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Merge tests into a larger file (part 3 of ∞: generics) (#9347)

Browse Source 
* merge generics issues tests
* merge tgeneric
* merge test with local imports
* merge tcan tests
* merge matcher tests
* more issue tests merged
* one more tcan test
* merge various small tests into one file
* add a test for #3717
This commit is contained in:
Miran
2018-10-14 08:50:39 +02:00
committed by Andreas Rumpf
parent afd5abdfc2
commit 9f8b93641e
65 changed files with 1236 additions and 1276 deletions
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29
tests/generics/t1050.nim
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@@ -1,29 +0,0 @@
discard """
msg: "int"
output: "4"
"""
import typetraits
type ArrayType[T] = distinct T
proc arrayItem(a: ArrayType): auto =
static: echo(name(type(a).T))
result = (type(a).T)(4)
var arr: ArrayType[int]
echo arrayItem(arr)
# bug #5597
template fail() = "what"
proc g[T](x: var T) =
x.fail = 3
type
Obj = object
fail: int
var y: Obj
g y

25
tests/generics/t1056.nim
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@@ -1,25 +0,0 @@
discard """
output: '''TMatrix[3, 3, system.int]
3'''
"""
import typetraits
type
TMatrix*[N,M: static[int], T] = object
data*: array[0..N*M-1, T]
TMat2[T] = TMatrix[2,2,T]
proc echoMatrix(a: TMatrix) =
echo a.type.name
echo TMatrix.N
proc echoMat2(a: TMat2) =
echo TMat2.M
var m = TMatrix[3,3,int](data: [1,2,3,4,5,6,7,8,9])
echoMatrix m
#echoMat2 m

44
tests/generics/t1789.nim
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@@ -1,44 +0,0 @@
discard """
output: "3\n0"
"""
# https://github.com/Araq/Nim/issues/1789
type
Foo[N: static[int]] = object
proc bindStaticN[N](foo: Foo[N]) =
var ar0: array[3, int]
var ar1: array[N, int]
var ar2: array[1..N, int]
var ar3: array[0..(N+10), float]
echo N
var f: Foo[3]
f.bindStaticN
# case 2
type
ObjectWithStatic[X, Y: static[int], T] = object
bar: array[X * Y, T] # this one works
AliasWithStatic[X, Y: static[int], T] = array[X * Y, T]
var
x: ObjectWithStatic[1, 2, int]
y: AliasWithStatic[2, 3, int]
# case 3
type
Bar[N: static[int], T] = object
bar: array[N, T]
proc `[]`*[N, T](f: Bar[N, T], n: range[0..(N - 1)]): T =
assert high(n) == N-1
result = f.bar[n]
var b: Bar[3, int]
echo b[2]

14
tests/generics/t3977.nim
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@@ -1,14 +0,0 @@
discard """
output: "42\n42"
"""
type
Foo[N: static[int]] = object
proc foo[N](x: Foo[N]) =
let n = N
echo N
echo n
var f1: Foo[42]
f1.foo

11
tests/generics/t4884.nim
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@@ -1,11 +0,0 @@
type
Vec*[N: static[int], T] = object
arr*: array[N, T]
Mat*[N,M: static[int], T] = object
arr*: array[N, Vec[M,T]]
var m : Mat[3,3,float]
var strMat : Mat[m.N, m.M, string]
var lenMat : Mat[m.N, m.M, int]

27
tests/generics/t5570.nim
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@@ -1,27 +0,0 @@
discard """
nimout: "type uint32\ntype uint32"
output: "(weight: 17.0, color: 100)"
"""
import macros
type
BaseFruit[T] = object of RootObj
color: T
Banana[T] = object of BaseFruit[uint32]
weight: T
macro printTypeName(typ: typed): untyped =
echo "type ", getType(typ).repr
proc setColor[K](self: var BaseFruit[K], c: int) =
printTypeName(self.color)
self.color = uint32(c)
var x: Banana[float64]
x.weight = 17
printTypeName(x.color)
x.setColor(100)
echo x

30
tests/generics/t5643.nim
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@@ -1,30 +0,0 @@
type
Matrix*[M, N: static[int], T: SomeFloat] = object
data: ref array[N * M, T]
Matrix64*[M, N: static[int]] = Matrix[M, N, float64]
proc zeros64(M,N: static[int]): Matrix64[M,N] =
new result.data
for i in 0 .. < (M * N):
result.data[i] = 0'f64
proc bar*[M,N: static[int], T](a: Matrix[M,N,T], b: Matrix[M,N,T]) =
discard
let a = zeros64(2,2)
bar(a,a)
# https://github.com/nim-lang/Nim/issues/5643
#
# The test case was failing here, because the compiler failed to
# detect the two matrix instantiations as the same type.
#
# The root cause was that the `T` type variable is a different
# type after the first Matrix type has been matched.
#
# Sigmatch was failing to match the second version of `T`, but
# due to some complex interplay between tyOr, tyTypeDesc and
# tyGenericParam this was allowed to went through. The generic
# instantiation of the second matrix was incomplete and the
# generic cache lookup failed, producing two separate types.

31
tests/generics/t5683.nim
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@@ -1,31 +0,0 @@
discard """
output: "perm: 22 det: 22"
"""
type Matrix[M,N: static[int]] = array[M, array[N, float]]
proc det[M,N](a: Matrix[M,N]): int = N*10 + M
proc perm[M,N](a: Matrix[M,N]): int = M*10 + N
const
a = [ [1.0, 2.0]
, [3.0, 4.0]
]
echo "perm: ", a.perm, " det: ", a.det
# This tests multiple instantiations of a generic
# proc involving static params:
type
Vector64*[N: static[int]] = ref array[N, float64]
Array64[N: static[int]] = array[N, float64]
proc vector*[N: static[int]](xs: Array64[N]): Vector64[N] =
new result
for i in 0 .. < N:
result[i] = xs[i]
let v1 = vector([1.0, 2.0, 3.0, 4.0, 5.0])
let v2 = vector([1.0, 2.0, 3.0, 4.0, 5.0])
let v3 = vector([1.0, 2.0, 3.0, 4.0])

15
tests/generics/t7794.nim
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@@ -1,15 +0,0 @@
discard """
output: '''
10
2.0
'''
"""
type
Data*[T:SomeNumber, U:SomeReal] = ref object
x*: T
value*: U
var d = Data[int, float64](x:10.int, value:2'f64)
echo d.x
echo d.value

11
tests/generics/t8403.nim
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@@ -1,11 +0,0 @@
discard """
output: "6.0"
"""
proc sum*[T](s: seq[T], R: typedesc): R =
var sum: R = 0
for x in s:
sum += R(x)
return sum
echo @[1, 2, 3].sum(float)

10
tests/generics/t8439.nim
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@@ -1,10 +0,0 @@
discard """
output: "1"
"""
type
Cardinal = enum
north, east, south, west
proc foo[cardinal: static[Cardinal]](): int = 1
echo(foo[north]())

31
tests/generics/t8694.nim
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@@ -1,31 +0,0 @@
discard """
output: '''
true
true
true
'''
"""
when true:
# Error: undeclared identifier: '|'
proc bar*[T](t:T): bool =
runnableExamples:
type Foo = int | float
true
echo bar(0)
when true:
# ok
proc bar*(t:int): bool =
runnableExamples:
type Foo = int | float
true
echo bar(0)
when true:
# Error: undeclared identifier: '|'
proc bar*(t:typedesc): bool =
runnableExamples:
type Foo = int | float
true
echo bar(int)

