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-rw-r--r--libguile/stacks.h78
1 files changed, 13 insertions, 65 deletions
diff --git a/libguile/stacks.h b/libguile/stacks.h
index 20735eff5..ba97e0892 100644
--- a/libguile/stacks.h
+++ b/libguile/stacks.h
@@ -24,67 +24,28 @@
#include "libguile/__scm.h"
+#include "libguile/frames.h"
/* {Frames and stacks}
*/
-typedef struct scm_t_info_frame {
- /* SCM flags; */
- scm_t_bits flags;
- SCM source;
- SCM proc;
- SCM args;
-} scm_t_info_frame;
-#define SCM_FRAME_N_SLOTS (sizeof (scm_t_info_frame) / sizeof (SCM))
-
-#define SCM_STACK(obj) ((scm_t_stack *) SCM_STRUCT_DATA (obj))
-#define SCM_STACK_LAYOUT "pwuourpW"
-typedef struct scm_t_stack {
- SCM id; /* Stack id */
- scm_t_info_frame *frames; /* Info frames */
- unsigned long length; /* Stack length */
- unsigned long tail_length;
- scm_t_info_frame tail[1];
-} scm_t_stack;
-
SCM_API SCM scm_stack_type;
-#define SCM_STACKP(obj) (SCM_STRUCTP (obj) && scm_is_eq (SCM_STRUCT_VTABLE (obj), scm_stack_type))
-#define SCM_STACK_LENGTH(stack) (SCM_STACK (stack) -> length)
-
-#define SCM_FRAMEP(obj) \
- (scm_is_pair (obj) && SCM_STACKP (SCM_CAR (obj)) \
- && scm_is_unsigned_integer (SCM_CDR (obj), \
- 0, SCM_STACK_LENGTH (SCM_CAR (obj))-1))
+#define SCM_STACK_LAYOUT \
+ "pw" /* len */ \
+ "pw" /* id */ \
+ "pw" /* frame */
-#define SCM_FRAME_REF(frame, slot) \
-(SCM_STACK (SCM_CAR (frame)) -> frames[scm_to_size_t (SCM_CDR (frame))].slot)
-
-#define SCM_FRAME_NUMBER(frame) \
-(SCM_BACKWARDS_P \
- ? scm_to_size_t (SCM_CDR (frame)) \
- : (SCM_STACK_LENGTH (SCM_CAR (frame)) \
- - scm_to_size_t (SCM_CDR (frame)) \
- - 1)) \
-
-#define SCM_FRAME_FLAGS(frame) SCM_FRAME_REF (frame, flags)
-#define SCM_FRAME_SOURCE(frame) SCM_FRAME_REF (frame, source)
-#define SCM_FRAME_PROC(frame) SCM_FRAME_REF (frame, proc)
-#define SCM_FRAME_ARGS(frame) SCM_FRAME_REF (frame, args)
-#define SCM_FRAME_PREV(frame) scm_frame_previous (frame)
-#define SCM_FRAME_NEXT(frame) scm_frame_next (frame)
+#define SCM_STACKP(obj) (SCM_STRUCTP (obj) && scm_is_eq (SCM_STRUCT_VTABLE (obj), scm_stack_type))
+#define SCM_STACK_LENGTH(obj) (scm_to_long (SCM_STRUCT_SLOT_REF (obj,0)))
+#define SCM_SET_STACK_LENGTH(obj,f) (SCM_STRUCT_SLOT_SET (obj,0,scm_from_long (f)))
+#define SCM_STACK_ID(obj) (SCM_STRUCT_SLOT_REF (obj,1))
+#define SCM_SET_STACK_ID(obj,f) (SCM_STRUCT_SLOT_SET (obj,1,f))
+#define SCM_STACK_FRAME(obj) (SCM_STRUCT_SLOT_REF (obj,2))
+#define SCM_SET_STACK_FRAME(obj,f) (SCM_STRUCT_SLOT_SET (obj,2,f))
-#define SCM_FRAMEF_VOID (1L << 2)
-#define SCM_FRAMEF_REAL (1L << 3)
-#define SCM_FRAMEF_PROC (1L << 4)
-#define SCM_FRAMEF_EVAL_ARGS (1L << 5)
-#define SCM_FRAMEF_OVERFLOW (1L << 6)
+#define SCM_FRAMEP(obj) (SCM_VM_FRAME_P (obj))
-#define SCM_FRAME_VOID_P(f) (SCM_FRAME_FLAGS (f) & SCM_FRAMEF_VOID)
-#define SCM_FRAME_REAL_P(f) (SCM_FRAME_FLAGS (f) & SCM_FRAMEF_REAL)
-#define SCM_FRAME_PROC_P(f) (SCM_FRAME_FLAGS (f) & SCM_FRAMEF_PROC)
-#define SCM_FRAME_EVAL_ARGS_P(f) (SCM_FRAME_FLAGS (f) & SCM_FRAMEF_EVAL_ARGS)
-#define SCM_FRAME_OVERFLOW_P(f) (SCM_FRAME_FLAGS (f) & SCM_FRAMEF_OVERFLOW)
@@ -94,19 +55,6 @@ SCM_API SCM scm_stack_id (SCM stack);
SCM_API SCM scm_stack_ref (SCM stack, SCM i);
SCM_API SCM scm_stack_length (SCM stack);
-SCM_API SCM scm_frame_p (SCM obj);
-SCM_API SCM scm_last_stack_frame (SCM obj);
-SCM_API SCM scm_frame_number (SCM frame);
-SCM_API SCM scm_frame_source (SCM frame);
-SCM_API SCM scm_frame_procedure (SCM frame);
-SCM_API SCM scm_frame_arguments (SCM frame);
-SCM_API SCM scm_frame_previous (SCM frame);
-SCM_API SCM scm_frame_next (SCM frame);
-SCM_API SCM scm_frame_real_p (SCM frame);
-SCM_API SCM scm_frame_procedure_p (SCM frame);
-SCM_API SCM scm_frame_evaluating_args_p (SCM frame);
-SCM_API SCM scm_frame_overflow_p (SCM frame);
-
SCM_INTERNAL void scm_init_stacks (void);
#endif /* SCM_STACKS_H */