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-rw-r--r--i/marvin/src/interpreter/Makefile.defs5
-rw-r--r--i/marvin/src/interpreter/interpreter.cc67
-rw-r--r--i/marvin/src/interpreter/interpreter.hh72
-rw-r--r--i/marvin/src/interpreter/interpreter.tcc137
-rw-r--r--i/marvin/src/interpreter/test_interpreter.cc106
5 files changed, 387 insertions, 0 deletions
diff --git a/i/marvin/src/interpreter/Makefile.defs b/i/marvin/src/interpreter/Makefile.defs
new file mode 100644
index 0000000..d1aac01
--- /dev/null
+++ b/i/marvin/src/interpreter/Makefile.defs
@@ -0,0 +1,5 @@
+PROGRAMS += test_interpreter
+
+interpreter_OBJECTS = interpreter.o $(utils_OBJECTS)
+
+test_interpreter_OBJECTS = test_interpreter.o $(interpreter_OBJECTS)
diff --git a/i/marvin/src/interpreter/interpreter.cc b/i/marvin/src/interpreter/interpreter.cc
new file mode 100644
index 0000000..4b034e3
--- /dev/null
+++ b/i/marvin/src/interpreter/interpreter.cc
@@ -0,0 +1,67 @@
+// interpreter.cc
+// marvin - programme du robot 2006. {{{
+//
+// Copyright (C) 2006 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2006.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "interpreter.hh"
+
+/// Destructor.
+Interpreter::~Interpreter (void)
+{
+ for (Funcs::iterator i = funcs_.begin (); i != funcs_.end (); ++i)
+ {
+ delete i->second;
+ }
+}
+
+/// Add a function, Interpreter owns f.
+void
+Interpreter::add (const std::string &s, Func *f)
+{
+ if (!funcs_.insert (Funcs::value_type (s, f)).second)
+ {
+ // Interpreter owns f, therefore, f must be deleted.
+ delete f;
+ throw std::runtime_error ("function \'" + s
+ + "\' inserted two times");
+ }
+}
+
+/// Call a function by name.
+bool
+Interpreter::call (const std::string &s, const Args &a) const
+{
+ Funcs::const_iterator i;
+ i = funcs_.find (s);
+ if (i == funcs_.end ())
+ throw std::runtime_error ("function \'" + s + "\' does not exist");
+ try
+ {
+ return (*i->second) (a);
+ }
+ catch (const std::exception &e)
+ {
+ throw std::runtime_error ("while calling \'" + s + "\', "
+ + e.what ());
+ }
+}
+
diff --git a/i/marvin/src/interpreter/interpreter.hh b/i/marvin/src/interpreter/interpreter.hh
new file mode 100644
index 0000000..729f321
--- /dev/null
+++ b/i/marvin/src/interpreter/interpreter.hh
@@ -0,0 +1,72 @@
+#ifndef interpreter_hh
+#define interpreter_hh
+// interpreter.hh
+// marvin - programme du robot 2006. {{{
+//
+// Copyright (C) 2006 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2006.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "utils/any.hh"
+
+#include <map>
+
+class Interpreter
+{
+ public:
+ /// Function arguments.
+ typedef any Arg;
+ /// Function arguments list.
+ typedef std::list<Arg> Args;
+ /// Functions must inherit from this type.
+ class Func
+ {
+ public:
+ /// Mandatory virtual destructor.
+ virtual ~Func (void)
+ { }
+ /// Called on function invocation, getting the argument list and
+ /// returning true on success.
+ virtual bool operator() (const Args &) = 0;
+ };
+ private:
+ /// Func class construction helper.
+ template<class T, typename F>
+ class MemFunc;
+ private:
+ /// Type of the private function map.
+ typedef std::map<std::string, Func *> Funcs;
+ /// The function map itself.
+ Funcs funcs_;
+ public:
+ /// Destructor.
