+++ /dev/null
-/*
- * Copyright © 2016 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#ifndef _AO_SCHEME_H_
-#define _AO_SCHEME_H_
-
-#ifndef DBG_MEM
-#define DBG_MEM 0
-#endif
-#ifndef DBG_EVAL
-#define DBG_EVAL 0
-#endif
-#ifndef DBG_READ
-#define DBG_READ 0
-#endif
-#ifndef DBG_FREE_CONS
-#define DBG_FREE_CONS 0
-#endif
-#define NDEBUG 1
-
-#include <stdint.h>
-#include <string.h>
-#include <stdbool.h>
-#define AO_SCHEME_BUILTIN_FEATURES
-#include "ao_scheme_builtin.h"
-#undef AO_SCHEME_BUILTIN_FEATURES
-#include <ao_scheme_os.h>
-#ifndef __BYTE_ORDER
-#include <endian.h>
-#endif
-
-typedef uint16_t ao_poly;
-typedef int16_t ao_signed_poly;
-
-#if AO_SCHEME_SAVE
-
-struct ao_scheme_os_save {
- ao_poly atoms;
- ao_poly globals;
- uint16_t const_checksum;
- uint16_t const_checksum_inv;
-};
-
-#ifndef AO_SCHEME_POOL_TOTAL
-#error Must define AO_SCHEME_POOL_TOTAL for AO_SCHEME_SAVE
-#endif
-
-#define AO_SCHEME_POOL_EXTRA (sizeof(struct ao_scheme_os_save))
-#define AO_SCHEME_POOL ((int) (AO_SCHEME_POOL_TOTAL - AO_SCHEME_POOL_EXTRA))
-
-int
-ao_scheme_os_save(void);
-
-int
-ao_scheme_os_restore_save(struct ao_scheme_os_save *save, int offset);
-
-int
-ao_scheme_os_restore(void);
-
-#endif
-
-#ifdef AO_SCHEME_MAKE_CONST
-#define AO_SCHEME_POOL_CONST 16384
-extern uint8_t ao_scheme_const[AO_SCHEME_POOL_CONST] __attribute__((aligned(4)));
-#define ao_scheme_pool ao_scheme_const
-#define AO_SCHEME_POOL AO_SCHEME_POOL_CONST
-
-#define _atom(n) ao_scheme_atom_poly(ao_scheme_atom_intern((char *) n))
-#define _bool(v) ao_scheme_bool_poly(ao_scheme_bool_get(v))
-
-#define _ao_scheme_bool_true _bool(1)
-#define _ao_scheme_bool_false _bool(0)
-
-#define _ao_scheme_atom_eof _atom("eof")
-#define _ao_scheme_atom_else _atom("else")
-
-#define AO_SCHEME_BUILTIN_ATOMS
-#include "ao_scheme_builtin.h"
-
-#else
-#include "ao_scheme_const.h"
-#ifndef AO_SCHEME_POOL
-#error Must define AO_SCHEME_POOL
-#endif
-#ifndef AO_SCHEME_POOL_EXTRA
-#define AO_SCHEME_POOL_EXTRA 0
-#endif
-extern uint8_t ao_scheme_pool[AO_SCHEME_POOL + AO_SCHEME_POOL_EXTRA] __attribute__((aligned(4)));
-#endif
-
-/* Primitive types */
-#define AO_SCHEME_CONS 0
-#define AO_SCHEME_INT 1
-#define AO_SCHEME_BIGINT 2
-#define AO_SCHEME_OTHER 3
-
-#define AO_SCHEME_TYPE_MASK 0x0003
-#define AO_SCHEME_TYPE_SHIFT 2
-#define AO_SCHEME_REF_MASK 0x7ffc
-#define AO_SCHEME_CONST 0x8000
-
-/* These have a type value at the start of the struct */
-#define AO_SCHEME_ATOM 4
-#define AO_SCHEME_BUILTIN 5
-#define AO_SCHEME_FRAME 6
-#define AO_SCHEME_FRAME_VALS 7
-#define AO_SCHEME_LAMBDA 8
-#define AO_SCHEME_STACK 9
-#define AO_SCHEME_BOOL 10
-#define AO_SCHEME_STRING 11
-#ifdef AO_SCHEME_FEATURE_FLOAT
-#define AO_SCHEME_FLOAT 12
-#define _AO_SCHEME_FLOAT AO_SCHEME_FLOAT
-#else
-#define _AO_SCHEME_FLOAT 12
-#endif
-#ifdef AO_SCHEME_FEATURE_VECTOR
-#define AO_SCHEME_VECTOR 13
-#define _AO_SCHEME_VECTOR AO_SCHEME_VECTOR
-#else
-#define _AO_SCHEME_VECTOR _AO_SCHEME_FLOAT
-#endif
-#define AO_SCHEME_NUM_TYPE (_AO_SCHEME_VECTOR+1)
-
-/* Leave two bits for types to use as they please */
-#define AO_SCHEME_OTHER_TYPE_MASK 0x3f
