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Annotation of parser3/src/types/pa_vvoid.h, revision 1.17.2.1

1.1       parser      1: /** @file
                      2:        Parser: @b void parser class.
                      3: 
1.17      paf         4:        Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com)
1.8       paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1       parser      6: */
                      7: 
                      8: #ifndef PA_VVOID_H
                      9: #define PA_VVOID_H
1.10      paf        10: 
1.17.2.1! paf        11: static const char* IDENT_VVOID_H="$Date: 2003/01/21 15:51:21 $";
1.1       parser     12: 
1.3       parser     13: #include "classes.h"
1.1       parser     14: #include "pa_vstateless_object.h"
                     15: #include "pa_globals.h"
                     16: 
                     17: extern Methoded *void_class;
                     18: 
                     19: /// value of type 'void'. ex: usually $sjfklsjfksjdfk has this type
                     20: class VVoid : public VStateless_object {
                     21: public: // Value
                     22: 
1.17.2.1! paf        23:        override const char *type() const { return "void"; }
        !            24:        override VStateless_class *get_class() { return void_class; }
1.1       parser     25: 
                     26:        /// VVoid: ""
1.17.2.1! paf        27:        override const String *get_string() { return NEW String(pool()); }
1.1       parser     28:        /// VVoid: false
1.17.2.1! paf        29:        override bool as_bool() const { return false; }
1.2       parser     30:        /// VVoid: false
1.17.2.1! paf        31:        override bool is_defined() const { return false; }
1.1       parser     32:        /// VVoid: 0
1.17.2.1! paf        33:        override double as_double() const { return 0; }
1.1       parser     34:        /// VVoid: 0
1.17.2.1! paf        35:        override int as_int() const { return 0; }
1.1       parser     36:        /// VVoid: this
1.17.2.1! paf        37:        override ValuePtr as_expr_result(bool return_string_as_is=false) { return this; }
1.1       parser     38: 
                     39: 
                     40:        /// VVoid: methods
1.17.2.1! paf        41:        override ValuePtr get_element(ConstStringPtr aname, Value& aself, bool looking_up) {
1.1       parser     42:                // methods
1.17.2.1! paf        43:                if(ValuePtr result=VStateless_object::get_element(aname, aself, looking_up))
1.1       parser     44:                        return result;
                     45: 
                     46:                return NEW VVoid(pool());
1.16      paf        47:        }
                     48: 
                     49:        /// VVoid: bark
1.17.2.1! paf        50:        override bool put_element(ConstStringPtr aname, ValuePtr avalue, bool areplace) { 
1.16      paf        51:                return Value::put_element(aname, avalue, areplace);
1.1       parser     52:        }
                     53: 
                     54: };
                     55: 
                     56: #endif