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96589bd303
* module/ice-9/boot-9.scm(symbol-property, set-symbol-property!) (symbol-property-remove!): Remove. * module/ice-9/boot-9.scm (make-record-type): Name must be symbol. (record-constructor): Alias record-type-constructor. (make-module): Require size to be zero. Should fix this with keyword args :/ (try-load-module): Inline definition of try-module-autoload. Remove try-module-autoload binding. (make-soft-port): Add deprecation warning, so we can remove it eventually. * module/ice-9/save-stack.scm: Remove deprecation comment. * module/ice-9/top-repl.scm: * module/ice-9/threads.scm: Export instead of replace bindings. * module/language/bytecode.scm: Remove instruction-arity et al. * module/language/tree-il/analyze.scm: Remove deprecated unbound-variable-analysis and macro-use-before-definition-analysis. * module/rnrs.scm: Fix syntax-case export now that module and value namespaces are separate. * module/system/base/language.scm (invalidate-compilation-cache!): Remove. * module/system/base/language.scm (*current-language*): Remove.
57 lines
2.1 KiB
Scheme
57 lines
2.1 KiB
Scheme
;;; -*- mode: scheme; coding: utf-8; -*-
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;;;; Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2014,2025
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;;;; 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
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of 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,
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;;;; but 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 02110-1301 USA
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;;;;
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;;; Commentary:
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;;; An older approack to debugging, in which the user installs a pre-unwind
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;;; handler that saves the stack at the time of the error. The last stack can
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;;; then be debugged later.
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;;;
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;;; Code:
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(define-module (ice-9 save-stack)
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#:export (stack-saved?
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the-last-stack
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save-stack))
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;; FIXME: stack-saved? is broken in the presence of threads.
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(define stack-saved? #f)
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(define the-last-stack (make-fluid))
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(define (save-stack . narrowing)
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(if (not stack-saved?)
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(begin
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(let ((stacks (fluid-ref %stacks)))
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(fluid-set! the-last-stack
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;; (make-stack obj inner outer inner outer ...)
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;;
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;; In this case, cut away the make-stack frame, the
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;; save-stack frame, and then narrow as specified by the
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;; user, delimited by the nearest start-stack invocation,
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;; if any.
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(apply make-stack #t
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2
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(if (pair? stacks) (cdr stacks) 0)
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narrowing)))
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(set! stack-saved? #t))))
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