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Annotation of parser3/src/types/pa_vmethod_frame.C, revision 1.1.2.3

1.1.2.1   paf         1: /**    @file
                      2:        Parser: method frame class.
                      3: 
1.1.2.3 ! paf         4:        Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.1.2.1   paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\
                      6: */
                      7: 
1.1.2.3 ! paf         8: static const char* IDENT_VSTATELESS_CLASS_C="$Date: 2003/01/31 12:10:51 $";
1.1.2.1   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: StringPtr result_var_name(new String(RESULT_VAR_NAME));
                     20: 
                     21: // MethodParams: methods
                     22: 
1.1.2.3 ! paf        23: ValuePtr MethodParams::get_processed(int index, const char* msg, Request& r) {
1.1.2.1   paf        24:                return r.process_to_value(as_junction(index, msg), 0/*no name*/);
                     25: }
                     26: 
                     27: // VMethodFrame: methods
                     28: 
                     29: VMethodFrame::VMethodFrame(Pool& apool, 
1.1.2.2   paf        30:        StringPtr aname,
1.1.2.1   paf        31:        const Junction& ajunction/*info: always method-junction*/,
                     32:        VMethodFrame *acaller) : 
                     33:        WContext(0 /* empty */, 0 /* no parent, junctions can be reattached only up to VMethodFrame */ ),
                     34: 
                     35:        pool(apool),
                     36:        fname(aname),
                     37:        junction(ajunction),
                     38:        fcaller(acaller) {
                     39: 
                     40:        if(junction.method->max_numbered_params_count) // this method uses numbered params?
                     41:                fnumbered_params=MethodParamsPtr(new MethodParams(pool, fname));
                     42:        else {
                     43:                my=HashStringValuePtr(new HashStringValue);
                     44: 
                     45:                const Method &method=*junction.method;
                     46:                if(method.locals_names) { // are there any local var names?
                     47:                        // remember them
                     48:                        // those are flags that fname is local == to be looked up in 'my'
                     49:                        for(int i=0; i<method.locals_names->count(); i++) {
                     50:                                // speedup: not checking for clash with "result" fname
                     51:                                ValuePtr value(new VVoid);
1.1.2.2   paf        52:                                StringPtr fname=method.locals_names->get(i);
1.1.2.1   paf        53:                                set_my_variable(fname, value);
                     54:                        }
                     55:                }
                     56:                { // always there is one local: $result
                     57:                        fresult_initial_void=ValuePtr(new VVoid);
                     58:                        set_my_variable(result_var_name, fresult_initial_void);
                     59:                }
                     60:        }
                     61: }
                     62: 
                     63: ValuePtr VMethodFrame::get_result_variable() {
                     64:        ValuePtr result=my?my->get(result_var_name):ValuePtr(0);
                     65:        return result && result!=fresult_initial_void ? result : ValuePtr(0);
                     66: }