1 files changed, 0 insertions, 391 deletions
diff --git a/src/scheme/ao_scheme_frame.c b/src/scheme/ao_scheme_frame.c
deleted file mode 100644
index e4da279b..00000000
--- a/src/scheme/ao_scheme_frame.c
+++ /dev/null
@@ -1,391 +0,0 @@
-/*
- * 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"
-
-static inline int
-frame_vals_num_size(int num)
-{
-	return sizeof (struct ao_scheme_frame_vals) + num * sizeof (struct ao_scheme_val);
-}
-
-static int
-frame_vals_size(void *addr)
-{
-	struct ao_scheme_frame_vals	*vals = addr;
-	return frame_vals_num_size(vals->size);
-}
-
-static void
-frame_vals_mark(void *addr)
-{
-	struct ao_scheme_frame_vals	*vals = addr;
-	int				f;
-
-	for (f = 0; f < vals->size; f++) {
-		struct ao_scheme_val	*v = &vals->vals[f];
-
-		ao_scheme_poly_mark(v->atom, 0);
-		ao_scheme_poly_mark(v->val, 0);
-		MDBG_MOVE("frame mark atom %s %d val %d at %d\n",
-			  ao_scheme_poly_atom(v->atom)->name,
-			  MDBG_OFFSET(ao_scheme_ref(v->atom)),
-			  MDBG_OFFSET(ao_scheme_ref(v->val)), f);
-	}
-}
-
-static void
-frame_vals_move(void *addr)
-{
-	struct ao_scheme_frame_vals	*vals = addr;
-	int				f;
-
-	for (f = 0; f < vals->size; f++) {
-		struct ao_scheme_val	*v = &vals->vals[f];
-
-		ao_scheme_poly_move(&v->atom, 0);
-		ao_scheme_poly_move(&v->val, 0);
-		MDBG_MOVE("frame move atom %s %d val %d at %d\n",
-			  ao_scheme_poly_atom(v->atom)->name,
-			  MDBG_OFFSET(ao_scheme_ref(v->atom)),
-			  MDBG_OFFSET(ao_scheme_ref(v->val)), f);
-	}
-}
-
-const struct ao_scheme_type ao_scheme_frame_vals_type = {
-	.mark = frame_vals_mark,
-	.size = frame_vals_size,
-	.move = frame_vals_move,
-	.name = "frame_vals"
-};
-
-static int
-frame_size(void *addr)
-{
-	(void) addr;
-	return sizeof (struct ao_scheme_frame);
-}
-
-static void
-frame_mark(void *addr)
-{
-	struct ao_scheme_frame	*frame = addr;
-
-	for (;;) {
-		struct ao_scheme_frame_vals	*vals = ao_scheme_poly_frame_vals(frame->vals);
-
-		MDBG_MOVE("frame mark %d\n", MDBG_OFFSET(frame));
-		if (!ao_scheme_mark_memory(&ao_scheme_frame_vals_type, vals))
-			frame_vals_mark(vals);
-		frame = ao_scheme_poly_frame(frame->prev);
-		MDBG_MOVE("frame next %d\n", MDBG_OFFSET(frame));
-		if (!frame)
-			break;
-		if (ao_scheme_mark_memory(&ao_scheme_frame_type, frame))
-			break;
-	}
-}
-
-static void
-frame_move(void *addr)
-{
-	struct ao_scheme_frame	*frame = addr;
-
-	for (;;) {
-		struct ao_scheme_frame		*prev;
-		struct ao_scheme_frame_vals	*vals;
-		int				ret;
-
-		MDBG_MOVE("frame move %d\n", MDBG_OFFSET(frame));
-		vals = ao_scheme_poly_frame_vals(frame->vals);
-		if (!ao_scheme_move_memory(&ao_scheme_frame_vals_type, (void **) &vals))
-			frame_vals_move(vals);
-		if (vals != ao_scheme_poly_frame_vals(frame->vals))
-			frame->vals = ao_scheme_frame_vals_poly(vals);
-
-		prev = ao_scheme_poly_frame(frame->prev);
-		if (!prev)
-			break;
-		ret = ao_scheme_move_memory(&ao_scheme_frame_type, (void **) &prev);
-		if (prev != ao_scheme_poly_frame(frame->prev)) {
-			MDBG_MOVE("frame prev moved from %d to %d\n",
-				  MDBG_OFFSET(ao_scheme_poly_frame(frame->prev)),
-				  MDBG_OFFSET(prev));
-			frame->prev = ao_scheme_frame_poly(prev);
-		}
-		if (ret)
-			break;
-		frame = prev;
-	}
-}
-
-const struct ao_scheme_type ao_scheme_frame_type = {
-	.mark = frame_mark,
