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https://github.com/KevinMidboe/linguist.git
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103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
#ifndef BOOTSTRAP_H
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#define BOOTSTRAP_H
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#include <stdio.h>
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#include "cxrs.h"
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/* If we're not using GNU C, elide __attribute__ */
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#ifndef __GNUC__
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# define __attribute__(x) /*NOTHING*/
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#endif
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typedef struct object object;
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object *true;
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object *false;
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object *eof;
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object *empty_list;
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object *global_enviroment;
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enum obj_type {
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scm_bool,
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scm_empty_list,
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scm_eof,
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scm_char,
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scm_int,
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scm_pair,
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scm_symbol,
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scm_prim_fun,
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scm_lambda,
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scm_str,
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scm_file
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};
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typedef object *(*prim_proc)(object *args);
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object *read(FILE *in);
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object *eval(object *code, object *env);
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void print(FILE *out, object *obj, int display);
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int check_type(enum obj_type type, object *obj, int err_on_false);
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static inline int is_true(object *obj)
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{
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return obj != false;
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}
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object *make_int(int value);
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int obj2int(object *i);
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object *make_bool(int value);
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int obj2bool(object *b);
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object *make_char(char c);
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char obj2char(object *ch);
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object *make_str(char *str);
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char *obj2str(object *str);
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object *cons(object *car, object *cdr);
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object *car(object *pair);
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object *cdr(object *pair);
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void set_car(object *pair, object *new);
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void set_cdr(object *pair, object *new);
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object *make_symbol(char *name);
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char *sym2str(object *sym);
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object *get_symbol(char *name) __attribute__((pure));
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object *make_prim_fun(prim_proc fun);
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prim_proc obj2prim_proc(object *proc);
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object *make_lambda(object *args, object *code, object *env);
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object *lambda_code(object *lambda);
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object *lambda_args(object *lambda);
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object *make_port(FILE *handle, int direction);
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int port_direction(object *port);
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FILE *port_handle(object *port);
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void set_port_handle_to_null(object *port);
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/*both of these should never be called*/
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object *apply_proc(object *);
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object *eval_proc(object *);
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object *maybe_add_begin(object *code);
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void init_enviroment(object *env);
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void eval_err(char *msg, object *code) __attribute__((noreturn));
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void define_var(object *var, object *val, object *env);
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void set_var(object *var, object *val, object *env);
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object *get_var(object *var, object *env);
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object *cond2nested_if(object *cond);
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object *let2lambda(object *let);
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object *and2nested_if(object *and);
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object *or2nested_if(object *or);
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#endif /*include guard*/
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