-
-#define AO_SCHEME_NIL 0
-
-extern uint16_t ao_scheme_top;
-
-#define AO_SCHEME_OOM 0x01
-#define AO_SCHEME_DIVIDE_BY_ZERO 0x02
-#define AO_SCHEME_INVALID 0x04
-#define AO_SCHEME_UNDEFINED 0x08
-#define AO_SCHEME_REDEFINED 0x10
-#define AO_SCHEME_EOF 0x20
-#define AO_SCHEME_EXIT 0x40
-
-extern uint8_t ao_scheme_exception;
-
-static inline int
-ao_scheme_is_const(ao_poly poly) {
- return poly & AO_SCHEME_CONST;
-}
-
-static inline int
-ao_scheme_is_const_addr(const void *addr) {
- const uint8_t *a = addr;
- return (ao_scheme_const <= a) && (a < ao_scheme_const + AO_SCHEME_POOL_CONST);
-}
-
-static inline int
-ao_scheme_is_pool_addr(const void *addr) {
- const uint8_t *a = addr;
- return (ao_scheme_pool <= a) && (a < ao_scheme_pool + AO_SCHEME_POOL);
-}
-
-void *
-ao_scheme_ref(ao_poly poly);
-
-ao_poly
-ao_scheme_poly(const void *addr, ao_poly type);
-
-struct ao_scheme_type {
- int (*size)(void *addr);
- void (*mark)(void *addr);
- void (*move)(void *addr);
- char name[];
-};
-
-struct ao_scheme_cons {
- ao_poly car;
- ao_poly cdr;
-};
-
-struct ao_scheme_atom {
- uint8_t type;
- uint8_t pad[1];
- ao_poly next;
- char name[];
-};
-
-struct ao_scheme_string {
- uint8_t type;
- char val[];
-};
-
-struct ao_scheme_val {
- ao_poly atom;
- ao_poly val;
-};
-
-struct ao_scheme_frame_vals {
- uint8_t type;
- uint8_t size;
- struct ao_scheme_val vals[];
-};
-
-struct ao_scheme_frame {
- uint8_t type;
- uint8_t num;
- ao_poly prev;
- ao_poly vals;
-};
-
-struct ao_scheme_bool {
- uint8_t type;
- uint8_t value;
- uint16_t pad;
-};
-
-
-#ifdef AO_SCHEME_FEATURE_FLOAT
-struct ao_scheme_float {
- uint8_t type;
- uint8_t pad1;
- uint16_t pad2;
- float value;
-};
-#endif
-
-#ifdef AO_SCHEME_FEATURE_VECTOR
-struct ao_scheme_vector {
- uint8_t type;
- uint8_t pad1;
- uint16_t length;
- ao_poly vals[];
-};
-#endif
-
-#define AO_SCHEME_MIN_INT (-(1 << (15 - AO_SCHEME_TYPE_SHIFT)))
-#define AO_SCHEME_MAX_INT ((1 << (15 - AO_SCHEME_TYPE_SHIFT)) - 1)
-
-#ifdef AO_SCHEME_FEATURE_BIGINT
-
-struct ao_scheme_bigint {
- uint32_t value;
-};
-
-#define AO_SCHEME_MIN_BIGINT INT32_MIN
-#define AO_SCHEME_MAX_BIGINT INT32_MAX
-
-#endif /* AO_SCHEME_FEATURE_BIGINT */
-
-/* Set on type when the frame escapes the lambda */
-#define AO_SCHEME_FRAME_MARK 0x80
-
-static inline int ao_scheme_frame_marked(struct ao_scheme_frame *f) {
- return f->type & AO_SCHEME_FRAME_MARK;
-}
-
-static inline struct ao_scheme_frame *
-ao_scheme_poly_frame(ao_poly poly) {
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_frame_poly(struct ao_scheme_frame *frame) {
- return ao_scheme_poly(frame, AO_SCHEME_OTHER);
-}
-
-static inline struct ao_scheme_frame_vals *
-ao_scheme_poly_frame_vals(ao_poly poly) {
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_frame_vals_poly(struct ao_scheme_frame_vals *vals) {
- return ao_scheme_poly(vals, AO_SCHEME_OTHER);
-}
-
-enum eval_state {
- eval_sexpr, /* Evaluate an sexpr */
- eval_val, /* Value computed */
- eval_formal, /* Formal computed */
- eval_exec, /* Start a lambda evaluation */
- eval_apply, /* Execute apply */
- eval_cond, /* Start next cond clause */
