Nim/tests/vm/tmisc_vm.nim

discard """
  targets: "c js"
  output: '''
[127, 127, 0, 255][127, 127, 0, 255]
(data: 1)
(2, 1)
(2, 1)
(2, 1)
(f0: 5)
'''

  nimout: '''caught Exception
main:begin
main:end
@[{0}]
(width: 0, height: 0, path: "")
@[(width: 0, height: 0, path: ""), (width: 0, height: 0, path: "")]
Done!
foo4
foo4
foo4
(a: 0, b: 0)
(a: 0, b: 0)
(a: 0, b: 0)
z1 m: (lo: 12)
z2 a: (lo: 3)
x1 a: (lo: 3)
x2 a: (lo: 6)
x3 a: (lo: 0)
z3 a: (lo: 3)
x1 a: (lo: 3)
x2 a: (lo: 6)
x3 a: (lo: 0)
(2, 1)
(2, 1)
(2, 1)
(f0: 5)
'''
"""
import std/sets

#bug #1009
type
  TAggRgba8* = array[4, byte]

template R*(self: TAggRgba8): byte = self[0]
template G*(self: TAggRgba8): byte = self[1]
template B*(self: TAggRgba8): byte = self[2]
template A*(self: TAggRgba8): byte = self[3]

template `R=`*(self: TAggRgba8, val: byte) =
  self[0] = val
template `G=`*(self: TAggRgba8, val: byte) =
  self[1] = val
template `B=`*(self: TAggRgba8, val: byte) =
  self[2] = val
template `A=`*(self: TAggRgba8, val: byte) =
  self[3] = val

proc ABGR*(val: int | int64): TAggRgba8 =
  var V = val
  result.R = byte(V and 0xFF)
  V = V shr 8
  result.G = byte(V and 0xFF)
  V = V shr 8
  result.B = byte(V and 0xFF)
  result.A = byte((V shr 8) and 0xFF)

const
  c1 = ABGR(0xFF007F7F)
echo ABGR(0xFF007F7F).repr, c1.repr


# bug 8740

static:
  try:
    raise newException(ValueError, "foo")
  except Exception:
    echo "caught Exception"
  except Defect:
    echo "caught Defect"
  except ValueError:
    echo "caught ValueError"

# bug #10538

block:
  proc fun1(): seq[int] =
    try:
      try:
        result.add(1)
        return
      except:
        result.add(-1)
      finally:
        result.add(2)
    finally:
      result.add(3)
    result.add(4)

  let x1 = fun1()
  const x2 = fun1()
  doAssert(x1 == x2)

# bug #11610
proc simpleTryFinally()=
  try:
    echo "main:begin"
  finally:
    echo "main:end"

static: simpleTryFinally()

# bug #10981

proc main =
  for i in 0..<15:
    var someSets = @[initHashSet[int]()]
    someSets[^1].incl(0) # <-- segfaults
    if i == 0:
      echo someSets

static:
  main()

# bug #7261
const file = """
sprites.png
size: 1024,1024
format: RGBA8888
filter: Linear,Linear
repeat: none
char/slide_down
  rotate: false
  xy: 730, 810
  size: 204, 116
  orig: 204, 116
  offset: 0, 0
  index: -1
"""

type
  AtlasPage = object
    width, height: int
    path: string

  CtsStream = object
    data: string
    pos: int

proc atEnd(stream: CtsStream): bool =
  stream.pos >= stream.data.len

proc readChar(stream: var CtsStream): char =
  if stream.atEnd:
    result = '\0'
  else:
    result = stream.data[stream.pos]
    inc stream.pos

proc readLine(s: var CtsStream, line: var string): bool =
  # This is pretty much copied from the standard library:
  line.setLen(0)
  while true:
    var c = readChar(s)
    if c == '\c':
      c = readChar(s)
      break
    elif c == '\L': break
    elif c == '\0':
      if line.len > 0: break
      else: return false
    line.add(c)
  result = true

proc peekLine(s: var CtsStream, line: var string): bool =
  let oldPos = s.pos
  result = s.readLine(line)
  s.pos = oldPos

proc initCtsStream(data: string): CtsStream =
  CtsStream(
    pos: 0,
    data: data
  )

# ********************
# Interesting stuff happens here:
# ********************

proc parseAtlas(stream: var CtsStream) =
  var pages = @[AtlasPage(), AtlasPage()]
  var line = ""

  block:
    let page = addr pages[^1]
    discard stream.peekLine(line)
    discard stream.peekLine(line)
    echo page[]
  echo pages

static:
  var stream = initCtsStream(file)
  parseAtlas(stream)
  echo "Done!"


