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Annotation of parser3/src/types/pa_vstateless_class.C, revision 1.43

1.8       paf         1: /**    @file
                      2:        Parser: stateless class.
                      3: 
1.35      misha       4:        Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.13      paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\
1.14      paf         6: */
1.8       paf         7: 
1.43    ! misha       8: static const char * const IDENT_VSTATELESS_CLASS_C="$Date: 2009-08-08 13:30:21 $";
1.2       paf         9: 
                     10: #include "pa_vstateless_class.h"
1.29      misha      11: #include "pa_vstring.h"
1.30      misha      12: #include "pa_vbool.h"
                     13: 
1.41      misha      14: /// globals
                     15: const String class_name(CLASS_NAME), class_nametext(CLASS_NAMETEXT);
                     16: 
1.30      misha      17: override Value& VStateless_class::as_expr_result(bool /*return_string_as_is=false*/) {
1.35      misha      18:        return VBool::get(as_bool());
1.30      misha      19: }
1.17      paf        20: 
1.43    ! misha      21: /// @TODO why?! request must be different ptr from global [used in VStateless_class.set_method]
        !            22: void VStateless_class::set_method(const String& aname, Method* amethod) {
1.20      paf        23:        if(flocked)
1.31      misha      24:                throw Exception(PARSER_RUNTIME,
1.42      misha      25:                        &aname,
1.17      paf        26:                        "can not add method to system class (maybe you have forgotten .CLASS in ^process[$caller.CLASS]{...}?)");
1.20      paf        27: 
1.43    ! misha      28:        if(fderived.count()) {
        !            29:                Method *omethod=fmethods.get(aname);
        !            30:                Array_iterator<VStateless_class *> i(fderived);
        !            31:                while(i.has_next()) {
        !            32:                        VStateless_class *c=i.next();
        !            33:                        if(c->fmethods.get(aname)==omethod)
        !            34:                                c->set_method(aname, amethod);
        !            35:                }
        !            36:        }
        !            37:        fmethods.put(aname, amethod); 
1.17      paf        38: }
1.2       paf        39: 
                     40: void VStateless_class::add_native_method(
1.20      paf        41:        const char* cstr_name,
1.7       paf        42:        Method::Call_type call_type,
1.20      paf        43:        NativeCodePtr native_code,
1.38      misha      44:        int min_numbered_params_count, 
1.40      misha      45:        int max_numbered_params_count,
                     46:        Method::Call_optimization
                     47: #ifdef OPTIMIZE_CALL
                     48:                call_optimization
                     49: #endif
                     50:        ) {
1.2       paf        51: 
1.43    ! misha      52:        Method* method=new Method(
1.7       paf        53:                call_type,
1.2       paf        54:                min_numbered_params_count, max_numbered_params_count,
                     55:                0/*params_names*/, 0/*locals_names*/,
1.40      misha      56:                0/*parser_code*/, native_code, false/*all_vars_local*/
                     57: #ifdef OPTIMIZE_RESULT
                     58:                , Method::RO_USE_WCONTEXT
                     59: #endif
                     60: #ifdef OPTIMIZE_CALL
                     61:                , call_optimization
                     62: #endif
                     63:                );
1.39      misha      64: 
1.43    ! misha      65:        set_method(*new String(cstr_name), method);
1.16      paf        66: }
                     67: 
1.30      misha      68: /// VStateless_class: $CLASS, $CLASS_NAME, $method
1.42      misha      69: Value* VStateless_class::get_element(Value& aself, const String& aname) {
1.16      paf        70:        // $CLASS
1.41      misha      71:        if(aname==class_name)
1.16      paf        72:                return this;
1.36      misha      73: 
1.29      misha      74:        // $CLASS_NAME
1.41      misha      75:        if(aname==class_nametext)
1.42      misha      76:                return new VString(name());
1.36      misha      77: 
1.16      paf        78:        // $method=junction(self+class+method)
1.36      misha      79:        if(Method* method=get_method(aname)){
                     80:                if(!method->junction_template)
                     81:                        return method->junction_template=new VJunction(aself, method);
1.37      misha      82:                return method->junction_template->get(aself);
1.36      misha      83:        }
1.18      paf        84: 
1.42      misha      85:        return 0;
                     86: }
                     87: 
                     88: Value* VStateless_class::get_scalar(Value& aself){
                     89:        if(fscalar)
                     90:                return new VJunction(aself, fscalar, true /*getter*/);
1.16      paf        91:        return 0;
1.23      paf        92: }
                     93: 
1.42      misha      94: void VStateless_class::set_scalar(Method* amethod){
                     95:        fscalar=amethod;
1.2       paf        96: }
1.32      misha      97: 
                     98: Value* VStateless_class::get_default_getter(Value& aself, const String& aname){
                     99:        if(fdefault_getter)
                    100:                return new VJunction(aself, fdefault_getter, true /*getter*/, (String*)&aname);
                    101:        return 0;
                    102: }
                    103: 
                    104: void VStateless_class::set_default_getter(Method* amethod){
                    105:        fdefault_getter=amethod;
                    106: }
                    107: 
1.42      misha     108: void VStateless_class::set_base(VStateless_class* abase){
                    109:        if(abase){
                    110:                fbase=abase;
                    111:                fbase->add_derived(*this);
                    112: 
                    113:                // we assume there is no derivatives at this point
                    114:                fmethods.merge_dont_replace(abase->fmethods);
                    115: 
                    116:                if(fbase->fscalar && !fscalar)
                    117:                        fscalar=fbase->fscalar;
                    118:                if(fbase->fdefault_getter && !fdefault_getter)
                    119:                        fdefault_getter=fbase->fdefault_getter;
                    120:        }
1.33      misha     121: }
                    122: 
1.42      misha     123: void VStateless_class::add_derived(VStateless_class &aclass){
                    124:        fderived+=&aclass;
                    125:        if (fbase)
                    126:                fbase->add_derived(aclass);
1.34      misha     127: }