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) atom_as_expr(create_native_atom(G, F))
17 #define CONS(G, CAR, CDR) cons_as_expr(create_cons(G, CAR, CDR))
18 #define NIL(G) SYMBOL(G, "nil")
36 struct Expr atom_as_expr(struct Atom *atom);
37 struct Expr cons_as_expr(struct Cons *cons);
38 struct Expr void_expr(void);
40 void destroy_expr(struct Expr expr);
41 void print_expr_as_sexpr(struct Expr expr);
43 // TODO(#337): EvalResult does not belong to expr unit
50 typedef struct EvalResult (*NativeFunction)(Gc *gc, struct Scope *scope, struct Expr args);
65 // TODO(#330): Atom doesn't support floats
66 long int num; // ATOM_NUMBER
67 char *sym; // ATOM_SYMBOL
68 char *str; // ATOM_STRING
69 NativeFunction fun; // ATOM_NATIVE
73 struct Atom *create_number_atom(Gc *gc, long int num);
74 struct Atom *create_string_atom(Gc *gc, const char *str, const char *str_end);
75 struct Atom *create_symbol_atom(Gc *gc, const char *sym, const char *sym_end);
76 struct Atom *create_native_atom(Gc *gc, NativeFunction fun);
77 void destroy_atom(struct Atom *atom);
78 void print_atom_as_sexpr(struct Atom *atom);
86 struct Cons *create_cons(Gc *gc, struct Expr car, struct Expr cdr);
87 void destroy_cons(struct Cons *cons);
88 void print_cons_as_sexpr(struct Cons *cons);