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ea6b18e82f
* libguile/control.h (SCM_F_PROMPT_INLINE, SCM_PROMPT_INLINE_P): Remove; prompts always have "inline" handlers now. * libguile/control.c (scm_c_make_prompt): Remove inline_handler_p arg. * libguile/vm-i-system.c (prompt): * module/language/assembly/decompile-bytecode.scm (decode-load-program): * module/language/assembly/compile-bytecode.scm (write-bytecode): Adapt to prompt changes. * module/language/glil.scm (make-glil-prompt, glil-prompt-inline?): Remove inline? flag. (parse-glil, unparse-glil): * module/language/glil/compile-assembly.scm (glil->assembly): Adapt to <glil-prompt> change. * module/language/tree-il/compile-glil.scm (flatten): Require the handler of a <prompt> to be a lambda-case. * module/language/tree-il/primitives.scm (*primitive-expand-table*): Ensure that the handler of a <prompt> is a lambda-case. * module/language/tree-il/inline.scm (inline!): Simplify a degenerate case: (lambda args (apply (lambda ...) args)) => (lambda ...).
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/* Copyright (C) 2010 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "libguile/_scm.h"
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#include "libguile/control.h"
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#include "libguile/vm.h"
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SCM scm_atcontrol (SCM, SCM, SCM);
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SCM_DEFINE (scm_atcontrol, "@control", 3, 0, 0,
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(SCM tag, SCM type, SCM args),
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"Transfer control to the handler of a delimited continuation.")
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#define FUNC_NAME s_scm_atcontrol
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{
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abort ();
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return SCM_UNSPECIFIED;
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}
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#undef FUNC_NAME
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SCM scm_atprompt (SCM, SCM, SCM, SCM);
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SCM_DEFINE (scm_atprompt, "@prompt", 4, 0, 0,
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(SCM tag, SCM thunk, SCM handler, SCM pre_unwind_handler),
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"Begin a delimited continuation.")
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#define FUNC_NAME s_scm_atprompt
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{
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abort ();
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return SCM_UNSPECIFIED;
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}
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#undef FUNC_NAME
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SCM
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scm_c_make_prompt (SCM vm, SCM k, SCM handler, scm_t_uint8 escape_only_p)
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{
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scm_t_bits tag;
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SCM ret;
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struct scm_prompt_registers *regs;
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tag = scm_tc7_prompt;
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if (escape_only_p)
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tag |= SCM_F_PROMPT_ESCAPE;
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ret = scm_words (tag, 5);
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regs = scm_gc_malloc_pointerless (sizeof (*regs), "prompt registers");
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regs->fp = SCM_VM_DATA (vm)->fp;
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regs->sp = SCM_VM_DATA (vm)->sp;
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regs->ip = SCM_VM_DATA (vm)->ip;
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SCM_SET_CELL_OBJECT (ret, 1, k);
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SCM_SET_CELL_WORD (ret, 2, (scm_t_bits)regs);
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SCM_SET_CELL_OBJECT (ret, 3, scm_i_dynwinds ());
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SCM_SET_CELL_OBJECT (ret, 4, handler);
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return ret;
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}
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static void
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scm_init_control (void)
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{
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#ifndef SCM_MAGIC_SNARFER
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#include "libguile/control.x"
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#endif
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}
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void
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scm_register_control (void)
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{
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scm_c_register_extension ("libguile", "scm_init_control",
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(scm_t_extension_init_func)scm_init_control,
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NULL);
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}
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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