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remove the need for the .procvar annotation

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This commit is contained in:
Andreas Rumpf 2017-04-03 16:35:41 +02:00
commit 08f5087d2c
4 changed files with 37 additions and 30 deletions
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10
doc/manual/types.txt
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@ -1003,16 +1003,6 @@ Nim supports these `calling conventions`:idx:\:
Most calling conventions exist only for the Windows 32-bit platform.
Assigning/passing a procedure to a procedural variable is only allowed if one
of the following conditions hold:
1) The procedure that is accessed resides in the current module.
2) The procedure is marked with the ``procvar`` pragma (see `procvar pragma <#pragmas-procvar-pragma>`_).
3) The procedure has a calling convention that differs from ``nimcall``.
4) The procedure is anonymous.
The rules' purpose is to prevent the case that extending a non-``procvar``
procedure with default parameters breaks client code.
The default calling convention is ``nimcall``, unless it is an inner proc (a
proc inside of a proc). For an inner proc an analysis is performed whether it
accesses its environment. If it does so, it has the calling convention