-	.size = frame_size,
-	.move = frame_move,
-	.name = "frame",
-};
-
-int ao_scheme_frame_print_indent;
-
-static void
-ao_scheme_frame_indent(FILE *out, int extra)
-{
-	int				i;
-	putc('\n', out);
-	for (i = 0; i < ao_scheme_frame_print_indent+extra; i++)
-		putc('\t', out);
-}
-
-void
-ao_scheme_frame_write(FILE *out, ao_poly p, bool write)
-{
-	struct ao_scheme_frame		*frame = ao_scheme_poly_frame(p);
-	struct ao_scheme_frame		*clear = frame;
-	int				f;
-	int				written = 0;
-
-	ao_scheme_print_start();
-	while (frame) {
-		struct ao_scheme_frame_vals	*vals = ao_scheme_poly_frame_vals(frame->vals);
-
-		if (written != 0)
-			fputs(", ", out);
-		if (ao_scheme_print_mark_addr(frame)) {
-			fputs("recurse...", out);
-			break;
-		}
-
-		putc('{', out);
-		written++;
-		for (f = 0; f < frame->num; f++) {
-			ao_scheme_frame_indent(out, 1);
-			ao_scheme_poly_write(out, vals->vals[f].atom, write);
-			fputs(" = ", out);
-			ao_scheme_poly_write(out, vals->vals[f].val, write);
-		}
-		frame = ao_scheme_poly_frame(frame->prev);
-		ao_scheme_frame_indent(out, 0);
-		putc('}', out);
-	}
-	if (ao_scheme_print_stop()) {
-		while (written--) {
-			ao_scheme_print_clear_addr(clear);
-			clear = ao_scheme_poly_frame(clear->prev);
-		}
-	}
-}
-
-static int
-ao_scheme_frame_find(struct ao_scheme_frame *frame, int top, ao_poly atom)
-{
-	struct ao_scheme_frame_vals	*vals = ao_scheme_poly_frame_vals(frame->vals);
-	int 				l = 0;
-	int 				r = top - 1;
-
-	while (l <= r) {
-		int m = (l + r) >> 1;
-		if (vals->vals[m].atom < atom)
-			l = m + 1;
-		else
-			r = m - 1;
-	}
-	return l;
-}
-
-ao_poly *
-ao_scheme_frame_ref(struct ao_scheme_frame *frame, ao_poly atom)
-{
-	struct ao_scheme_frame_vals	*vals = ao_scheme_poly_frame_vals(frame->vals);
-	int				l = ao_scheme_frame_find(frame, frame->num, atom);
-
-	if (l >= frame->num)
-		return NULL;
-
-	if (vals->vals[l].atom != atom)
-		return NULL;
-	return &vals->vals[l].val;
-}
-
-struct ao_scheme_frame	*ao_scheme_frame_free_list[AO_SCHEME_FRAME_FREE];
-
-static struct ao_scheme_frame_vals *
-ao_scheme_frame_vals_new(int num)
-{
-	struct ao_scheme_frame_vals	*vals;
-
-	vals = ao_scheme_alloc(frame_vals_num_size(num));
-	if (!vals)
-		return NULL;
-	vals->type = AO_SCHEME_FRAME_VALS;
-	vals->size = num;
-	memset(vals->vals, '\0', num * sizeof (struct ao_scheme_val));
-	return vals;
-}
-
-struct ao_scheme_frame *
-ao_scheme_frame_new(int num)
-{
-	struct ao_scheme_frame		*frame;
-	struct ao_scheme_frame_vals	*vals;
-
-	if (num < AO_SCHEME_FRAME_FREE && (frame = ao_scheme_frame_free_list[num])) {
-		ao_scheme_frame_free_list[num] = ao_scheme_poly_frame(frame->prev);
-		vals = ao_scheme_poly_frame_vals(frame->vals);
-	} else {
-		frame = ao_scheme_alloc(sizeof (struct ao_scheme_frame));
-		if (!frame)
-			return NULL;
-		frame->type = AO_SCHEME_FRAME;
-		frame->num = 0;
-		frame->prev = AO_SCHEME_NIL;
-		frame->vals = AO_SCHEME_NIL;
-		ao_scheme_frame_stash(frame);
-		vals = ao_scheme_frame_vals_new(num);
-		frame = ao_scheme_frame_fetch();
-		if (!vals)
-			return NULL;
-		frame->vals = ao_scheme_frame_vals_poly(vals);
-		frame->num = num;
-	}
-	frame->prev = AO_SCHEME_NIL;
-	return frame;
-}
-
-ao_poly
-ao_scheme_frame_mark(struct ao_scheme_frame *frame)
-{
-	if (!frame)
-		return AO_SCHEME_NIL;