33
tests/generics/t88.nim
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@@ -1,33 +0,0 @@
# Issue 88
type
BaseClass[V] = object of RootObj
b: V
proc new[V](t: typedesc[BaseClass], v: V): BaseClass[V] =
BaseClass[V](b: v)
proc baseMethod[V](v: BaseClass[V]): V = v.b
proc overriddenMethod[V](v: BaseClass[V]): V = v.baseMethod
type
ChildClass[V] = object of BaseClass[V]
c: V
proc new[V](t: typedesc[ChildClass], v1, v2: V): ChildClass[V] =
ChildClass[V](b: v1, c: v2)
proc overriddenMethod[V](v: ChildClass[V]): V = v.c
let c = ChildClass[string].new("Base", "Child")
assert c.baseMethod == "Base"
assert c.overriddenMethod == "Child"
# bug #4528
type GenericBase[T] = ref object of RootObj
type GenericSubclass[T] = ref object of GenericBase[T]
proc foo[T](g: GenericBase[T]) = discard
var bar: GenericSubclass[int]
foo(bar)

33
tests/generics/t9130.nim
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@@ -1,33 +0,0 @@
when true:
# stack overflow
template baz1*(iter: untyped): untyped =
runnableExamples:
import sugar
proc fun(a: proc(x:int): int) = discard
baz1(fun(x:int => x))
discard
proc foo1[A](ts: A) =
baz1(ts)
when true:
# ok
template baz2*(iter: untyped): untyped =
runnableExamples:
import sugar
proc fun(a: proc(x:int): int) = discard
baz2(fun(x:int => x))
discard
proc foo2(ts: int) =
baz2(ts)
when true:
# stack overflow
template baz3*(iter: untyped): untyped =
runnableExamples:
baz3(fun(x:int => x))
discard
proc foo3[A](ts: A) =
baz3(ts)

9
tests/generics/tableref_is_nil.nim
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@@ -1,9 +0,0 @@
discard """
output: "true"
"""
# bug #2221
import tables
var tblo: TableRef[string, int]
echo tblo == nil

11
tests/generics/tarray_with_somenumber.nim
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@@ -1,11 +0,0 @@
discard """
output: '''@[0.9, 0.1]'''
"""
# bug #2304
type TV2*[T:SomeNumber] = array[0..1, T]
proc newV2T*[T](x, y: T=0): TV2[T] = [x, y]
let x = newV2T[float](0.9, 0.1)
echo(@x)

20
tests/generics/tbind_bracket.nim
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@@ -1,20 +0,0 @@
discard """
output: "317"
"""
# bug #2599
import mbind_bracket
# also test that `[]` can be passed now as a first class construct:
template takeBracket(x, a, i: untyped) =
echo x(a, i)
var a: array[10, int]
a[8] = 317
takeBracket(`[]`, a, 8)
let reg = newRegistry[UUIDObject]()
reg.register(UUIDObject())

46
tests/generics/tcan.nim Normal file
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@@ -0,0 +1,46 @@
discard """
output: '''
'''
"""
# Created by Eric Doughty-Papassideris on 2011-02-16.
block talias_generic:
type
TGen[T] = object
TGen2[T] = TGen[T]
block talias_specialised:
type
TGen[T] = object
TSpef = TGen[string]
var s: TSpef
block tinherit:
type
TGen[T] = object of RootObj
x, y: T
TSpef[T] = object of TGen[T]
var s: TSpef[float]
s.x = 0.4
s.y = 0.6
block tspecialise:
type
TGen[T] = object {.inheritable.}
TSpef = object of TGen[string]
block tspecialised_equivalent:
type
TGen[T] = tuple[a: T]
TSpef = tuple[a: string]
var
a: TGen[string]
b: TSpef
a = b

10
tests/generics/tcan_alias_generic.nim
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@@ -1,10 +0,0 @@
##
## can_alias_generic Nim Module
##
## Created by Eric Doughty-Papassideris on 2011-02-16.
type
TGen[T] = object
TGen2[T] = TGen[T]

16
tests/generics/tcan_alias_specialised_generic.nim
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@@ -1,16 +0,0 @@
discard """
disabled: false
"""
##
## can_alias_specialised_generic Nim Module
##
## Created by Eric Doughty-Papassideris on 2011-02-16.
type
TGen[T] = object
TSpef = TGen[string]
var
s: TSpef

16
tests/generics/tcan_inherit_generic.nim
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@@ -1,16 +0,0 @@
##
## can_inherit_generic Nim Module
##
## Created by Eric Doughty-Papassideris on 2011-02-16.
type
TGen[T] = object of RootObj
x, y: T
TSpef[T] = object of TGen[T]
var s: TSpef[float]
s.x = 0.4
s.y = 0.6

10
tests/generics/tcan_specialise_generic.nim
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@@ -1,10 +0,0 @@
##
## can_specialise_generic Nim Module
##
## Created by Eric Doughty-Papassideris on 2011-02-16.
type
TGen[T] = object {.inheritable.}
TSpef = object of TGen[string]

11
tests/generics/tclosed_sym.nim
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@@ -1,11 +0,0 @@
discard """
output: "TEST2"
"""
# bug #2664
import mclosed_sym
proc same(r:R, d:int) = echo "TEST1"
doIt(Data[int](d:123), R())

15
tests/generics/tconfusing_arrow.nim
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@@ -1,15 +0,0 @@
import algorithm, future
type Deck = object
value: int
proc sort(h: var seq[Deck]) =
# works:
h.sort(proc (x, y: Deck): auto =
cmp(x.value, y.value))
# fails:
h.sort((x, y: Deck) => cmp(ord(x.value), ord(y.value)))
var player: seq[Deck] = @[]
player.sort()

20
tests/generics/tdictdestruct.nim
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@@ -1,20 +0,0 @@
type
TDict[TK, TV] = object
k: TK
v: TV
PDict[TK, TV] = ref TDict[TK, TV]
proc fakeNew[T](x: var ref T, destroy: proc (a: ref T) {.nimcall.}) =
discard
proc destroyDict[TK, TV](a: PDict[TK, TV]) =
return
proc newDict[TK, TV](a: TK, b: TV): PDict[TK, TV] =
fakeNew(result, destroyDict[TK, TV])
# Problem: destroyDict is not instantiated when newDict is instantiated!
discard newDict("a", "b")

27
tests/generics/tdont_use_inner_scope.nim
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@@ -1,27 +0,0 @@
# bug #2752
import future, sequtils
proc myFilter[T](it: (iterator(): T), f: (proc(anything: T):bool)): (iterator(): T) =
iterator aNameWhichWillConflict(): T {.closure.}=
for x in it():
if f(x):
yield x
result = aNameWhichWillConflict
iterator testIt():int {.closure.}=
yield -1
yield 2
#let unusedVariable = myFilter(testIt, (x: int) => x > 0)
proc onlyPos(it: (iterator(): int)): (iterator(): int)=
iterator aNameWhichWillConflict(): int {.closure.}=
var filtered = onlyPos(myFilter(it, (x:int) => x > 0))
for x in filtered():
yield x
result = aNameWhichWillConflict
let x = onlyPos(testIt)

10
tests/generics/tdotlookup.nim
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@@ -1,10 +0,0 @@
discard """
output: '''5 5 5
false'''
"""
import mdotlookup
foo(7)
# bug #1444
fn(4)

