8 typedef struct Scope Scope;
13 #define NUMBER(G, X) atom_as_expr(create_number_atom(G, X))
14 #define STRING(G, S) atom_as_expr(create_string_atom(G, S, NULL))
15 #define SYMBOL(G, S) atom_as_expr(create_symbol_atom(G, S, NULL))
16 #define NATIVE(G, F, P) atom_as_expr(create_native_atom(G, F, P))
17 #define CONS(G, CAR, CDR) cons_as_expr(create_cons(G, CAR, CDR))
18 #define NIL(G) SYMBOL(G, "nil")
20 #define CAR(O) ((O).cons->car)
21 #define CDR(O) ((O).cons->cdr)
39 struct Expr atom_as_expr(struct Atom *atom);
40 struct Expr cons_as_expr(struct Cons *cons);
41 struct Expr void_expr(void);
43 void destroy_expr(struct Expr expr);
44 void print_expr_as_sexpr(struct Expr expr);
45 int expr_as_sexpr(struct Expr expr, char *output, size_t n);
47 // TODO(#337): EvalResult does not belong to expr unit
55 typedef struct EvalResult (*NativeFunction)(void *param, Gc *gc, struct Scope *scope, struct Expr args);
76 // TODO(#330): Atom doesn't support floats
77 long int num; // ATOM_NUMBER
78 char *sym; // ATOM_SYMBOL
79 char *str; // ATOM_STRING
80 struct Native native; // ATOM_NATIVE
84 struct Atom *create_number_atom(Gc *gc, long int num);
85 struct Atom *create_string_atom(Gc *gc, const char *str, const char *str_end);
86 struct Atom *create_symbol_atom(Gc *gc, const char *sym, const char *sym_end);
87 struct Atom *create_native_atom(Gc *gc, NativeFunction fun, void *param);
88 void destroy_atom(struct Atom *atom);
89 void print_atom_as_sexpr(struct Atom *atom);
97 struct Cons *create_cons(Gc *gc, struct Expr car, struct Expr cdr);
98 void destroy_cons(struct Cons *cons);
99 void print_cons_as_sexpr(struct Cons *cons);