<div dir="ltr"><div>BTW.<br><br></div><div>If you do not advise to specialize OPERATE, how do you pass arguments to PERFORM?</div><div><br></div><div>MA<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Mar 19, 2021 at 7:45 PM Robert Goldman <<a href="mailto:rpgoldman@sift.info">rpgoldman@sift.info</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>




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<p dir="auto">P.S. I don't recommend writing your own <code style="background-color:rgb(247,247,247);border-radius:3px;margin:0px;padding:0px 0.4em" bgcolor="#F7F7F7">OPERATE</code> methods -- <code style="background-color:rgb(247,247,247);border-radius:3px;margin:0px;padding:0px 0.4em" bgcolor="#F7F7F7">OPERATE</code> is quite complicated and messing with it could lead you into very deep water. I don't believe you should ever need to.</p>

<p dir="auto">On 19 Mar 2021, at 13:42, Robert Goldman wrote:</p>

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<p dir="auto">Hi. I'm happy to help you work through this, but so that it doesn't recur as a problem, I'd appreciate it if you would help me fix the manual's discussion of this.</p>

<p dir="auto">First, have you read this page <a href="https://common-lisp.net/project/asdf/asdf.html#Creating-new-operations" style="color:rgb(57,131,196)" target="_blank">https://common-lisp.net/project/asdf/asdf.html#Creating-new-operations</a> ?</p>

<p dir="auto">Please have a look at that -- it's not very long -- and let us know what more needs to be supplied.</p>

<p dir="auto">I note the discussion of <code style="background-color:rgb(247,247,247);border-radius:3px;margin:0px;padding:0px 0.4em" bgcolor="#F7F7F7">operation-done-p</code>. I suspect that is your problem -- your new operation is not aware that it needs to be performed.</p>

<p dir="auto">This page is substantially redundant with the pages on the object model, and should be beefed up with cross-references, and more inclusion of docstrings...</p>

<p dir="auto">On 19 Mar 2021, at 12:58, Marco Antoniotti wrote:</p>

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<blockquote style="border-left:2px solid rgb(119,119,119);color:rgb(119,119,119);margin:0px 0px 5px;padding-left:5px"><div id="gmail-m_-256831916411433079543D63DF3-DA91-4518-9292-B16B45D962E2"><div dir="ltr"><div><div><div><div>Hi</div><div><br></div><div>I am trying to create a new ASDF:OPERATION, but I must be missing something and the manual (or Google) does not seem to help much.<br><br></div>How do you create a new operation, which may be quite simple?  Or better, how do you get PERFORM and/or OPERATE to actually do something for you.<br><br></div>I know I should RTFM, but in this case it is more of a RTFC, which is far more difficult.<br><br></div>I tried the following<br><br></div><div><span style="font-family:monospace">(defclass my-op (non-propagating-operation) ())</span></div><div><span style="font-family:monospace"><br></span></div><div><span style="font-family:monospace">(defmethod perform ((o my-op) (s system))<br></span></div><div><span style="font-family:monospace">   (print 42))<br><br></span></div><div><span style="font-family:monospace">(defmethod operate ((o my-op) (s system) &key &allow-other-keys)</span></div><div><span style="font-family:monospace">   (print 666))</span></div><div><br></div><div>But then, doing<br><br></div><div><span style="font-family:monospace">cl-user 42> (operate 'my-op (find-system "somesys") :bar 1024)<br></span></div><div><span style="font-family:monospace">#<MY-OP ><br></span></div><div><span style="font-family:monospace">#<ASDF/PLAN:SEQUENTIAL-PLAN 2301B97B></span></div><div><br></div><div>is all I get.</div><div><br></div><div>Any tutorial or advice?<br><br></div><div>Thanks<br></div><div><div><div><div><br>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">Marco Antoniotti, Associate Professor</span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre-wrap;word-spacing:0px;text-decoration:none">             </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre-wrap;word-spacing:0px;text-decoration:none">    </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">tel.</span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;text-decoration:none;display:inline;float:none;white-space:pre-wrap"> </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">+39 - 02 64 48 79 01</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">DISCo, Università Milano Bicocca U14 2043</span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre-wrap;word-spacing:0px;text-decoration:none">   </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre-wrap;word-spacing:0px;text-decoration:none">    </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre-wrap;word-spacing:0px;text-decoration:none"></span><a href="http://dcb.disco.unimib.it/" style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" target="_blank">http://dcb.disco.unimib.it</a><br style="color:rgb(0,0,0);font-fam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</blockquote></div><br clear="all"><br>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">Marco Antoniotti, Associate Professor</span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre;word-spacing:0px;text-decoration:none">             </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre;word-spacing:0px;text-decoration:none"> </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">tel.</span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;text-decoration:none;display:inline;float:none;white-space:pre"> </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">+39 - 02 64 48 79 01</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">DISCo, Università Milano Bicocca U14 2043</span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre;word-spacing:0px;text-decoration:none">     </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre;word-spacing:0px;text-decoration:none"> </span><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:pre;word-spacing:0px;text-decoration:none"></span><a href="http://dcb.disco.unimib.it/" style="font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" target="_blank">http://dcb.disco.unimib.it</a><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">Viale Sarca 336</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline;float:none">I-20126 Milan (MI) ITALY</span><br></div></div></div></div>