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// This file is part of the AspectC++ compiler 'ac++'.
// Copyright (C) 1999-2003 The 'ac++' developers (see aspectc.org)
//
// 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
#ifndef __MatchName_h__
#define __MatchName_h__
#include <iostream>
using std::ostream;
using std::endl;
#include <string>
using std::string;
#include <vector>
using std::vector;
#include "lexertl/state_machine.hpp"
#include "MatchType.h" // ugly cyclic relationship for conversion oper names
class MatchTemplateArgList;
class MatchName {
class Matcher {
public:
virtual bool matches (const string &name) const = 0;
virtual ~Matcher () {}
};
class MRegComp : public Matcher {
string _expr;
lexertl::state_machine _compiled; // internal: lexertl compiled regular expression
bool _compiled_used;
bool _error; // true, if any operation failed
public:
MRegComp () : _compiled_used(false), _error (false) {}
MRegComp (const string &str) :
_expr(str), _compiled_used(false), _error (false) { setup(str); }
MRegComp (const MRegComp ©) :
_expr(copy._expr), _error(false) {
if (_compiled_used) {
_compiled.clear();
_compiled_used = false;
}
}
MRegComp &operator = (const MRegComp ©) {
if (_compiled_used) _compiled.clear ();
_expr = copy._expr;
_error = false;
_compiled_used = false;
return *this;
}
void setup (const string &str);
virtual bool matches (const string &name) const;
};
class MTrue : public Matcher {
public:
virtual bool matches (const string &name) const;
};
class MStrComp : public Matcher {
string _str;
public:
MStrComp (const string &str) : _str (str) {}
virtual bool matches (const string &name) const;
};
class Name {
Matcher *_matcher; // not copied, but regenerated on demand
string _str;
void make_matcher ();
public:
Name () : _matcher (0) {}
Name (const string &s) : _matcher (0), _str (s) {}
Name (const Name ©) { *this = copy; }
Name &operator = (const Name ©) {
_matcher = 0; // regenerated on demand
_str = copy._str;
return *this;
}
~Name () { if (_matcher) delete _matcher; }
bool matches (const string &name) {
if (!_matcher)
make_matcher ();
return _matcher->matches (name);
}
Name &operator = (const string &str) {
_matcher = 0;
_str = str;
return *this;
}
string str () const { return _str; }
};
public:
enum Operator {
OP_UNDEFINED = -1, OP_ANY = 0,
OP_PLUS, OP_MINUS, OP_MUL, OP_DIV, OP_MODULO, OP_ROOF,
OP_AND, OP_OR, OP_TILDE, OP_NOT, OP_LESS, OP_GREATER,
OP_EQL, OP_GEQ, OP_LEQ, OP_NEQ, OP_AND_AND, OP_OR_OR,
OP_LSH, OP_RSH, OP_DECR, OP_INCR, OP_ASSIGN, OP_COMMA,
OP_ADD_EQ, OP_SUB_EQ, OP_MUL_EQ, OP_DIV_EQ, OP_MOD_EQ,
OP_AND_EQ, OP_IOR_EQ, OP_LSH_EQ, OP_RSH_EQ, OP_XOR_EQ,
OP_PTS_STAR, OP_PTS, OP_NEW, OP_DELETE, OP_NEW_ARRAY,
OP_DELETE_ARRAY, OP_CALL, OP_INDEX,
OP_COND, OP_DOT, OP_DOT_STAR
};
private:
vector<Name> _scopes; // scope names ('X::Y::Z::')
vector<MatchTemplateArgList*> _scope_template_args;
Name _name; // either name
MatchTemplateArgList *_name_template_args;
Operator _oper; // ... or operator name
MatchTypeRef _conv_type; // ... or conversion type id
bool oper_matches (Operator oper);
bool conv_matches (MatchTypeRef type);
bool name_matches (Name &name, MatchTemplateArgList *name_template_args);
public:
MatchName () : _name_template_args (0), _oper (OP_UNDEFINED) {}
~MatchName ();
MatchName (const MatchName ©) { *this = copy; }
MatchName &operator = (const MatchName ©);
// print the contents of this match name object
void print (ostream &) const;
// print the 'mangled' string representation of this type
void mangle (ostream &os) const;
// define a match name
void name (const string &n) {
_name = n;
}
void template_args (MatchTemplateArgList *mtal) {
_name_template_args = mtal;
}
void oper (Operator o) { _oper = o; }
void conv_type (const MatchTypeRef &ct) { _conv_type = ct; }
void add_scope (const string &s, MatchTemplateArgList *mtal = 0) {
_scopes.push_back (Name (s));
_scope_template_args.push_back (mtal);
}
// get the object contents
int scopes () const { return _scopes.size (); }
string scope (int i) const { return _scopes[i].str (); }
string name () const { return _name.str (); }
Operator oper () const { return _oper; }
MatchTypeRef conv_type () const { return _conv_type; }
bool undefined () const {
return scopes () == 0 && _name.str ().empty () &&
_oper == OP_UNDEFINED && _conv_type.is_undefined ();
}
bool scope_matches (vector<Name> &, vector<MatchTemplateArgList*> &,
int match_pos, int sig_pos);
bool matches (MatchName &match_name);
// check whether the name will match only a single entity
bool is_trivial () const;
};
inline ostream &operator << (ostream &os, const MatchName &mn) {
mn.print (os);
return os;
}
#endif // __MatchName_h__
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