/* -*-sod-*- * * A simple SOD module for testing. */ code c : includes { #include #include "chimaera.h" } code h : includes { #include "sod.h" } [nick = nml, link = SodObject] class Animal : SodObject { int tickles = 0; [combination = progn] void tickle(); [role = before] void nml.tickle() { me->nml.tickles++; } } class Lion : Animal { void bite() { puts("Munch!"); } void nml.tickle() { Lion_bite(me); } } class Goat : Animal { void butt() { puts("Bonk!"); } void nml.tickle() { Goat_butt(me); } } class Serpent : Animal { int limit = 2; void hiss() { puts("Sssss!"); } void bite() { puts("Nom!"); } void nml.tickle() { if (SERPENT__CONV_NML(me)->nml.tickles <= me->serpent.limit) Serpent_hiss(me); else Serpent_bite(me); } } [nick = sir, link = Animal] class Chimaera : Lion, Goat, Serpent { serpent.limit = 1; } code c : user { /*----- Main driver code --------------------------------------------------*/ static void tickle_animal(Animal *a) { int i; for (i = 0; i < 3; i++) { printf("tickle %s #%d...\n", a->_vt->_class->cls.name, i); Animal_tickle(a); } } static void provoke_lion(Lion *l) { printf("provoking %s as a lion\n", l->_vt->_class->cls.name); Lion_bite(l); } static void provoke_goat(Goat *g) { printf("provoking %s as a goat\n", g->_vt->_class->cls.name); Goat_butt(g); } static void provoke_serpent(Serpent *s) { printf("provoking %s as a serpent\n", s->_vt->_class->cls.name); Serpent_bite(s); } int main(void) { { SOD_DECL(Lion, l, NO_KWARGS); provoke_lion(l); tickle_animal(LION__CONV_NML(l)); } { SOD_DECL(Goat, g, NO_KWARGS); provoke_goat(g); tickle_animal(GOAT__CONV_NML(g)); } { SOD_DECL(Serpent, s, NO_KWARGS); provoke_serpent(s); tickle_animal(SERPENT__CONV_NML(s)); } { SOD_DECL(Chimaera, c, NO_KWARGS); provoke_lion(CHIMAERA__CONV_LION(c)); provoke_goat(CHIMAERA__CONV_GOAT(c)); provoke_serpent(CHIMAERA__CONV_SERPENT(c)); tickle_animal(CHIMAERA__CONV_NML(c)); } return (0); } }