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The following commit(s) were added to refs/heads/asf-site by this push:
new 5a7f0bc4 2026/07/11 05:30:02: Generated dev website from
groovy-website@83b0540
5a7f0bc4 is described below
commit 5a7f0bc47f6a7a9868d286e0e83863f00f450a88
Author: jenkins <[email protected]>
AuthorDate: Sat Jul 11 05:30:02 2026 +0000
2026/07/11 05:30:02: Generated dev website from groovy-website@83b0540
---
search/search-index.json | 4 ++--
wiki/GEP-27.html | 52 +++++++++++++++++++++++++++++-------------------
wiki/geps.html | 2 +-
3 files changed, 34 insertions(+), 24 deletions(-)
diff --git a/search/search-index.json b/search/search-index.json
index 591a29b5..879e75f4 100644
--- a/search/search-index.json
+++ b/search/search-index.json
@@ -891,7 +891,7 @@
{
"id": "wiki/GEP-27.html",
"title": "The Apache Groovy programming language - Developer docs -
GEP-27",
- "content": "The Apache Groovy programming language - Developer docs -
GEP-27 Socialize Discuss on the mailing list Groovy on X Groovy on Bluesky
Groovy on Mastodon Groovy on LinkedIn Events and conferences Source code on
GitHub Report issues in Jira Stack Overflow questions Slack Community You are
using an outdated browser. Please upgrade your browser to improve your
experience. Apache Groovy™ Learn Documentation Download Support
Contribute Ecosystem Blog posts Socialize GE [...]
+ "content": "The Apache Groovy programming language - Developer docs -
GEP-27 Socialize Discuss on the mailing list Groovy on X Groovy on Bluesky
Groovy on Mastodon Groovy on LinkedIn Events and conferences Source code on
GitHub Report issues in Jira Stack Overflow questions Slack Community You are
using an outdated browser. Please upgrade your browser to improve your
experience. Apache Groovy™ Learn Documentation Download Support
Contribute Ecosystem Blog posts Socialize GE [...]
"url": "wiki/GEP-27.html",
"site": "dev"
},
@@ -933,7 +933,7 @@
{
"id": "wiki/geps.html",
"title": "The Apache Groovy programming language - GEPs",
- "content": "The Apache Groovy programming language - GEPs Socialize
Discuss on the mailing list Groovy on X Groovy on Bluesky Groovy on Mastodon
Groovy on LinkedIn Events and conferences Source code on GitHub Report issues
in Jira Stack Overflow questions Slack Community You are using an outdated
browser. Please upgrade your browser to improve your experience. Apache
Groovy™ Learn Documentation Download Support Contribute Ecosystem Blog
posts Socialize GEPs GEP-1 GEP-2 GEP- [...]
+ "content": "The Apache Groovy programming language - GEPs Socialize
Discuss on the mailing list Groovy on X Groovy on Bluesky Groovy on Mastodon
Groovy on LinkedIn Events and conferences Source code on GitHub Report issues
in Jira Stack Overflow questions Slack Community You are using an outdated
browser. Please upgrade your browser to improve your experience. Apache
Groovy™ Learn Documentation Download Support Contribute Ecosystem Blog
posts Socialize GEPs GEP-1 GEP-2 GEP- [...]
"url": "wiki/geps.html",
"site": "dev"
},
diff --git a/wiki/GEP-27.html b/wiki/GEP-27.html
index 3076a5de..489f6e0c 100644
--- a/wiki/GEP-27.html
+++ b/wiki/GEP-27.html
@@ -63,7 +63,7 @@
</ul>
</div>
</div>
- </div><div id='content' class='page-1'><div
class='row'><div class='row-fluid'><div class='col-lg-3'><ul
class='nav-sidebar'><li><a href='geps.html'>GEP index</a></li><li
class='active'><a href='#doc'>GEP-27</a></li><li><a href='#_abstract'
class='anchor-link'>Abstract</a></li><li><a href='#_motivation'
class='anchor-link'>Motivation</a></li><li><a
href='#_background_how_closures_and_lambdas_compile_today'
class='anchor-link'>Background: how closures and lambdas c [...]
+ </div><div id='content' class='page-1'><div
class='row'><div class='row-fluid'><div class='col-lg-3'><ul
class='nav-sidebar'><li><a href='geps.html'>GEP index</a></li><li
class='active'><a href='#doc'>GEP-27</a></li><li><a href='#_abstract'
class='anchor-link'>Abstract</a></li><li><a href='#_motivation'
class='anchor-link'>Motivation</a></li><li><a
href='#_background_how_closures_and_lambdas_compile_today'
class='anchor-link'>Background: how closures and lambdas c [...]