- eval_cond_test, /* Check cond condition */
- eval_begin, /* Start next begin entry */
- eval_while, /* Start while condition */
- eval_while_test, /* Check while condition */
- eval_macro, /* Finished with macro generation */
-};
-
-struct ao_scheme_stack {
- uint8_t type; /* AO_SCHEME_STACK */
- uint8_t state; /* enum eval_state */
- ao_poly prev; /* previous stack frame */
- ao_poly sexprs; /* expressions to evaluate */
- ao_poly values; /* values computed */
- ao_poly values_tail; /* end of the values list for easy appending */
- ao_poly frame; /* current lookup frame */
- ao_poly list; /* most recent function call */
-};
-
-#define AO_SCHEME_STACK_MARK 0x80 /* set on type when a reference has been taken */
-
-static inline int ao_scheme_stack_marked(struct ao_scheme_stack *s) {
- return s->type & AO_SCHEME_STACK_MARK;
-}
-
-static inline void ao_scheme_stack_mark(struct ao_scheme_stack *s) {
- s->type |= AO_SCHEME_STACK_MARK;
-}
-
-static inline struct ao_scheme_stack *
-ao_scheme_poly_stack(ao_poly p)
-{
- return ao_scheme_ref(p);
-}
-
-static inline ao_poly
-ao_scheme_stack_poly(struct ao_scheme_stack *stack)
-{
- return ao_scheme_poly(stack, AO_SCHEME_OTHER);
-}
-
-extern ao_poly ao_scheme_v;
-
-#define AO_SCHEME_FUNC_LAMBDA 0
-#define AO_SCHEME_FUNC_NLAMBDA 1
-#define AO_SCHEME_FUNC_MACRO 2
-
-#define AO_SCHEME_FUNC_FREE_ARGS 0x80
-#define AO_SCHEME_FUNC_MASK 0x7f
-
-#define AO_SCHEME_FUNC_F_LAMBDA (AO_SCHEME_FUNC_FREE_ARGS | AO_SCHEME_FUNC_LAMBDA)
-#define AO_SCHEME_FUNC_F_NLAMBDA (AO_SCHEME_FUNC_FREE_ARGS | AO_SCHEME_FUNC_NLAMBDA)
-#define AO_SCHEME_FUNC_F_MACRO (AO_SCHEME_FUNC_FREE_ARGS | AO_SCHEME_FUNC_MACRO)
-
-struct ao_scheme_builtin {
- uint8_t type;
- uint8_t args;
- uint16_t func;
-};
-
-#define AO_SCHEME_BUILTIN_ID
-#include "ao_scheme_builtin.h"
-
-typedef ao_poly (*ao_scheme_func_t)(struct ao_scheme_cons *cons);
-
-extern const ao_scheme_func_t ao_scheme_builtins[];
-
-static inline ao_scheme_func_t
-ao_scheme_func(struct ao_scheme_builtin *b)
-{
- return ao_scheme_builtins[b->func];
-}
-
-struct ao_scheme_lambda {
- uint8_t type;
- uint8_t args;
- ao_poly code;
- ao_poly frame;
-};
-
-static inline struct ao_scheme_lambda *
-ao_scheme_poly_lambda(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_lambda_poly(struct ao_scheme_lambda *lambda)
-{
- return ao_scheme_poly(lambda, AO_SCHEME_OTHER);
-}
-
-static inline void *
-ao_scheme_poly_other(ao_poly poly) {
- return ao_scheme_ref(poly);
-}
-
-static inline uint8_t
-ao_scheme_other_type(void *other) {
-#if DBG_MEM
- if ((*((uint8_t *) other) & AO_SCHEME_OTHER_TYPE_MASK) >= AO_SCHEME_NUM_TYPE)
- ao_scheme_abort();
-#endif
- return *((uint8_t *) other) & AO_SCHEME_OTHER_TYPE_MASK;
-}
-
-static inline ao_poly
-ao_scheme_other_poly(const void *other)
-{
- return ao_scheme_poly(other, AO_SCHEME_OTHER);
-}
-
-static inline int
-ao_scheme_size_round(int size)
-{
- return (size + 3) & ~3;
-}
-
-static inline int
-ao_scheme_size(const struct ao_scheme_type *type, void *addr)
-{
- return ao_scheme_size_round(type->size(addr));
-}
-