-	frame->type |= AO_SCHEME_FRAME_MARK;
-	return ao_scheme_frame_poly(frame);
-}
-
-void
-ao_scheme_frame_free(struct ao_scheme_frame *frame)
-{
-	if (frame && !ao_scheme_frame_marked(frame)) {
-		int	num = frame->num;
-		if (num < AO_SCHEME_FRAME_FREE) {
-			struct ao_scheme_frame_vals	*vals;
-
-			vals = ao_scheme_poly_frame_vals(frame->vals);
-			memset(vals->vals, '\0', vals->size * sizeof (struct ao_scheme_val));
-			frame->prev = ao_scheme_frame_poly(ao_scheme_frame_free_list[num]);
-			ao_scheme_frame_free_list[num] = frame;
-		}
-	}
-}
-
-static struct ao_scheme_frame *
-ao_scheme_frame_realloc(struct ao_scheme_frame *frame, int new_num)
-{
-	struct ao_scheme_frame_vals	*vals;
-	struct ao_scheme_frame_vals	*new_vals;
-	int				copy;
-
-	if (new_num == frame->num)
-		return frame;
-	ao_scheme_frame_stash(frame);
-	new_vals = ao_scheme_frame_vals_new(new_num);
-	frame = ao_scheme_frame_fetch();
-	if (!new_vals)
-		return NULL;
-	vals = ao_scheme_poly_frame_vals(frame->vals);
-	copy = new_num;
-	if (copy > frame->num)
-		copy = frame->num;
-	memcpy(new_vals->vals, vals->vals, copy * sizeof (struct ao_scheme_val));
-	frame->vals = ao_scheme_frame_vals_poly(new_vals);
-	frame->num = new_num;
-	return frame;
-}
-
-void
-ao_scheme_frame_bind(struct ao_scheme_frame *frame, int num, ao_poly atom, ao_poly val)
-{
-	struct ao_scheme_frame_vals	*vals = ao_scheme_poly_frame_vals(frame->vals);
-	int 				l = ao_scheme_frame_find(frame, num, atom);
-
-	memmove(&vals->vals[l+1],
-		&vals->vals[l],
-		(num - l) * sizeof (struct ao_scheme_val));
-	vals->vals[l].atom = atom;
-	vals->vals[l].val = val;
-}
-
-ao_poly
-ao_scheme_frame_add(struct ao_scheme_frame *frame, ao_poly atom, ao_poly val)
-{
-	ao_poly *ref = frame ? ao_scheme_frame_ref(frame, atom) : NULL;
-
-	if (!ref) {
-		int f = frame->num;
-		ao_scheme_poly_stash(atom);
-		ao_scheme_poly_stash(val);
-		frame = ao_scheme_frame_realloc(frame, f + 1);
-		val = ao_scheme_poly_fetch();
-		atom = ao_scheme_poly_fetch();
-		if (!frame)
-			return AO_SCHEME_NIL;
-		ao_scheme_frame_bind(frame, frame->num - 1, atom, val);
-	} else
-		*ref = val;
-	return val;
-}
-
-#ifdef AO_SCHEME_FEATURE_UNDEF
-ao_poly
-ao_scheme_frame_del(struct ao_scheme_frame *frame, ao_poly atom)
-{
-	struct ao_scheme_frame_vals	*vals = ao_scheme_poly_frame_vals(frame->vals);
-	int				l = ao_scheme_frame_find(frame, frame->num, atom);
-	int				f = frame->num;
-	struct ao_scheme_frame		*moved_frame;
-
-	if (l >= frame->num)
-		return _ao_scheme_bool_false;
-
-	if (vals->vals[l].atom != atom)
-		return _ao_scheme_bool_false;
-
-	/* squash the deleted entry */
-	memmove(&vals->vals[l],
-		&vals->vals[l+1],
-		(f - l) * sizeof (struct ao_scheme_val));
-
-	/* allocate a smaller vals array */
-	ao_scheme_frame_stash(frame);
-	moved_frame = ao_scheme_frame_realloc(frame, f - 1);
-	frame = ao_scheme_frame_fetch();
-
-	/*
-	 * We couldn't allocate a smaller frame, so just
-	 * ignore the last value in the array
-	 */
-	if (!moved_frame)
-		frame->num = f - 1;
-	return _ao_scheme_bool_true;
-}
-#endif
-
-struct ao_scheme_frame	*ao_scheme_frame_global;
-struct ao_scheme_frame	*ao_scheme_frame_current;
-
-void
-ao_scheme_frame_init(void)
-{
-	if (!ao_scheme_frame_global)
-		ao_scheme_frame_global = ao_scheme_frame_new(0);
-}