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discard """
output: '''
true012innertrue
m1
tup1
another number: 123
yay
helloa 1 b 2 x @[3, 4, 5] y 6 z 7
yay
12
ref ref T ptr S
dynamic: let
dynamic: var
static: const
static: literal
static: constant folding
static: static string
foo1
'''
"""
import strutils, sequtils
block overl2:
# Test new overloading resolution rules
proc toverl2(x: int): string = return $x
proc toverl2(x: bool): string = return $x
iterator toverl2(x: int): int =
var res = 0
while res < x:
yield res
inc(res)
var
pp: proc (x: bool): string {.nimcall.} = toverl2
stdout.write(pp(true))
for x in toverl2(3):
stdout.write(toverl2(x))
block:
proc toverl2(x: int): string = return "inner"
stdout.write(toverl2(5))
stdout.write(true)
stdout.write("\n")
#OUT true012innertrue
block overl3:
# Tests more specific generic match:
proc m[T](x: T) = echo "m2"
proc m[T](x: var ref T) = echo "m1"
proc tup[S, T](x: tuple[a: S, b: ref T]) = echo "tup1"
proc tup[S, T](x: tuple[a: S, b: T]) = echo "tup2"
var
obj: ref int
tu: tuple[a: int, b: ref bool]
m(obj)
tup(tu)
block toverprc:
# Test overloading of procs when used as function pointers
proc parseInt(x: float): int {.noSideEffect.} = discard
proc parseInt(x: bool): int {.noSideEffect.} = discard
proc parseInt(x: float32): int {.noSideEffect.} = discard
proc parseInt(x: int8): int {.noSideEffect.} = discard
proc parseInt(x: File): int {.noSideEffect.} = discard
proc parseInt(x: char): int {.noSideEffect.} = discard
proc parseInt(x: int16): int {.noSideEffect.} = discard
proc parseInt[T](x: T): int = echo x; 34
type
TParseInt = proc (x: string): int {.noSideEffect.}
var
q = TParseInt(parseInt)
p: TParseInt = parseInt
proc takeParseInt(x: proc (y: string): int {.noSideEffect.}): int =
result = x("123")
if false:
echo "Give a list of numbers (separated by spaces): "
var x = stdin.readline.split.map(parseInt).max
echo x, " is the maximum!"
echo "another number: ", takeParseInt(parseInt)
type
TFoo[a,b] = object
lorem: a
ipsum: b
proc bar[a,b](f: TFoo[a,b], x: a) = echo(x, " ", f.lorem, f.ipsum)
proc bar[a,b](f: TFoo[a,b], x: b) = echo(x, " ", f.lorem, f.ipsum)
discard parseInt[string]("yay")
block toverwr:
# Test the overloading resolution in connection with a qualifier
proc write(t: File, s: string) =
discard # a nop
system.write(stdout, "hello")
#OUT hello
block tparams_after_varargs:
proc test(a, b: int, x: varargs[int]; y, z: int) =
echo "a ", a, " b ", b, " x ", @x, " y ", y, " z ", z
test 1, 2, 3, 4, 5, 6, 7
# XXX maybe this should also work with ``varargs[untyped]``
template takesBlockA(a, b: untyped; x: varargs[typed]; blck: untyped): untyped =
blck
echo a, b
takesBlockA 1, 2, "some", 0.90, "random stuff":
echo "yay"
block tprefer_specialized_generic:
proc foo[T](x: T) =
echo "only T"
proc foo[T](x: ref T) =
echo "ref T"
proc foo[T, S](x: ref ref T; y: ptr S) =
echo "ref ref T ptr S"
proc foo[T, S](x: ref T; y: ptr S) =
echo "ref T ptr S"
proc foo[T](x: ref T; default = 0) =
echo "ref T; default"
var x: ref ref int
var y: ptr ptr int
foo(x, y)
block tstaticoverload:
proc foo(s: string) =
echo "dynamic: ", s
proc foo(s: static[string]) =
echo "static: ", s
let l = "let"
var v = "var"
const c = "const"
type staticString = static[string]
foo(l)
foo(v)
foo(c)
foo("literal")
foo("constant" & " " & "folding")
foo(staticString("static string"))
# bug #6076
type A[T] = object
proc regr(a: A[void]) = echo "foo1"
proc regr[T](a: A[T]) = doAssert(false)
regr(A[void]())
type Foo[T] = object
proc regr[T](p: Foo[T]): seq[T] =
discard
proc regr(p: Foo[void]): seq[int] =
discard
discard regr(Foo[int]())
discard regr(Foo[void]())
|