61
tests/generics/tfakedependenttypes.nim
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@@ -1,61 +0,0 @@
discard """
output: '''
U[3]
U[(f: 3)]
U[[3]]
'''
"""
# https://github.com/nim-lang/Nim/issues/5106
import typetraits
block:
type T = distinct int
proc `+`(a, b: T): T =
T(int(a) + int(b))
type U[F: static[T]] = distinct int
proc `+`[P1, P2: static[T]](a: U[P1], b: U[P2]): U[P1 + P2] =
U[P1 + P2](int(a) + int(b))
var a = U[T(1)](1)
var b = U[T(2)](2)
var c = a + b
echo c.type.name
block:
type T = object
f: int
proc `+`(a, b: T): T =
T(f: a.f + b.f)
type U[F: static[T]] = distinct int
proc `+`[P1, P2: static[T]](a: U[P1], b: U[P2]): U[P1 + P2] =
U[P1 + P2](int(a) + int(b))
var a = U[T(f: 1)](1)
var b = U[T(f: 2)](2)
var c = a + b
echo c.type.name
block:
type T = distinct array[0..0, int]
proc `+`(a, b: T): T =
T([array[0..0, int](a)[0] + array[0..0, int](b)[0]])
type U[F: static[T]] = distinct int
proc `+`[P1, P2: static[T]](a: U[P1], b: U[P2]): U[P1 + P2] =
U[P1 + P2](int(a) + int(b))
var a = U[T([1])](1)
var b = U[T([2])](2)
var c = a + b
echo c.type.name

28
tests/generics/tforward_generic.nim
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@@ -1,28 +0,0 @@
discard """
output: '''b()
720 120.0
720 120.0'''
"""
# bug #3055
proc b(t: int | string)
proc a(t: int) = b(t)
proc b(t: int | string) = echo "b()"
a(1)
# test recursive generics still work:
proc fac[T](x: T): T =
if x == 0: return 1
else: return fac(x-1)*x
echo fac(6), " ", fac(5.0)
# test recursive generic with forwarding:
proc fac2[T](x: T): T
echo fac2(6), " ", fac2(5.0)
proc fac2[T](x: T): T =
if x == 0: return 1
else: return fac2(x-1)*x

118
tests/generics/tgeneric0.nim
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@@ -1,27 +1,111 @@
discard """
output: '''
100 0
'''
"""
import tables
type
TX = Table[string, int]
proc foo(models: seq[Table[string, float]]): seq[float] =
result = @[]
for model in models.items:
result.add model["foobar"]
block tgeneric0:
type
TX = Table[string, int]
# bug #686
type TType[T; A] = array[A, T]
proc foo(models: seq[Table[string, float]]): seq[float] =
result = @[]
for model in models.items:
result.add model["foobar"]
proc foo[T](p: TType[T, range[0..1]]) =
echo "foo"
proc foo[T](p: TType[T, range[0..2]]) =
echo "bar"
# bug #686
type TType[T; A] = array[A, T]
#bug #1366
proc foo[T](p: TType[T, range[0..1]]) =
echo "foo"
proc foo[T](p: TType[T, range[0..2]]) =
echo "bar"
proc reversed(x: auto) =
for i in countdown(x.low, x.high):
echo i
#bug #1366
reversed(@[-19, 7, -4, 6])
proc reversed(x: auto) =
for i in countdown(x.low, x.high):
echo i
reversed(@[-19, 7, -4, 6])
block tgeneric1:
type
TNode[T] = tuple[priority: int, data: T]
TBinHeap[T] = object
heap: seq[TNode[T]]
last: int
PBinHeap[T] = ref TBinHeap[T]
proc newBinHeap[T](heap: var PBinHeap[T], size: int) =
new(heap)
heap.last = 0
newSeq(heap.heap, size)
#newSeq(heap.seq, size)
proc parent(elem: int): int {.inline.} =
return (elem-1) div 2
proc siftUp[T](heap: PBinHeap[T], elem: int) =
var idx = elem
while idx != 0:
var p = parent(idx)
if heap.heap[idx].priority < heap.heap[p].priority:
swap(heap.heap[idx], heap.heap[p])
idx = p
else:
break
proc add[T](heap: PBinHeap[T], priority: int, data: T) =
var node: TNode[T]
node.priority = priority
node.data = data
heap.heap[heap.last] = node
siftUp(heap, heap.last)
inc(heap.last)
proc print[T](heap: PBinHeap[T]) =
for i in countup(0, heap.last):
stdout.write($heap.heap[i].data, " ")
var heap: PBinHeap[int]
newBinHeap(heap, 256)
add(heap, 1, 100)
print(heap)
block tgeneric2:
type
TX = Table[string, int]
proc foo(models: seq[TX]): seq[int] =
result = @[]
for model in models.items:
result.add model["foobar"]
type
Obj = object
field: Table[string, string]
var t: Obj
discard initTable[type(t.field), string]()
block tgeneric4:
type
TIDGen[A: Ordinal] = object
next: A
free: seq[A]
proc newIDGen[A]: TIDGen[A] =
newSeq result.free, 0
var x = newIDGen[int]()

53
tests/generics/tgeneric1.nim
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@@ -1,53 +0,0 @@
discard """
output: "100 0"
"""
# A min-heap.
type
TNode[T] = tuple[priority: int, data: T]
TBinHeap[T] = object
heap: seq[TNode[T]]
last: int
PBinHeap[T] = ref TBinHeap[T]
proc newBinHeap*[T](heap: var PBinHeap[T], size: int) =
new(heap)
heap.last = 0
newSeq(heap.heap, size)
#newSeq(heap.seq, size)
proc parent(elem: int): int {.inline.} =
return (elem-1) div 2
proc siftUp[T](heap: PBinHeap[T], elem: int) =
var idx = elem
while idx != 0:
var p = parent(idx)
if heap.heap[idx].priority < heap.heap[p].priority:
swap(heap.heap[idx], heap.heap[p])
idx = p
else:
break
proc add*[T](heap: PBinHeap[T], priority: int, data: T) =
var node: TNode[T]
node.priority = priority
node.data = data
heap.heap[heap.last] = node
siftUp(heap, heap.last)
inc(heap.last)
proc print*[T](heap: PBinHeap[T]) =
for i in countup(0, heap.last):
stdout.write($heap.heap[i].data, " ")
var
heap: PBinHeap[int]
newBinHeap(heap, 256)
add(heap, 1, 100)
print(heap)

15
tests/generics/tgeneric2.nim
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@@ -1,15 +0,0 @@
import tables
type
TX = Table[string, int]
proc foo(models: seq[TX]): seq[int] =
result = @[]
for model in models.items:
result.add model["foobar"]
type
Obj = object
field: Table[string, string]
var t: Obj
discard initTable[type(t.field), string]()

10
tests/generics/tgeneric4.nim
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@@ -1,10 +0,0 @@
type
TIDGen*[A: Ordinal] = object
next: A
free: seq[A]
proc newIDGen*[A]: TIDGen[A] =
newSeq result.free, 0
var x = newIDGen[int]()

37
tests/generics/tgeneric_closure.nim
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@@ -1,37 +0,0 @@
# Test to ensure TEventHandler is '.closure'
# bug #1187
type
TEventArgs* = object
skip*: bool
TEventHandler[T] = proc (e: var TEventArgs, data: T) {.closure.}
TEvent*[T] = object
#handlers: seq[TEventHandler[T]] # Does not work
handlers: seq[proc (e: var TEventArgs, d: T) {.closure.}] # works
TData = object
x: int
TSomething = object
s: TEvent[TData]
proc init*[T](e: var TEvent[T]) =
e.handlers.newSeq(0)
#proc add*[T](e: var TEvent[T], h: proc (e: var TEventArgs, data: T) {.closure.}) =
# this line works
proc add*[T](e: var TEvent[T], h: TEventHandler[T]) =
# this line does not work
e.handlers.add(h)
proc main () =
var something: TSomething
something.s.init()
var fromOutside = 4711
something.s.add() do (e: var TEventArgs, data: TData):
var x = data.x
x = fromOutside
main()

19
tests/generics/tgeneric_inheritance.nim
View File

@@ -1,19 +0,0 @@
discard """
output: "0.0"
"""
# bug #1919
type
Base[M] = object of RootObj
a : M
Sub1[M] = object of Base[M]
b : int
Sub2[M] = object of Sub1[M]
c : int
var x: Sub2[float]
echo x.a

