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<p>I agree that functionalities like these are useful.</p>
<p>IIRC, there were a bunch of design questions - such as, whether
to make this functionalities available only for memory segments,
or also for byte buffer, and as to whether customization was
required (especially for the hexdump format).</p>
<p>IMHO, the most interesting (and Panama related) part is this
(e.g. memory inspection):</p>
<p><a class="moz-txt-link-freetext" href="https://github.com/openjdk/panama-foreign/pull/715/files">https://github.com/openjdk/panama-foreign/pull/715/files</a></p>
<p>Which allows to dump the contents of a memory segment using a
memory layout (with some names attached). This allows to render
structs and unions with ease, and it amounts at a single extra
method on memory segment (or, from the other side, on memory
layout).<br>
</p>
<p>The HexDump functionality is, IMHO, more general, and I believe
it deserves a more central place in the JDK, rather than some
class in java.lang.foreign. In principle, users might want to
produce hexdumps of byte buffers, segments, byte arrays,
Collection<Byte>, ...</p>
<p>(as I write this, I realize that the same argument might be
applied to the memory inspection stuff, but I think it's a
defensible move to keep layouts and segments together, which we
have done in other places).</p>
<p>Which of the two pieces of functionalities you find yourselves
more in need of? Memory inspection (e.g. segment + layout ->
string), or hexdump? Or both?</p>
<p>Cheers<br>
Maurizio<br>
</p>
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<div class="moz-cite-prefix">On 23/01/2023 10:01, Johannes
Lichtenberger wrote:<br>
</div>
<blockquote type="cite" cite="mid:CAGXNUvZ25M27O396SeYsOP0jrOS7oRFiN_A9qGiCXxEk8E95ug@mail.gmail.com">
<div dir="ltr">Wow, this would be immensely useful to debug stuff,
IMHO...
<div><br>
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<div>kind regards</div>
<div>Johannes</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Am Sa., 21. Jan. 2023 um
22:07 Uhr schrieb Gavin Ray <<a href="mailto:ray.gavin97@gmail.com" moz-do-not-send="true" class="moz-txt-link-freetext">ray.gavin97@gmail.com</a>>:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">A while ago, Per was working on a PR for
visualizing MemorySegment and Buffer types
<div dir="auto"><br>
</div>
<div dir="auto">It was very valuable:</div>
<div dir="auto"><br>
</div>
<div dir="auto"><a href="https://github.com/openjdk/panama-foreign/pull/695" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">https://github.com/openjdk/panama-foreign/pull/695</a></div>
<div dir="auto"><br>
</div>
<div dir="auto">Does anyone know the status of this? I'd be
grateful to have it available.</div>
</div>
</blockquote>
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