Optimizing Oberon-2 Compiler

File Release Notes and Changelog

Release Name: 2.1.1

Notes:
This release fixes a build issue with MinGW 3.1, introduces two
experimental variants of the FOR statement, and includes some
minor bug fixes and cleanups.


Changes:
(oo2c) The "verbose" command line option `-v' has been revived.  If
set, then the compiler prints the names of files read and shell
commands.  This is the old behaviour of 2.x.  If not set, then only
errors and warnings are written to stdout.

(oo2c) The "fastcall" calling convention, as implemented by
Microsoft's C compiler as well as recent versions of GCC, has been
added.

(oo2c) Error checking has been improved for set types (#933554) and
initializer methods (#917211, #917202).

(library) A definition clash of "ssize_t" has been removed for MinGW
3.1.


In addition to this, two experimental variants of the FOR statement
have been added:

1) Iterating over Array

If x is an array value, then

  FOR v IN x DO
    ...
  END;

is equivalent to

  temp := 0;
  WHILE (temp # LEN(x)) DO
    v := x[temp];
    ...
    INC(temp);
  END;

2) Iterator Object

If x.Iter() produces a record pointer with a method Next() that has 
exactly one variable parameter and that returns a BOOLEAN value, then 

  FOR v IN x.Iter() DO
    ...
  END;

becomes

  temp := x.Iter();
  WHILE temp.Next(v) DO
    ...
  END;