-#define AO_SCHEME_OTHER_POLY(other) ((ao_poly)(other) + AO_SCHEME_OTHER)
-
-static inline int ao_scheme_poly_base_type(ao_poly poly) {
- return poly & AO_SCHEME_TYPE_MASK;
-}
-
-static inline int ao_scheme_poly_type(ao_poly poly) {
- int type = poly & AO_SCHEME_TYPE_MASK;
- if (type == AO_SCHEME_OTHER)
- return ao_scheme_other_type(ao_scheme_poly_other(poly));
- return type;
-}
-
-static inline int
-ao_scheme_is_cons(ao_poly poly) {
- return (ao_scheme_poly_base_type(poly) == AO_SCHEME_CONS);
-}
-
-static inline int
-ao_scheme_is_pair(ao_poly poly) {
- return poly != AO_SCHEME_NIL && (ao_scheme_poly_base_type(poly) == AO_SCHEME_CONS);
-}
-
-static inline struct ao_scheme_cons *
-ao_scheme_poly_cons(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_cons_poly(struct ao_scheme_cons *cons)
-{
- return ao_scheme_poly(cons, AO_SCHEME_CONS);
-}
-
-static inline int32_t
-ao_scheme_poly_int(ao_poly poly)
-{
- return (int32_t) ((ao_signed_poly) poly >> AO_SCHEME_TYPE_SHIFT);
-}
-
-static inline ao_poly
-ao_scheme_int_poly(int32_t i)
-{
- return ((ao_poly) i << 2) | AO_SCHEME_INT;
-}
-
-#ifdef AO_SCHEME_FEATURE_BIGINT
-static inline struct ao_scheme_bigint *
-ao_scheme_poly_bigint(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_bigint_poly(struct ao_scheme_bigint *bi)
-{
- return ao_scheme_poly(bi, AO_SCHEME_BIGINT);
-}
-#endif /* AO_SCHEME_FEATURE_BIGINT */
-
-static inline struct ao_scheme_string *
-ao_scheme_poly_string(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_string_poly(struct ao_scheme_string *s)
-{
- return ao_scheme_poly(s, AO_SCHEME_OTHER);
-}
-
-static inline struct ao_scheme_atom *
-ao_scheme_poly_atom(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_atom_poly(struct ao_scheme_atom *a)
-{
- return ao_scheme_poly(a, AO_SCHEME_OTHER);
-}
-
-static inline struct ao_scheme_builtin *
-ao_scheme_poly_builtin(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-static inline ao_poly
-ao_scheme_builtin_poly(struct ao_scheme_builtin *b)
-{
- return ao_scheme_poly(b, AO_SCHEME_OTHER);
-}
-
-static inline ao_poly
-ao_scheme_bool_poly(struct ao_scheme_bool *b)
-{
- return ao_scheme_poly(b, AO_SCHEME_OTHER);
-}
-
-static inline struct ao_scheme_bool *
-ao_scheme_poly_bool(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-#ifdef AO_SCHEME_FEATURE_FLOAT
-static inline ao_poly
-ao_scheme_float_poly(struct ao_scheme_float *f)
-{
- return ao_scheme_poly(f, AO_SCHEME_OTHER);
-}
-
-static inline struct ao_scheme_float *
-ao_scheme_poly_float(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-
-float
-ao_scheme_poly_number(ao_poly p);
-#endif
-
-#ifdef AO_SCHEME_FEATURE_VECTOR
-static inline ao_poly
-ao_scheme_vector_poly(struct ao_scheme_vector *v)
-{
- return ao_scheme_poly(v, AO_SCHEME_OTHER);
-}
-
-static inline struct ao_scheme_vector *
-ao_scheme_poly_vector(ao_poly poly)
-{
- return ao_scheme_ref(poly);
-}
-#endif
-
-/* memory functions */
-
-extern uint64_t ao_scheme_collects[2];
-extern uint64_t ao_scheme_freed[2];
-extern uint64_t ao_scheme_loops[2];
-
-/* returns 1 if the object was already marked */
-int
-ao_scheme_mark_memory(const struct ao_scheme_type *type, void *addr);
