On Jan 11, 2011, at 7:07 PM, Stephen Bannasch wrote:
That fixed the problem for all the failing tests in jdk/test/java/dyn.
Good. So there's a bug in those pending patches. Sorry for the extra work!
-- John
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On Jan 7, 2011, at 1:30 AM, Christian Thalinger wrote:
Can you look at the false negative? I will fix the checking logic.
Sure. Please throw me a recipe (concise if possible) for reproducing the
error. -- John
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The home package for JSR 292 is likely to change soon from java.dyn to
java.lang.mh (or a similar name).
The name java.dyn was chosen several years ago, long before method handles or
Project Lambda. Our JDK7 architecture and future plans have changed enough to
warrant moving the content of
On Jan 7, 2011, at 2:48 AM, Christian Thalinger wrote:
Wait a second... I doubt this is a false negative in VerifyMethodHandles.
The MethodHandleWalker can't find a raw retype conversion function and that's
why it crashes. Maybe it is a false negative but then we are missing some
On Jan 6, 2011, at 1:12 AM, Helmut Eller wrote:
* John Rose [2011-01-06 02:37] writes:
Live constants are definitely one of the use cases that
invokedynamic is designed for.
Are/will there be any means to link invokedynamic call sites eagerly
instead of the lazy linking scheme?
E.g
On Jan 6, 2011, at 10:59 AM, Mark Roos wrote:
My goal was to do the port at the byte code level so that there would be a
high degree of confidence
that the 500K of existing code will work as it does today. It is a stack
based VM so changing the arg
order could add some pain for me
On Jan 3, 2011, at 9:03 AM, Rémi Forax wrote:
Hi Christian,
On 01/03/2011 05:41 PM, Christian Thalinger wrote:
On Dec 27, 2010, at 12:30 PM, Rémi Forax wrote:
Hi guys,
this code crash with jdk7b123 on x64,
and on x32 it raises a CCE but it should raise a WrongMethodTypeException.
The
On Jan 2, 2011, at 6:42 AM, Rémi Forax wrote:
This means there is a bug in my code but also
that there is a bug in the VM which should reject the bad class file
instead of crashing.
Try java -Xverify:all. If the class file fails verification *but* the
verifier is not used, the JVM is
Nice. Thanks! -- John
On Jan 4, 2011, at 5:30 PM, Rémi Forax wrote:
On 01/05/2011 01:31 AM, John Rose wrote:
On Jan 2, 2011, at 6:42 AM, Rémi Forax wrote:
This means there is a bug in my code but also
that there is a bug in the VM which should reject the bad class file
instead
Here is the current version of the document:
http://cr.openjdk.java.net/~jrose/pres/indy-javadoc-mlvm-0104/
The changes since b123 (which are few) are described here:
http://cr.openjdk.java.net/~jrose/pres/indy-javadoc-mlvm-0104-after-1216/
As you can see from the spec, we are down to a very
Fixed. -- John
On Dec 23, 2010, at 3:36 AM, Christian Thalinger wrote:
That seems to be a problem in meth-conv-6939861. MethodHandles::verify_klass
should use jcc instead of jccb. John, will you fix it or should I take care
of it?
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Can you get a backtrace? The question is who is torturing the poor assembler.
-- John
On Dec 22, 2010, at 10:09 PM, Howard Lovatt wrote:
Hi,
When I use this version on my lambda test code I get the following error:
VM option '+UnlockExperimentalVMOptions'
VM option
:04 PM, John Rose wrote:
This is a JDK-only change request, in response to the last several weeks of
JSR 292 EG work.
http://cr.openjdk.java.net/~jrose/7001424/webrev.00/
May I have an eyeball or two, please?
Thanks,
src/share/classes/java/dyn/ClassValue.java:
93 * If no value
On Dec 15, 2010, at 2:27 PM, Rémi Forax wrote:
Why can't T3 happen between the synchronized block and the setUpdate call,
and get overwritten with a T1-based decision?
Rich
It can. I was wrong.
setTarget() has to be in the synchronized block.