39
tests/generics/tgenericconst.nim
View File

@@ -1,39 +0,0 @@
discard """
output: '''
@[1, 2]
@[3, 4]
1
'''
"""
# https://github.com/nim-lang/Nim/issues/5756
type
Vec*[N : static[int]] = object
x: int
arr*: array[N, int32]
Mat*[M,N: static[int]] = object
x: int
arr*: array[M, Vec[N]]
proc vec2*(x,y:int32) : Vec[2] =
result.arr = [x,y]
result.x = 10
proc mat2*(a,b: Vec[2]): Mat[2,2] =
result.arr = [a,b]
result.x = 20
const M = mat2(vec2(1, 2), vec2(3, 4))
let m1 = M
echo @(m1.arr[0].arr)
echo @(m1.arr[1].arr)
proc foo =
let m2 = M
echo m1.arr[0].arr[0]
foo()

29
tests/generics/tgenericdefaults.nim
View File

@@ -1,29 +0,0 @@
type
TFoo[T, U, R = int] = object
x: T
y: U
z: R
TBar[T] = TFoo[T, array[4, T], T]
var x1: TFoo[int, float]
static:
assert type(x1.x) is int
assert type(x1.y) is float
assert type(x1.z) is int
var x2: TFoo[string, R = float, U = seq[int]]
static:
assert type(x2.x) is string
assert type(x2.y) is seq[int]
assert type(x2.z) is float
var x3: TBar[float]
static:
assert type(x3.x) is float
assert type(x3.y) is array[4, float]
assert type(x3.z) is float

50
tests/generics/tgenericmatcher.nim
View File

@@ -1,22 +1,40 @@
discard """
disabled: false
output: '''
'''
"""
type
TMatcherKind = enum
mkTerminal, mkSequence, mkAlternation, mkRepeat
TMatcher[T] = object
case kind: TMatcherKind
of mkTerminal:
value: T
of mkSequence, mkAlternation:
matchers: seq[TMatcher[T]]
of mkRepeat:
matcher: PMatcher[T]
min, max: int
PMatcher[T] = ref TMatcher[T]
var
m: PMatcher[int]
block tmatcher1:
type
TMatcherKind = enum
mkTerminal, mkSequence, mkAlternation, mkRepeat
TMatcher[T] = object
case kind: TMatcherKind
of mkTerminal:
value: T
of mkSequence, mkAlternation:
matchers: seq[TMatcher[T]]
of mkRepeat:
matcher: PMatcher[T]
min, max: int
PMatcher[T] = ref TMatcher[T]
var m: PMatcher[int]
block tmatcher2:
type
TMatcherKind = enum
mkTerminal, mkSequence, mkAlternation, mkRepeat
TMatcher[T] = object
case kind: TMatcherKind
of mkTerminal:
value: T
of mkSequence, mkAlternation:
matchers: seq[TMatcher[T]]
of mkRepeat:
matcher: ref TMatcher[T]
min, max: int
var m: ref TMatcher[int]

18
tests/generics/tgenericmatcher2.nim
View File

@@ -1,18 +0,0 @@
type
TMatcherKind = enum
mkTerminal, mkSequence, mkAlternation, mkRepeat
TMatcher[T] = object
case kind: TMatcherKind
of mkTerminal:
value: T
of mkSequence, mkAlternation:
matchers: seq[TMatcher[T]]
of mkRepeat:
matcher: ref TMatcher[T]
min, max: int
var
m: ref TMatcher[int]

12
tests/generics/tgenericprop.nim
View File

@@ -1,12 +0,0 @@
type
TProperty[T] = object of RootObj
getProc: proc(property: TProperty[T]): T {.nimcall.}
setProc: proc(property: TProperty[T], value: T) {.nimcall.}
value: T
proc newProperty[T](value: RootObj): TProperty[T] =
result.getProc = proc (property: TProperty[T]) =
return property.value

38
tests/generics/tgenericrefs.nim
View File

@@ -1,38 +0,0 @@
type
PA[T] = ref TA[T]
TA[T] = object
field: T
var a: PA[string]
new(a)
a.field = "some string"
proc someOther[T](len: string): seq[T] = discard
proc someOther[T](len: int): seq[T] = echo "we"
proc foo[T](x: T) =
var s = someOther[T](34)
#newSeq[T](34)
foo 23
when false:
# Compiles unless you use var a: PA[string]
type
PA = ref TA
TA[T] = object
# Cannot instantiate:
type
TA[T] = object
a: PA[T]
PA[T] = ref TA[T]
type
PA[T] = ref TA[T]
TA[T] = object

36
tests/generics/tgenerics_and_inheritance.nim
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@@ -1,36 +0,0 @@
# bug #7854
type
Stream* = ref StreamObj
StreamObj* = object of RootObj
InhStream* = ref InhStreamObj
InhStreamObj* = object of Stream
f: string
proc newInhStream*(f: string): InhStream =
new(result)
result.f = f
var val: int
let str = newInhStream("input_file.json")
block:
# works:
proc load[T](data: var T, s: Stream) =
discard
load(val, str)
block:
# works
proc load[T](s: Stream, data: T) =
discard
load(str, val)
block:
# broken
proc load[T](s: Stream, data: var T) =
discard
load(str, val)

14
tests/generics/tgenericsdefaultvalues.nim
View File

@@ -1,14 +0,0 @@
discard """
output: "12"
"""
# https://github.com/nim-lang/Nim/issues/5864
proc defaultStatic(s: openarray, N: static[int] = 1): int = N
proc defaultGeneric[T](a: T = 2): int = a
let a = [1, 2, 3, 4].defaultStatic()
let b = defaultGeneric()
echo a, b

42
tests/generics/tgenericshardcases.nim
View File

@@ -1,42 +0,0 @@
discard """
file: "tgenericshardcases.nim"
output: "2\n5\n126\n3"
"""
import typetraits
proc typeNameLen(x: typedesc): int {.compileTime.} =
result = x.name.len
macro selectType(a, b: typedesc): typedesc =
result = a
type
Foo[T] = object
data1: array[T.high, int]
data2: array[typeNameLen(T), float]
data3: array[0..T.typeNameLen, selectType(float, int)]
MyEnum = enum A, B, C, D
var f1: Foo[MyEnum]
var f2: Foo[int8]
echo high(f1.data1) # (D = 3) - 1 == 2
echo high(f1.data2) # (MyEnum.len = 6) - 1 == 5
echo high(f2.data1) # 127 - 1 == 126
echo high(f2.data2) # int8.len - 1 == 3
static:
assert high(f1.data1) == ord(C)
assert high(f1.data2) == 5 # length of MyEnum minus one, because we used T.high
assert high(f2.data1) == 126
assert high(f2.data2) == 3
assert high(f1.data3) == 6 # length of MyEnum
assert high(f2.data3) == 4 # length of int8
assert f2.data3[0] is float

21
tests/generics/tgenerictmpl.nim
View File

@@ -1,21 +0,0 @@
discard """
output: '''0
123'''
"""
# bug #3498
template defaultOf[T](t: T): untyped = (var d: T; d)
echo defaultOf(1) #<- excpected 0
# assignment using template
template tassign[T](x: var seq[T]) =
x = @[1, 2, 3]
var y: seq[int]
tassign(y) #<- x is expected = @[1, 2, 3]
tassign(y)
echo y[0], y[1], y[2]

