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/*
* Copyright (c) @ Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the MASH Research
* Group at the University of California Berkeley.
* 4. Neither the name of the University nor of the Research Group may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#) $Header: /cvsroot/otcl-tclcl/tclcl/tclcl-mappings.h,v 1.15 2001/08/21 01:26:42 lloydlim Exp $
*/
#ifndef Tclcl_mappings_h
#define Tclcl_mappings_h
class TclObject;
class Tcl;
template <class T>
class TclObjectHelper {
protected:
typedef int (T::*TMethod)(int argc,const char*const* argv);
static int dispatch_(ClientData clientData, Tcl_Interp * /*interp*/,
int argc, char *argv[]) {
Tcl& tcl = Tcl::instance();
T *o = (T*) tcl.lookup(argv[0]);
if (o!=NULL) {
TMethod *pMethod = (TMethod*) clientData;
return (o->*(*pMethod))(argc-2, argv+2);
}
tcl.resultf("Could not find TclObject for '%s'", argv[0]);
return TCL_ERROR;
}
};
class TclArguments {
public:
TclArguments(int argc, const char * const *argv)
: current_(2), argc_(argc), argv_(argv) { }
~TclArguments() { }
int arg(int &value);
int arg(unsigned int &value);
int arg(unsigned short &value);
int arg(double &value);
int arg(const char *&value);
int arg(TclObject *&value);
inline int more_args() const {
return (current_ < argc_);
}
inline int current() const { return current_; }
void add_error() const;
private:
int next(const char *&arg);
int current_, argc_;
const char * const *argv_;
};
/*-------------------------------------------------------------------------*/
#define DECLARE_OTCLCLASS(classname, otclname) \
\
static class classname ## _Class : public TclClass, \
public TclObjectHelper<classname> { \
public: \
typedef TclObjectHelper<classname> MyHelper; \
typedef classname MyTclObject; \
\
classname ## _Class() : TclClass(otclname) { } \
TclObject *create(int argc, const char*const* argv); \
void otcl_mappings(); \
} classname ## _class_obj
/*-------------------------------------------------------------------------*/
#define DEFINE_ABSTRACT_OTCL_CLASS(classname, otclname) \
DECLARE_OTCLCLASS(classname, otclname); \
\
inline TclObject *classname ## _Class::create(int /*argc*/, \
const char*const* /*argv*/) { \
Tcl::instance().resultf("cannot create object of abstract class " \
"'%s'", classname_); \
return NULL; \
} \
\
void classname ## _Class::otcl_mappings()
/*-------------------------------------------------------------------------*/
#define DEFINE_OTCL_CLASS(classname, otclname) \
DECLARE_OTCLCLASS(classname, otclname); \
\
inline TclObject *classname ## _Class::create(int /*argc*/, \
const char*const* /*argv*/) { \
return (new MyTclObject); \
} \
\
void classname ## _Class::otcl_mappings()
/*-------------------------------------------------------------------------*/
#define INSTPROC(c_method) \
{ \
static MyHelper::TMethod method = &MyTclObject::c_method; \
OTclAddIMethod(class_, #c_method, MyHelper::dispatch_, \
(void*) &method, NULL); \
}
#define INSTPROC_PUBLIC(c_method) INSTPROC(c_method)
#define INSTPROC_PRIVATE(c_method) INSTPROC(c_method)
/*-------------------------------------------------------------------------*/
#define PROC(c_static_method) \
{ \
int (*method)(int,const char*const*) = &MyTclObject::c_static_method;\
OTclAddPMethod((OTclObject*)class_, #c_static_method, \
TclObject::dispatch_static_proc, \
(void*) method, NULL); \
}
#define PROC_PUBLIC(c_static_method) PROC(c_static_method)
#define PROC_PRIVATE(c_static_method) PROC(c_static_method)
/*-------------------------------------------------------------------------*/
#define BEGIN_PARSE_ARGS(argc, argv) \
TclArguments _args_(argc, argv)
/*-------------------------------------------------------------------------*/
#define END_PARSE_ARGS \
if (_args_.more_args()) { \
Tcl::instance().resultf("Extra arguments (starting at " \
"argument %d)", _args_.current()-1); \
_args_.add_error(); \
return TCL_ERROR; \
}
/*-------------------------------------------------------------------------*/
#define ARG(var) \
do { \
if (_args_.arg(var)==TCL_ERROR) { \
return TCL_ERROR; \
} \
} while (0)
/*-------------------------------------------------------------------------*/
#define ARG_DEFAULT(var, default) \
do { \
if (!_args_.more_args()) { \
var = default; \
} \
else if (_args_.arg(var)==TCL_ERROR) { \
return TCL_ERROR; \
} \
} while (0)
/*-------------------------------------------------------------------------*/
#endif // Tclcl_mappings_h
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