Foo; I agree. The T1 update can float
forwarded message:
From: John Rose john.r.r...@oracle.com
Date: December 9, 2010 4:01:21 PM PST
To: jvm-langua...@googlegroups.com
Subject: [jvm-l] request for advice: safepoints in the JSR 292 spec
Reply-To: jvm-langua...@googlegroups.com
Hi everyone. On behalf of the JSR 292 EG, I'd like to ask
On Nov 25, 2010, at 2:27 AM, Christian Thalinger wrote:
On Nov 25, 2010, at 8:42 AM, John Rose wrote:
On Nov 22, 2010, at 6:57 PM, John Rose wrote:
Because of a strong and reasonable request from the IBM JVM team, the JSR
292 class file format for CONSTANT_InvokeDynamic is changing one
On Nov 22, 2010, at 6:57 PM, John Rose wrote:
Because of a strong and reasonable request from the IBM JVM team, the JSR 292
class file format for CONSTANT_InvokeDynamic is changing one more time.
...
I will be putting out a review request soon for this.
Here is a JVM change which moves
will be a new attribute named BootstrapMethods.
This format change will make the class file format a easier to parse by some
JVMs (such as J9).
I will be putting out a review request soon for this.
-- John
On Nov 2, 2010, at 2:38 AM, Christian Thalinger wrote:
On Oct 30, 2010, at 9:08 PM, John Rose
P.S. The updated spec is here, as always:
http://cr.openjdk.java.net/~jrose/pres/indy-javadoc-mlvm/java/dyn/package-summary.html
http://cr.openjdk.java.net/~jrose/pres/indy-javadoc-mlvm/
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It's re-published. -- John
On Nov 19, 2010, at 1:47 AM, Christian Thalinger wrote:
There's something wrong with the webrev. I get 404s for all files except the
first.
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Javac changes have now propagated for changing this method handle syntax:
mh.TinvokeExact()
to be replaced by this:
(T) mh.invokeExact()
The present reviewe is the other shoe dropping for these javac changes, to
make the corresponding changes in the JDK code. All the places which used the
On Nov 17, 2010, at 9:27 PM, Stephen Bannasch wrote:
At 1:29 PM -0800 11/16/10, John Rose wrote:
Stephen, that's my bug. Will fix ASAP. -- John
Just tried again with these guards:
export davinci=$(pwd) guards=buildable testable /coro /continuation
and am now getting this error
Folks, here's a small tool for JSR 292 that may have its uses:
http://blogs.sun.com/jrose/entry/a_modest_tool_for_writing
Enjoy,
-- John
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:11 AM, BGB wrote:
On 11/16/2010 4:53 AM, John Rose wrote:
Folks, here's a small tool for JSR 292 that may have its uses:
http://blogs.sun.com/jrose/entry/a_modest_tool_for_writing
yep, interesting.
sorry, this is unrelated, but in my own (hobby/experimental) VM effort (here
using
Stephen, that's my bug. Will fix ASAP. -- John
On Nov 8, 2010, at 6:21 PM, Stephen Bannasch wrote:
If I exclude the coro patch:
export davinci=$(pwd) guards=buildable testable /coro
Then I get this error:
# Running javac:
/usr/local/soylatte16-i386-1.0.3/bin/java
On Nov 16, 2010, at 1:59 PM, assembling signals wrote:
1) Which JSR-292 features will people be able to use with standard
(non-customized) JDK7 builds in the future?
All those documented in
http://cr.openjdk.java.net/~jrose/pres/indy-javadoc-mlvm/ . That is the
leading edge of the JSR 292
On Nov 7, 2010, at 3:15 PM, Rémi Forax wrote:
John, I wonder if invokeVarargs() with 0 argument should
use invokeGeneric instead of the genericInvoker.
Also it seems that there is no check in the VM that the default target
of a switch can be not taken.
Probably. invokeWithArguments (which
On Nov 7, 2010, at 1:17 AM, assembling signals wrote:
For the use case calling a method whose signature is unknown prior to
runtime
(such as some lib, loaded externally) :
That's what MethodHandles.genericInvoker is for.
