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[217.227.105.53]) by smtp.gmail.com with ESMTPSA id y5-20020a50ce05000000b00457607603f9sm4652756edi.67.2022.09.28.22.29.25 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Sep 2022 22:29:26 -0700 (PDT) Received-SPF: pass client-ip=2a00:1450:4864:20::629; envelope-from=gerd.moellmann@gmail.com; helo=mail-ej1-x629.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:243866 Archived-At: In its current form, interval tree iteration works like this: 1. Call begin_iteration(T) to iterate over tree T 2. do stuff 3. Call end_iteration(T) with the following rules: - Begin_iteration and end_iteration must be paired. - There can be only one iteration per tree at a time. Nested iteration over the same tree is not supported (abort). - No GC may happen in step 2. This is because mark_buffer iterates over buffer overlays. I think this is an exceedingly dangerous design.