+++ /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.
- */
-
-#include "ao_scheme.h"
-
-struct ao_scheme_funcs {
- void (*write)(ao_poly);
- void (*display)(ao_poly);
-};
-
-static const struct ao_scheme_funcs ao_scheme_funcs[AO_SCHEME_NUM_TYPE] = {
- [AO_SCHEME_CONS] = {
- .write = ao_scheme_cons_write,
- .display = ao_scheme_cons_display,
- },
- [AO_SCHEME_STRING] = {
- .write = ao_scheme_string_write,
- .display = ao_scheme_string_display,
- },
- [AO_SCHEME_INT] = {
- .write = ao_scheme_int_write,
- .display = ao_scheme_int_write,
- },
- [AO_SCHEME_ATOM] = {
- .write = ao_scheme_atom_write,
- .display = ao_scheme_atom_write,
- },
- [AO_SCHEME_BUILTIN] = {
- .write = ao_scheme_builtin_write,
- .display = ao_scheme_builtin_write,
- },
- [AO_SCHEME_FRAME] = {
- .write = ao_scheme_frame_write,
- .display = ao_scheme_frame_write,
- },
- [AO_SCHEME_FRAME_VALS] = {
- .write = NULL,
- .display = NULL,
- },
- [AO_SCHEME_LAMBDA] = {
- .write = ao_scheme_lambda_write,
- .display = ao_scheme_lambda_write,
- },
- [AO_SCHEME_STACK] = {
- .write = ao_scheme_stack_write,
- .display = ao_scheme_stack_write,
- },
- [AO_SCHEME_BOOL] = {
- .write = ao_scheme_bool_write,
- .display = ao_scheme_bool_write,
- },
- [AO_SCHEME_BIGINT] = {
- .write = ao_scheme_bigint_write,
- .display = ao_scheme_bigint_write,
- },
- [AO_SCHEME_FLOAT] = {
- .write = ao_scheme_float_write,
- .display = ao_scheme_float_write,
- },
-};
-
-static const struct ao_scheme_funcs *
-funcs(ao_poly p)
-{
- uint8_t type = ao_scheme_poly_type(p);
-
- if (type < AO_SCHEME_NUM_TYPE)
- return &ao_scheme_funcs[type];
- return NULL;
-}
-
-void
-ao_scheme_poly_write(ao_poly p)
-{
- const struct ao_scheme_funcs *f = funcs(p);
-
- if (f && f->write)
- f->write(p);
-}
-
-void
-ao_scheme_poly_display(ao_poly p)
-{
- const struct ao_scheme_funcs *f = funcs(p);
-
- if (f && f->display)
- f->display(p);
-}
-
-void *
-ao_scheme_ref(ao_poly poly) {
- if (poly == AO_SCHEME_NIL)
- return NULL;
- if (poly & AO_SCHEME_CONST)
- return (void *) (ao_scheme_const + (poly & AO_SCHEME_REF_MASK) - 4);
- return (void *) (ao_scheme_pool + (poly & AO_SCHEME_REF_MASK) - 4);
-}
-
-ao_poly
-ao_scheme_poly(const void *addr, ao_poly type) {
- const uint8_t *a = addr;
- if (a == NULL)
- return AO_SCHEME_NIL;
- if (AO_SCHEME_IS_CONST(a))
- return AO_SCHEME_CONST | (a - ao_scheme_const + 4) | type;
- return (a - ao_scheme_pool + 4) | type;
-}