-
-/* returns 1 if the object was already moved */
-int
-ao_scheme_move_memory(const struct ao_scheme_type *type, void **ref);
-
-void *
-ao_scheme_alloc(int size);
-
-/* Marks an object as being printed, returns 1 if it was already marked */
-int
-ao_scheme_print_mark_addr(void *addr);
-
-void
-ao_scheme_print_clear_addr(void *addr);
-
-/* Notes that printing has started */
-void
-ao_scheme_print_start(void);
-
-/* Notes that printing has ended, returns 1 if printing is still happening */
-int
-ao_scheme_print_stop(void);
-
-#define AO_SCHEME_COLLECT_FULL 1
-#define AO_SCHEME_COLLECT_INCREMENTAL 0
-
-int
-ao_scheme_collect(uint8_t style);
-
-#if DBG_FREE_CONS
-void
-ao_scheme_cons_check(struct ao_scheme_cons *cons);
-#endif
-
-void
-ao_scheme_poly_stash(ao_poly poly);
-
-ao_poly
-ao_scheme_poly_fetch(void);
-
-static inline void
-ao_scheme_cons_stash(struct ao_scheme_cons *cons) {
- ao_scheme_poly_stash(ao_scheme_cons_poly(cons));
-}
-
-static inline struct ao_scheme_cons *
-ao_scheme_cons_fetch(void) {
- return ao_scheme_poly_cons(ao_scheme_poly_fetch());
-}
-
-static inline void
-ao_scheme_atom_stash(struct ao_scheme_atom *atom) {
- ao_scheme_poly_stash(ao_scheme_atom_poly(atom));
-}
-
-static inline struct ao_scheme_atom *
-ao_scheme_atom_fetch(void) {
- return ao_scheme_poly_atom(ao_scheme_poly_fetch());
-}
-
-static inline void
-ao_scheme_string_stash(struct ao_scheme_string *string) {
- ao_scheme_poly_stash(ao_scheme_string_poly(string));
-}
-
-static inline struct ao_scheme_string *
-ao_scheme_string_fetch(void) {
- return ao_scheme_poly_string(ao_scheme_poly_fetch());
-}
-
-#ifdef AO_SCHEME_FEATURE_VECTOR
-static inline void
-ao_scheme_vector_stash(struct ao_scheme_vector *vector) {
- ao_scheme_poly_stash(ao_scheme_vector_poly(vector));
-}
-
-static inline struct ao_scheme_vector *
-ao_scheme_vector_fetch(void) {
- return ao_scheme_poly_vector(ao_scheme_poly_fetch());
-}
-#endif
-
-static inline void
-ao_scheme_stack_stash(struct ao_scheme_stack *stack) {
- ao_scheme_poly_stash(ao_scheme_stack_poly(stack));
-}
-
-static inline struct ao_scheme_stack *
-ao_scheme_stack_fetch(void) {
- return ao_scheme_poly_stack(ao_scheme_poly_fetch());
-}
-
-static inline void
-ao_scheme_frame_stash(struct ao_scheme_frame *frame) {
- ao_scheme_poly_stash(ao_scheme_frame_poly(frame));
-}
-
-static inline struct ao_scheme_frame *
-ao_scheme_frame_fetch(void) {
- return ao_scheme_poly_frame(ao_scheme_poly_fetch());
-}
-
-/* bool */
-
-extern const struct ao_scheme_type ao_scheme_bool_type;
-
-void
-ao_scheme_bool_write(ao_poly v, bool write);
-
-#ifdef AO_SCHEME_MAKE_CONST
-extern struct ao_scheme_bool *ao_scheme_true, *ao_scheme_false;
-
-struct ao_scheme_bool *
-ao_scheme_bool_get(uint8_t value);
-#endif
-
-/* cons */
-extern const struct ao_scheme_type ao_scheme_cons_type;
-
-struct ao_scheme_cons *
-ao_scheme_cons_cons(ao_poly car, ao_poly cdr);
-
-/* Return a cons or NULL for a proper list, else error */
-struct ao_scheme_cons *
-ao_scheme_cons_cdr(struct ao_scheme_cons *cons);
-
-ao_poly
-ao_scheme_cons(ao_poly car, ao_poly cdr);
