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path: root/nimsuggest/tests/tsug_template.nim

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Diffstat (limited to 'nimsuggest/tests/tsug_template.nim')

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1 files changed, 1 insertions, 1 deletions

a id='n106' href='#n106'>106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298

discard """
output: '''
@[]
5
0
a
hi
Hello, World!
(e: 42)
hey
foo
foo
foo
false
true
'''
"""


import macros, json


block t2057:
  proc mpf_get_d(x: int): float = float(x)
  proc mpf_cmp_d(a: int; b: float): int = 0

  template toFloatHelper(result, tooSmall, tooLarge: untyped) =
    result = mpf_get_d(a)
    if result == 0.0 and mpf_cmp_d(a,0.0) != 0:
      tooSmall
    if result == Inf:
      tooLarge

  proc toFloat(a: int): float =
    toFloatHelper(result) do:
      raise newException(ValueError, "number too small")
    do:
      raise newException(ValueError, "number too large")

  doAssert toFloat(8) == 8.0



import sequtils, os
block t2629:
  template glob_rst(basedir: string = ""): untyped =
    if baseDir.len == 0:
      to_seq(walk_files("*.rst"))
    else:
      to_seq(walk_files(basedir/"*.rst"))

  let rst_files = concat(glob_rst(), glob_rst("docs"))

  when true: echo rst_files


block t5417:
  macro genBody: untyped =
    let sbx = genSym(nskLabel, "test")
    when true:
      result = quote do:
        block `sbx`:
          break `sbx`
    else:
      template foo(s1, s2) =
        block s1:
          break s2
      result = getAst foo(sbx, sbx)

  proc test() =
    genBody()



block t909:
  template baz() =
    proc bar() =
      var x = 5
      iterator foo(): int {.closure.} =
        echo x
      var y = foo
      discard y()

  macro test(): untyped =
    result = getAst(baz())

  test()
  bar()



block t993:
  type PNode = ref object of RootObj

  template litNode(name, ty)  =
    type name = ref object of PNode
      val: ty
  litNode PIntNode, int

  template withKey(j: JsonNode; key: string; varname,
                    body: untyped): typed =
    if j.hasKey(key):
      let varname{.inject.}= j[key]
      block:
        body

  var j = parsejson("{\"zzz\":1}")
  withkey(j, "foo", x):
    echo(x)




block t1337:
  template someIt(a, pred): untyped =
    var it {.inject.} = 0
    pred

  proc aProc(n: auto) =
    n.someIt(echo(it))

  aProc(89)



import mlt
block t4564:
  type Bar = ref object of RootObj
  proc foo(a: Bar): int = 0
  var a: Bar
  let b = a.foo() > 0



block t8052:
  type
    UintImpl[N: static[int], T: SomeUnsignedInt] = object
      raw_data: array[N, T]

  template genLoHi(TypeImpl: untyped): untyped =
    template loImpl[N: static[int], T: SomeUnsignedInt](dst: TypeImpl[N div 2, T], src: TypeImpl[N, T]) =
      let halfSize = N div 2
      for i in 0 ..< halfSize:
        dst.raw_data[i] = src.raw_data[i]

    proc lo[N: static[int], T: SomeUnsignedInt](x: TypeImpl[N,T]): TypeImpl[N div 2, T] {.inline.}=
      loImpl(result, x)

  genLoHi(UintImpl)

  var a: UintImpl[4, uint32]

  a.raw_data = [1'u32, 2'u32, 3'u32, 4'u32]
  doAssert a.lo.raw_data.len == 2
  doAssert a.lo.raw_data[0] == 1
  doAssert a.lo.raw_data[1] == 2



block t2585:
  type
    RenderPass = object
       state: ref int
    RenderData = object
        fb: int
        walls: seq[RenderPass]
    Mat2 = int
    Vector2[T] = T
    Pixels=int

  template use(fb: int, st: untyped): untyped =
      echo "a ", $fb
      st
      echo "a ", $fb

  proc render(rdat: var RenderData; passes: var openArray[RenderPass]; proj: Mat2;
              indexType = 1) =
      for i in 0 ..< len(passes):
          echo "blah ", repr(passes[i])

  proc render2(rdat: var RenderData; screenSz: Vector2[Pixels]; proj: Mat2) =
      use rdat.fb:
          render(rdat, rdat.walls, proj, 1)



block t4292:
  template foo(s: string): string = s
  proc variadicProc(v: varargs[string, foo]) = echo v[0]
  variadicProc("a")



block t2670:
  template testTemplate(b: bool): typed =
    when b:
        var a = "hi"
    else:
        var a = 5
    echo a
  testTemplate(true)



block t4097:
  var i {.compileTime.} = 2

  template defineId(t: typedesc) =
    const id {.genSym.} = i
    static: inc(i)
    proc idFor(T: typedesc[t]): int {.inline, raises: [].} = id

  defineId(int8)
  defineId(int16)

  doAssert idFor(int8) == 2
  doAssert idFor(int16) == 3



block t5235:
  template outer(body: untyped) =
    template test(val: string) =
      const SomeConst: string = val
      echo SomeConst
    body

  outer:
    test("Hello, World!")


# bug #11941
type X = object
  e: int

proc works(T: type X, v: auto): T = T(e: v)
template fails(T: type X, v: auto): T = T(e: v)

var
  w = X.works(42)
  x = X.fails(42)

echo x

import mtempl5


proc foo(): auto =
  trap "foo":
    echo "hey"

discard foo()


# bug #4722
type
  IteratorF*[In] = iterator() : In {.closure.}

template foof(In: untyped) : untyped =
  proc ggg*(arg: IteratorF[In]) =
    for i in arg():
      echo "foo"


iterator hello() : int {.closure.} =
  for i in 1 .. 3:
    yield i

foof(int)
ggg(hello)


# bug #2586
var z = 10'u8
echo z < 9 # Works
echo z > 9 # Error: type mismatch


# bug #5993
template foo(p: proc) =
  var bla = 5
  p(bla)

foo() do(t: var int):
  discard
  t = 5

proc bar(t: var int) =
  t = 5

foo(bar)

block: # bug #12595
  template test() =
    let i = 42
    discard {i: ""}

  test()


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