| 1 | /* classes: h_files */ |
| 2 | |
| 3 | #ifndef SCM_STACKS_H |
| 4 | #define SCM_STACKS_H |
| 5 | |
| 6 | /* Copyright (C) 1995,1996,2000,2001, 2004, 2006, 2008 Free Software Foundation, Inc. |
| 7 | * |
| 8 | * This library is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public License |
| 10 | * as published by the Free Software Foundation; either version 3 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This library is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with this library; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 21 | * 02110-1301 USA |
| 22 | */ |
| 23 | |
| 24 | \f |
| 25 | |
| 26 | #include "libguile/__scm.h" |
| 27 | #include "libguile/frames.h" |
| 28 | |
| 29 | /* {Frames and stacks} |
| 30 | */ |
| 31 | |
| 32 | SCM_API SCM scm_stack_type; |
| 33 | |
| 34 | #define SCM_STACK_LAYOUT \ |
| 35 | "pw" /* len */ \ |
| 36 | "pw" /* id */ \ |
| 37 | "pw" /* frame */ |
| 38 | |
| 39 | #define SCM_STACKP(obj) (SCM_STRUCTP (obj) && scm_is_eq (SCM_STRUCT_VTABLE (obj), scm_stack_type)) |
| 40 | #define SCM_STACK_LENGTH(obj) (scm_to_long (SCM_STRUCT_SLOT_REF (obj,0))) |
| 41 | #define SCM_SET_STACK_LENGTH(obj,f) (SCM_STRUCT_SLOT_SET (obj,0,scm_from_long (f))) |
| 42 | #define SCM_STACK_ID(obj) (SCM_STRUCT_SLOT_REF (obj,1)) |
| 43 | #define SCM_SET_STACK_ID(obj,f) (SCM_STRUCT_SLOT_SET (obj,1,f)) |
| 44 | #define SCM_STACK_FRAME(obj) (SCM_STRUCT_SLOT_REF (obj,2)) |
| 45 | #define SCM_SET_STACK_FRAME(obj,f) (SCM_STRUCT_SLOT_SET (obj,2,f)) |
| 46 | |
| 47 | #define SCM_FRAMEP(obj) (SCM_VM_FRAME_P (obj)) |
| 48 | |
| 49 | |
| 50 | \f |
| 51 | |
| 52 | SCM_API SCM scm_stack_p (SCM obj); |
| 53 | SCM_API SCM scm_make_stack (SCM obj, SCM args); |
| 54 | SCM_API SCM scm_stack_id (SCM stack); |
| 55 | SCM_API SCM scm_stack_ref (SCM stack, SCM i); |
| 56 | SCM_API SCM scm_stack_length (SCM stack); |
| 57 | |
| 58 | SCM_INTERNAL void scm_init_stacks (void); |
| 59 | |
| 60 | #endif /* SCM_STACKS_H */ |
| 61 | |
| 62 | /* |
| 63 | Local Variables: |
| 64 | c-file-style: "gnu" |
| 65 | End: |
| 66 | */ |