-
-extern struct ao_scheme_cons *ao_scheme_cons_free_list;
-
-void
-ao_scheme_cons_free(struct ao_scheme_cons *cons);
-
-void
-ao_scheme_cons_write(ao_poly, bool write);
-
-int
-ao_scheme_cons_length(struct ao_scheme_cons *cons);
-
-struct ao_scheme_cons *
-ao_scheme_cons_copy(struct ao_scheme_cons *cons);
-
-/* string */
-extern const struct ao_scheme_type ao_scheme_string_type;
-
-struct ao_scheme_string *
-ao_scheme_string_copy(struct ao_scheme_string *a);
-
-struct ao_scheme_string *
-ao_scheme_string_make(char *a);
-
-struct ao_scheme_string *
-ao_scheme_atom_to_string(struct ao_scheme_atom *a);
-
-struct ao_scheme_string *
-ao_scheme_string_cat(struct ao_scheme_string *a, struct ao_scheme_string *b);
-
-ao_poly
-ao_scheme_string_pack(struct ao_scheme_cons *cons);
-
-ao_poly
-ao_scheme_string_unpack(struct ao_scheme_string *a);
-
-void
-ao_scheme_string_write(ao_poly s, bool write);
-
-/* atom */
-extern const struct ao_scheme_type ao_scheme_atom_type;
-
-extern struct ao_scheme_atom *ao_scheme_atoms;
-extern struct ao_scheme_frame *ao_scheme_frame_global;
-extern struct ao_scheme_frame *ao_scheme_frame_current;
-
-void
-ao_scheme_atom_write(ao_poly a, bool write);
-
-struct ao_scheme_atom *
-ao_scheme_string_to_atom(struct ao_scheme_string *string);
-
-struct ao_scheme_atom *
-ao_scheme_atom_intern(char *name);
-
-ao_poly *
-ao_scheme_atom_ref(ao_poly atom, struct ao_scheme_frame **frame_ref);
-
-ao_poly
-ao_scheme_atom_get(ao_poly atom);
-
-ao_poly
-ao_scheme_atom_set(ao_poly atom, ao_poly val);
-
-ao_poly
-ao_scheme_atom_def(ao_poly atom, ao_poly val);
-
-/* int */
-void
-ao_scheme_int_write(ao_poly i, bool write);
-
-#ifdef AO_SCHEME_FEATURE_BIGINT
-int32_t
-ao_scheme_poly_integer(ao_poly p, bool *fail);
-
-ao_poly
-ao_scheme_integer_poly(int32_t i);
-
-static inline int
-ao_scheme_integer_typep(uint8_t t)
-{
- return (t == AO_SCHEME_INT) || (t == AO_SCHEME_BIGINT);
-}
-
-void
-ao_scheme_bigint_write(ao_poly i, bool write);
-
-extern const struct ao_scheme_type ao_scheme_bigint_type;
-
-#else
-
-#define ao_scheme_poly_integer(a,b) ao_scheme_poly_int(a)
-#define ao_scheme_integer_poly ao_scheme_int_poly
-
-static inline int
-ao_scheme_integer_typep(uint8_t t)
-{
- return (t == AO_SCHEME_INT);
-}
-
-#endif /* AO_SCHEME_FEATURE_BIGINT */
-
-/* vector */
-
-void
-ao_scheme_vector_write(ao_poly v, bool write);
-
-struct ao_scheme_vector *
-ao_scheme_vector_alloc(uint16_t length, ao_poly fill);
-
-ao_poly
-ao_scheme_vector_get(ao_poly v, ao_poly i);
-
-ao_poly
-ao_scheme_vector_set(ao_poly v, ao_poly i, ao_poly p);
-
-struct ao_scheme_vector *
-ao_scheme_list_to_vector(struct ao_scheme_cons *cons);
-
-struct ao_scheme_cons *
-ao_scheme_vector_to_list(struct ao_scheme_vector *vector);
-
-extern const struct ao_scheme_type ao_scheme_vector_type;
-
-/* prim */
-void (*ao_scheme_poly_write_func(ao_poly p))(ao_poly p, bool write);
-
-static inline void
-ao_scheme_poly_write(ao_poly p, bool write) { (*ao_scheme_poly_write_func(p))(p, write); }
-
-int
-ao_scheme_poly_mark(ao_poly p, uint8_t note_cons);
-
-/* returns 1 if the object has already been moved */
