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Annotation of parser3/src/types/pa_vmethod_frame.C, revision 1.4

1.2       paf         1: /**    @file
                      2:        Parser: method frame class.
                      3: 
                      4:        Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
                      5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\
                      6: */
                      7: 
1.4     ! paf         8: static const char * const IDENT_VSTATELESS_CLASS_C="$Date: 2003/11/20 16:34:30 $";
1.2       paf         9: 
                     10: #include "pa_vmethod_frame.h"
                     11: #include "pa_request.h"
                     12: 
                     13: // defines
                     14: 
                     15: #define RESULT_VAR_NAME "result"
                     16: 
                     17: // globals
                     18: 
                     19: const String result_var_name(RESULT_VAR_NAME);
                     20: 
                     21: // MethodParams: methods
                     22: 
                     23: Value& MethodParams::get_processed(int index, const char* msg, Request& r) {
                     24:                return r.process_to_value(as_junction(index, msg), 0/*no name*/);
                     25: }
                     26: 
                     27: // VMethodFrame: methods
                     28: 
                     29: VMethodFrame::VMethodFrame(
                     30:        const Junction& ajunction/*info: always method-junction*/,
                     31:        VMethodFrame *acaller) : 
                     32:        WContext(0/*empty*/, 0 /* no parent, junctions can be reattached only up to VMethodFrame */),
                     33: 
1.4     ! paf        34:        fcaller(acaller),
1.2       paf        35: 
                     36:        store_param_index(0),
                     37:        my(0), fnumbered_params(0),
                     38:        fself(0),
                     39: 
1.4     ! paf        40:        fresult_initial_void(0),
        !            41:        
        !            42:        junction(ajunction) {
1.2       paf        43: 
                     44:        if(junction.method->max_numbered_params_count) // this method uses numbered params?
                     45:                fnumbered_params=new MethodParams;
                     46:        else {
                     47:                my=new HashStringValue;
                     48: 
                     49:                const Method &method=*junction.method;
                     50:                if(method.locals_names) { // are there any local var names?
                     51:                        // remember them
                     52:                        // those are flags that fname is local == to be looked up in 'my'
                     53:                        for(Array_iterator<const String*> i(*method.locals_names); i.has_next(); ) {
                     54:                                // speedup: not checking for clash with "result" fname
                     55:                                const String& fname=*i.next();
                     56:                                set_my_variable(fname, *new VVoid);
                     57:                        }
                     58:                }
                     59:                { // always there is one local: $result
                     60:                        fresult_initial_void=new VVoid;
                     61:                        set_my_variable(result_var_name, *fresult_initial_void);
                     62:                }
                     63:        }
                     64: }
                     65: 
                     66: Value* VMethodFrame::get_result_variable() {
                     67:        Value* result=my?my->get(result_var_name):0;
                     68:        return result!=fresult_initial_void ? result : 0;
                     69: }