58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
#include "dat.h"
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#include "fn.h"
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Object Nil = (Object){.type=OSYMBOL, .sym="nil"};
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Object Minus= (Object){.type=OBLTIN, .sym="-"};
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Object Plus = (Object){.type=OBLTIN, .sym="+"};
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Object Lambda= (Object){.type=OBLTIN, .sym="lambda"};
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Object Car = (Object){.type=OBLTIN, .sym="car"};
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Object Cdr = (Object){.type=OBLTIN, .sym="cdr"};
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Object Quote= (Object){.type=OBLTIN, .sym="'"};
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Object Cons = (Object){.type=OBLTIN, .sym="cons"};
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Object Define= (Object){.type=OBLTIN, .sym="define"};
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Object Setq = (Object){.type=OBLTIN, .sym="setq"};
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Object Eq = (Object){.type=OBLTIN, .sym="eq"};
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Object If = (Object){.type=OBLTIN, .sym="if"};
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extern Object* fnplus(Object *, Object *);
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extern Object* fnlambda(Object *, Object *);
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extern Object* fndefine(Object *, Object *);
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extern Object* fnsetq(Object *, Object *);
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extern Object* fnundef(Object *, Object *);
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extern Object* fnquote(Object *, Object *);
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extern Object* fncar(Object *, Object *);
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extern Object* fncdr(Object *, Object *);
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extern Object* fncons(Object *, Object *);
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extern Object* fneq(Object *, Object *);
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extern Object* fnif(Object *, Object *);
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/*extern Object* fnminus(Object *, Object *);*/
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Bltinfn
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bltinlookup(Object *obj)
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{
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static struct
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{
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Object *sym;
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Bltinfn fn;
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}bltins[] = {
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{&Lambda , fnlambda},
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{&Plus , fnplus},
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{&Define ,fndefine},
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{&Setq ,fnsetq},
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{&Quote ,fnquote},
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{&Car ,fncar},
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{&Cdr ,fncdr},
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{&Cons ,fncons},
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{&Eq, fneq},
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{&If, fnif},
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{&Minus ,0},
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{0},
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};
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for(int i = 0; bltins[i].sym; ++i){
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if(obj == bltins[i].sym)
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return bltins[i].fn;
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}
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return 0;
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}
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