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Annotation of parser3/src/types/pa_wcontext.h, revision 1.7

1.1       paf         1: /*
                      2:        Parser
                      3:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.2       paf         4:        Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.1       paf         5: 
1.7     ! paf         6:        $Id: pa_wcontext.h,v 1.6 2001/03/16 09:26:45 paf Exp $
1.1       paf         7: */
                      8: 
                      9: #ifndef PA_WCONTEXT_H
                     10: #define PA_WCONTEXT_H
                     11: 
                     12: #include "pa_value.h"
                     13: #include "pa_vstring.h"
                     14: #include "pa_vhash.h"
                     15: 
                     16: class Request;
                     17: 
                     18: class WContext : public Value {
                     19:        friend Request;
                     20: public: // Value
                     21: 
                     22:        // all: for error reporting after fail(), etc
                     23:        const char *type() const { return "wcontext"; }
                     24:        // WContext: accumulated fstring
                     25:        const String *get_string() { return &fstring; };
                     26: 
                     27:        // WContext: none yet | transparent
1.5       paf        28:        VStateless_class *get_class() { return fvalue?fvalue->get_class():0; }
1.1       paf        29:        // wcontext: transparent
                     30:        VAliased *get_aliased() { return fvalue?fvalue->get_aliased():0; }
                     31: 
                     32: public: // WContext
                     33: 
                     34:        // appends a fstring to result
                     35:        virtual void write(const String& astring, String::Untaint_lang lang);
1.6       paf        36: 
                     37:        // writes Value; raises an error if already
                     38:        virtual void write(Value& avalue);
1.1       paf        39: 
                     40:        // if value is VString writes fstring,
                     41:        // else writes Value; raises an error if already
                     42:        virtual void write(Value& avalue, String::Untaint_lang lang);
                     43: 
1.7     ! paf        44:        // retrives the resulting value
        !            45:        // that can be VString if value==0 or the Value object
        !            46:        // wmethod_frame first checks for $result and if there is one, returns it instead
        !            47:        virtual Value *result() const {
        !            48:                return fvalue?fvalue:NEW VString(fstring);
        !            49:        }
        !            50: 
1.1       paf        51: public: // usage
                     52: 
                     53:        WContext(Pool& apool, Value *avalue, bool aconstructing) : Value(apool), 
1.7     ! paf        54:                fstring(*new(apool) String(apool)),
        !            55:                fconstructing(aconstructing), fvalue(avalue),
        !            56:                fsomebody_entered_some_class(false) {
1.1       paf        57:        }
                     58: 
                     59:        bool constructing() { return fconstructing; }
1.4       paf        60:        void set_somebody_entered_some_class() { fsomebody_entered_some_class=true; }
                     61:        bool somebody_entered_some_class() { return fsomebody_entered_some_class; }
1.1       paf        62: 
                     63: protected:
1.7     ! paf        64:        String& fstring;
        !            65:        bool fconstructing;  Value *fvalue;
1.1       paf        66: private:
1.4       paf        67:        bool fsomebody_entered_some_class;
1.1       paf        68: };
                     69: 
                     70: #endif