45
tests/generics/timports.nim Normal file
View File

@@ -0,0 +1,45 @@
discard """
output: '''
317
TEST2
5 5 5
false
'''
"""
import mbind_bracket, mclosed_sym, mdotlookup, mmodule_same_as_proc
block tbind_bracket:
# bug #2599
# also test that `[]` can be passed now as a first class construct:
template takeBracket(x, a, i: untyped) =
echo x(a, i)
var a: array[10, int]
a[8] = 317
takeBracket(`[]`, a, 8)
let reg = newRegistry[UUIDObject]()
reg.register(UUIDObject())
block tclosed_sym:
# bug #2664
proc same(r:R, d:int) = echo "TEST1"
doIt(Data[int](d:123), R())
block tdotlookup:
foo(7)
# bug #1444
fn(4)
block tmodule_same_as_proc:
# bug #1965
proc test[T](t: T) =
mmodule_same_as_proc"a"
test(0)

21
tests/generics/tinferredgenericprocs.nim
View File

@@ -1,21 +0,0 @@
discard """
output: '''123
1
2
3'''
"""
import sequtils
# https://github.com/Araq/Nim/issues/797
proc foo[T](s:T):string = $s
type IntStringProc = proc(x: int): string
var f1 = IntStringProc(foo)
var f2: proc(x: int): string = foo
var f3: IntStringProc = foo
echo f1(1), f2(2), f3(3)
for x in map([1,2,3], foo): echo x

