Write a garbage collector.

Does it work? No, but it compiles.

1 files changed, 27 insertions, 0 deletions

diff --git a/bytecode/heap.h b/bytecode/heap.h
new file mode 100644
index 0000000..c8d7e2c
--- /dev/null
+++ b/bytecode/heap.h
@@ -0,0 +1,27 @@
+#ifndef _HEAP_H_
+#define _HEAP_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "slice.h"
+#include "value.h"
+
+struct heap {
+	// The heap is divided into two halves for garbage collection.
+	// buf holds the malloc'd heap buffer.
+	value *buf;
+	// active and standby are slices that partition buf.
+	struct val_slice active;
+	struct val_slice standby;
+
+	size_t free_ptr;
+
+	size_t last_free;
+	struct val_slice gc_roots;
+};
+
+struct heap new_heap(struct val_slice);
+value *alloc(struct heap *, int64_t);
+
+#endif