Stas Boukarev authored Jan 12, 2013 and Luís Oliveira committed Feb 21, 2013

Fixes issue with ABCL not finding things like "strcmp" when no libraries
are loaded.

Joshua Elsasser authored Dec 15, 2012 and Luís Oliveira committed Jan 06, 2013

This is especially useful when the type and count have been groveled.

Juan Jose Garcia Ripoll authored Nov 22, 2012 and Luís Oliveira committed Jan 06, 2013

The previous fix did not work with functions that return no values.
Surround the code with braces, so that the C compiler does not
complain about the extern declaration.

Juanjo Garcia-Ripoll authored Nov 22, 2012 and Luís Oliveira committed Jan 06, 2013

Allow the ECL backend to support different combinations of FFI in
the same code by customizing a single special variable.

Stas Boukarev authored Nov 23, 2012 and Stelian Ionescu committed Nov 24, 2012

consing aliens.

In defcstruct, there was a line, removed in be626770, that set a
default type class name by appending "-TCLASS".  Without this line,
the class will be directly FOREIGN-STRUCT-TYPE instead of a subclass.
This is acceptable if the translate methods are not going to be
redefined, but if they are, any change will apply to all instances
(including instances of subclasses of other structures, which may call
these with call-next-method).  In fact, there is a check in
define-translation-method to prevent redefinition with that macro, but
of course a defmethod would be just as bad.

While in principal one can specify the :class argument, this isn't
always possible, for example, if the structure was made by groveling.
Even so, it is a bad idea to make a default which has the potential
for this kind of harm.

This fix now permits GSLL to compile and load correctly.

easye authored Oct 29, 2012 and Luís Oliveira committed Nov 04, 2012

The interactive restart when reloading callbacks is no longer needed.

A callable function pointer is now returned by CALLBACK and
GET-CALLBACK, which wasn't the case previously.

Now down to 25 failing tests!

Callbacks "automacro-ly" now get a translation layer to convert back
from native types to ones which ABCL expects.  This translation is
currently a work in progress, as not all cases are covered correctly.

(Stas Boukarev) MAKE-FUNCTION-POINTER typo.

Refactored to remove compile warnings about MAKE-IMMEDIATE-OBJECT.

CFFI-SYS::%LOAD-FOREIGN-LIBRARY tries harder to figure out which
library to load.

Docstrings added.

Add method expand-to-foreign-dyn-indirect for type foreign-type-alias so that foreign-string-type will be expanded correctly (as a pointer).

* Instead of a special variable, the parsed struct type instance is now
  annotated to let the type system know whether we're dealing with
  deprecated semantics (struct type canonicalizes to :pointer) or not.

  This approach should hopefully be much less error-prone.

* Disabled translations for bare structs.

* Fixed and commented out some bogus tests.

This broke other stuff, so revert until we understand what's happening

This reverts commit 944d3318.

Create a new function #'foreign-expand-runtime-translator-or-binding
which is what the methods
  expand-to-foreign-dyn (value var body (type enhanced-foreign-type))
  expand-to-foreign-dyn-indirect (value var body (type translatable-foreign-type))
both call.  Previously, the body of that function was the body of the
first method, and the second method called that generic function.
This did not work as intended however, the result being that libffi
calls were passed the actual object instead of the pointer.  This
change fixes that problem.

New function expand-to-foreign-dyn-indirect split out from
expand-to-foreign-dyn, and the latter function returned to its
definition as given in the tip of master, ab10be4f.  This function
is used if the optional argument 'indirect to translate-objects is T,
which in turn the case when functions are calling or return structures
by value.

Multi-level optimizations depending what arguments are constantp; 
the constantp arguments need to be evaled.

Patch courtesy of Mark Evenson.

Patch courtesy of Mark Evenson.

Patch courtesy of James Anderson.

New function mem-aptr will return the pointer to the requested element
of the array, and add documentation.  It is untested.

Use hash table for libffi-type-pointer instead of a class slot, and
simplify #'libffi-type-pointer methods.  Remove obsolete package
definition file.  Tests in cffi-tests not run due to error in load,
but GSLL tests pass.

Bug reported by Anton Vodonosov.

Argument 'indirect to #'expand-to-foreign-dyn is key instead of
optional, so that other systems that define a method can just have
&key, and they do not have to add this argument if they don't need to
use it.

In parse-args-and-types, foreign-funcall-form,
foreign-funcall-varargs-form, bind 
(*parse-bare-structs-as-pointers* t) 
when parsing function definitions so that if a bare structure is
specified, the expanded form with have :pointer or (:pointer (:struct
foo)) and therefore the type will be correctly recognized.