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core.jl
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core.jl
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# test core language features
# basic type relationships
@assert Int8 <: Integer
@assert Int32 <: Integer
@assert (Int8,Int8) <: (Integer,Integer)
@assert !(AbstractArray{Float64,2} <: AbstractArray{Number,2})
@assert !(AbstractArray{Float64,1} <: AbstractArray{Float64,2})
@assert (Integer,Integer...) <: (Integer,Real...)
@assert (Integer,Float64,Integer...) <: (Integer,Number...)
@assert (Integer,Float64) <: (Integer,Number...)
@assert (Int32,) <: (Number...)
@assert () <: (Number...)
@assert !((Int32...) <: (Int32,))
@assert !((Int32...) <: (Number,Integer))
@assert !((Integer...,) <: (Integer,Integer,Integer...))
@assert !(Array{Int8,1} <: Array{Any,1})
@assert !(Array{Any,1} <: Array{Int8,1})
@assert Array{Int8,1} <: Array{Int8,1}
@assert !subtype(Type{None}, Type{Int32})
@assert !subtype(Vector{Float64},Vector{Union(Float64,Float32)})
@assert is(None, tintersect(Vector{Float64},Vector{Union(Float64,Float32)}))
@assert !isa(Array,Type{Any})
@assert subtype(Type{ComplexPair},CompositeKind)
@assert isa(ComplexPair,Type{ComplexPair})
@assert !subtype(Type{Ptr{None}},Type{Ptr})
@assert !subtype(Type{Rational{Int}}, Type{Rational})
let T = typevar(:T,true)
@assert !is(None, tintersect(Array{None},AbstractArray{T}))
@assert is(None, tintersect((Type{Ptr{Uint8}},Ptr{None}),
(Type{Ptr{T}},Ptr{T})))
@assert !subtype(Type{T},TypeVar)
@assert isequal(tintersect((Range{Int},(Int,Int)),(AbstractArray{T},Dims)),
(Range{Int},(Int,Int)))
@assert isequal(tintersect((T, AbstractArray{T}),(Number, Array{Int,1})),
(Int, Array{Int,1}))
@assert isequal(tintersect((T, AbstractArray{T}),(Int, Array{Number,1})),
None)
@assert isequal(tintersect((T, AbstractArray{T}),(Any, Array{Number,1})),
(Number, Array{Number,1}))
@assert !is(None, tintersect((Array{T}, Array{T}), (Array, Array{Any})))
end
let N = typevar(:N,true)
@assert isequal(tintersect((NTuple{N,Integer},NTuple{N,Integer}),
((Integer,Integer), (Integer...))),
((Integer,Integer), (Integer,Integer)))
@assert isequal(tintersect((NTuple{N,Integer},NTuple{N,Integer}),
((Integer...), (Integer,Integer))),
((Integer,Integer), (Integer,Integer)))
end
@assert is(None, tintersect(Type{Any},Type{ComplexPair}))
@assert is(None, tintersect(Type{Any},Type{typevar(:T,Real)}))
@assert !subtype(Type{Array{Integer}},Type{AbstractArray{Integer}})
@assert !subtype(Type{Array{Integer}},Type{Array{typevar(:T,Integer)}})
@assert is(None, tintersect(Type{Function},BitsKind))
@assert is(Type{Int32}, tintersect(Type{Int32},BitsKind))
@assert !subtype(Type,TypeVar)
# ntuples
nttest1{n}(x::NTuple{n,Int}) = n
@assert nttest1(()) == 0
@assert nttest1((1,2)) == 2
@assert NTuple <: Tuple
@assert NTuple{typevar(:T),Int32} <: (Int32...)
@assert !(NTuple{typevar(:T),Int32} <: (Int32,Int32...))