+ ~Interpreter (void);
+ /// Add a function, Interpreter owns f.
+ void add (const std::string &s, Func *f);
+ /// Call a function by name.
+ bool call (const std::string &s, const Args &a) const;
+ /// Take all the template sophistications out of the programmer hands.
+ template<class T, typename F>
+ static Func *memFunc (T &i, F f);
+};
+
+#include "interpreter.tcc"
+
+#endif // interpreter_hh
diff --git a/i/marvin/src/interpreter/interpreter.tcc b/i/marvin/src/interpreter/interpreter.tcc
new file mode 100644
index 0000000..0e4fcf9
--- /dev/null
+++ b/i/marvin/src/interpreter/interpreter.tcc
@@ -0,0 +1,137 @@
+#ifndef interpreter_tcc
+#define interpreter_tcc
+// interpreter.tcc
+// marvin - programme du robot 2006. {{{
+//
+// Copyright (C) 2006 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2006.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "utils/meta/remove_reference.hh"
+
+#include <stdexcept>
+
+/// Func class construction helper.
+template<class T, typename F>
+class Interpreter::MemFunc
+{
+};
+
+/// Partially specialised for member functions taking an arguments list.
+template<class T>
+class Interpreter::MemFunc<T, bool (T::*) (const Interpreter::Args &)> : public Func
+{
+ T &i_;
+ typedef bool (T::*F) (const Interpreter::Args &);
+ F f_;
+ public:
+ MemFunc (T &i, F f) : i_ (i), f_ (f) { }
+ bool operator() (const Args &a)
+ {
+ return (i_.*f_) (a);
+ }
+};
+
+/// Partially specialised for members functions taking no argument.
+template<class T>
+class Interpreter::MemFunc<T, bool (T::*) (void)> : public Func
+{
+ T &i_;
+ typedef bool (T::*F) (void);
+ F f_;
+ public:
+ MemFunc (T &i, F f) : i_ (i), f_ (f) { }
+ bool operator() (const Args &a)
+ {
+ if (!a.empty ())
+ throw std::runtime_error ("no argument expected");
+ return (i_.*f_) ();
+ }
+};
+
+/// Partially specialised for members functions taking one argument.
+template<class T, typename A1>
+class Interpreter::MemFunc<T, bool (T::*) (A1)> : public Func
+{
+ T &i_;
+ typedef bool (T::*F) (A1);
+ F f_;
+ public:
+ MemFunc (T &i, F f) : i_ (i), f_ (f) { }
+ bool operator() (const Args &a)
+ {
+ Args::const_iterator i = a.begin ();
+ if (a.size () != 1)
+ throw std::runtime_error ("one argument expected");
+ A1 a1 = any_cast<typename meta::removeReference<A1>::type> (*i);
+ return (i_.*f_) (a1);
+ }
+};
+
+/// Partially specialised for members functions taking two arguments.
+template<class T, typename A1, typename A2>
+class Interpreter::MemFunc<T, bool (T::*) (A1, A2)> : public Func
+{
+ T &i_;
+ typedef bool (T::*F) (A1, A2);
+ F f_;
+ public:
+ MemFunc (T &i, F f) : i_ (i), f_ (f) { }
+ bool operator() (const Args &a)
+ {
+ Args::const_iterator i = a.begin ();
+ if (a.size () != 2)
+ throw std::runtime_error ("two arguments expected");
+ A1 a1 = any_cast<typename meta::removeReference<A1>::type> (*i);
+ A2 a2 = any_cast<typename meta::removeReference<A2>::type> (*++i);
+ return (i_.*f_) (a1, a2);
+ }
+};
+
+/// Partially specialised for members functions taking three arguments.
