Return to pa_vobject.h CVS log

Up to [parser3project] / parser3 / src / types

Annotation of parser3/src/types/pa_vobject.h, revision 1.38.2.1

1.6       paf         1: /**    @file
1.7       paf         2:        Parser: @b object class decl.
                      3: 
1.38      paf         4:        Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com)
1.16      paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1       paf         6: */
                      7: 
                      8: #ifndef PA_VOBJECT_H
                      9: #define PA_VOBJECT_H
                     10: 
1.38.2.1! paf        11: static const char* IDENT_VOBJECT_H="$Date: 2003/01/21 15:51:20 $";
1.19      paf        12: 
1.1       paf        13: #include "pa_vjunction.h"
                     14: #include "pa_vclass.h"
1.4       paf        15: #include "pa_vstateless_object.h"
1.6       paf        16: 
1.23      paf        17: // defines
                     18: 
                     19: #define BASE_NAME "BASE"
                     20: 
1.38.2.1! paf        21: // forwards
        !            22: 
        !            23: //class VObject; DECLARE_OBJECT_PTR(VObject)
        !            24: 
1.26      paf        25: /**    parser class instance, stores 
                     26:        - class VObject::fclass;
                     27:        - fields VObject::ffields (dynamic, not static, which are stored in class).
                     28:        - links to base/derived instances [VObject::fbase, VObject::fderived]
1.6       paf        29: */
1.24      paf        30: class VObject: public VStateless_object {
1.38.2.1! paf        31: 
        !            32:        VStateless_class& fclass;
        !            33:        HashStringValue ffields;
        !            34:        VObjectPtr fderived;
        !            35:        ValuePtr fbase;
        !            36: 
1.1       paf        37: public: // Value
                     38:        
1.24      paf        39:        const char *type() const { return fclass.name_cstr(); }
1.38.2.1! paf        40:        override ValuePtr as(const char *atype, bool looking_up);
1.12      parser     41: 
1.25      paf        42:        /// VObject: fclass
1.38.2.1! paf        43:        override VStateless_class *get_class() { return &fclass; }
        !            44:        override VStateless_class *get_last_derived_class() { return get_last_derived().get_class(); }
        !            45:        override ValuePtr base() { return fbase; }
        !            46: 
        !            47:        override bool is_defined() const;
        !            48:        override ValuePtr as_expr_result(bool);
        !            49:        override int as_int() const;
        !            50:        override double as_double();
        !            51:        override bool as_bool() const;
        !            52:        override VFilePtr as_vfile(Pool& pool, String::Untaint_lang lang=String::UL_UNSPECIFIED, 
        !            53:                bool origins_mode=false);
1.33      paf        54:        
1.38.2.1! paf        55:        override HashStringValuePtr get_hash(const String *source);
        !            56:        override Table *get_table();
1.33      paf        57: 
1.38.2.1! paf        58:        override ValuePtr get_element(ConstStringPtr aname, Value& aself, bool /*looking_up*/);
        !            59:        override bool put_element(ConstStringPtr aname, ValuePtr avalue, bool replace);
1.1       paf        60: 
1.37      paf        61:        /// VObject: remember derived [the only client]
1.38.2.1! paf        62:        override VObjectPtr set_derived(VObjectPtr aderived) { 
        !            63:                VObjectPtr result=fderived;
1.25      paf        64:                fderived=aderived;
1.34      paf        65:                return result;
1.24      paf        66:        }
                     67: 
1.1       paf        68: public: // creation
                     69: 
1.38.2.1! paf        70:        VObject(Pool& apool, VStateless_class& aclass): fclass(aclass) {
        !            71:                if(VStateless_classPtr base_class=fclass.base_class()) {
        !            72:                        fbase=fclass.base_class()->create_new_value();
        !            73:                        fbase->set_derived(VObjectPtr(this));
        !            74:                }
1.1       paf        75:        }
                     76: 
                     77: private:
                     78: 
1.37      paf        79:        VObject& get_last_derived() {
                     80:                return fderived?fderived->get_last_derived():*this;
1.26      paf        81:        }
1.37      paf        82: 
1.38.2.1! paf        83:        ValuePtr stateless_object__get_element(ConstStringPtr aname, Value& aself);
1.25      paf        84: };
                     85: 
                     86: class Temp_derived {
                     87:        Value& fvalue;
1.38.2.1! paf        88:        VObjectPtr fsaved_derived;
1.25      paf        89: public:
1.38.2.1! paf        90:        Temp_derived(Value& avalue, VObjectPtr aderived) : 
1.25      paf        91:                fvalue(avalue),
                     92:                fsaved_derived(avalue.set_derived(aderived)) {}
                     93:        ~Temp_derived() { fvalue.set_derived(fsaved_derived); }
1.1       paf        94: };
                     95: 
                     96: #endif