mirror of
https://github.com/nim-lang/Nim.git
synced 2025-12-29 01:14:41 +00:00
05c6db6500
* underscores for routine parameters fixes #13443, fixes #13804, refs #21121 * add changelog + more tests * support generics and ensure inferred lambdas work
110 lines
2.1 KiB
Nim
110 lines
2.1 KiB
Nim
discard """
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targets: "c cpp js"
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"""
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import std/[assertions, sequtils]
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proc test() =
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block:
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proc ok(_, _, a: int): int =
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doAssert not compiles(_)
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a
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doassert ok(4, 2, 5) == 5
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block:
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proc ok(_: int, _: int, a: int): int = a
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doAssert ok(4, 2, 5) == 5
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block:
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proc ok(_: int, _: float, a: int): int = a
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doAssert ok(1, 2.0, 5) == 5
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block:
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proc ok(_: int, _: float, _: string, a: int): int = a
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doAssert ok(1, 2.6, "5", 5) == 5
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block:
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proc ok[T](_, _, a: T): T =
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doAssert not compiles(_)
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a
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doAssert ok(4, 2, 5) == 5
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doAssert ok("a", "b", "c") == "c"
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doAssert not compiles(ok(1, 2, "a"))
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block:
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let ok = proc (_, _, a: int): int =
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doAssert not compiles(_)
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a
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doAssert ok(4, 2, 5) == 5
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block:
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proc foo(lam: proc (_, _, a: int): int): int =
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lam(4, 2, 5)
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doAssert foo(proc (_, _, a: auto): auto =
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doAssert not compiles(_)
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a) == 5
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block:
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iterator fn(_, _: int, c: int): int = yield c
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doAssert toSeq(fn(1,2,3)) == @[3]
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block:
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template ok(_, _, a: int): int = a
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doAssert ok(4, 2, 5) == 5
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block:
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doAssert not (compiles do:
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template bad(_: int): int = _
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discard bad(3))
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block:
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template ok(_: int, _: int, a: int): int = a
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doAssert ok(4, 2, 5) == 5
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block:
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template ok(_: int, _: float, a: int): int = a
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doAssert ok(1, 2.0, 5) == 5
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block:
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template ok(_: int, _: float, _: string, a: int): int = a
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doAssert ok(1, 2.6, "5", 5) == 5
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block:
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template main2() =
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iterator fn(_, _: int, c: int): int = yield c
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main2()
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block:
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template main =
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proc foo(_: int) =
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let a = _
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doAssert not compiles(main())
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proc closureTest() =
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var x = 0
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block:
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proc foo(_, _: int) = x += 5
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foo(1, 2)
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doAssert x == 5
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block:
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proc foo(_: int, _: float) = x += 5
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foo(1, 2)
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doAssert x == 10
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block:
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proc foo(_: int, _: float, _: string) = x += 5
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foo(1, 2, "5")
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doAssert x == 15
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static: test()
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test()
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when not defined(js):
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static: closureTest()
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closureTest()
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