodeInfo, DataType})
@test isa(b, CodeInfo)
@test isa(a[1].code, Array{Any,1})
@test isa(b.code, Array{Any,1})
function thing(a::Array, b::Real)
println("thing")
end
function thing(a::AbstractArray, b::Int)
println("blah")
end
@test_throws MethodError thing(rand(10), 1)
a = @code_typed thing(rand(10), 1)
b = @code_lowered thing(rand(10), 1)
@test length(a) == 0
@test length(b) == 0
end
mutable struct A18434
end
(::Type{A18434})(x; y=1) = 1
global counter18434 = 0
function get_A18434()
global counter18434
counter18434 += 1
return A18434
end
@which get_A18434()(1; y=2)
@test counter18434 == 1
@which get_A18434()(1, y=2)
@test counter18434 == 2
# PR #18888: code_typed shouldn't cache if not optimizing
let
world = typemax(UInt)
f18888() = return nothing
m = first(methods(f18888, Tuple{}))
@test m.specializations === nothing
ft = typeof(f18888)
code_typed(f18888, Tuple{}; optimize=false)
@test m.specializations !== nothing # uncached, but creates the specializations entry
code = Core.Inference.code_for_method(m, Tuple{ft}, Core.svec(), world, true)
@test !isdefined(code, :inferred)
code_typed(f18888, Tuple{}; optimize=true)
code = Core.Inference.code_for_method(m, Tuple{ft}, Core.svec(), world, true)
@test isdefined(code, :inferred)
end
# Issue #18883, code_llvm/code_native for generated functions
@generated f18883() = nothing
@test !isempty(sprint(code_llvm, f18883, Tuple{}))
@test !isempty(sprint(code_native, f18883, Tuple{}))
# PR #19964
@test isempty(subtypes(Float64))
# New reflection methods in 0.6
struct ReflectionExample{T<:AbstractFloat, N}
x::Tuple{T, N}
end
@test Base.isabstract(AbstractArray)
@test !Base.isabstract(ReflectionExample)
@test !Base.isabstract(Int)
@test Base.parameter_upper_bound(ReflectionExample, 1) === AbstractFloat
@test Base.parameter_upper_bound(ReflectionExample, 2) === Any
@test Base.parameter_upper_bound(ReflectionExample{T, N} where T where N <: Real, 2) === Real
let
wrapperT(T) = Base.typename(T).wrapper
@test @inferred wrapperT(ReflectionExample{Float64, Int64}) == ReflectionExample
@test @inferred wrapperT(ReflectionExample{Float64, N} where N) == ReflectionExample
@test @inferred wrapperT(ReflectionExample{T, Int64} where T) == ReflectionExample
@test @inferred wrapperT(ReflectionExample) == ReflectionExample
@test @inferred wrapperT(Union{ReflectionExample{Union{},1},ReflectionExample{Float64,1}}) == ReflectionExample
@test_throws ErrorException Base.typename(Union{Int, Float64})
end
# Issue #20086
abstract type A20086{T,N} end
struct B20086{T,N} <: A20086{T,N} end
@test subtypes(A20086) == [B20086]
@test subtypes(A20086{Int}) == [B20086{Int}]
@test subtypes(A20086{T,3} where T) == [B20086{T,3} where T]
@test subtypes(A20086{Int,3}) == [B20086{Int,3}]