mdw@git.distorted.org.uk Git - sod/blob - test/chimaera.sod

   1 /* -*-sod-*-
   2  *
   3  * A simple SOD module for testing.
   4  */
   5
   6 code c: includes {
   7 #include <stdio.h>
   8 #include "chimaera.h"
   9 }
  10
  11 code h: includes {
  12 #include "sod.h"
  13 }
  14
  15 [nick = nml, link = SodObject]
  16 class Animal: SodObject {
  17   int tickles = 0;
  18
  19   [combination = progn] void tickle();
  20   [role = before] void nml.tickle() { me->nml.tickles++; }
  21 }
  22
  23 class Lion: Animal {
  24   void bite() { puts("Munch!"); }
  25   void nml.tickle() { Lion_bite(me); }
  26 }
  27
  28 class Goat: Animal {
  29   void butt() { puts("Bonk!"); }
  30   void nml.tickle() { Goat_butt(me); }
  31 }
  32
  33 class Serpent: Animal {
  34   int limit = 2;
  35
  36   void hiss() { puts("Sssss!"); }
  37   void bite() { puts("Nom!"); }
  38   void nml.tickle() {
  39     if (SERPENT__CONV_NML(me)->nml.tickles <= me->serpent.limit)
  40       Serpent_hiss(me);
  41     else
  42       Serpent_bite(me);
  43   }
  44 }
  45
  46 [nick = sir, link = Animal]
  47 class Chimaera: Lion, Goat, Serpent {
  48   serpent.limit = 1;
  49 }
  50
  51 code c: user {
  52 /*----- Main driver code --------------------------------------------------*/
  53
  54 static void tickle_animal(Animal *a)
  55 {
  56   int i;
  57
  58   for (i = 0; i < 3; i++) {
  59     printf("tickle %s #%d...\n", a->_vt->_class->cls.name, i);
  60     Animal_tickle(a);
  61   }
  62 }
  63
  64 static void provoke_lion(Lion *l)
  65 {
  66   printf("provoking %s as a lion\n", l->_vt->_class->cls.name);
  67   Lion_bite(l);
  68 }
  69
  70 static void provoke_goat(Goat *g)
  71 {
  72   printf("provoking %s as a goat\n", g->_vt->_class->cls.name);
  73   Goat_butt(g);
  74 }
  75
  76 static void provoke_serpent(Serpent *s)
  77 {
  78   printf("provoking %s as a serpent\n", s->_vt->_class->cls.name);
  79   Serpent_bite(s);
  80 }
  81
  82 int main(void)
  83 {
  84   {
  85     SOD_DECL(Lion, l, NO_KWARGS);
  86     provoke_lion(l);
  87     tickle_animal(LION__CONV_NML(l));
  88   }
  89
  90   {
  91     SOD_DECL(Goat, g, NO_KWARGS);
  92     provoke_goat(g);
  93     tickle_animal(GOAT__CONV_NML(g));
  94   }
  95
  96   {
  97     SOD_DECL(Serpent, s, NO_KWARGS);
  98     provoke_serpent(s);
  99     tickle_animal(SERPENT__CONV_NML(s));
 100   }
 101
 102   {
 103     SOD_DECL(Chimaera, c, NO_KWARGS);
 104     provoke_lion(CHIMAERA__CONV_LION(c));
 105     provoke_goat(CHIMAERA__CONV_GOAT(c));
 106     provoke_serpent(CHIMAERA__CONV_SERPENT(c));
 107     tickle_animal(CHIMAERA__CONV_NML(c));
 108   }
 109
 110   return (0);
 111 }
 112
 113 }