765
tests/generics/tissues.nim Normal file
View File

@@ -0,0 +1,765 @@
discard """
output: '''
4
3
(weight: 17.0, color: 100)
perm: 22 det: 22
TMatrix[3, 3, system.int]
3
@[0.9, 0.1]
U[3]
U[(f: 3)]
U[[3]]
b()
@[1, 2]
@[3, 4]
1
concrete 88
123
1
2
3
!!Hi!!
G:0,1:0.1
G:0,1:0.1
H:1:0.1
'''
"""
import macros, sequtils, sets, sugar, tables, typetraits
block t88:
type
BaseClass[V] = object of RootObj
b: V
proc new[V](t: typedesc[BaseClass], v: V): BaseClass[V] =
BaseClass[V](b: v)
proc baseMethod[V](v: BaseClass[V]): V = v.b
proc overriddenMethod[V](v: BaseClass[V]): V = v.baseMethod
type
ChildClass[V] = object of BaseClass[V]
c: V
proc new[V](t: typedesc[ChildClass], v1, v2: V): ChildClass[V] =
ChildClass[V](b: v1, c: v2)
proc overriddenMethod[V](v: ChildClass[V]): V = v.c
let c = ChildClass[string].new("Base", "Child")
assert c.baseMethod == "Base"
assert c.overriddenMethod == "Child"
block t4528:
type GenericBase[T] = ref object of RootObj
type GenericSubclass[T] = ref object of GenericBase[T]
proc foo[T](g: GenericBase[T]) = discard
var bar: GenericSubclass[int]
foo(bar)
block t1050_5597:
type ArrayType[T] = distinct T
proc arrayItem(a: ArrayType): auto =
static: echo(name(type(a).T))
result = (type(a).T)(4)
var arr: ArrayType[int]
echo arrayItem(arr)
# bug #5597
template fail() = "what"
proc g[T](x: var T) =
x.fail = 3
type
Obj = object
fail: int
var y: Obj
g y
block t1789:
type
Foo[N: static[int]] = object
proc bindStaticN[N](foo: Foo[N]) =
var ar0: array[3, int]
var ar1: array[N, int]
var ar2: array[1..N, int]
var ar3: array[0..(N+10), float]
echo N
var f: Foo[3]
f.bindStaticN
# case 2
type
ObjectWithStatic[X, Y: static[int], T] = object
bar: array[X * Y, T] # this one works
AliasWithStatic[X, Y: static[int], T] = array[X * Y, T]
var
x: ObjectWithStatic[1, 2, int]
y: AliasWithStatic[2, 3, int]
# case 3
type
Bar[N: static[int], T] = object
bar: array[N, T]
proc `[]`[N, T](f: Bar[N, T], n: range[0..(N - 1)]): T =
assert high(n) == N-1
result = f.bar[n]
var b: Bar[3, int]
doAssert b[2] == 0
block t3977:
type Foo[N: static[int]] = object
proc foo[N](x: Foo[N]) =
let n = N
doAssert N == n
var f1: Foo[42]
f1.foo
block t5570:
type
BaseFruit[T] = object of RootObj
color: T
Banana[T] = object of BaseFruit[uint32]
weight: T
macro printTypeName(typ: typed): untyped =
echo "type ", getType(typ).repr
proc setColor[K](self: var BaseFruit[K], c: int) =
printTypeName(self.color)
self.color = uint32(c)
var x: Banana[float64]
x.weight = 17
printTypeName(x.color)
x.setColor(100)
echo x
block t5643:
type
Matrix[M, N: static[int], T: SomeFloat] = object
data: ref array[N * M, T]
Matrix64[M, N: static[int]] = Matrix[M, N, float64]
proc zeros64(M,N: static[int]): Matrix64[M,N] =
new result.data
for i in 0 ..< (M * N):
result.data[i] = 0'f64
proc bar[M,N: static[int], T](a: Matrix[M,N,T], b: Matrix[M,N,T]) =
discard
let a = zeros64(2,2)
bar(a,a)
# https://github.com/nim-lang/Nim/issues/5643
#
# The test case was failing here, because the compiler failed to
# detect the two matrix instantiations as the same type.
#
# The root cause was that the `T` type variable is a different
# type after the first Matrix type has been matched.
#
# Sigmatch was failing to match the second version of `T`, but
# due to some complex interplay between tyOr, tyTypeDesc and
# tyGenericParam this was allowed to went through. The generic
# instantiation of the second matrix was incomplete and the
# generic cache lookup failed, producing two separate types.
block t5683:
type Matrix[M,N: static[int]] = array[M, array[N, float]]
proc det[M,N](a: Matrix[M,N]): int = N*10 + M
proc perm[M,N](a: Matrix[M,N]): int = M*10 + N
const
a = [ [1.0, 2.0]
, [3.0, 4.0]
]
echo "perm: ", a.perm, " det: ", a.det
# This tests multiple instantiations of a generic
# proc involving static params:
type
Vector64[N: static[int]] = ref array[N, float64]
Array64[N: static[int]] = array[N, float64]
proc vector[N: static[int]](xs: Array64[N]): Vector64[N] =
new result
for i in 0 ..< N:
result[i] = xs[i]
let v1 = vector([1.0, 2.0, 3.0, 4.0, 5.0])
let v2 = vector([1.0, 2.0, 3.0, 4.0, 5.0])
let v3 = vector([1.0, 2.0, 3.0, 4.0])
block t7794:
type
Data[T:SomeNumber, U:SomeFloat] = ref object
x: T
value*: U
var d = Data[int, float64](x:10.int, value:2'f64)
doAssert d.x == 10
doAssert d.value == 2.0
block t8403:
proc sum[T](s: seq[T], R: typedesc): R =
var sum: R = 0
for x in s:
sum += R(x)
return sum
doAssert @[1, 2, 3].sum(float) == 6.0
block t8439:
type
Cardinal = enum
north, east, south, west
proc foo[cardinal: static[Cardinal]](): int = 1
doAssert foo[north]() == 1
block t8694:
when true:
# Error: undeclared identifier: '|'
proc bar[T](t:T): bool =
runnableExamples:
type Foo = int | float
true
doAssert bar(0)
when true:
# ok
proc bar(t:int): bool =
runnableExamples:
type Foo = int | float
true
doAssert bar(0)
when true:
# Error: undeclared identifier: '|'
proc bar(t:typedesc): bool =
runnableExamples:
type Foo = int | float
true
doAssert bar(int)
block t9130:
when true:
# stack overflow
template baz1(iter: untyped): untyped =
runnableExamples:
import sugar
proc fun(a: proc(x:int): int) = discard
baz1(fun(x:int => x))
discard
proc foo1[A](ts: A) =
baz1(ts)
when true:
# ok
template baz2(iter: untyped): untyped =
runnableExamples:
import sugar
proc fun(a: proc(x:int): int) = discard
baz2(fun(x:int => x))
discard
proc foo2(ts: int) =
baz2(ts)
when true:
# stack overflow
template baz3(iter: untyped): untyped =
runnableExamples:
baz3(fun(x:int => x))
discard
proc foo3[A](ts: A) =
baz3(ts)
block t1056:
type
TMatrix[N,M: static[int], T] = object
data: array[0..N*M-1, T]
TMat2[T] = TMatrix[2,2,T]
proc echoMatrix(a: TMatrix) =
echo a.type.name
echo TMatrix.N
proc echoMat2(a: TMat2) =
echo TMat2.M
var m = TMatrix[3,3,int](data: [1,2,3,4,5,6,7,8,9])
echoMatrix m
block t4884:
type
Vec[N: static[int], T] = object
arr*: array[N, T]
Mat[N,M: static[int], T] = object
arr: array[N, Vec[M,T]]
var m : Mat[3,3,float]
var strMat : Mat[m.N, m.M, string]
var lenMat : Mat[m.N, m.M, int]
block t2221:
var tblo: TableRef[string, int]
doAssert tblo == nil
block t2304:
type TV2[T:SomeNumber] = array[0..1, T]
proc newV2T[T](x, y: T=0): TV2[T] = [x, y]
let x = newV2T[float](0.9, 0.1)
echo(@x)
block t2752:
proc myFilter[T](it: (iterator(): T), f: (proc(anything: T):bool)): (iterator(): T) =
iterator aNameWhichWillConflict(): T {.closure.}=
for x in it():
if f(x):
yield x
result = aNameWhichWillConflict
iterator testIt():int {.closure.}=
yield -1
yield 2
#let unusedVariable = myFilter(testIt, (x: int) => x > 0)
proc onlyPos(it: (iterator(): int)): (iterator(): int)=
iterator aNameWhichWillConflict(): int {.closure.}=
var filtered = onlyPos(myFilter(it, (x:int) => x > 0))
for x in filtered():
yield x
result = aNameWhichWillConflict
let x = onlyPos(testIt)
block t5106:
block:
type T = distinct int
proc `+`(a, b: T): T =
T(int(a) + int(b))
type U[F: static[T]] = distinct int
proc `+`[P1, P2: static[T]](a: U[P1], b: U[P2]): U[P1 + P2] =
U[P1 + P2](int(a) + int(b))
var a = U[T(1)](1)
var b = U[T(2)](2)
var c = a + b
echo c.type.name
block:
type T = object
f: int
proc `+`(a, b: T): T =
T(f: a.f + b.f)
type U[F: static[T]] = distinct int
proc `+`[P1, P2: static[T]](a: U[P1], b: U[P2]): U[P1 + P2] =
U[P1 + P2](int(a) + int(b))
var a = U[T(f: 1)](1)
var b = U[T(f: 2)](2)
var c = a + b
echo c.type.name
block:
type T = distinct array[0..0, int]
proc `+`(a, b: T): T =
T([array[0..0, int](a)[0] + array[0..0, int](b)[0]])
type U[F: static[T]] = distinct int
proc `+`[P1, P2: static[T]](a: U[P1], b: U[P2]): U[P1 + P2] =
U[P1 + P2](int(a) + int(b))
var a = U[T([1])](1)
var b = U[T([2])](2)
var c = a + b
echo c.type.name
block t3055:
proc b(t: int | string)
proc a(t: int) = b(t)
proc b(t: int | string) = echo "b()"
a(1)
# test recursive generics still work:
proc fac[T](x: T): T =
if x == 0: return 1
else: return fac(x-1)*x
doAssert fac(6) == 720
doAssert fac(5.0) == 120.0
# test recursive generic with forwarding:
proc fac2[T](x: T): T
doAssert fac2(6) == 720
doAssert fac2(5.0) == 120.0
proc fac2[T](x: T): T =
if x == 0: return 1
else: return fac2(x-1)*x
block t1187:
type
TEventArgs = object
skip: bool
TEventHandler[T] = proc (e: var TEventArgs, data: T) {.closure.}
TEvent[T] = object
#handlers: seq[TEventHandler[T]] # Does not work
handlers: seq[proc (e: var TEventArgs, d: T) {.closure.}] # works
TData = object
x: int
TSomething = object
s: TEvent[TData]
proc init[T](e: var TEvent[T]) =
e.handlers.newSeq(0)
#proc add*[T](e: var TEvent[T], h: proc (e: var TEventArgs, data: T) {.closure.}) =
# this line works
proc add[T](e: var TEvent[T], h: TEventHandler[T]) =
# this line does not work
e.handlers.add(h)
proc main () =
var something: TSomething
something.s.init()
var fromOutside = 4711
something.s.add() do (e: var TEventArgs, data: TData):
var x = data.x
x = fromOutside
main()
block t1919:
type
Base[M] = object of RootObj
a : M
Sub1[M] = object of Base[M]
b : int
Sub2[M] = object of Sub1[M]
c : int
var x: Sub2[float]
doAssert x.a == 0.0
block t5756:
type
Vec[N : static[int]] = object
x: int
arr: array[N, int32]
Mat[M,N: static[int]] = object
x: int
arr: array[M, Vec[N]]
proc vec2(x,y:int32) : Vec[2] =
result.arr = [x,y]
result.x = 10
proc mat2(a,b: Vec[2]): Mat[2,2] =
result.arr = [a,b]
result.x = 20
const M = mat2(vec2(1, 2), vec2(3, 4))
let m1 = M
echo @(m1.arr[0].arr)
echo @(m1.arr[1].arr)
proc foo =
let m2 = M
echo m1.arr[0].arr[0]
foo()
block t7854:
type
Stream = ref StreamObj
StreamObj = object of RootObj
InhStream = ref InhStreamObj
InhStreamObj = object of Stream
f: string
proc newInhStream(f: string): InhStream =
new(result)
result.f = f
var val: int
let str = newInhStream("input_file.json")
block:
# works:
proc load[T](data: var T, s: Stream) =
discard
load(val, str)
block:
# works
proc load[T](s: Stream, data: T) =
discard
load(str, val)
block:
# broken
proc load[T](s: Stream, data: var T) =
discard
load(str, val)
block t5864:
proc defaultStatic(s: openarray, N: static[int] = 1): int = N
proc defaultGeneric[T](a: T = 2): int = a
let a = [1, 2, 3, 4].defaultStatic()
let b = defaultGeneric()
doAssert a == 1
doAssert b == 2
block t3498:
template defaultOf[T](t: T): untyped = (var d: T; d)
doAssert defaultOf(1) == 0
# assignment using template
template tassign[T](x: var seq[T]) =
x = @[1, 2, 3]
var y: seq[int]
tassign(y) #<- x is expected = @[1, 2, 3]
tassign(y)
doAssert y[0] == 1
doAssert y[1] == 2
doAssert y[2] == 3
block t3499:
proc foo[T](x: proc(): T) =
echo "generic ", x()
proc foo(x: proc(): int) =
echo "concrete ", x()
# note the following 'proc' is not .closure!
foo(proc (): auto {.nimcall.} = 88)
# bug #3499 last snippet fixed
# bug 705 last snippet fixed
block t797:
proc foo[T](s:T):string = $s
type IntStringProc = proc(x: int): string
var f1 = IntStringProc(foo)
var f2: proc(x: int): string = foo
var f3: IntStringProc = foo
echo f1(1), f2(2), f3(3)
for x in map([1,2,3], foo): echo x
block t4658:
var x = 123
proc twice[T](f: T -> T): T -> T = (x: T) => f(f(x))
proc quote(s: string): string = "!" & s & "!"
echo twice(quote)("Hi")
block t4589:
type SimpleTable[TKey, TVal] = TableRef[TKey, TVal]
template newSimpleTable(TKey, TVal: typedesc): SimpleTable[TKey, TVal] = newTable[TKey, TVal]()
var fontCache : SimpleTable[string, SimpleTable[int32, int]]
fontCache = newSimpleTable(string, SimpleTable[int32, int])
block t4600:
template foo(x: untyped): untyped = echo 1
template foo(x,y: untyped): untyped = echo 2
proc bar1[T](x: T) = foo(x)
proc bar2(x: float) = foo(x,x)
proc bar3[T](x: T) = foo(x,x)
block t4672:
type
EnumContainer[T: enum] = object
v: T
SomeEnum {.pure.} = enum
A,B,C
proc value[T: enum](this: EnumContainer[T]): T =
this.v
var enumContainer: EnumContainer[SomeEnum]
discard enumContainer.value()
block t4863:
type
G[i,j: static[int]] = object
v:float
H[j: static[int]] = G[0,j]
proc p[i,j: static[int]](x:G[i,j]) = echo "G:", i, ",", j, ":", x.v
proc q[j: static[int]](x:H[j]) = echo "H:", j, ":", x.v
var
g0 = G[0,1](v: 0.1)
h0:H[1] = g0
p(g0)
p(h0)
q(h0)
block t1684:
type
BaseType {.inheritable pure.} = object
idx: int
DerivedType {.final pure.} = object of BaseType
proc index[Toohoo: BaseType](h: Toohoo): int {.inline.} = h.idx
proc newDerived(idx: int): DerivedType {.inline.} = DerivedType(idx: idx)
let d = newDerived(2)
assert(d.index == 2)
block t5632:
type Option[T] = object
proc point[A](v: A, t: typedesc[Option[A]]): Option[A] =
discard
discard point(1, Option)
block t7247:
type n8 = range[0'i8..127'i8]
var tab = initSet[n8]()
doAssert tab.contains(8) == false
block t3717:
type
Foo[T] = object
a: T
Foo1[T] = Foo[T] | int
proc foo[T](s: Foo1[Foo[T]]): T =
5
var f: Foo[Foo[int]]
discard foo(f)

