Add support for special variable replacement in the $typemap()
special variable macro for R specific typemaps (rtype, rtypecheck,
scoercein, scoereout).
Arrange that destructors of local C++ objects in the wrapper function
get run on SWIG_fail (which calls Rf_error() which calls longjmp()).
We achieve this by putting almost everything in the function in its
own block, and end that right before Rf_error() at which point those
destructors will get called.
Add Swig_obligatory_macros which must be called by each
target language to define SWIG_VERSION correctly
in the generated code, as well as the language specific
macro SWIGXXX where XXX is the target language name.
Drop the #ifdef SWIGXXX that was previously generated -
I can't see the point of this and if users are defining
this macro somehow, then users will need to change this
Closes#1050
Found via `codespell -q 3 -L ans,anumber,ba,bae,chello,clos,cmo,coo,dout,fo,funktion,goin,inout,methid,nd,nin,nnumber,object,objekt,od,ois,packag,parm,parms,pres,statics,strack,struc,tempdate,te,thru,uint,upto,writen`
The debug command line options that display parse tree nodes
(-debug-module, -debug-top, -debug-symtabs) now display previously hidden
linked list pointers which are useful for debugging parse trees.
Added new command line option -debug-quiet. This suppresses the display
of most linked list pointers and symbol table pointers in the parse tree nodes.
The keys in the parse tree node are now shown in alphabetical order.
Exit() is a wrapper for exit() by default, but SetExitHandler() allows
specifying a function to call instead.
This means that failures within DOH (e.g. Malloc() failing due to lack
of memory) will now perform cleanup such as removing output files.
This commit also cleans up exit statuses so SWIG should now reliably
exit with status 0 if the run was successful and status 1 if there was
an error (or a warning and -Werror was in effect).
Previously in some situations SWIG would try to exit with the status set
to the number of errors encountered, but that's problematic - for
example if there were 256 errors this would result in exit status 0 on
most platforms. Also some error statuses have special meanings e.g.
those defined by <sysexits.h>.
Also SWIG/Javascript tried to exit with status -1 in a few places (which
typically results in exit status 255).
These were officially deprecated in 2001, and attempts to use them have
resulted in a warning (including a pointer to what to update them to)
for most if not all of that time.
Fixes#1984
There is a possible memory leak in case the SWIG_exception_fail macro
is called. The problem is related to its definition that call the
function Rf_warning. This function (as well as Rf_error) involves
a longjmp over C++ destructors on the stack. Thus, all the objects
allocated on the heap are not freed.
Closes#914
There is some consolidation work to be done. The
core of the change is getRClassName2, which will
probably eventually replace getRClassName.
getRClassName seems to be in a funny state, with
a middle argument that is commented out and never
used.
My next step is to verify whether the new version
can replace it.
arbitarily complex value expressions.
R-side initialization of the enumeration structure employs
delayedAssign, which allows the initialization code to be
sourced before loading the shared library, which is the
usual behaviour for code in an R package.
The -cppcast option is still turned on by default. The -nocppcast option
to turn off the use of c++ casts (const_cast, static_cast etc) has been
removed. However, defining SWIG_NO_CPLUSPLUS_CAST will still generate C casts
instead of C++ casts for C++ wrappers.
This a revert of commit fc79264a48:
"Revert "Remove -cppcast and -nocppcast command line options""
The Scilab and Javascript casting problems are now fixed, so -cppcast
is now switched on as default.
The -cppcast option is still turned on by default. The -nocppcast option
to turn off the use of c++ casts (const_cast, static_cast etc) has been
removed. However, defining SWIG_NO_CPLUSPLUS_CAST will still generate C casts
instead of C++ casts for C++ wrappers.
Replace R_SWIG_EXTERNAL and R_SWIG_OWNER with the standard equivalent
macros. I can't see where these were actually used, but in case they are,
equivalent backwards compatibility can be obtained using:
#define R_SWIG_EXTERNAL 0
#define R_SWIG_OWNER SWIG_POINTER_OWN
SWIG_MakePtr does not seem to be used within the R SWIG code base so I
havn't added the above as backwards compatibility macros.
There seems to be no memory management in R. I've made this change
to fit in with the rest of SWIG though in preparation for an upcoming
commit to use the same shared_ptr macros as is used elsewhere.