# bug #12244

type
  Apple = object
    data: int

func what(x: var Apple) =
  x = Apple(data: 1)

func oh_no(): Apple =
  what(result)

const
  vmCrash = oh_no()

debugEcho vmCrash


# bug #12310

proc someTransform(s: var array[8, uint64]) =
  var s1 = 5982491417506315008'u64
  s[1] += s1

static:
  var state: array[8, uint64]
  state[1] = 7105036623409894663'u64
  someTransform(state)

  doAssert state[1] == 13087528040916209671'u64

import macros
# bug #12670

macro fooImpl(arg: untyped) =
  result = quote do:
    `arg`

proc foo(): string {.compileTime.} =
  fooImpl:
    result = "foo"
    result.addInt 4

static:
  echo foo()
  echo foo()
  echo foo()

# bug #12488
type
  MyObject = object
    a,b: int
  MyObjectRef = ref MyObject

static:
  let x1 = new(MyObject)
  echo x1[]
  let x2 = new(MyObjectRef)
  echo x2[]
  let x3 = new(ref MyObject) # cannot generate VM code for ref MyObject
  echo x3[]

# bug #19464
type
  Wrapper = object
    inner: int

proc assign(r: var Wrapper, a: Wrapper) =
  r = a

proc myEcho(a: Wrapper) =
  var tmp = a
  assign(tmp, Wrapper(inner: 0)) # this shouldn't modify `a`
  doAssert a.inner == 1

static:
  var result: Wrapper
  assign(result, Wrapper(inner: 1))
  myEcho(result)

when true:
  # bug #15974
  type Foo = object
    f0: int

  proc fn(a: var Foo) =
    var s: Foo
    a = Foo(f0: 2)
    s = a
    doAssert s.f0 == 2
    a = Foo(f0: 3)
    doAssert s.f0 == 2

  proc test2()=
    var a = Foo(f0: 1)
    fn(a)

  static: test2()
  test2()

# bug #12551
type
  StUint = object
    lo: uint64

func `+=`(x: var Stuint, y: Stuint) =
  x.lo += y.lo

func `-`(x, y: Stuint): Stuint =
  result.lo = x.lo - y.lo

func `+`(x, y: Stuint): Stuint =
  result.lo = x.lo + y.lo

func `-=`(x: var Stuint, y: Stuint) =
  x = x - y

func `<`(x, y: Stuint): bool=
  x.lo < y.lo

func `==`(x, y: Stuint): bool =
  x.lo == y.lo

func `<=`(x, y: Stuint): bool =
  x.lo <= y.lo

proc div3n2n(r: var Stuint, b: Stuint) =
  var d: Stuint
  r = d
  r += b

func div2n1n(r: var Stuint, b: Stuint) =
  div3n2n(r, b)

func divmodBZ(x, y: Stuint, r: var Stuint)=
  div2n1n(r, y)
  r.lo = 3

func `mod`(x, y: Stuint): Stuint =
  divmodBZ(x, y, result)

func doublemod_internal(a, m: Stuint): Stuint =
  result = a
  if a >= m - a:
    result -= m
  result += a

func mulmod_internal(a, b, m: Stuint): Stuint =
  var (a, b) = (a, b)
  swap(a, b)
  debugEcho "x1 a: ", a
  a = doublemod_internal(a, m)
  debugEcho "x2 a: ", a
  a = doublemod_internal(a, m)
  debugEcho "x3 a: ", a

func powmod_internal(a, m: Stuint): Stuint =
  var a = a
  debugEcho "z1 m: ", m
  debugEcho "z2 a: ", a
  result = mulmod_internal(result, a, m)
  debugEcho "z3 a: ", a
  a = mulmod_internal(a, a, m)

func powmod*(a, m: Stuint) =
  discard powmod_internal(a mod m, m)

static:
  var x = Stuint(lo: high(uint64))
  var y = Stuint(lo: 12)

  powmod(x, y)

# bug #16780
when true:
  template swap*[T](a, b: var T) =
    var a2 = addr(a)
    var b2 = addr(b)
    var aOld = a2[]
    a2[] = b2[]
    b2[] = aOld

  proc rather =
    block:
      var a = 1
      var b = 2
      swap(a, b)
      echo (a,b)

    block:
      type Foo = ref object
        x: int
      var a = Foo(x:1)
      var b = Foo(x:2)
      swap(a, b)
      echo (a.x, b.x)

    block:
      type Foo = object
        x: int
      var a = Foo(x:1)
      var b = Foo(x:2)
      swap(a, b)
      echo (a.x,b.x)

  static: rather()
  rather()

# bug #16020
when true:
  block:
    type Foo = object
      f0: int
    proc main=
      var f = Foo(f0: 3)
      var f2 = f.addr
      f2[].f0 += 1
      f2.f0 += 1
      echo f
    static: main()
    main()

import tables, strutils

# bug #14553
const PpcPatterns = @[("aaaa", "bbbb"), ("aaaaa", "bbbbb"), ("aaaaaa", "bbbbbb"), ("aaaaaaa", "bbbbbbb"), ("aaaaaaaa", "bbbbb")]

static:
    var
        needSecondIdentifier = initTable[uint32, seq[(string, string)]]()

    for (name, pattern) in PpcPatterns:
        let
            firstPart = 0'u32
            lastPart = "test"

        needSecondIdentifier.mgetOrPut(firstPart, @[]).add((name, pattern))

    doAssert needSecondIdentifier[0] == @[("aaaa", "bbbb"), ("aaaaa", "bbbbb"), ("aaaaaa", "bbbbbb"), ("aaaaaaa", "bbbbbbb"), ("aaaaaaaa", "bbbbb")]