13
tests/generics/tlamba_in_generic.nim
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@@ -1,13 +0,0 @@
discard """
output: '''!!Hi!!'''
"""
# bug #4658
import future
var x = 123
proc twice[T](f: T -> T): T -> T = (x: T) => f(f(x))
proc quote(s: string): string = "!" & s & "!"
echo twice(quote)("Hi")

13
tests/generics/tmap_auto.nim
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@@ -1,13 +0,0 @@
import future, sequtils
let x = map(@[1, 2, 3], x => x+10)
assert x == @[11, 12, 13]
let y = map(@[(1,"a"), (2,"b"), (3,"c")], x => $x[0] & x[1])
assert y == @["1a", "2b", "3c"]
proc eatsTwoArgProc[T,S,U](a: T, b: S, f: proc(t: T, s: S): U): U =
f(a,b)
let z = eatsTwoArgProc(1, "a", (t,s) => $t & s)
assert z == "1a"

9
tests/generics/tmodule_same_as_proc.nim
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@@ -1,9 +0,0 @@
# bug #1965
import mmodule_same_as_proc
proc test[T](t: T) =
mmodule_same_as_proc"a"
test(0)

12
tests/generics/tobjecttyperel3.nim
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@@ -1,12 +0,0 @@
discard """
output: '''OK'''
"""
#bug #5632
type
Option*[T] = object
proc point*[A](v: A, t: typedesc[Option[A]]): Option[A] =
discard
discard point(1, Option)
echo "OK"

17
tests/generics/tproctypecache_falsepositive.nim
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@@ -1,17 +0,0 @@
import asyncdispatch
type
Callback = proc() {.closure, gcsafe.}
GameState = ref object
playerChangeHandlers: seq[Callback]
#proc dummy() =
# var x = newSeq[proc() {.cdecl, gcsafe.}]()
proc newGameState(): GameState =
result = GameState(
playerChangeHandlers: newSeq[Callback]() # this fails
)
#dummy()

20
tests/generics/tptrinheritance.nim
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@@ -1,20 +0,0 @@
type NSPasteboardItem* = ptr object
type NSPasteboard* = ptr object
type NSArrayAbstract = ptr object {.inheritable.}
type NSMutableArrayAbstract = ptr object of NSArrayAbstract
type NSArray*[T] = ptr object of NSArrayAbstract
type NSMutableArray*[T] = ptr object of NSArray[T]
proc newMutableArrayAbstract*(): NSMutableArrayAbstract = discard
template newMutableArray*(T: typedesc): NSMutableArray[T] =
cast[NSMutableArray[T]](newMutableArrayAbstract())
proc writeObjects*(p: NSPasteboard, o: NSArray[NSPasteboardItem]) = discard
let a = newMutableArray NSPasteboardItem
var x: NSMutableArray[NSPasteboardItem]
var y: NSArray[NSPasteboardItem] = x
writeObjects(nil, a)

9
tests/generics/tsigtypeop.nim
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@@ -1,9 +0,0 @@
type
Vec3[T] = array[3, T]
proc foo(x: Vec3, y: Vec3.T, z: x.T): x.type.T =
return 10
var y: Vec3[int] = [1, 2, 3]
var z: int = foo(y, 3, 4)

21
tests/generics/tspecial_numeric_inference.nim
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@@ -1,21 +0,0 @@
discard """
output: '''false'''
"""
when false:
import typetraits
proc `@`[T: SomeInteger](x, y: T): T = x
echo(type(5'i64 @ 6'i32))
echo(type(5'i32 @ 6'i64))
import sets
# bug #7247
type
n8 = range[0'i8..127'i8]
var tab = initSet[n8]()
echo tab.contains(8)

14
tests/generics/tspecialised_is_equivalent.nim
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@@ -1,14 +0,0 @@
##
## specialised_is_equivalent Nim Module
##
## Created by Eric Doughty-Papassideris on 2011-02-16.
type
TGen[T] = tuple[a: T]
TSpef = tuple[a: string]
var
a: TGen[string]
b: TSpef
a = b

17
tests/generics/tspecialized_procvar.nim
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@@ -1,17 +0,0 @@
discard """
output: '''concrete 88'''
"""
# Another regression triggered by changed closure computations:
proc foo[T](x: proc(): T) =
echo "generic ", x()
proc foo(x: proc(): int) =
echo "concrete ", x()
# note the following 'proc' is not .closure!
foo(proc (): auto {.nimcall.} = 88)
# bug #3499 last snippet fixed
# bug 705 last snippet fixed

20
tests/generics/tstatictalias.nim
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@@ -1,20 +0,0 @@
discard """
output: '''G:0,1:0.1
G:0,1:0.1
H:1:0.1'''
"""
type
G[i,j:static[int]] = object
v:float
H[j:static[int]] = G[0,j]
proc p[i,j:static[int]](x:G[i,j]) = echo "G:",i,",",j,":",x.v
proc q[j:static[int]](x:H[j]) = echo "H:",j,":",x.v
var
g0 = G[0,1](v: 0.1)
h0:H[1] = g0
p(g0)
p(h0)
q(h0)
# bug #4863

13
tests/generics/tsubtypeconstraint.nim
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@@ -1,13 +0,0 @@
# bug #1684
type
BaseType {.inheritable pure.} = object
idx: int
DerivedType* {.final pure.} = object of BaseType
proc index*[Toohoo: BaseType](h: Toohoo): int {.inline.} = h.idx
proc newDerived(idx: int): DerivedType {.inline.} = DerivedType(idx: idx)
let d = newDerived(2)
assert(d.index == 2)