+template<class T, typename A1, typename A2, typename A3>
+class Interpreter::MemFunc<T, bool (T::*) (A1, A2, A3)> : public Func
+{
+ T &i_;
+ typedef bool (T::*F) (A1, A2, A3);
+ F f_;
+ public:
+ MemFunc (T &i, F f) : i_ (i), f_ (f) { }
+ bool operator() (const Args &a)
+ {
+ Args::const_iterator i = a.begin ();
+ if (a.size () != 3)
+ throw std::runtime_error ("three arguments expected");
+ A1 a1 = any_cast<typename meta::removeReference<A1>::type> (*i);
+ A2 a2 = any_cast<typename meta::removeReference<A2>::type> (*++i);
+ A3 a3 = any_cast<typename meta::removeReference<A3>::type> (*++i);
+ return (i_.*f_) (a1, a2, a3);
+ }
+};
+
+/// Take all the template sophistications out of the programmer hands.
+template<class T, typename F>
+Interpreter::Func *
+Interpreter::memFunc (T &i, F f)
+{
+ return new MemFunc<T, F> (i, f);
+}
+
+#endif // interpreter_tcc
diff --git a/i/marvin/src/interpreter/test_interpreter.cc b/i/marvin/src/interpreter/test_interpreter.cc
new file mode 100644
index 0000000..99a9ad9
--- /dev/null
+++ b/i/marvin/src/interpreter/test_interpreter.cc
@@ -0,0 +1,106 @@
+// test_interpreter.cc
+// marvin - programme du robot 2006. {{{
+//
+// Copyright (C) 2006 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2006.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "interpreter.hh"
+
+#include <iostream>
+#include <algorithm>
+#include <iterator>
+
+class TestInterpreter
+{
+ Interpreter t;
+ public:
+ bool funcA (const Interpreter::Args &a)
+ {
+ std::cout << " a " << a << std::endl;
+ return true;
+ }
+ bool funcB (void)
+ {
+ std::cout << " b ( )" << std::endl;
+ return true;
+ }
+ bool funcC (int i)
+ {
+ std::cout << " c ( " << i << " )" << std::endl;
+ return true;
+ }
+ bool funcD (const std::string &s)
+ {
+ std::cout << " d ( " << s << " )" << std::endl;
+ return true;
+ }
+ bool funcE (int i, const std::string &s, double d)
+ {
+ std::cout << " e ( " << i << ' ' << s << ' ' << d << " )" << std::endl;
+ return true;
+ }
+ void call (const std::string &s, const Interpreter::Args &a)
+ {
+ try
+ {
+ std::cout << "call " << s << ' ' << a << std::endl;
+ t.call (s, a);
+ }
+ catch (const std::exception &e)
+ {
+ // Do not use std::cerr as there should be only normal errors.
+ std::cout << ' ' << e.what () << std::endl;
+ }
+ }
+ int main (void)
+ {
+ Interpreter::Args a[4];
+ // Add functions.
+ t.add ("a", Interpreter::memFunc (*this, &TestInterpreter::funcA));
+ t.add ("b", Interpreter::memFunc (*this, &TestInterpreter::funcB));
+ t.add ("c", Interpreter::memFunc (*this, &TestInterpreter::funcC));
+ t.add ("d", Interpreter::memFunc (*this, &TestInterpreter::funcD));
+ t.add ("e", Interpreter::memFunc (*this, &TestInterpreter::funcE));
+ // Make argument lists.
+ a[1].push_back (71117);
+ a[2].push_back (std::string ("robert"));
+ a[3].push_back (42);
+ a[3].push_back (std::string ("merguez"));
+ a[3].push_back (51.1664);
+ // Call all those wonderful functions.
+ call ("unknown", a[0]);
+ for (unsigned int i = 0; i < sizeof (a) / sizeof (a[0]); ++i)
+ {
+ call ("a", a[i]);
+ call ("b", a[i]);
+ call ("c", a[i]);
+ call ("d", a[i]);
+ call ("e", a[i]);
+ }
+ return 0;
+ }
+};
+
+int main (void)
+{
+ TestInterpreter tt;
+ return tt.main ();
+}