Foreign structs are special in the sense that there might
be native bindings (for instance PyCairo for PyGI) that provides
the same functionallity as the introspected variant.
https://bugzilla.gnome.org/show_bug.cgi?id=610357
Broadly speaking, this change adds the concept of <vfunc> to the .gir.
The typelib already had most of the infrastructure for virtual functions,
though there is one API addition.
The scanner assumes that any class callback slot that doesn't match
a signal name is a virtual. In the .gir, we write out *both* the <method>
wrapper and a <vfunc>. If we can determine an association between
them (based on the names matching, or a new Virtual: annotation),
then we notate that in the .gir.
The typelib gains an association from the vfunc to the function, if
it exists. This will be useful for bindings since they already know
how to consume FunctionInfo.
We now support an extensible mechanism where arbitrary key-value
pairs may be associated with almost all items, including objects,
methods, and properties.
These attributes appear in both the .gir and the .typelib.
Similar to GObject class structs, we pair up GInterfaces with
their C structures.
Also, move some GLib-specific things into glibast.py, and make
the naming more generic.
Inside glibtransformer, we now look at structures ending in "Class" and
see if they have an associated GlibObject (i.e. a structure of the same
name without the "Class" suffix). If found, pair them up.
The .gir file for <class> gains an attribute denoting its associated
class struct. Any <record> many now have a glib:is-class-struct-for
annotation which tells which (if any) <class> for which it defines the
layout.
In the .typelib, we record the association between the class and
its structure. Generic structures however just have a boolean
saying whether they're a class struct. (Going from a generic class
struct to its class should not be necessary).
Finally, we expose GIRepository APIs to access both bits of information
from the .typelib.
svn path=/trunk/; revision=1088
2008-01-03 Andreas Rottmann <a.rottmann@gmx.at>
Bug 556489 – callback annotations
* giscanner/transformer.py
* tools/generate.c (write_callable_info): Write out the new scope,
closure and destroy attributes.
* giscanner/transformer.py (Transformer._type_is_callback): New
method, checking if a given type is a callback.
(Transformer._augment_callback_params): New method; adds
information (closure, destroy) to callback parameters.
(Transformer._handle_closure, Transformer._handle_destroy): New methods,
auxiliary to _augment_callback_params.
(Transformer._create_function): Call _augment_callback_params().
(Transformer._create_parameter): Handle scope option.
(Transformer._create_typedef_callback): New method, creates a
callback, and registers it in the typedef namespace
(Transformer._create_typedef): Use _create_typedef_callback()
instead of the plain _create_callback().
* giscanner/ast.py (Parameter): Added callback-related fields.
* giscanner/girwriter.py: Write out new Parameter fields.
* girepository/girnode.h (GIrNodeParam): Added fields scope,
closure and destroy.
* girepository/gtypelib.h (ArgBlob): Ditto.
* girepository/girparser.c (start_parameter): Handle new fields.
* girepository/girmodule.c (g_ir_module_build_typelib): Adjust
arg_blob_size, bump major version due to this change.
* girepository/girnode.c (g_ir_node_get_full_size_internal)
(g_ir_node_build_typelib)
* girepository/gtypelib.c (g_typelib_check_sanity): ArgBlob size
adjustments.
(g_ir_node_build_typelib): Fill in new ArgBlob flags from param.
* girepository/girepository.h (GIScope): New enumeration, listing
the different possible scopes for callbacks.
* girepository/ginfo.c (g_arg_info_get_scope)
(g_arg_info_get_closure, g_arg_info_get_destroy): Accessors for
callback-related argument indices (callback scope, closure for a
callback, destroy notification for a callback).
* tests/scanner/: Added testcases for new features.
svn path=/trunk/; revision=998
In order to set and get enum and flag fields in structures, we need
to know the integral type that the enumeration is stored as. We are already
computing that at compile time in order to compute struct offsets, so the
easiest thing to do is to save that in the typelib.
* docs/typelib-format.txt girepository/girnode.[ch] girepository/giroffsets.c
girepository/gtypelib.h: Add 'storage_type' to the typelib format for EnumBlob
and compute and save it at compile time.
* girepository/girepository.h girepository/ginfo.c:
Add g_enum_info_get_storage_type().
* girepository/gfield.c: Implement reading and writing enum and flags fields
based on the storage type.
http://bugzilla.gnome.org/show_bug.cgi?id=561296
svn path=/trunk/; revision=944
2008-11-11 Owen Taylor <otaylor@redhat.com>
Compute field offsets and overall size for object structures
Bug 560326 – Fails to build Gtk-2.0.typelib with "Unexpected non-pointer
field of type object in structure"
Do basic computation of field offsets for objects and interfaces;
this doesn't attempt to address all of the "mess" for virtual
functions described in Bug 560281.
svn path=/trunk/; revision=888
girnode.h: Store the total size and alignment for
GIrNodeStruct/Boxed/Union.
giroffset.c: New file implementing computation of structure
field offsets.
girnode.c: Compute structure field offsets before writing types
into the typelib.
docs/typelib-format.txt: Document that a field offset of 0xFFFF
means "unknown". Also fix description of the discriminator_offset
field for unions.
svn path=/trunk/; revision=876
For some things, like computing structure offsets to put into the typelib
we need more than just the aliases from included modules. Do a completel
parse of included modules and store in module->included_modules.
Also add g_ir_find_node() to find node information from within the
active set of modules and their includes.
svn path=/trunk/; revision=874
Certain types like GIConv and GdkAtom are pointers internally but don't
look like pointers when referenced. They have the form.
typedef struct _X *X;
Parse these as structures/records but mark them in the gir with a 'disguised'
attribute so that we know that they need special handling.
In the typelib treat them like any other structure.
svn path=/trunk/; revision=872
2008-10-21 Johan Bilien <jobi@via.ecp.fr>
Bug 557241 – "throws" flag for functions
* tests/scanner/drawable-1.0-expected.gir,
tests/scanner/drawable-injected-1.0-expected.gir,
tests/scanner/drawable.[ch]: add simple test for throwing
function (has GError ** as last argument)
* giscanner/ast.py: add a 'throws' flag to Function
* giscanner/glibtransformer.py: if a function's last paramerter is
a GError, set the 'throws' flag and remove that parameter
* giscanner/girwriter.py: write out the 'throws' attribute
* giscanner/girparser.py: support parsing the 'throws' attribute
* tests/repository/gitestthrows.c: add a simple test to check the
throws flag in a typelib and invoke the function
* girepository/ginfo.c, girepository/girnode.[ch],
girepository/girnode.h, girepository/girparser.c,
girepository/girepository.h: Add and parse the GI_FUNCTION_THROWS flag
* girepository/ginvoke.c: if a function throws, add a GError as last
arguments, and propagate the error to the invoker.
svn path=/trunk/; revision=773
* girepository/girnode.c: Allow gtype_name
and gtype_init in struct and union.
* girepository/girparser.c: Parse glib:
boxed bits for both structure and union.
* girepository/gtypelib.c: Don't barf
if structure is boxed.
* giscanner/girparser.py: Parse new XML
format.
* giscanner/girwriter.py: Write out new
XML format.
* giscanner/glibast.py: Define new classes
which are both Boxed and Struct/Union, as
well as an "Other" for everything else.
* giscanner/glibtransformer.py: Handle
boxed types specially; we try to merge
them with a struct/union if one exists,
otherwise fall back to generic boxed.
* tests/*: Update.
* tools/generate.c: Write out new format.
svn path=/trunk/; revision=575