-int
-ao_scheme_poly_move(ao_poly *p, uint8_t note_cons);
-
-/* eval */
-
-void
-ao_scheme_eval_clear_globals(void);
-
-int
-ao_scheme_eval_restart(void);
-
-ao_poly
-ao_scheme_eval(ao_poly p);
-
-ao_poly
-ao_scheme_set_cond(struct ao_scheme_cons *cons);
-
-/* float */
-#ifdef AO_SCHEME_FEATURE_FLOAT
-extern const struct ao_scheme_type ao_scheme_float_type;
-
-void
-ao_scheme_float_write(ao_poly p, bool write);
-
-ao_poly
-ao_scheme_float_get(float value);
-#endif
-
-#ifdef AO_SCHEME_FEATURE_FLOAT
-static inline uint8_t
-ao_scheme_number_typep(uint8_t t)
-{
- return ao_scheme_integer_typep(t) || (t == AO_SCHEME_FLOAT);
-}
-#else
-#define ao_scheme_number_typep ao_scheme_integer_typep
-#endif
-
-/* builtin */
-void
-ao_scheme_builtin_write(ao_poly b, bool write);
-
-extern const struct ao_scheme_type ao_scheme_builtin_type;
-
-/* Check argument count */
-ao_poly
-ao_scheme_check_argc(ao_poly name, struct ao_scheme_cons *cons, int min, int max);
-
-/* Check argument type */
-ao_poly
-ao_scheme_check_argt(ao_poly name, struct ao_scheme_cons *cons, int argc, int type, int nil_ok);
-
-/* Fetch an arg (nil if off the end) */
-ao_poly
-ao_scheme_arg(struct ao_scheme_cons *cons, int argc);
-
-char *
-ao_scheme_args_name(uint8_t args);
-
-/* read */
-extern int ao_scheme_read_list;
-extern struct ao_scheme_cons *ao_scheme_read_cons;
-extern struct ao_scheme_cons *ao_scheme_read_cons_tail;
-extern struct ao_scheme_cons *ao_scheme_read_stack;
-
-ao_poly
-ao_scheme_read(void);
-
-/* rep */
-ao_poly
-ao_scheme_read_eval_print(void);
-
-/* frame */
-extern const struct ao_scheme_type ao_scheme_frame_type;
-extern const struct ao_scheme_type ao_scheme_frame_vals_type;
-
-#define AO_SCHEME_FRAME_FREE 6
-
-extern struct ao_scheme_frame *ao_scheme_frame_free_list[AO_SCHEME_FRAME_FREE];
-
-ao_poly
-ao_scheme_frame_mark(struct ao_scheme_frame *frame);
-
-ao_poly *
-ao_scheme_frame_ref(struct ao_scheme_frame *frame, ao_poly atom);
-
-struct ao_scheme_frame *
-ao_scheme_frame_new(int num);
-
-void
-ao_scheme_frame_free(struct ao_scheme_frame *frame);
-
-void
-ao_scheme_frame_bind(struct ao_scheme_frame *frame, int num, ao_poly atom, ao_poly val);
-
-ao_poly
-ao_scheme_frame_add(struct ao_scheme_frame *frame, ao_poly atom, ao_poly val);
-
-void
-ao_scheme_frame_write(ao_poly p, bool write);
-
-void
-ao_scheme_frame_init(void);
-
-/* lambda */
-extern const struct ao_scheme_type ao_scheme_lambda_type;
-
-extern const char * const ao_scheme_state_names[];
-
-struct ao_scheme_lambda *
-ao_scheme_lambda_new(ao_poly cons);
-
-void
-ao_scheme_lambda_write(ao_poly lambda, bool write);
-
-ao_poly
-ao_scheme_lambda_eval(void);
-
-/* stack */
-
-extern const struct ao_scheme_type ao_scheme_stack_type;
-extern struct ao_scheme_stack *ao_scheme_stack;
-extern struct ao_scheme_stack *ao_scheme_stack_free_list;
-
-extern int ao_scheme_frame_print_indent;
-
-void
-ao_scheme_stack_reset(struct ao_scheme_stack *stack);
-
-int
-ao_scheme_stack_push(void);
-
-void
-ao_scheme_stack_pop(void);
-
-void
-ao_scheme_stack_clear(void);
-
-void
-ao_scheme_stack_write(ao_poly stack, bool write);