7
tests/generics/ttable_alias.nim
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@@ -1,7 +0,0 @@
# bug #4589
import tables
type SimpleTable*[TKey, TVal] = TableRef[TKey, TVal]
template newSimpleTable*(TKey, TVal: typedesc): SimpleTable[TKey, TVal] = newTable[TKey, TVal]()
var fontCache : SimpleTable[string, SimpleTable[int32, int]]
fontCache = newSimpleTable(string, SimpleTable[int32, int])

8
tests/generics/ttempl_in_generic.nim
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@@ -1,8 +0,0 @@
# bug #4600
template foo(x: untyped): untyped = echo 1
template foo(x,y: untyped): untyped = echo 2
proc bar1[T](x: T) = foo(x)
proc bar2(x: float) = foo(x,x)
proc bar3[T](x: T) = foo(x,x)

12
tests/generics/ttypeclass_to_typeclass.nim
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@@ -1,12 +0,0 @@
# bug #4672
type
EnumContainer[T: enum] = object
v: T
SomeEnum {.pure.} = enum
A,B,C
proc value[T: enum](this: EnumContainer[T]): T =
this.v
var enumContainer: EnumContainer[SomeEnum]
discard enumContainer.value()

26
tests/generics/tvarargs_vs_generic.nim
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@@ -1,26 +0,0 @@
discard """
output: "direct\ngeneric\ngeneric"
"""
proc withDirectType(args: string) =
echo "direct"
proc withDirectType[T](arg: T) =
echo "generic"
proc withOpenArray(args: openarray[string]) =
echo "openarray"
proc withOpenArray[T](arg: T) =
echo "generic"
proc withVarargs(args: varargs[string]) =
echo "varargs"
proc withVarargs[T](arg: T) =
echo "generic"
withDirectType "string"
withOpenArray "string"
withVarargs "string"

245
tests/generics/tvarious.nim Normal file
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@@ -0,0 +1,245 @@
discard """
output: '''
we
direct
generic
generic
'''
"""
import algorithm, sugar, sequtils, typetraits, asyncdispatch
block tconfusing_arrow:
type Deck = object
value: int
proc sort(h: var seq[Deck]) =
# works:
h.sort(proc (x, y: Deck): auto =
cmp(x.value, y.value))
# fails:
h.sort((x, y: Deck) => cmp(ord(x.value), ord(y.value)))
var player: seq[Deck] = @[]
player.sort()
block tdictdestruct:
type
TDict[TK, TV] = object
k: TK
v: TV
PDict[TK, TV] = ref TDict[TK, TV]
proc fakeNew[T](x: var ref T, destroy: proc (a: ref T) {.nimcall.}) =
discard
proc destroyDict[TK, TV](a: PDict[TK, TV]) =
return
proc newDict[TK, TV](a: TK, b: TV): PDict[TK, TV] =
fakeNew(result, destroyDict[TK, TV])
# Problem: destroyDict is not instantiated when newDict is instantiated!
discard newDict("a", "b")
block tgenericdefaults:
type
TFoo[T, U, R = int] = object
x: T
y: U
z: R
TBar[T] = TFoo[T, array[4, T], T]
var x1: TFoo[int, float]
static:
assert type(x1.x) is int
assert type(x1.y) is float
assert type(x1.z) is int
var x2: TFoo[string, R = float, U = seq[int]]
static:
assert type(x2.x) is string
assert type(x2.y) is seq[int]
assert type(x2.z) is float
var x3: TBar[float]
static:
assert type(x3.x) is float
assert type(x3.y) is array[4, float]
assert type(x3.z) is float
block tprop:
type
TProperty[T] = object of RootObj
getProc: proc(property: TProperty[T]): T {.nimcall.}
setProc: proc(property: TProperty[T], value: T) {.nimcall.}
value: T
proc newProperty[T](value: RootObj): TProperty[T] =
result.getProc = proc (property: TProperty[T]) =
return property.value
block trefs:
type
PA[T] = ref TA[T]
TA[T] = object
field: T
var a: PA[string]
new(a)
a.field = "some string"
proc someOther[T](len: string): seq[T] = discard
proc someOther[T](len: int): seq[T] = echo "we"
proc foo[T](x: T) =
var s = someOther[T](34)
#newSeq[T](34)
foo 23
when false:
# Compiles unless you use var a: PA[string]
type
PA = ref TA
TA[T] = object
# Cannot instantiate:
type
TA[T] = object
a: PA[T]
PA[T] = ref TA[T]
type
PA[T] = ref TA[T]
TA[T] = object
block tsharedcases:
proc typeNameLen(x: typedesc): int {.compileTime.} =
result = x.name.len
macro selectType(a, b: typedesc): typedesc =
result = a
type
Foo[T] = object
data1: array[T.high, int]
data2: array[typeNameLen(T), float]
data3: array[0..T.typeNameLen, selectType(float, int)]
MyEnum = enum A, B, C, D
var f1: Foo[MyEnum]
var f2: Foo[int8]
doAssert high(f1.data1) == 2 # (D = 3) - 1 == 2
doAssert high(f1.data2) == 5 # (MyEnum.len = 6) - 1 == 5
doAssert high(f2.data1) == 126 # 127 - 1 == 126
doAssert high(f2.data2) == 3 # int8.len - 1 == 3
static:
assert high(f1.data1) == ord(C)
assert high(f1.data2) == 5 # length of MyEnum minus one, because we used T.high
assert high(f2.data1) == 126
assert high(f2.data2) == 3
assert high(f1.data3) == 6 # length of MyEnum
assert high(f2.data3) == 4 # length of int8
assert f2.data3[0] is float
block tmap_auto:
let x = map(@[1, 2, 3], x => x+10)
assert x == @[11, 12, 13]
let y = map(@[(1,"a"), (2,"b"), (3,"c")], x => $x[0] & x[1])
assert y == @["1a", "2b", "3c"]
proc eatsTwoArgProc[T,S,U](a: T, b: S, f: proc(t: T, s: S): U): U =
f(a,b)
let z = eatsTwoArgProc(1, "a", (t,s) => $t & s)
assert z == "1a"
block tproctypecache_falsepositive:
type
Callback = proc() {.closure, gcsafe.}
GameState = ref object
playerChangeHandlers: seq[Callback]
proc newGameState(): GameState =
result = GameState(
playerChangeHandlers: newSeq[Callback]() # this fails
)
block tptrinheritance:
type NSPasteboardItem = ptr object
type NSPasteboard = ptr object
type NSArrayAbstract = ptr object {.inheritable.}
type NSMutableArrayAbstract = ptr object of NSArrayAbstract
type NSArray[T] = ptr object of NSArrayAbstract
type NSMutableArray[T] = ptr object of NSArray[T]
proc newMutableArrayAbstract(): NSMutableArrayAbstract = discard
template newMutableArray(T: typedesc): NSMutableArray[T] =
cast[NSMutableArray[T]](newMutableArrayAbstract())
proc writeObjects(p: NSPasteboard, o: NSArray[NSPasteboardItem]) = discard
let a = newMutableArray NSPasteboardItem
var x: NSMutableArray[NSPasteboardItem]
var y: NSArray[NSPasteboardItem] = x
writeObjects(nil, a)
block tsigtypeop:
type Vec3[T] = array[3, T]
proc foo(x: Vec3, y: Vec3.T, z: x.T): x.type.T =
return 10
var y: Vec3[int] = [1, 2, 3]
var z: int = foo(y, 3, 4)
block tvarargs_vs_generics:
proc withDirectType(args: string) =
echo "direct"
proc withDirectType[T](arg: T) =
echo "generic"
proc withOpenArray(args: openarray[string]) =
echo "openarray"
proc withOpenArray[T](arg: T) =
echo "generic"
proc withVarargs(args: varargs[string]) =
echo "varargs"
proc withVarargs[T](arg: T) =
echo "generic"
withDirectType "string"
withOpenArray "string"
withVarargs "string"