You can also do this yourself by calling Lookup.findVirtual on
On Nov 6, 2010, at 11:38 AM, Rémi Forax wrote:
I've wanted to write that several times, so before doing something else,
I want to try to convince all VM hackers that they should stop doing
what they currently do and starts to implement a way to export
values from the VM stack into a Java
On Oct 29, 2010, at 4:09 AM, Christian Thalinger wrote:
On Oct 28, 2010, at 8:40 PM, John Rose wrote:
6984311: JSR 292 needs optional bootstrap method parameters
http://cr.openjdk.java.net/~jrose/6984311/webrev.02/
src/share/vm/oops/constantPoolOop.cpp:
576 // Benign race condition
.
(It's in the *311 webrev because I thought of rolling it into the fixes for
6984311, but then decided to split it.)
-- John
On Oct 28, 2010, at 4:30 AM, Christian Thalinger wrote:
On Oct 26, 2010, at 10:39 AM, John Rose wrote:
This is a large set of miscellaneous API adjustments that takes
On Oct 28, 2010, at 4:30 AM, Christian Thalinger wrote:
On Oct 26, 2010, at 10:39 AM, John Rose wrote:
This is a large set of miscellaneous API adjustments that takes account of
intensive JSR 292 Expert Group work since the JVM Language Summit and
JavaOne.
http://cr.openjdk.java.net
This is a large set of miscellaneous API adjustments that takes account of
intensive JSR 292 Expert Group work since the JVM Language Summit and JavaOne.
http://cr.openjdk.java.net/~jrose/6981777/webrev.01/
An earlier message, sent to the EG and copied to mlvm-dev, details the changes:
I agree. Thanks for the comments. -- John
On Oct 24, 2010, at 3:49 AM, Rémi Forax wrote:
Le 24/10/2010 12:20, john.r.r...@oracle.com a écrit :
Changeset: e3a3904eea5d
Author:jrose
Date: 2010-10-24 03:20 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/e3a3904eea5d
Based partly on our discussions at the Summit about live constants, and also
based on the likely requirements of Project Lambda, the JSR 292 EG is likely to
allow any single invokedynamic instruction to pass one or more extra constant
values into the bootstrap method invocation.
Here is the
On Oct 22, 2010, at 2:19 AM, Rémi Forax wrote:
And also:
CallSite myBSM(MethodHandles.Lookup look, String name, MethodType type);
CallSite myBSM(MethodHandles.Lookup look, String name, MethodType type,
Object arg);
CallSite myBSM(MethodHandles.Lookup look, String name, MethodType
The JSR 292 EG is discussing access rules for method handles.
The draft spec. say that CONSTANT_MethodHandles in the constant pool, and
dynamically looked up method handles, are accessible to related nested classes:
* In general, the conditions under which a method handle may be
*
On Oct 22, 2010, at 4:03 AM, Helmut Eller wrote:
Why is the name a required and not an optional argument?
The name is part of the fixed structure of CONSTANT_InvokeDynamic, which is
modeled on CONSTANT_Methodref, and therefore contains a CONSTANT_NameAndType.
Whether you want the name or
If you are experimenting with the OpenJDK JDK7 bundles, you might have noticed
that this syntax:
mh.intinvokeExact(x)
has changed to this:
(int) mh.invokeExact(x)
Note on void: There is no (void) cast in Java, but to get a void call, use a
method call expression as a statement.
On Oct 5, 2010, at 12:59 PM, Tarek Chammah wrote:
One particular feature I was thinking of under the ++ column is
support for tail call optimization. This particular Da Vinci
sub-project is apparently not fully engineered and spec'ed at the
moment. But I was thinking with the recent
On Oct 10, 2010, at 10:48 AM, Chanwit Kaewkasi wrote:
It has been too late to me to cite it. Sorry about that!
That's OK; the paper just came out.
I made an obscure reference to it in my blog:
http://blogs.sun.com/jrose/entry/an_experiment_with_generic_arithmetic
Here's a file copy:
On Sep 29, 2010, at 5:00 PM, Per Bothner wrote:
Fundamentally, the question is: When the Scheme programmer passes
of function to a higher-level function (like map), what is the type
of the object passed: A MethodHandle? A Procedure? Something else?
