├── .gitignore
├── Readme.md
├── UNLICENSE
├── pipe.nim
├── pipe.nimble
└── tests
    ├── nim.cfg
    └── test.nim


/.gitignore:
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1 | nimcache/
2 | tests/test
3 | 


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/Readme.md:
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 1 | # Pipe #
 2 | 
 3 | [![license]](License.md)
 4 | 
 5 | A pipe operator for nim, as seen in functional languages.
 6 | 
 7 | ## Origins ##
 8 | 
 9 | I was looking for a good old `|>` to use in nim.
10 | I found [this](https://github.com/jaym/nim-pipeline).
11 | It sucked. It wasn't published. It used "example" in its description.
12 | 
13 | So I decided to write my own, with blackjack and hookers.
14 | 
15 | ## Examples ##
16 | 
17 | Please take a look in tests/test.nim for examples, but here's a tl;dr:
18 | 
19 | ```nim
20 | 1 |> `+`(2) |> foo
21 | # is equivalent to
22 | foo(1+2)
23 | ```
24 | 
25 | [license]: https://img.shields.io/github/license/5pacetoast/pipe.svg
26 | 


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/UNLICENSE:
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 1 | This is free and unencumbered software released into the public domain.
 2 | 
 3 | Anyone is free to copy, modify, publish, use, compile, sell, or
 4 | distribute this software, either in source code form or as a compiled
 5 | binary, for any purpose, commercial or non-commercial, and by any
 6 | means.
 7 | 
 8 | In jurisdictions that recognize copyright laws, the author or authors
 9 | of this software dedicate any and all copyright interest in the
10 | software to the public domain. We make this dedication for the benefit
11 | of the public at large and to the detriment of our heirs and
12 | successors. We intend this dedication to be an overt act of
13 | relinquishment in perpetuity of all present and future rights to this
14 | software under copyright law.
15 | 
16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 | IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 | OTHER DEALINGS IN THE SOFTWARE.
23 | 
24 | For more information, please refer to <https://unlicense.org>
25 | 


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/pipe.nim:
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 1 | import macros
 2 | 
 3 | macro `|>`*(lhs, rhs: untyped): untyped =
 4 |   case rhs.kind:
 5 |   of nnkIdent: # single-parameter functions
 6 |     result = newCall(rhs, lhs)
 7 |   else:
 8 |     result = rhs
 9 |     result.insert(1, lhs)
10 | 


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/pipe.nimble:
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 1 | # Package
 2 | 
 3 | version       = "0.1.1"
 4 | author        = "Chloe Kudryavtsev"
 5 | description   = "Pipe operator for nim."
 6 | license       = "Unlicense"
 7 | 
 8 | # Base
 9 | 
10 | skipDirs = @["tests"]
11 | 
12 | task clean, "Clean various files":
13 |     rmDir "tests/nimcache"
14 |     rmDir "nimcache"
15 |     rmfile "pipe"
16 |     rmfile "tests/test"
17 | 
18 | # Dependencies
19 | 
20 | requires "nim >= 0.17.0"
21 | 
22 | # Tests
23 | 
24 | task test, "Runs the test suite":
25 |   exec "nim c -r tests/test"
26 | 


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/tests/nim.cfg:
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1 | path=".."
2 | 


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/tests/test.nim:
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 1 | import pipe
 2 | 
 3 | import unittest
 4 | 
 5 | suite "Pipe operator sanity":
 6 |   test "Simple calls are equivalent":
 7 |     proc add2(x: int): int = x + 2
 8 |     check(add2(2) == 2 |> add2)
 9 | 
10 |   test "Infix operators work":
11 |     check(1 + 2 == 1 |> `+` 2)
12 | 
13 |   test "Chaining works":
14 |     check(1 + 2 + 3 == 1 |> `+`(2) |> `+`(3))
15 | 
16 |   test "Many parameters work":
17 |     proc sum3(x, y, z: int): int = x + y + z
18 |     check(sum3(1,2,3) == 1 |> sum3(2,3))
19 | 
20 |   test "Varargs work":
21 |     proc sum(stuff: varargs[int]): int =
22 |       result = 0
23 |       for s in stuff:
24 |         result += s
25 | 
26 |     check(sum(1,2,3) == 1 |> sum(2, 3))
27 | 
28 |   test "Variables can't be called":
29 |     const x = 5
30 |     when compiles(5 |> x): fail()
31 | 


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