Merge pull request #2330 from def-/vm-conversion-error - Nim - This repository contains the Nim compiler, Nim's stdlib, tools, and documentation. (mirror)

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author	Andreas Rumpf <rumpf_a@web.de>	2015-03-13 15:27:55 +0100
committer	Andreas Rumpf <rumpf_a@web.de>	2015-03-13 15:27:55 +0100
commit	bbb62ca3a3f09df0bd6ee61bf9e39d6d5b30ee08 (patch)
tree	8026c2272bd8582f8732eab62a46f795ab94ddc2 /compiler/semparallel.nim
parent	d6c957e9b438ceb340c14139c9141ca102de4fa5 (diff)
parent	7daf410f465b2d4e928edd55b0fc763b5243adb0 (diff)
download	Nim-bbb62ca3a3f09df0bd6ee61bf9e39d6d5b30ee08.tar.gz

Merge pull request #2330 from def-/vm-conversion-error

Improve error message for failed conversion in VM

Diffstat (limited to 'compiler/semparallel.nim')

0 files changed, 0 insertions, 0 deletions

ic } /* Generic.EmphStrong */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */

discard """  
  cmd: '''nim c --gc:arc $file'''
  output: '''emptyemptyempty
inner destroy
'''
"""

# bug #15039

import lists

type
  Token = ref object of RootObj
    children: DoublyLinkedList[Token]

  Paragraph = ref object of Token

method `$`(token: Token): string {.base.} =
  result = "empty"

method `$`(token: Paragraph): string =
  if token.children.head == nil:
    result = ""
  else:
    for c in token.children:
      result.add $c

proc parseLeafBlockInlines(token: Token) =
  token.children.append(Token())
  token.children.append(Token()) # <-- this one AAA

  var emNode = newDoublyLinkedNode(Token())
  var i = 0

  var it = token.children.head
  while it != nil:
    var nxt = it.next  # this is not a cursor, it takes over ownership.
    var childNode = it
    if i == 0:
      childNode.next = emNode # frees the object allocated in line 29 marked with AAA
    elif i == 1:
      emNode.next = childNode  #
    it = nxt # incref on freed data, 'nxt' is freed
    inc i

proc parse() =
  var token = Token()
  token.children.append Paragraph()
  parseLeafBlockInlines(token.children.head.value)
  for children in token.children:
    echo children

parse()


#------------------------------------------------------------------------------
# issue #15629

type inner = object
type outer = ref inner

proc `=destroy`(b: var inner) =
  echo "inner destroy"

proc newOuter(): outer =
  new(result)

type holder = object
  contents: outer

proc main() = 
  var t: holder
  t.contents = newOuter()
  
main()


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