There seem to be different kind of
On Sep 24, 2010, at 11:57 AM, Hannes Wallnoefer wrote:
Can I simply use the latest official JDK7 beta build? I'm on x86
Linux. Any help is greatly appreciated!
In general, the JDK7 beta builds are not far behind the mlvm patch set, for JSR
292 work. (By not far I mean a matter of several
I am available for conversation about JVM futures (JSR 292 and MLVM) this
afternoon and tomorrow.
At about 3:30, I will be hanging around the JavaOne tent by the Hilton. RSVP
in case we relocate.
I'm especially eager to hear people's comments on the JSR 292 work. Much of it
is already in
This is the Java code which uses the new hook placed in hotspot under this same
bug.
http://cr.openjdk.java.net/~jrose/6939224/jdk-webrev.00/
-- John
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6981777: implement JSR 292 EG adjustments from summer 2010
Summary: Introduce one more constant pool type, CONSTANT_MethodApply.
This JVM change implements a mechanism which supports computed constants and
parameterized bootstrap methods:
http://cr.openjdk.java.net/~jrose/6981777/webrev.00
FYI: I CC-ed two review requests for the JSR 292 reference implementation to
this list.
-- John
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6939224: MethodHandle.invokeGeneric needs to perform the correct set of
conversions
Until now, the HotSpot JVM has conflated invokeExact with invokeGeneric. These
changes, combined with forthcoming JDK runtime support changes, provide a hook
for the JVM to perform on-the-fly argument
(There are more to come, also. -- John)
Begin forwarded message:
From: John Rose john.r.r...@oracle.com
Date: September 5, 2010 12:04:31 AM PDT
To: hotspot compiler hotspot-compiler-...@openjdk.java.net
Subject: Request for review (S): 6953246: JSR 292 should support SAM conversion
One
I have just pushed code to mlvm/{langtools,jdk} which reflects the following
syntax change for method handle invocation:
T x = mh.TinvokeExact(...);
=
T x = (T) mh.invokeExact(...);
and:
{mh.voidinvokeExact(...);}
=
{mh.invokeExact(...);}
In other words, we are replacing fake type
Thanks, Howard. Will fix in next push.
I changed the example to use the assertEquals function from JUnit:
MethodHandle cat = lookup().findVirtual(String.class,
concat, methodType(String.class, String.class));
assertEquals(xy, (String) cat.invokeExact(x, y));
MethodHandle d0 =
, you relink the affected indy
instructions. This clearly uses a different BSM than any pre-existing BSM used
by the original compiler.
-- John
regards,
Eugene
Rémi Forax wrote:
Le 13/07/2010 04:59, John Rose a écrit :
Folks, the 292 EG has decided to register bootstrap methods
On Aug 6, 2010, at 9:32 PM, Howard Lovatt wrote:
There is a minor bug when you use -Xlint:all, I get:
Compiling 1 source file to
/Users/lov080/Dropbox/Personal/Java/examples/Invoke Dynamic Multiple
Dispatch/build/classes
/Users/lov080/Dropbox/Personal/Java/examples/Invoke Dynamic
That's a good idea. There could be a patch at the base of the mlvm patch queue
that adds something to the version string, so people can quickly check if they
have a prototype binary. -- John
On Jul 31, 2010, at 4:08 PM, Stephen Bannasch wrote:
It would be nice if there was some indication
Eric's test Hello.java works OK, but your test, Rémi, fails (Fib4.java). So it
is a second bug.
Stephen, I left a comment: http://gist.github.com/500808
Gist of the gist is: -XX:+UnlockExperimentalVMOptions -XX:+EnableInvokeDynamic
-- John
On Jul 30, 2010, at 8:30 AM, Rémi Forax wrote:
On Jul 30, 2010, at 8:37 AM, Rémi Forax wrote:
This is a known Not Yet Implemented feature,
And as far as I know there is no workaround :(
BTW, there is another NIY hole, you can't have more than 10 parameters.
I am working on removing these limitations. The present code for FilterGeneric
On Jul 27, 2010, at 10:11 AM, Rémi Forax wrote:
Le 16/07/2010 00:48, John Rose a écrit :
It was some sort of bitrot.
