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block:
var s: seq[string] = (discard; @[])
var x: set[char] =
if true:
try:
case 1
of 1:
if false:
{'4'}
else:
block:
s.add "a"
{}
else: {'3'}
except: {'2'}
else: {'1'}
doAssert x is set[char]
doAssert x == {}
doAssert s == @["a"]
x = {'a', 'b'}
doAssert x == {'a', 'b'}
x = (s.add "b"; {})
doAssert x == {}
doAssert s == @["a", "b"]
let x2: set[byte] = {1}
doAssert x2 == {1u8}
block:
let x3: array[0..2, byte] = [1, 2, 3]
#let x4: openarray[byte] = [1, 2, 3]
#let x5: openarray[byte] = @[1, 2, 3]
let x6: seq[byte] = @[1, 2, 3]
let x7: seq[seq[float32]] = @[@[1, 2, 3], @[4.3, 5, 6]]
type ABC = enum a, b, c
let x8: array[ABC, byte] = [1, 2, 3]
doAssert x8[a] == 1
doAssert x8[a] + x8[b] == x8[c]
const x9: array[-2..2, float] = [0, 1, 2, 3, 4]
let x10: array[ABC, byte] = block:
{.gcsafe.}:
[a: 1, b: 2, c: 3]
proc `@`(x: float): float = x + 1
doAssert @1 == 2
let x11: seq[byte] = system.`@`([1, 2, 3])
block:
type Foo = object
x: BiggestInt
var foo: Foo
foo.x = case true
of true: ord(1)
else: 0
foo.x = if true: ord(1) else: 0
block:
type Foo = object
x: (float, seq[(byte, seq[byte])])
let foo = Foo(x: (1, @{2: @[], 3: @[4, 5]}))
doAssert foo.x == (1.0, @{2u8: @[], 3u8: @[4u8, 5]})
block:
type Foo = object
x: tuple[a: float, b: seq[(byte, seq[byte])]]
let foo = Foo(x: (a: 1, b: @{2: @[3, 4], 5: @[]}))
doAssert foo.x == (1.0, @{2u8: @[3u8, 4], 5u8: @[]})
block:
proc foo(): seq[float] = @[1]
let fooLamb = proc(): seq[float] = @[1]
doAssert foo() == fooLamb()
block:
type Foo[T] = float32
let x: seq[Foo[int32]] = @[1]
block:
type Foo = ref object
type Bar[T] = ptr object
let x1: seq[Foo] = @[nil]
let x2: seq[Bar[int]] = @[nil]
let x3: seq[cstring] = @[nil]
block:
let x: seq[cstring] = @["abc", nil, "def"]
doAssert x.len == 3
doAssert x[0] == cstring"abc"
doAssert x[1].isNil
doAssert x[2] == "def".cstring
block:
type Foo = object
x: tuple[a: float, b: seq[(byte, seq[cstring])]]
let foo = Foo(x: (a: 1, b: @{2: @[nil, "abc"]}))
doAssert foo.x == (1.0, @{2u8: @[cstring nil, cstring "abc"]})
block:
type Foo = object
x: tuple[a: float, b: seq[(byte, seq[ptr int])]]
let foo = Foo(x: (a: 1, b: @{2: @[nil, nil]}))
doAssert foo.x == (1.0, @{2u8: @[(ptr int)(nil), nil]})
when false: # unsupported
block: # type conversion
let x = seq[(cstring, float32)](@{"abc": 1.0, "def": 2.0})
doAssert x[0] == (cstring"abc", 1.0'f32)
doAssert x[1] == (cstring"def", 2.0'f32)
block: # enum
type Foo {.pure.} = enum a
type Bar {.pure.} = enum a, b, c
var s: seq[Bar] = @[a, b, c]
block: # overload selection
proc foo(x, y: int): int = x + y + 1
proc foo(x: int): int = x - 1
var s: seq[proc (x, y: int): int] = @[nil, foo, foo]
var s2: seq[int]
for a in s:
if not a.isNil: s2.add(a(1, 2))
doAssert s2 == @[4, 4]
block: # with generics?
