+++ /dev/null
-/*
- * Copyright © 2017 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"
-
-#ifdef AO_SCHEME_FEATURE_VECTOR
-
-static void vector_mark(void *addr)
-{
- struct ao_scheme_vector *vector = addr;
- unsigned int i;
-
- for (i = 0; i < vector->length; i++) {
- ao_poly v = vector->vals[i];
-
- ao_scheme_poly_mark(v, 1);
- }
-}
-
-static int vector_len_size(uint16_t length)
-{
- return sizeof (struct ao_scheme_vector) + length * sizeof (ao_poly);
-}
-
-static int vector_size(void *addr)
-{
- struct ao_scheme_vector *vector = addr;
-
- return vector_len_size(vector->length);
-}
-
-static void vector_move(void *addr)
-{
- struct ao_scheme_vector *vector = addr;
- unsigned int i;
-
- for (i = 0; i < vector->length; i++)
- (void) ao_scheme_poly_move(&vector->vals[i], 1);
-}
-
-const struct ao_scheme_type ao_scheme_vector_type = {
- .mark = vector_mark,
- .size = vector_size,
- .move = vector_move,
- .name = "vector",
-};
-
-struct ao_scheme_vector *
-ao_scheme_vector_alloc(uint16_t length, ao_poly fill)
-{
- struct ao_scheme_vector *vector;
- unsigned int i;
-
- vector = ao_scheme_alloc(vector_len_size(length));
- if (!vector)
- return NULL;
- vector->type = AO_SCHEME_VECTOR;
- vector->length = length;
- for (i = 0; i < length; i++)
- vector->vals[i] = fill;
- return vector;
-}
-
-struct vl {
- struct ao_scheme_vector *vector;
- struct vl *prev;
-};
-
-static struct vl *vl;
-static unsigned int vd;
-
-void
-ao_scheme_vector_write(FILE *out, ao_poly v, bool write)
-{
- struct ao_scheme_vector *vector = ao_scheme_poly_vector(v);
- unsigned int i;
- int was_marked = 0;
- struct vl *ve;
-
- ++vd;
- for (ve = vl; ve; ve = ve->prev)
- if (ve->vector == vector)
- abort();
-
- ve = malloc(sizeof (struct vl));
- ve->prev = vl;
- ve->vector = vector;
- vl = ve;
-
- ao_scheme_print_start();
- was_marked = ao_scheme_print_mark_addr(vector);
- if (was_marked) {
- fputs("...", out);
- } else {
- fputs("#(", out);
- for (i = 0; i < vector->length; i++) {
- if (i != 0)
- putc(' ', out);
- ao_scheme_poly_write(out, vector->vals[i], write);
- }
- printf(")");
- }
- if (ao_scheme_print_stop() && !was_marked)
- ao_scheme_print_clear_addr(vector);
- if (vl != ve)
- abort();
- vl = ve->prev;
- free(ve);
- --vd;
-}
-
-struct ao_scheme_vector *
-ao_scheme_list_to_vector(struct ao_scheme_cons *cons)
-{
- uint16_t length;
- uint16_t i;
- struct ao_scheme_vector *vector;
-
- length = (uint16_t) ao_scheme_cons_length (cons);
- if (ao_scheme_exception)
- return NULL;
-
- ao_scheme_cons_stash(cons);
- vector = ao_scheme_vector_alloc(length, AO_SCHEME_NIL);
- cons = ao_scheme_cons_fetch();
- if (!vector)
- return NULL;
- i = 0;
- while (cons) {
- vector->vals[i++] = cons->car;
- cons = ao_scheme_cons_cdr(cons);
- }
- return vector;
-}
-
-struct ao_scheme_cons *
-ao_scheme_vector_to_list(struct ao_scheme_vector *vector, int start, int end)
-{
- int i;
- uint16_t length = vector->length;
- struct ao_scheme_cons *cons = NULL;
-
- if (end == -1)
- end = length;
- if (start < 0)
- start = 0;
- if (end > length)
- end = length;
- for (i = end; i-- > start;) {
- ao_scheme_vector_stash(vector);
- cons = ao_scheme_cons_cons(vector->vals[i], ao_scheme_cons_poly(cons));