I pushed a fix for this to mlvm/hotspot.
Thanks for the reports!
-- John
Is it enable by default, it doesn't seem to work ?
The fix is titled this way:
6969574
It was some sort of bitrot.
I pushed a fix for this to mlvm/hotspot.
Thanks for the reports!
-- John
On Jun 5, 2010, at 10:58 AM, Rémi Forax wrote:
Le 05/06/2010 02:01, John Rose a écrit :
Is the call site megamutable? (Is it linked many times instead of once?)
-- John
Yikes. Thanks for the quick report, Stephen. I pushed an updated patch to get
past the immediate bug and am looking more at the problem.
-- John
P.S. Here are some random notes about debugging which might be useful:
The log file hs_err_pid70212.log might have been interesting for me to look
On Jul 13, 2010, at 5:39 AM, Eugene Kuleshov wrote:
what would be the meaning of bootstrap method pointing to a
method handle of get/putField or get/putStatic type?
It's syntactically valid as a classfile, but the instruction will fail to link
with InvokeDynamicBootstrapError, with cause
, the JVM accepts both old and new formats of invokedynamic. But old
format support will go away when 292 is finalized.
Best wishes,
-- John
Begin forwarded message:
From: John Rose john.r.r...@oracle.com
Date: July 12, 2010 4:20:03 PM PDT
To: jsr-292...@jcp.org
Subject: ISSUE: explicit bootstrap
On Jun 22, 2010, at 5:30 AM, Rémi Forax wrote:
Le 22/06/2010 12:48, Howard Lovatt a écrit :
A couple of comments on the current MethodHandle API:
1. Having only one bootstrap method for InvokeDynamic is a bit
limiting, it it possible to have one per use site?
It's an open issue, we're
On Jun 22, 2010, at 2:25 PM, Rémi Forax wrote:
There is another possible design.
Allow users to create fake types like java.dyn.Invokedynamic
and define the annotation on that type.
I'd rather not let the magic signature polymorphism escape beyond the current
set of names (InvokeDynamic and
On Jun 22, 2010, at 4:24 PM, Howard Lovatt wrote:
I don't think there is confusion between a type name and a value,
therefore proposed syntax OK (but maybe not the preferred). If you
want a class you have to append '.class'.
Sorry, that would be a breaking change to the language, not an
Is the call site megamutable? (Is it linked many times instead of once?) --
John
On Jun 4, 2010, at 4:40 AM, Rémi Forax wrote:
It's funny, I've found the same error last night.
Yes, there is a problem,
if you run with -XX:+PrintCompilation, you will see
lot of made not entrant on the
On May 31, 2010, at 4:34 PM, Stephen Bannasch wrote:
At 12:41 PM -0500 5/31/10, Charles Oliver Nutter wrote:
I'll make a shameless request, since you have a build env set up and
I've been too lazy to refresh mine: can you post a fastdebug build
too? I needz me opto assemblyz!
Remind me (or
On May 25, 2010, at 2:12 PM, Charles Oliver Nutter wrote:
On Mon, May 24, 2010 at 8:22 PM, John Rose john.r.r...@oracle.com wrote:
Right. Here are the degrees of freedom I see at this point:
- whether to accept SAM types which are not interfaces (default: yes)
- whether to allow a query API
On May 23, 2010, at 10:21 AM, Fredrik Öhrström wrote:
What are the patches needed to build
with full MethodHandle support.
The wiki page http://wikis.sun.com/display/mlvm/Building
says that the patche guards buildable testable
should be used.
This is clearly not enough. It seems like
On May 18, 2010, at 1:18 PM, Charles Oliver Nutter wrote:
One important question for me is how multi-method interfaces would be
handled. I had originally tried to use Scala's Function interfaces
in Duby to represent closures, but they all have multiple abstract
methods that must be handled
Working on this; the next big chunk removes such limitations. (Ricochet
frames.) -- John
On May 23, 2010, at 3:01 PM, Rémi Forax wrote:
I got a NYI if I try to call a method using invokeVarargs with more than
10 arguments.