@assert (Int32...) <: NTuple{typevar(:T),Int32}
@assert (Int32,Int32...) <: NTuple{typevar(:T),Int32}
# type declarations
abstract Sup_{A,B}
abstract Qux_{T} <: Sup_{Qux_{Int},T}
@assert subtype(Qux_{Int}.super, Sup_)
@assert is(Qux_{Int}, Qux_{Int}.super.parameters[1])
@assert is(Qux_{Int}.super.parameters[2], Int)
@assert subtype(Qux_{Char}.super, Sup_)
@assert is(Qux_{Int}, Qux_{Char}.super.parameters[1])
@assert is(Qux_{Char}.super.parameters[2], Char)
@assert subtype(Qux_.super.parameters[1].super, Sup_)
@assert is(Qux_{Int}, Qux_.super.parameters[1].super.parameters[1])
@assert is(Int, Qux_.super.parameters[1].super.parameters[2])
type Foo_{T} x::Foo_{Int} end
@assert is(Foo_.types[1], Foo_{Int})
@assert is(Foo_.types[1].types[1], Foo_{Int})
type Circ_{T} x::Circ_{T} end
# this does not necessarily have to be true, but it's nice
# TODO: it shouldn't be true!! (issue #786)
@assert is(Circ_, Circ_.types[1])
x = (2,3)
@assert +(x...) == 5
# bits types
if WORD_SIZE == 64
@assert isa((()->box(Ptr{Int8},unbox64(0)))(), Ptr{Int8})
else
@assert isa((()->box(Ptr{Int8},unbox32(0)))(), Ptr{Int8})
end
@assert isa(convert(Char,65), Char)
# conversions
function fooo()
local x::Int8
x = 1000
x
end
@assert int32(fooo()) == -24
function foo()
local x::Int8
function bar()
x = 1000
end
bar()
x
end
@assert int32(foo()) == -24
function bar{T}(x::T)
local z::ComplexPair{T}
z = x
z
end
@assert bar(3.0) == ComplexPair(3.0,0.0)
z = convert(ComplexPair{Float64},2)
@assert z == ComplexPair(2.0,0.0)
# misc
fib(n) = n < 2 ? n : fib(n-1) + fib(n-2)
@assert fib(20) == 6765
# static parameters
sptest1{T}(x::T, y::T) = 42
sptest1{T,S}(x::T, y::S) = 43
@assert sptest1(1,2) == 42
@assert sptest1(1,"b") == 43
sptest2{T}(x::T) = T
@assert is(sptest2(:a),Symbol)
sptest3{T}(x::T) = y->T
let m = sptest3(:a)
@assert is(m(0),Symbol)
end
# closures
function clotest()
c = 0
function inc()
c += 1
end
function dec()
c -= 1
end
inc(); inc()
@assert c == 2
dec()
@assert c == 1
@assert (()->c)() == 1
fibb(n) = n < 2 ? n : fibb(n-1)+fibb(n-2)
assert(fibb(10)==55)
return (n->(c+=n), ()->c)
end
let T = clotest()
(inc, C) = T
inc(11)
@assert C() == 12
end
Yc(f) = (h->f(x->h(h)(x)))(h->f(x->h(h)(x)))
yfib = Yc(fib->(n->(n < 2 ? n : fib(n-1) + fib(n-2))))
@assert yfib(20) == 6765
# variable scope, globals
glob_x = 23
function glotest()
global glob_x
glob_x = 24
loc_x = 8
function inner()
global loc_x = 10
glob_x = 88
end
function inner2()
local glob_x # override
global loc_x
glob_x = 2
@assert glob_x == 2
@assert loc_x == 10
end
inner()
inner2()
@assert glob_x == 88
@assert loc_x == 8
end
glotest()
@assert glob_x == 88
@assert loc_x == 10
# dispatch
begin
local foo, bar, baz
foo(x::(Any...))=0
foo(x::(Integer...))=1
@assert foo((:a,))==0
@assert foo(( 2,))==1
bar{T}(x::(T,T,T,T))=1
bar(x::(Any,Any,Any,Any))=2
@assert bar((1,1,1,1)) == 1
@assert bar((1,1,1,"a")) == 2
@assert bar((:a,:a,:a,:a)) == 1
baz(::Type{Rational}) = 1
baz{T}(::Type{Rational{T}}) = 2
@assert baz(Rational) == 1
@assert baz(Rational{Int}) == 2
end
# syntax
@assert (true ? 1 : false ? 2 : 3) == 1
begin
local mytype
function mytype(vec)
convert(Vector{(ASCIIString, BitsKind)}, vec)
end
some_data = {("a", Int32), ("b", Int32)}
@assert isa(mytype(some_data),Vector{(ASCIIString, BitsKind)})
end
type MyArray{N} <: AbstractArray{Int, N}
end
begin
local x
x = MyArray{1}()
foob(x::AbstractArray)=0
foob{T}(x::AbstractVector{T})=1
@assert foob(x) == 1
end
begin
local f, g, a
f{T}(a::Vector{Vector{T}}) = a
g{T}(a::Vector{Vector{T}}) = a
a = Vector{Int}[]
@assert is(f(a), a)
@assert is(g(a), a)
end
type _AA{T}; a::T; end
typealias _AoA{T} _AA{_AA{T}}
begin
local g, a
g{T}(a::_AA{_AA{T}}) = a
a = _AA(_AA(1))
@assert is(g(a),a)
end