<div class="sectionbody">
<div class="sidebarblock">
<div class="content">
@@ -147,7 +147,7 @@
<strong>Last modification</strong>
</td>
<td class="hdlist2">
-<p>2026-07-10</p>
+<p>2026-07-11</p>
</td>
</tr>
</table>
@@ -687,15 +687,15 @@ needs owner-correct retargeting, see <em>Reference
implementation</em>.)</p>
</div>
</div>
<div class="sect1">
-<h2 id="_groovy_6_0_deliverables_pending_discussion_and_findings">Groovy 6.0
deliverables (pending discussion and findings)</h2>
+<h2 id="_groovy_6_0_deliverables_merged">Groovy 6.0 deliverables (merged)</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The Groovy 6 target is the sound-by-construction slice: eliminating the
generated class for SAM
-lambdas. Both pieces below are implemented on the first-step branch behind a
single flag; the
-mutated-capture and serializable cases correctly stay on the class-based
path.</p>
+lambdas. Both pieces below are merged (GROOVY-12143), behind the opt-in
<code>groovy.target.lambda.hoist</code>
+flag; the mutated-capture and serializable cases correctly stay on the
class-based path.</p>
</div>
<div class="sect2">
-<h3
id="_piece_1_primary_eliminate_the_class_for_non_capturing_sam_lambdas">Piece 1
(primary): eliminate the class for non-capturing SAM lambdas</h3>
+<h3
id="_piece_1_merged_eliminate_the_class_for_non_capturing_sam_lambdas">Piece 1
(merged): eliminate the class for non-capturing SAM lambdas</h3>
<div class="paragraph">
<p>For a statically compiled, <strong>non-capturing</strong>, non-serializable
lambda targeting a functional
interface, do what Java does: emit the body as a <code>private static</code>
synthetic method on the
@@ -749,13 +749,13 @@ class-visitor changes the closure work needs.</p>
</div>
</div>
<div class="sect2">
-<h3 id="_piece_2_implemented_read_only_capturing_sam_lambdas">Piece 2
(implemented): read-only-capturing SAM lambdas</h3>
+<h3 id="_piece_2_merged_read_only_capturing_sam_lambdas">Piece 2 (merged):
read-only-capturing SAM lambdas</h3>
<div class="paragraph">
<p>A capturing SAM lambda today instantiates its lambda class to hold the
captured values (Groovy
even <code>Reference</code>-wraps them). The Java-style form uses a
<code>static</code> implementation method taking the
captured values as leading arguments, with the metafactory capturing them
directly — which <em>also</em>
-removes the <code>Closure</code> allocation and the <code>Reference</code>
wrapping. This is implemented on the same
-first-step branch for the <strong>read-only</strong> capture case (the common
one): captured values are passed as
+removes the <code>Closure</code> allocation and the <code>Reference</code>
wrapping. This is merged for the <strong>read-only</strong>
+capture case (the common one): captured values are passed as
typed leading parameters. A lambda that <strong>mutates</strong> a capture
still needs the shared <code>Reference</code>, so
it correctly declines and keeps its class. This lands the bulk of the
capturing benefit in Groovy 6
behind the same flag; only mutated-capture lambdas remain on the class-based
path.</p>
@@ -832,15 +832,15 @@ means byte-for-byte today’s behaviour.</p>
<thead>
<tr>
<th class="tableblock halign-left valign-top">Concern</th>
-<th class="tableblock halign-left valign-top">Flag (proposed)</th>
+<th class="tableblock halign-left valign-top">Flag</th>
<th class="tableblock halign-left valign-top">Default</th>
</tr>
</thead>
<tbody>
<tr>
-<td class="tableblock halign-left valign-top"><p
class="tableblock">Non-capturing SAM lambda hoisting (Groovy 6)</p></td>
-<td class="tableblock halign-left valign-top"><p
class="tableblock"><code>groovy.target.lambda.hoist.disabled</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">off (i.e.
