vala 0.47.1

[Rico Tzschichholz <install-module master gnome org>]

About vala
==========

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.

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, Type modules
(Plugins)

Vala is designed to allow access to existing C libraries, especially
GObject-based libraries, without the need for runtime bindings. All
that is needed to use a library with Vala is an API file, containing
the class and method declarations in Vala syntax. Vala currently comes
with bindings for GLib and GTK+ and many others from the GNOME
Platform.

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.

News
====

 * Highlights:
  - Various improvements for the POSIX profile
  - codegen:
    + Allow passing/retrieving any delegate to/from varargs parameter
    + Support gobject property of null-terminated array without length [#855]
    + Support gobject property of delegates not carrying their target [#856]
    + Warn when directly accessing member of silent cast-expression
  - vala:
    + Add DelegateType.target/destroy fields to access its user-data [#857]
    + Accept interface as inner type for object-type symbols [#697]
    + Add GenericType.dup/destroy fields [#190]
    + Support "unowned var" to declare local variables [#152]
  - compiler: Add "--list-sources" options to output list of all sources [#872]

 * Various improvements and bug fixes:
  - codegen:
    + Move type-argument checks to SemanticAnalyzer
    + Make CCodeBaseModule.generate_method_declaration() return bool
    + Fix custom reference-counting for compact classes
    + G_DEFINE_AUTOPTR_CLEANUP_FUNC must not declared more than once
    + Use SemanticAnalyzer.get_data_type_for_symbol()
    + Commonize the determining of return-type for delegates and methods
  - vala:
    + Rename DataType.data_type property to DataType.type_symbol
    + Unify backing symbol instance of data-types
    + Respect --abi-stability in Class/Interface.accept_children()
    + Don't mark method as used on recursive usage of itself [#100]
    + Set GLib.Error as symbol of error-types if no error-domain was given
    + Make Callable derive from Symbol
  - libvaladoc: Remove TypeReference.pass_ownership API
  - valadoc: Rename FormalParameter to Parameter
  - girwriter: Fix position of priv field (--abi-stability) [#850]

 * Bindings:
  - glib-2.0: Add binding for "gettext()" [#864]
  - glib-2.0: Add new symbols from 2.64
  - glib-2.0: Add optional "base" parameter to *.parse/try_parse() of integers
    and check errno for EINVAL and ERANGE in *.try_parse() [#223]
  - glib-2.0: Add (u)int.try_parse() [#649]
  - glib-2.0: Add "has_typedef = false" to custom MarkupParser*Func delegates
  - gtk+-*.0: Fix iter parameter of TextBuffer.backspace()
  - gtksourceview-2.0: Fix iter parameter in SourceBuffer.backward/forward/...
  - libusb-1.0: Use a wrapper for Context.get_device_list() [#151]


ChangeLog
=========
https://download.gnome.org/sources/vala/0.47/vala-0.47.1.changes  (689)

Download
========
https://download.gnome.org/sources/vala/0.47/vala-0.47.1.tar.xz (3.23M)
  sha256sum: b694b2edc09315ac53c27767069d321705744e36d206a3ea4c2eb53d0d890e07