X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Flisp%2Fao_lisp.h;h=ea8d98b5b57eb9cea7d6bc4bbee02007e972a543;hb=daa06c8dedc6dc1cf21936ee2769d9d25f0567bd;hp=906bae19f8f7dc79f21b463d14e0e6b143ac4de2;hpb=ddb4b8d90478ae324aa207a7541352c1ac9451ee;p=fw%2Faltos

diff --git a/src/lisp/ao_lisp.h b/src/lisp/ao_lisp.h
index 906bae19..ea8d98b5 100644
--- a/src/lisp/ao_lisp.h
+++ b/src/lisp/ao_lisp.h
@@ -156,13 +156,33 @@ struct ao_lisp_val {
 
 struct ao_lisp_frame {
 	uint8_t			type;
-	uint8_t			num;
-	ao_poly			next;
+	uint8_t			_num;
+	ao_poly			prev;
 	struct ao_lisp_val	vals[];
 };
 
+#define AO_LISP_FRAME_NUM_MASK	0x7f
+
+/* Set when the frame escapes the lambda */
+#define AO_LISP_FRAME_MARK	0x80
+
+static inline int ao_lisp_frame_num(struct ao_lisp_frame *f) {
+	if (f->_num == 0xff)
+		ao_lisp_abort();
+	return f->_num & AO_LISP_FRAME_NUM_MASK;
+}
+
+static inline int ao_lisp_frame_marked(struct ao_lisp_frame *f) {
+	if (f->_num == 0xff)
+		ao_lisp_abort();
+	return f->_num & AO_LISP_FRAME_MARK;
+}
+
 static inline struct ao_lisp_frame *
 ao_lisp_poly_frame(ao_poly poly) {
+	struct ao_lisp_frame *frame = ao_lisp_ref(poly);
+	if (frame && frame->_num == 0xff)
+		ao_lisp_abort();
 	return ao_lisp_ref(poly);
 }
 
@@ -173,14 +193,15 @@ ao_lisp_frame_poly(struct ao_lisp_frame *frame) {
 
 enum eval_state {
 	eval_sexpr,		/* Evaluate an sexpr */
-	eval_val,
-	eval_formal,
-	eval_exec,
-	eval_cond,
-	eval_cond_test,
-	eval_progn,
-	eval_while,
-	eval_while_test,
+	eval_val,		/* Value computed */
+	eval_formal,		/* Formal computed */
+	eval_exec,		/* Start a lambda evaluation */
+	eval_cond,		/* Start next cond clause */
+	eval_cond_test,		/* Check cond condition */
+	eval_progn,		/* Start next progn entry */
+	eval_while,		/* Start while condition */
+	eval_while_test,	/* Check while condition */
+	eval_macro,		/* Finished with macro generation */
 };
 
 struct ao_lisp_stack {
@@ -206,6 +227,7 @@ ao_lisp_stack_poly(struct ao_lisp_stack *stack)
 }
 
 extern struct ao_lisp_stack	*ao_lisp_stack;
+extern struct ao_lisp_stack	*ao_lisp_stack_free_list;
 extern ao_poly			ao_lisp_v;
 
 #define AO_LISP_FUNC_LAMBDA	0
@@ -213,6 +235,14 @@ extern ao_poly			ao_lisp_v;
 #define AO_LISP_FUNC_MACRO	2
 #define AO_LISP_FUNC_LEXPR	3
 
+#define AO_LISP_FUNC_FREE_ARGS	0x80
+#define AO_LISP_FUNC_MASK	0x7f
+
+#define AO_LISP_FUNC_F_LAMBDA	(AO_LISP_FUNC_FREE_ARGS | AO_LISP_FUNC_LAMBDA)
+#define AO_LISP_FUNC_F_NLAMBDA	(AO_LISP_FUNC_FREE_ARGS | AO_LISP_FUNC_NLAMBDA)
+#define AO_LISP_FUNC_F_MACRO	(AO_LISP_FUNC_FREE_ARGS | AO_LISP_FUNC_MACRO)
+#define AO_LISP_FUNC_F_LEXPR	(AO_LISP_FUNC_FREE_ARGS | AO_LISP_FUNC_LEXPR)
+
 struct ao_lisp_builtin {
 	uint8_t		type;
 	uint8_t		args;
@@ -390,6 +420,11 @@ ao_lisp_builtin_poly(struct ao_lisp_builtin *b)
 }
 
 /* memory functions */
+
+extern int ao_lisp_collects[2];
+extern int ao_lisp_freed[2];
+extern int ao_lisp_loops[2];
+
 /* returns 1 if the object was already marked */
 int
 ao_lisp_mark(const struct ao_lisp_type *type, void *addr);
@@ -412,8 +447,11 @@ ao_lisp_move_memory(const struct ao_lisp_type *type, void **ref);
 void *
 ao_lisp_alloc(int size);
 
-void
-ao_lisp_collect(void);
+#define AO_LISP_COLLECT_FULL		1
+#define AO_LISP_COLLECT_INCREMENTAL	0
+
+int
+ao_lisp_collect(uint8_t style);
 
 void
 ao_lisp_cons_stash(int id, struct ao_lisp_cons *cons);
@@ -439,6 +477,11 @@ extern const struct ao_lisp_type ao_lisp_cons_type;
 struct ao_lisp_cons *
 ao_lisp_cons_cons(ao_poly car, struct ao_lisp_cons *cdr);
 
+extern struct ao_lisp_cons *ao_lisp_cons_free_list;
+
+void
+ao_lisp_cons_free(struct ao_lisp_cons *cons);
+
 void
 ao_lisp_cons_print(ao_poly);
 
@@ -482,6 +525,9 @@ ao_lisp_atom_print(ao_poly a);
 struct ao_lisp_atom *
 ao_lisp_atom_intern(char *name);
 
+ao_poly *
+ao_lisp_atom_ref(struct ao_lisp_frame *frame, ao_poly atom);
+
 ao_poly
 ao_lisp_atom_get(ao_poly atom);
 
@@ -556,12 +602,22 @@ ao_lisp_read_eval_print(void);
 /* frame */
 extern const struct ao_lisp_type ao_lisp_frame_type;
 
+#define AO_LISP_FRAME_FREE	4
+
+extern struct ao_lisp_frame	*ao_lisp_frame_free_list[AO_LISP_FRAME_FREE];
+
+ao_poly
+ao_lisp_frame_mark(struct ao_lisp_frame *frame);
+
 ao_poly *
 ao_lisp_frame_ref(struct ao_lisp_frame *frame, ao_poly atom);
 
 struct ao_lisp_frame *
 ao_lisp_frame_new(int num);
 
+void
+ao_lisp_frame_free(struct ao_lisp_frame *frame);
+
 int
 ao_lisp_frame_add(struct ao_lisp_frame **frame, ao_poly atom, ao_poly val);
 
@@ -650,7 +706,7 @@ ao_lisp_frames_dump(void)
 #define DBG_FRAMES()
 #endif
 
-#define DBG_MEM		1
+#define DBG_MEM		0
 #define DBG_MEM_START	1
 
 #if DBG_MEM