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<p>Hi Tony,</p>
<p><br>
</p>
<p>no, the semantics of <b>Debugger's Abandon</b> do not have changed: When you press Abandon, all ensure: contexts will be run that are not yet active.</p>
<p><br>
</p>
<p>Example 1:</p>
<p><br>
</p>
<p></p>
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<div>[x := 1.</div>
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<div>self halt]</div>
</div>
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<div><span style="white-space:pre"></span>ensure:</div>
</div>
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<div><span style="white-space:pre"></span>[x := 2].</div>
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<div><br>
</div>
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<p><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">If you </span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">abandon
the debugger, </span>x will be set to <b>2</b>.</p>
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<p></p>
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<p><br>
</p>
<p>Example 2:</p>
<p><br>
</p>
<p></p>
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<div>[x := 1.</div>
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<div>^1]</div>
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<div><span style="white-space:pre"></span>ensure:</div>
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<div><span style="white-space:pre"></span>[x := 2.</div>
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<div><span style="white-space:pre"></span>self halt.</div>
</div>
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<div><span style="white-space:pre"></span>x := 3].</div>
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<div><br>
</div>
</div>
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<div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">If you </span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">abandon
the debugger, </span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">x will be set to
<b>2</b> (but not to 3 - so the active ensure: context will *not* be continued).</span></div>
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<div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"><br>
</span></div>
<div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">The only thing that has changed is the semantics of
<b>Process >> #terminate:</b></span></div>
<p></p>
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<br>
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Example 3:</div>
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<br>
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<div>[[x := 1.</div>
<div>Processor terminateActive]</div>
<div><span style="white-space:pre"></span>ensure:</div>
<div><span style="white-space:pre"></span>[x := 2]] fork.</div>
<br>
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x will be set to <b>2</b>.</div>
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<br>
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Example 4:</div>
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<br>
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<div>[[:exit | [x := 1.</div>
<div>exit value]</div>
<div><span style="white-space:pre"></span>ensure:</div>
<div><span style="white-space:pre"></span>[x := 2.</div>
<div><span style="white-space:pre"></span>Processor terminateActive.</div>
<div><span style="white-space:pre"></span>x := 3]] valueWithExit] fork.</div>
<div><br>
</div>
<div>In Squeak 5.3 and earlier, x will be set to <b>2</b> only.</div>
<div>In Squeak 6.0 and newer, x will be set to <b>3</b>, so the active ensure context will indeed be completed during termination.</div>
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<br>
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<b>To restore the old termination semantics</b> in Squeak 6.0, you can send <b>#terminateAggressively</b> instead of #terminate. This is what Debugger's Abandon uses under the hood.</div>
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<br>
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You can find more examples in DebuggerTests no. 19 - 24. For the termination semantics, see also the tests in the <span>AbstractProcessTest hierarchy.</span></div>
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<span><br>
</span></div>
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<span>HTH,</span></div>
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<span>Christoph</span></div>
<br>
<div style="color: rgb(0, 0, 0);">
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<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>Von:</b> Squeak-dev <squeak-dev-bounces@lists.squeakfoundation.org> im Auftrag von Tony Garnock-Jones <tonyg@leastfixedpoint.com><br>
<b>Gesendet:</b> Dienstag, 21. Juni 2022 10:50 Uhr<br>
<b>An:</b> The general-purpose Squeak developers list<br>
<b>Betreff:</b> [squeak-dev] Abandoning in debugger and ensure: blocks</font>
<div> </div>
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<font size="2"><span style="font-size:10pt;">
<div class="PlainText">Hi all,<br>
<br>
Is it true that with recent changes to termination, if I "Abandon" a <br>
process in the debugger, that process's `ensure:` blocks will NOT run?<br>
<br>
That's a change from before, right?<br>
<br>
Or am I mistaken?<br>
<br>
If that's genuinely the case, is there some mechanism I should be using <br>
to `reallyEnsure:` that something happens as part of process termination?<br>
<br>
Thanks!<br>
<br>
Tony<br>
<br>
</div>
</span></font></div>
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