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I recently committed to JDK7 a bundle of coordinated changes to the JDK and
JVM. It looks like we failed to promote, in jdk7-b92, the JDK changes that go
with the most recent JVM changes. These JVM changes are in hs19-b01.
The JDK changes will catch up in jdk7-b93.
(Reminder: This mismatch
On May 18, 2010, at 1:00 AM, Tobias Ivarsson wrote:
It does indeed. Am I reading this correctly that we will now(/soon) be able
to create proxies for abstract classes?
Maybe; it's just a draft so far. I expect *not* to use reflect.Proxy; we need
something more opaque and optimizable.
There
On May 18, 2010, at 12:59 AM, Rémi Forax wrote:
It's only useful when bridging JRuby and Java,
It could also be useful for bridging language A to language B.
For example, Clojure has a suite of Function interfaces.
But the key use is as you say, for interoperating with the Java platform APIs.
On May 11, 2010, at 3:27 AM, Rémi Forax wrote:
I am currently not a able to call that method because converting
an int to an object doesn't work.
This feels like version skew. I'm trying to reproduce it locally.
If your code doesn't work then my unit tests shouldn't either; but they do
On May 10, 2010, at 7:17 AM, Jochen Theodorou wrote:
No reaction to this yet. The registration page has a link for the 2010
summit, but it points still to the 2009 version.
The date is real (July 26-28). We pulled the date earlier this year because we
don't want to overlap with JavaOne (in
Yes, meth-conv has the header split like that.
Apologies in advance: I have not built meth-conv on sparc yet.
If you want to move the header file split from meth-conv into an earlier patch,
and have the cycles to do so, feel free.
-- John
On Apr 14, 2010, at 1:40 AM, Christian Thalinger
On Apr 10, 2010, at 3:01 PM, James Thorpe wrote:
If CPS is out - what about passing the loop condition and body into a
function that does the looping for you.
http://blogs.sun.com/jrose/resource/jsr292/LoopHandle.zip -- John
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Changeset: b1506f926f77
Author:jrose
Date: 2010-04-06 00:48 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/b1506f926f77
meth: buglet with protected methods in 6939134
! meth-ing-6939134.patch
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FTR, there's a good smoke test for the method handles part of JSR 292 in the
JDK sources:
davinci/sources/jdk/test/java/dyn/MethodHandlesTest.java
Running the test requires JUnit 4.5.
$JSR292_JAVA_HOME/bin/java -ea -esa
-XX:+{UnlockExperimentalVMOptions,EnableMethodHandles}
The sources are changing rapidly at this point; I'm working on invokeGeneric.
If you send me a JAR which which can run stand-alone, I can use it as a
regression test.
-- John
On Apr 2, 2010, at 2:36 PM, Attila Szegedi wrote:
On 2010.03.25., at 3:17, Charles Oliver Nutter wrote:
For
Changeset: ab871ff01a91
Author:jrose
Date: 2010-03-30 03:36 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/langtools/rev/ab871ff01a91
meth: assign bug numbers for review
+ meth-ing-6939134.patch
- meth-ing.patch
= meth-ldc-6939203.patch meth-ldc.patch
! series
6939196: method handle signatures off the boot class path get linkage errors
http://cr.openjdk.java.net/~jrose/6939196/hs-webrev.00/
http://cr.openjdk.java.net/~jrose/6939196/jdk-webrev.00/
The bugtraq description is copied below.
- Adjust MethodType lookup logic to search off the BCP, but not
6939203: JSR 292 needs method handle constants
Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend
'ldc' bytecode.
http://cr.openjdk.java.net/~jrose/6939203/hs-webrev.00
Please review this small JDK change along with it:
Changeset: e6b2b7033950
Author:jrose
Date: 2010-03-27 02:47 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/hotspot/rev/e6b2b7033950
meth: fix unit tests; improve access checking logic
! cpindex-cleanup.patch
! meth-ing.patch
! meth-ldc.patch
Changeset: ff2d7d3d25de
Author:jrose
Date: 2010-03-27 05:35 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/ff2d7d3d25de
meth-bcp: fix problems with name resolution, so code need not be on the
bootclasspath
+ meth-bcp.patch
! meth-ing.patch
! series
Changeset: 8b0a03b04092
Author:jrose
Date: 2010-03-25 03:24 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/8b0a03b04092
indy: improve javadoc; add temporary backward compatibility logic for CallSite
! meth-ing.patch
___
The JSR 292 EG has been working with me to refine and clarify the spec for
invokedynamic. I have pushed updates to the RI to reflect this ongoing work.
