ADT
        ast-experimental
        enum
        pthread-emulation
        qualifiedEnum
      
      
        
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            Last change
 on this file since 437b8b5 was             90b9e4b, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago           | 
        
        
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add Simila, Python and uC++ example coroutines 
 
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            File size:
            1014 bytes
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| 1 | BEGIN
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| 2 |         CLASS Fibonacci;
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| 3 |                 HIDDEN fn, main;                                        ! private members;
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| 4 |         BEGIN
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| 5 |                 INTEGER fn;                                                     ! communication;
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| 6 | 
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| 7 |                 PROCEDURE main;                                         ! mimic uC++ coroutine main;
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| 8 |                 BEGIN
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| 9 |                         INTEGER fn1, fn2;
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| 10 | 
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| 11 |                         fn := 0; fn1 := fn;
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| 12 |                         Detach;                                                 ! suspend();
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| 13 |                         fn := 1; fn2 := fn1; fn1 := fn;
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| 14 |                         Detach;                                                 ! suspend();
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| 15 |                         WHILE TRUE DO BEGIN
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| 16 |                                 fn := fn1 + fn2; fn2 := fn1; fn1 := fn;
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| 17 |                                 Detach;                                         ! suspend();
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| 18 |                         END;
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| 19 |                 END;
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| 20 | 
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| 21 |                 INTEGER PROCEDURE next;
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| 22 |                 BEGIN
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| 23 |                         Call( THIS Fibonacci );                 ! resume();
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| 24 |                         next := fn;
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| 25 |                 END;
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| 26 |                 ! Fibonacci constructor code;
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| 27 |                 Detach;                                                         ! return to declaration;
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| 28 |                 main;                                                           ! call main as last line of constructor;
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| 29 |         END Fibonacci;
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| 30 |         ! program main equivalent;
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| 31 |         REF(Fibonacci) f1, f2;                                  ! objects are references;
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| 32 |         INTEGER i;
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| 33 | 
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| 34 |         f1 :- NEW Fibonacci;
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| 35 |         f2 :- NEW Fibonacci;
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| 36 |         FOR i := 1 STEP 1 UNTIL 10 DO BEGIN
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| 37 |                 OutInt( f1.next, 3 );
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| 38 |                 OutText( " " );
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| 39 |                 OutInt( f2.next, 3 );
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| 40 |                 OutImage;
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| 41 |         END
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| 42 | END;
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| 43 | 
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| 44 | ! Local Variables: ;
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| 45 | ! tab-width: 4 ;
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| 46 | ! compile-command: "cim Fib.sim" ;
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| 47 | ! End: ;
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