1 files changed, 56 insertions, 0 deletions
diff --git a/Include/frameobject.h b/Include/frameobject.h
new file mode 100644
index 0000000..92d18d7
--- /dev/null
+++ b/Include/frameobject.h
@@ -0,0 +1,56 @@
+/* Frame object interface */
+
+typedef struct {
+	int b_type;		/* what kind of block this is */
+	int b_handler;		/* where to jump to find handler */
+	int b_level;		/* value stack level to pop to */
+} block;
+
+typedef struct _frame {
+	OB_HEAD
+	struct _frame *f_back;	/* previous frame, or NULL */
+	codeobject *f_code;	/* code segment */
+	object *f_globals;	/* global symbol table (dictobject) */
+	object *f_locals;	/* local symbol table (dictobject) */
+	object **f_valuestack;	/* malloc'ed array */
+	block *f_blockstack;	/* malloc'ed array */
+	int f_nvalues;		/* size of f_valuestack */
+	int f_nblocks;		/* size of f_blockstack */
+	int f_iblock;		/* index in f_blockstack */
+} frameobject;
+
+
+/* Standard object interface */
+
+extern typeobject Frametype;
+
+#define is_frameobject(op) ((op)->ob_type == &Frametype)
+
+frameobject * newframeobject PROTO(
+	(frameobject *, codeobject *, object *, object *, int, int));
+
+
+/* The rest of the interface is specific for frame objects */
+
+/* List access macros */
+
+#ifdef NDEBUG
+#define GETITEM(v, i) GETLISTITEM((listobject *)(v), (i))
+#define GETITEMNAME(v, i) GETSTRINGVALUE((stringobject *)GETITEM((v), (i)))
+#else
+#define GETITEM(v, i) getlistitem((v), (i))
+#define GETITEMNAME(v, i) getstringvalue(getlistitem((v), (i)))
+#endif
+
+#define GETUSTRINGVALUE(s) ((unsigned char *)GETSTRINGVALUE(s))
+
+/* Code access macros */
+
+#define Getconst(f, i)	(GETITEM((f)->f_code->co_consts, (i)))
+#define Getname(f, i)	(GETITEMNAME((f)->f_code->co_names, (i)))
+
+
+/* Block management functions */
+
+void setup_block PROTO((frameobject *, int, int, int));
+block *pop_block PROTO((frameobject *));