hoisting <strong>on</strong>), opt-out</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">SAM lambda
hoisting (Groovy 6, merged)</p></td>
+<td class="tableblock halign-left valign-top"><p
class="tableblock"><code>groovy.target.lambda.hoist</code></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">off
(opt-in)</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Closure
packing under <code>@CompileStatic</code> (Groovy 7)</p></td>
@@ -1007,7 +1007,7 @@ development:</p>
<div class="ulist">
<ul>
<li>
-<p><strong>Lambda first step (Groovy 6 candidate).</strong> Implemented in
<code>StaticTypesLambdaWriter</code>: both
+<p><strong>Lambda first step (Groovy 6, merged).</strong> Implemented in
<code>StaticTypesLambdaWriter</code>: both
non-capturing <strong>and</strong> read-only-capturing SAM lambda classes are
eliminated, with the impl hoisted
to <code>private static</code> methods on the enclosing class (captured values
become leading parameters)
and the metafactory bootstrapped directly against them — the non-capturing
case yielding a
@@ -1015,9 +1015,9 @@ zero-alloc singleton. Behaviour and class-count
reductions are verified as above
methods are confirmed to carry full debug metadata (see <em>IDE and tooling
considerations</em>). Cases
that need the shared <code>Reference</code> or closure identity — mutated
captures, instance access,
serializable and nested-function lambdas — correctly decline and keep their
class. The whole
-first step sits behind the <code>groovy.target.lambda.hoist</code> flag. The
existing lambda tests that
-assert the old bytecode shape need updating to the new structure (behaviour is
unchanged); that
-test migration is the bulk of the remaining first-step work.</p>
+first step is merged behind the opt-in <code>groovy.target.lambda.hoist</code>
flag; the lambda tests that
+assert the old bytecode shape are skipped under the flag, with their migration
to the new
+structure deferred to when the default flips.</p>
</li>
<li>
<p><strong>Closure packing (Groovy 7 direction).</strong> A
<code>ClosureWriter</code>-based spike (with a shared
@@ -1025,8 +1025,8 @@ test migration is the bulk of the remaining first-step
work.</p>
arbitrary-depth nesting, written captures via <code>Reference</code>, implicit
<code>it</code> — under both compilation
modes. It confirms the writer is the right home (no
<code>@CompileStatic</code> boundary, unlike an
AST-transform approach), establishes the soundness cliff empirically, and
confirms what is
-preserved (<code>curry</code>/<code>memoize</code>/<code>trampoline</code> all
keep working on the adapter). Two of the three
-safety layers from <em>Guarding the dynamic trust assertion</em> are now
implemented and validated:</p>
+preserved (<code>curry</code>/<code>memoize</code>/<code>trampoline</code> all
keep working on the adapter). All three safety layers
+from <em>Guarding the dynamic trust assertion</em> are now implemented and
validated:</p>
<div class="ulist">
<ul>
<li>
@@ -1042,14 +1042,24 @@ into a field/property/index, returned, appended with
<code><<</code>, or p
kept as a class, moving the clearest delegate-risk cases from a runtime throw
to a compile-time
non-event.</p>
</li>
+<li>
+<p>the <strong>decline diagnostics</strong> — <code>@PackedClosures(mode =
WARN | STRICT)</code> surfaces closures that could
+not be packed (a compiler warning or error, with the reason and source
position); <code>DISABLED</code> opts
+a scope out entirely. The automatic flag path stays lenient.</p>
+</li>
</ul>
</div>
</li>
</ul>
</div>
<div class="paragraph">
-<p>The remaining Groovy 7 work is the <strong>capability/escape
analysis</strong> for the <code>@CompileStatic</code> automatic
-path (proving packing sound so no annotation is needed) and typed static
dispatch.</p>
+<p>Also implemented and validated: the <strong>capability analysis</strong>
(STC’s delegate-independence proof driving
+automatic packing under <code>@CompileStatic</code>, no annotation needed) and
<strong>typed static dispatch</strong>
+(statically-compiled hoisted bodies with typed captures/params/return — zero
<code>invokedynamic</code>), with
+compile-time packing exercised across the core module and several others. The
remaining Groovy 7
+work is S3 object elision, unifying the closure and lambda writers,
owner-correct retargeting so
+nested closures can hoist, and hardening the automatic path from experimental
(opt-in flag) to
+default-on.</p>
</div>
<div class="sect2">
<h3 id="_measured_impact">Measured impact</h3>
diff --git a/wiki/geps.html b/wiki/geps.html
index af04a5ca..2f16a37d 100644
--- a/wiki/geps.html
+++ b/wiki/geps.html
@@ -63,7 +63,7 @@
</ul>
</div>
</div>
- </div><div id='content' class='page-1'><div
class='row'><div class='row-fluid'><div class='col-lg-3'><ul
class='nav-sidebar'><li class='active'><a href='#gep'>GEPs</a></li><li><a
href='#GEP-1' class='anchor-link'>GEP-1</a></li><li><a href='#GEP-2'
class='anchor-link'>GEP-2</a></li><li><a href='#GEP-3'
class='anchor-link'>GEP-3</a></li><li><a href='#GEP-4'
class='anchor-link'>GEP-4</a></li><li><a href='#GEP-5'
class='anchor-link'>GEP-5</a></li><li><a href='#GEP-6' [...]
+ </div><div id='content' class='page-1'><div
class='row'><div class='row-fluid'><div class='col-lg-3'><ul
class='nav-sidebar'><li class='active'><a href='#gep'>GEPs</a></li><li><a
href='#GEP-1' class='anchor-link'>GEP-1</a></li><li><a href='#GEP-2'
class='anchor-link'>GEP-2</a></li><li><a href='#GEP-3'
class='anchor-link'>GEP-3</a></li><li><a href='#GEP-4'
class='anchor-link'>GEP-4</a></li><li><a href='#GEP-5'
class='anchor-link'>GEP-5</a></li><li><a href='#GEP-6' [...]
<div class='row'>
<div class='colset-3-footer'>
<div class='col-1'>