proc foo(x, y: int): int = x + y + 1
proc foo(x: int): int = x - 1
proc bar[T](x, y: T): T = x - y
var s: seq[proc (x, y: int): int] = @[nil, foo, foo, bar]
var s2: seq[int]
for a in s:
if not a.isNil: s2.add(a(1, 2))
doAssert s2 == @[4, 4, -1]
proc foo(x, y: float): float = x + y + 1.0
var s3: seq[proc (x, y: float): float] = @[nil, foo, foo, bar]
var s4: seq[float]
for a in s3:
if not a.isNil: s4.add(a(1, 2))
doAssert s4 == @[4.0, 4, -1]
block: # range types
block:
let x: set[range[1u8..5u8]] = {1, 3}
doAssert x == {range[1u8..5u8](1), 3}
doAssert $x == "{1, 3}"
block:
let x: seq[set[range[1u8..5u8]]] = @[{1, 3}]
doAssert x == @[{range[1u8..5u8](1), 3}]
doAssert $x[0] == "{1, 3}"
block:
let x: seq[range[1u8..5u8]] = @[1, 3]
doAssert x == @[range[1u8..5u8](1), 3]
doAssert $x == "@[1, 3]"
block: # already worked before, make sure it still works
let x: set[range['a'..'e']] = {'a', 'c'}
doAssert x == {range['a'..'e']('a'), 'c'}
doAssert $x == "{'a', 'c'}"
block: # extended
let x: seq[set[range['a'..'e']]] = @[{'a', 'c'}]
doAssert x[0] == {range['a'..'e']('a'), 'c'}
doAssert $x == "@[{'a', 'c'}]"
block:
type Foo = object
x: (range[1u8..5u8], seq[(range[1f32..5f32], seq[range['a'..'e']])])
let foo = Foo(x: (1, @{2: @[], 3: @['c', 'd']}))
doAssert foo.x == (range[1u8..5u8](1u8), @{range[1f32..5f32](2f32): @[], 3f32: @[range['a'..'e']('c'), 'd']})
block:
type Foo = object
x: (range[1u8..5u8], seq[(range[1f32..5f32], seq[set[range['a'..'e']]])])
let foo = Foo(x: (1, @{2: @[], 3: @[{'c', 'd'}]}))
doAssert foo.x == (range[1u8..5u8](1u8), @{range[1f32..5f32](2f32): @[], 3f32: @[{range['a'..'e']('c'), 'd'}]})
block: # templates
template foo: untyped = (1, 2, "abc")
let x: (float, byte, cstring) = foo()
doAssert x[0] == float(1)
doAssert x[1] == byte(2)
doAssert x[2] == cstring("abc")
let (a, b, c) = x
doAssert a == float(1)
doAssert b == byte(2)
doAssert c == cstring("abc")
proc foo(): set[char] = # bug #11259
discard "a"
{}
discard foo()
block: # bug #11085
const ok1: set[char] = {}
var ok1b: set[char] = {}
const ok2: set[char] = block:
{}
const ok3: set[char] = block:
var x: set[char] = {}
x
var ok3b: set[char] = block:
var x: set[char] = {}
x
var bad: set[char] = block:
{}
# bug #6213
block:
block:
type MyEnum = enum a, b
type MyTuple = tuple[x: set[MyEnum]]
var myVar: seq[MyTuple] = @[ (x: {}) ]
doAssert myVar.len == 1
block:
type
Foo = tuple
f: seq[string]
s: string
proc e(): seq[Foo] =
return @[
(@[], "asd")
]
doAssert e()[0].f == @[]
block: # bug #11777
type S = set[0..5]
var s: S = {1, 2}
doAssert 1 in s
block: # bug #20807
var s: seq[string]
template fail =
s = @[]
template test(body: untyped) =
body
proc test(a: string) = discard
test: fail()
doAssert not (compiles do:
let x: seq[int] = `@`[string]([]))
block: # bug #21377
proc b[T](v: T): seq[int] =
let x = 0
@[]
doAssert b(0) == @[]
block: # bug #21377
proc b[T](v: T): seq[T] =
let x = 0
@[]
doAssert b(0) == @[]
block: # bug #21377
proc b[T](v: T): set[bool] =
let x = 0
{}
doAssert b(0) == {}
block: # bug #21377
proc b[T](v: T): array[0, int] =
let x = 0
[]
doAssert b(0) == []
block: # bug #21377
proc b[T](v: T): array[0, (string, string)] =
let x = 0
{:}
doAssert b(0) == {:}
block: # bug #22180
type A = object
proc j() = discard
let x =
if false:
(ref A)(nil)
else:
if false:
quit 1
else:
if true:
j()
nil # compiles with (ref A)(nil) here
else:
(ref A)(nil)
doAssert x.isNil
let y =
case true
of false:
(ref A)(nil)
else:
case true
of false:
quit 1
else:
case true
of true:
j()
nil # compiles with (ref A)(nil) here
else:
(ref A)(nil)
doAssert y.isNil
block: # issue #24164, related regression
proc foo(x: proc ()) = discard
template bar(x: untyped = nil) =
foo(x)
bar()
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