-
-ao_poly
-ao_scheme_stack_eval(void);
-
-/* error */
-
-void
-ao_scheme_vprintf(const char *format, va_list args);
-
-void
-ao_scheme_printf(const char *format, ...);
-
-ao_poly
-ao_scheme_error(int error, const char *format, ...);
-
-/* builtins */
-
-#define AO_SCHEME_BUILTIN_DECLS
-#include "ao_scheme_builtin.h"
-
-/* debugging macros */
-
-#if DBG_EVAL || DBG_READ
-int ao_scheme_stack_depth;
-#endif
-
-#if DBG_EVAL
-#define DBG_DO(a) a
-#define DBG_INDENT() do { int _s; for(_s = 0; _s < ao_scheme_stack_depth; _s++) printf(" "); } while(0)
-#define DBG_IN() (++ao_scheme_stack_depth)
-#define DBG_OUT() (--ao_scheme_stack_depth)
-#define DBG_RESET() (ao_scheme_stack_depth = 0)
-#define DBG(...) ao_scheme_printf(__VA_ARGS__)
-#define DBGI(...) do { printf("%4d: ", __LINE__); DBG_INDENT(); DBG(__VA_ARGS__); } while (0)
-#define DBG_CONS(a) ao_scheme_cons_write(ao_scheme_cons_poly(a), true)
-#define DBG_POLY(a) ao_scheme_poly_write(a, true)
-#define OFFSET(a) ((a) ? (int) ((uint8_t *) a - ao_scheme_pool) : -1)
-#define DBG_STACK() ao_scheme_stack_write(ao_scheme_stack_poly(ao_scheme_stack), true)
-static inline void
-ao_scheme_frames_dump(void)
-{
- struct ao_scheme_stack *s;
- DBGI(".. current frame: "); DBG_POLY(ao_scheme_frame_poly(ao_scheme_frame_current)); DBG("\n");
- for (s = ao_scheme_stack; s; s = ao_scheme_poly_stack(s->prev)) {
- DBGI(".. stack frame: "); DBG_POLY(s->frame); DBG("\n");
- }
-}
-#define DBG_FRAMES() ao_scheme_frames_dump()
-#else
-#define DBG_DO(a)
-#define DBG_INDENT()
-#define DBG_IN()
-#define DBG_OUT()
-#define DBG(...)
-#define DBGI(...)
-#define DBG_CONS(a)
-#define DBG_POLY(a)
-#define DBG_RESET()
-#define DBG_STACK()
-#define DBG_FRAMES()
-#endif
-
-#if DBG_READ
-#define RDBGI(...) do { printf("%4d: ", __LINE__); DBG_INDENT(); ao_scheme_printf(__VA_ARGS__); } while (0)
-#define RDBG_IN() (++ao_scheme_stack_depth)
-#define RDBG_OUT() (--ao_scheme_stack_depth)
-#else
-#define RDBGI(...)
-#define RDBG_IN()
-#define RDBG_OUT()
-#endif
-
-static inline int
-ao_scheme_mdbg_offset(void *a)
-{
- uint8_t *u = a;
-
- if (u == 0)
- return -1;
-
- if (ao_scheme_pool <= u && u < ao_scheme_pool + AO_SCHEME_POOL)
- return u - ao_scheme_pool;
-
-#ifndef AO_SCHEME_MAKE_CONST
- if (ao_scheme_const <= u && u < ao_scheme_const + AO_SCHEME_POOL_CONST)
- return - (int) (u - ao_scheme_const);
-#endif
- return -2;
-}
-
-#define MDBG_OFFSET(a) ao_scheme_mdbg_offset(a)
-
-#if DBG_MEM
-
-#define DBG_MEM_START 1
-
-#include <assert.h>
-extern int dbg_move_depth;
-#define MDBG_DUMP 1
-
-extern int dbg_mem;
-
-#define MDBG_DO(a) a
-#define MDBG_MOVE(...) do { if (dbg_mem) { int d; for (d = 0; d < dbg_move_depth; d++) printf (" "); printf(__VA_ARGS__); } } while (0)
-#define MDBG_MORE(...) do { if (dbg_mem) printf(__VA_ARGS__); } while (0)
-#define MDBG_MOVE_IN() (dbg_move_depth++)
-#define MDBG_MOVE_OUT() (assert(--dbg_move_depth >= 0))
-
-#else
-
-#define MDBG_DO(a)
-#define MDBG_MOVE(...)
-#define MDBG_MORE(...)
-#define MDBG_MOVE_IN()
-#define MDBG_MOVE_OUT()
-
-#endif
-
-#endif /* _AO_SCHEME_H_ */
projects / fw / altos / blobdiff