For the record, here is javadoc for the current state of the RI:
http://cr.openjdk.java.net/~jrose/pres/indy-javadoc-mlvm/
The
On Mar 25, 2010, at 8:12 AM, Rémi Forax wrote:
I've also found useful to propagate expected type back to the calling
method.
Example:
if (foo()) { ... }
should be translated to indy foo ()Z instead of ()Object because if ()
wait for a boolean.
Besides booleans, this is probably most
On Mar 25, 2010, at 10:33 AM, Charles Oliver Nutter wrote:
On Thu, Mar 25, 2010 at 3:16 AM, Attila Szegedi szege...@gmail.com wrote:
That's odd. arguments is Object[]; spreadArguments is required to unpack
these arguments and pass them on to the invoked method.
The dynalang-invoke's own
Changeset: 1c7351d7192f
Author:jrose
Date: 2010-03-24 18:57 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/rev/1c7351d7192f
meth, indy: update 292 API; support ldc of MH
! netbeans/indy-demo/build.xml
! netbeans/indy-demo/nbproject/project.properties
!
Changeset: 5353e955d315
Author:jrose
Date: 2010-03-24 18:47 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/hotspot/rev/5353e955d315
meth, indy: update 292 API; support ldc of MH
+ cpindex-cleanup.patch
+ meth-ing.patch
+ meth-ldc.patch
+ meth.fixes.patch
! meth.patch
! series
Changeset: 9e4635f9c734
Author:jrose
Date: 2010-03-24 18:41 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/9e4635f9c734
meth, indy: update 292 API; support ldc of MH
- indy.tests.patch
+ meth-ing.patch
+ meth-ldc.patch
! meth.patch
! meth.test.patch
! series
The JSR 292 EG has decided to simplify some aspects of the API. I have just
pushed updated patches to mlvm which embody these changes.
CallSite is more streamlined. The only field it has is the target method
handle. The caller class, type, and name have gone away.It is simple to
create
Very nice stuff. Congratulations!
On Mar 24, 2010, at 7:17 PM, Charles Oliver Nutter wrote:
BTW, what's the current state of the art for emitting .java with an
invokedynamic in it? Duby also has a .java backend, so I'll need to
add indy support there as well (somehow).
This statement:
For here equal to ??
When on our intranet I use karachi.sfbay.sun.com as a server which is located
in Santa Clara.
-- John
P.S. To make forays off my laptop, I usually have a Gnu emacs X server running
on the target machine, under a Gnu 'screen' instance.
On Mar 17, 2010, at 10:49 AM,
On Mar 6, 2010, at 5:21 PM, Larry Chester wrote:
Then to invoke on an Object x:
lookup.get(x.getClass()).invokeGeneric(x);
This is quite slow though (although I believe the bottleneck is in the
invokeGeneric call).
I can certainly believe that: invokeGeneric is not fully implemented
On Feb 28, 2010, at 3:48 PM, Larry Chester wrote:
So I've been playing around with invokedynamic (with build 84),
however I've stumbled on something I find quite strange!
Consider two objects a and b that both reference a String. a is
declared as a String but b is only an Object. When I
Thanks, Lukas and Thomas. -- John
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On Jan 31, 2010, at 11:19 PM, Charles Oliver Nutter wrote:
The other use case, which I did not attempt, was in regenerating call
sites a la the DLR's DynamicSite logic (which repeatedly regenerates a
call site with a series of instanceof checks, to specialize the call
paths iteratively).
If you missed yesterday's big Oracle webcast and what to see how the JVM was
mentioned, here are the proceedings:
http://www.oracle.com/us/sun/044498.html
For our purposes, Thomas Kurian's talk is most relevant. But the whole thing
is pretty interesting. (At least, it was to me, for obvious
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