Add new annotations for property accessors

We introduce two new annotations:

  - (set-property PROPERTY_NAME)
  - (get-property PROPERTY_NAME)

These annotations are valid inside function blocks for methods on
objects and interfaces, and define whether a function is a property
accessor, e.g.:

    /**
     * gtk_widget_set_name: (set-property name)
     * @self: ...
     * @name: ...
     *
     * ...
     */

    /**
     * gtk_widget_get_name: (get-property name)
     * @self: ...
     *
     * ...
     *
     * Returns: ...
     */

The annotations are transformed into the GIR data as attributes:

 - glib:set-property="PROPERTY_NAME"
 - glib:get-property="PROPERTY_NAME"

The underlying typelib data has had flags for setter and getter
functions for a while, but they have never been plugged into the GIR
data or the introspection scanner. Now they are; you can retrieve the
GIPropertyInfo from a GIFunctionInfo that has the GI_FUNCTION_IS_SETTER
or GI_FUNCTION_IS_GETTER flags set.

Fixes: #13

1 files changed, 2 insertions, 0 deletions

diff --git a/giscanner/ast.py b/giscanner/ast.py
index e11fc988..a85e8879 100644
--- a/giscanner/ast.py
+++ b/giscanner/ast.py
@@ -752,6 +752,8 @@ class Function(Callable):
         self.shadows = None             # C symbol string
         self.moved_to = None            # namespaced function name string
         self.internal_skipped = False   # if True, this func will not be written to GIR
+        self.set_property = None        # Property name
+        self.get_property = None        # Property name
 
     def clone(self):
         clone = copy.copy(self)