- vector = ao_scheme_vector_fetch();
- if (!cons)
- return NULL;
- }
- return cons;
-}
-
-ao_poly
-ao_scheme_do_vector(struct ao_scheme_cons *cons)
-{
- return ao_scheme_vector_poly(ao_scheme_list_to_vector(cons));
-}
-
-ao_poly
-ao_scheme_do_make_vector(struct ao_scheme_cons *cons)
-{
- int32_t len;
- ao_poly val;
-
- if (!ao_scheme_parse_args(_ao_scheme_atom_make2dvector, cons,
- AO_SCHEME_INT, &len,
- AO_SCHEME_POLY|AO_SCHEME_ARG_OPTIONAL, _ao_scheme_bool_false, &val,
- AO_SCHEME_ARG_END))
- return AO_SCHEME_NIL;
- return ao_scheme_vector_poly(ao_scheme_vector_alloc(len, val));
-}
-
-static bool
-ao_scheme_check_vector(ao_poly proc, struct ao_scheme_vector *vector, int32_t offset)
-{
- if (offset < 0 || vector->length <= offset) {
- (void) ao_scheme_error(AO_SCHEME_INVALID, "%v: vector index %d out of range (max %d)",
- proc,
- offset, vector->length);
- return false;
- }
- return true;
-}
-
-ao_poly
-ao_scheme_do_vector_ref(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_vector *vector;
- int32_t offset;
-
- if (!ao_scheme_parse_args(_ao_scheme_atom_vector2dref, cons,
- AO_SCHEME_VECTOR, &vector,
- AO_SCHEME_INT, &offset,
- AO_SCHEME_ARG_END))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_vector(_ao_scheme_atom_vector2dref, vector, offset))
- return AO_SCHEME_NIL;
- return vector->vals[offset];
-}
-
-ao_poly
-ao_scheme_do_vector_set(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_vector *vector;
- int32_t offset;
- ao_poly val;
-
- if (!ao_scheme_parse_args(_ao_scheme_atom_vector2dset21, cons,
- AO_SCHEME_VECTOR, &vector,
- AO_SCHEME_INT, &offset,
- AO_SCHEME_POLY, &val,
- AO_SCHEME_ARG_END))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_vector(_ao_scheme_atom_vector2dset21, vector, offset))
- return AO_SCHEME_NIL;
- vector->vals[offset] = val;
- return val;
-}
-
-ao_poly
-ao_scheme_do_list_to_vector(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_cons *pair;
-
- if (!ao_scheme_parse_args(_ao_scheme_atom_list2d3evector, cons,
- AO_SCHEME_CONS|AO_SCHEME_ARG_NIL_OK, &pair,
- AO_SCHEME_ARG_END))
- return AO_SCHEME_NIL;
- return ao_scheme_vector_poly(ao_scheme_list_to_vector(pair));
-}
-
-ao_poly
-ao_scheme_do_vector_to_list(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_vector *vector;
- int32_t start, end;
-
- if (!ao_scheme_parse_args(_ao_scheme_atom_vector2d3elist, cons,
- AO_SCHEME_VECTOR, &vector,
- AO_SCHEME_INT|AO_SCHEME_ARG_OPTIONAL, ao_scheme_int_poly(0), &start,
- AO_SCHEME_INT|AO_SCHEME_ARG_OPTIONAL, ao_scheme_int_poly(-1), &end,
- AO_SCHEME_ARG_END))
- return AO_SCHEME_NIL;
- if (end == -1)
- end = vector->length;
- return ao_scheme_cons_poly(ao_scheme_vector_to_list(vector, start, end));
-}
-
-ao_poly
-ao_scheme_do_vector_length(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_vector *vector;
-
- if (!ao_scheme_parse_args(_ao_scheme_atom_vector2d3elist, cons,
- AO_SCHEME_VECTOR, &vector,
- AO_SCHEME_ARG_END))
- return AO_SCHEME_NIL;
- return ao_scheme_integer_poly(vector->length);
-}
-
-ao_poly
-ao_scheme_do_vectorp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(_ao_scheme_atom_vector3f, AO_SCHEME_VECTOR, cons);
-}
-
-#endif /* AO_SCHEME_FEATURE_VECTOR */
projects / fw / altos / blobdiff