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<font size="4"><font face="monospace">As Maurizio said, this JEP is
a refinement of ideas that were initially explored in the "lazy
statics" JEP. In a way, this JEP reveals the "lazy statics" JEP
as skipping a step, jumping to a language and VM when much of
the benefit can be achieved by a libraries approach. It is
possible that at some point, after suitable progress and
validation, we may decide to take the step of pushing it further
into the language/VM, but we've made the deliberate choice to
push such steps into the future. <br>
<br>
In the meantime, there is no reason we cannot have multiple
"inconsistent" draft or candidate JEPs, so there is no need to
"merge" anything right now. <br>
<br>
<br>
</font></font><br>
<div class="moz-cite-prefix">On 7/27/2023 12:09 PM, Remi Forax
wrote:<br>
</div>
<blockquote type="cite" cite="mid:1265545759.4350538.1690474147671.JavaMail.zimbra@univ-eiffel.fr">
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<div>Hello,<br data-mce-bogus="1">
</div>
<div>Are you aware of the lazy static final fields proposal ?<br>
</div>
<div> <a href="https://bugs.openjdk.org/browse/JDK-8209964" moz-do-not-send="true" class="moz-txt-link-freetext">https://bugs.openjdk.org/browse/JDK-8209964</a><br data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div>In think both proposals should be merged.<br data-mce-bogus="1">
</div>
<div><br data-mce-bogus="1">
</div>
<div>Rémi<br data-mce-bogus="1">
</div>
<div><br>
</div>
<hr id="zwchr" data-marker="__DIVIDER__">
<div data-marker="__HEADERS__">
<blockquote style="border-left:2px solid
#1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From:
</b>"Per-Ake Minborg" <a class="moz-txt-link-rfc2396E" href="mailto:per-ake.minborg@oracle.com"><per-ake.minborg@oracle.com></a><br>
<b>To: </b>"leyden-dev" <a class="moz-txt-link-rfc2396E" href="mailto:leyden-dev@openjdk.org"><leyden-dev@openjdk.org></a><br>
<b>Sent: </b>Thursday, July 27, 2023 5:52:46 PM<br>
<b>Subject: </b>Draft JEP Announcement: "Computed
Constants"<br>
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<blockquote style="border-left:2px solid
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<div style="font-family: Calibri, Arial, Helvetica,
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<span class="x_elementToProof" style="font-size: 12pt;
margin: 0px; background-color: rgb(255, 255, 255);"><span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">Hi all,</span></span></div>
<div style="font-family: Calibri, Arial, Helvetica,
sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof">
<div class="x_elementToProof" style="font-size: 12pt;
margin: 0px; background-color: rgb(255, 255, 255);">
<br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> Maurizio and
I have drafted a JEP for computed constants, which are</span><br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> immutable
value holders that are initialized at most once. They
offer</span><br class="x_ContentPasted0
ContentPasted0" style="font-size: 14.6667px; color:
rgb(36, 36, 36); background-color: rgb(255, 255,
255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> the
performance and safety benefits of final fields while
offering</span><br class="x_ContentPasted0
ContentPasted0" style="font-size: 14.6667px; color:
rgb(36, 36, 36); background-color: rgb(255, 255,
255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> greater
flexibility as to the timing of initialization. In
the</span><br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> context of
Leyden, they could be one basis for shifting
computation</span><br class="x_ContentPasted0
ContentPasted0" style="font-size: 14.6667px; color:
rgb(36, 36, 36); background-color: rgb(255, 255,
255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> both forward
and backward in time.</span><br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
<br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
</div>
<div class="x_elementToProof" style="font-size: 12pt;
margin: 0px; background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> The draft is
here:<span class="x_ContentPasted0 ContentPasted0" style="margin:0px"> </span></span><a href="https://openjdk.org/jeps/8312611" target="_blank" rel="noopener noreferrer" class="x_ContentPasted0 ContentPasted0
moz-txt-link-freetext" style="font-size: 14.6667px;
margin: 0px; background-color: rgb(255, 255, 255);" moz-do-not-send="true">https://openjdk.org/jeps/8312611</a><br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
</div>
<div class="x_elementToProof" style="font-size: 12pt;
margin: 0px; background-color: rgb(255, 255, 255);">
<br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> Now that the
Leyden repo is open, I’ll publish the prototype code
to a</span><br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> new branch
there shortly.</span><br class="x_ContentPasted0
ContentPasted0" style="font-size: 14.6667px; color:
rgb(36, 36, 36); background-color: rgb(255, 255,
255);">
<br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
</div>
<div class="x_elementToProof" style="font-size: 12pt;
margin: 0px; background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> Comments are
welcome!</span><br class="x_ContentPasted0
ContentPasted0" style="font-size: 14.6667px; color:
rgb(36, 36, 36); background-color: rgb(255, 255,
255);">
</div>
<div class="x_elementToProof" style="font-size: 12pt;
margin: 0px; background-color: rgb(255, 255, 255);">
<br class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);">
<span class="x_ContentPasted0 ContentPasted0" style="font-size: 14.6667px; margin: 0px; display:
inline !important; color: rgb(36, 36, 36);
background-color: rgb(255, 255, 255);"> Best, Per</span></div>
<br>
</div>
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