-/* classes: h_files */
-
-#ifndef SCM_STACKS_H
-#define SCM_STACKS_H
-
-/* Copyright (C) 1995,1996,2000,2001, 2004, 2006, 2008 Free Software Foundation, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-\f
-
-#include "libguile/__scm.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_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_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_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)
-
-\f
-
-SCM_API SCM scm_stack_p (SCM obj);
-SCM_API SCM scm_make_stack (SCM obj, SCM args);
-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 */
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End:
-*/
+/* classes: h_files */
+
+#ifndef SCM_STACKS_H
+#define SCM_STACKS_H
+
+/* Copyright (C) 1995,1996,2000,2001, 2004, 2006, 2008 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+\f
+
+#include "libguile/__scm.h"
+#include "libguile/frames.h"
+
+/* {Frames and stacks}
+ */
+
+SCM_API SCM scm_stack_type;
+
+#define SCM_STACK_LAYOUT \
+ "pw" /* len */ \
+ "pw" /* id */ \
+ "pw" /* 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_FRAMEP(obj) (SCM_VM_FRAME_P (obj))
+
+
+\f
+
+SCM_API SCM scm_stack_p (SCM obj);
+SCM_API SCM scm_make_stack (SCM obj, SCM args);
+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_INTERNAL void scm_init_stacks (void);
+
+#endif /* SCM_STACKS_H */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff