[Vala] [ANNOUNCE] Vala 0.1.7 - Compiler for the GObject type system

We are pleased to announce version 0.1.7 of Vala, a compiler for the
GObject type system.

Vala 0.1.7 is now available for download at:

Changes since 0.1.6
 * Support private property accessors.
 * Support default values for properties.
 * Improve support for array length and delegate target parameters.
 * Improve delegate and signal handler support.
 * Introduce new syntax to declare errordomains.
 * Improve exception support.
 * Report errors for missing return statements.
 * Report warnings for unreachable code.
 * Improve support for generic types.
 * Support pointer member access and pointer element access.
 * Support pointer arithmetic.
 * Add --quiet commandline option (Emmanuele Bassi)
 * Add WebKit bindings.
 * Add JSON-GLib bindings (Ali Sabil)
 * Add goocanvas bindings (Roberto Majadas)
 * Add hildon-fm-2 bindings (Levi Bard)
 * Add taglib bindings (Andreas Brauchli)
 * Add libusb bindings (Evan Nemerson)
 * Add bzip2 bindings (Maciej Piechotka)
 * Updates to the GLib, GTK+, GStreamer, and libsoup bindings.
 * Fixes for Windows.
 * Many bug fixes.

Vala is a new programming language that aims to bring modern programming
language features to GNOME developers without imposing any additional
runtime requirements and without using a different ABI compared to
applications and libraries written in C.

valac, the Vala compiler, is a self-hosting compiler that translates
Vala source code into C source and header files. It uses the GObject
type system to create classes and interfaces declared in the Vala source
code. It's also planned to generate GIDL files when gobject-
introspection is ready.

The syntax of Vala is similar to C#, modified to better fit the GObject
type system. Vala supports modern language features as the following:

        * Interfaces
        * Properties
        * Signals
        * Foreach
        * Lambda expressions
        * Type inference for local variables
        * Generics
        * Non-null types
        * Assisted memory management
        * Exception handling

Vala is designed to allow access to existing C libraries, especially
GObject-based libraries, without the need for runtime bindings. Each to
be used library requires a Vala API file at compile-time, containing the
class and method declarations in Vala syntax. Vala currently comes with
bindings for current versions of GLib, GTK+, and many more.

Using classes and methods written in Vala from an application written in
C is not difficult. The Vala library only has to install the generated
header files and C applications may then access the GObject-based API of
the Vala library as usual. It should also be easily possible to write a
bindings generator for access to Vala libraries from applications
written in e.g. C# as the Vala parser is written as a library, so that
all compile-time information is available when generating a binding.

More information about Vala is available at


The Vala Team

        Jürg Billeter and Raffaele Sandrini

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