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diff --git a/web/news/e007_version_0_9_2.rst b/web/news/e007_version_0_9_2.rst deleted file mode 100644 index 89352c06c..000000000 --- a/web/news/e007_version_0_9_2.rst +++ /dev/null @@ -1,118 +0,0 @@ -Version 0.9.2 released -====================== - -.. container:: metadata - - Posted by Dominik Picheta on 20/05/2013 - -We are pleased to announce that version 0.9.2 of the Nimrod compiler has been -released. This release has attracted by far the most contributions in comparison -to any other release. - -This release brings with it many new features and bug fixes, a list of which -can be seen later. One of the major new features is the effect system together -with exception tracking which allows for checked exceptions and more, -for further details check out the `manual <manual.html#effect-system>`_. -Another major new feature is the introduction of statement list expressions, -more details on these can be found `here <manual.html#statement-list-expression>`_. -The ability to exclude symbols from modules has also been -implemented, this feature can be used like so: ``import module except symbol``. - -Thanks to all `contributors <https://github.com/Araq/Nimrod/contributors>`_! - -Bugfixes --------- - -- The old GC never collected cycles correctly. Fixed but it can cause - performance regressions. However you can deactivate the cycle collector - with ``GC_disableMarkAndSweep`` and run it explicitly at an appropriate time - or not at all. There is also a new GC you can activate - with ``--gc:markAndSweep`` which does not have this problem but is slower in - general and has no realtime guarantees. -- ``cast`` for floating point types now does the bitcast as specified in the - manual. This breaks code that erroneously uses ``cast`` to convert different - floating point values. -- SCGI module's performance has been improved greatly, it will no longer block - on many concurrent requests. -- In total fixed over 70 github issues and merged over 60 pull requests. - - -Library Additions ------------------ - -- There is a new experimental mark&sweep GC which can be faster (or much - slower) than the default GC. Enable with ``--gc:markAndSweep``. -- Added ``system.onRaise`` to support a condition system. -- Added ``system.locals`` that provides access to a proc's locals. -- Added ``macros.quote`` for AST quasi-quoting. -- Added ``system.unsafeNew`` to support hacky variable length objects. -- ``system.fields`` and ``system.fieldPairs`` support ``object`` too; they - used to only support tuples. -- Added ``system.CurrentSourcePath`` returning the full file-system path of - the current source file. -- The ``macros`` module now contains lots of useful helpers for building up - abstract syntax trees. - - -Changes affecting backwards compatibility ------------------------------------------ - -- ``shared`` is a keyword now. -- Deprecated ``sockets.recvLine`` and ``asyncio.recvLine``, added - ``readLine`` instead. -- The way indentation is handled in the parser changed significantly. However, - this affects very little (if any) real world code. -- The expression/statement unification has been implemented. Again this - only affects edge cases and no known real world code. -- Changed the async interface of the ``scgi`` module. -- WideStrings are now garbage collected like other string types. - - -Compiler Additions ------------------- - -- The ``doc2`` command does not generate output for the whole project anymore. - Use the new ``--project`` switch to enable this behaviour. -- The compiler can now warn about shadowed local variables. However, this needs - to be turned on explicitly via ``--warning[ShadowIdent]:on``. -- The compiler now supports almost every pragma in a ``push`` pragma. -- Generic converters have been implemented. -- Added a **highly experimental** ``noforward`` pragma enabling a special - compilation mode that largely eliminates the need for forward declarations. - -Language Additions ------------------- - -- ``case expressions`` are now supported. -- Table constructors now mimic more closely the syntax of the ``case`` - statement. -- Nimrod can now infer the return type of a proc from its body. -- Added a ``mixin`` declaration to affect symbol binding rules in generics. -- Exception tracking has been added and the ``doc2`` command annotates possible - exceptions for you. -- User defined effects ("tags") tracking has been added and the ``doc2`` - command annotates possible tags for you. -- Types can be annotated with the new syntax ``not nil`` to explicitly state - that ``nil`` is not allowed. However currently the compiler performs no - advanced static checking for this; for now it's merely for documentation - purposes. -- An ``export`` statement has been added to the language: It can be used for - symbol forwarding so client modules don't have to import a module's - dependencies explicitly. -- Overloading based on ASTs has been implemented. -- Generics are now supported for multi methods. -- Objects can be initialized via an *object constructor expression*. -- There is a new syntactic construct ``(;)`` unifying expressions and - statements. -- You can now use ``from module import nil`` if you want to import the module - but want to enforce fully qualified access to every symbol in ``module``. - - -Notes for the future --------------------- - -- The scope rules of ``if`` statements will change in 0.9.4. This affects the - ``=~`` pegs/re templates. -- The ``sockets`` module will become a low-level wrapper of OS-specific socket - functions. All the high-level features of the current ``sockets`` module - will be moved to a ``network`` module. |