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Date: Tue, 15 Jun 2010 04:27:23 -0400 (EDT)
From: "Valery Silaev (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Subject: [jira] Updated: (SANDBOX-323) Support for ASM 3.2 / 3.3 and in/out
 continuations parameters
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     [ https://issues.apache.org/jira/browse/SANDBOX-323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Valery Silaev updated SANDBOX-323:
----------------------------------

    Description: 
1. Currently JavaFlow can't be used with new ASM builds due to incompatible changes introduced in ASM 3.2, the patch provided adds support for ASM 3.2 / 3.3, so JavaFlow may be used with any ASM 3.x version 

2. There is no API to return result from suspended continuation, ad-hoc custom logic with ThreadLocal variables is necessary for this. The patch contains necessary API improvements.

// In continuation
final Object varReceivedByContinuation = Continuation.suspend(varPassedByContinuation);

// In calling client
final Continuation cc = Continuation.startWith(code);
System.out.println(cc.value()); // value() is yielded by continuation

In certain sense this works as "yield" operator found in other programming languages, and has even richer semantics.

3. Miscellaneous: continuation-specific Iterable/Iterator are provided with patch as well to simplify iteration over multiple values yielded by continuation code; they are named CoRoutine / CoIterator in code.

  was:
1. Currently JavaFlow can be used with new ASM builds due to incompatible changes introduced in ASM 3.2, the patch provided adds support for ASM 3.2 / 3.3, so JavaFlow may be used with any ASM 3.x version 

2. There is no API to return result from suspended continuation, ad-hoc custom logic with ThreadLocal variables is necessary for this. The patch contains API changes to allow this.

// In continuation
final Object varReceivedByContinuation = Continuation.suspend(varPassedByContinuation);

// In calling client
final Continuation cc = Continuation.startWith(code);
System.out.println(cc.value()); // value() is yielded by continuation

In certain sense this works as "yield" operator found in other programming languages, and has even richer semantics.

3. Miscellaneous: continuation-specific Iterable/Iterator are provided with patch as well to simplify iteration over multiple values yielded by continuation code; they are named CoRoutine / CoIterator in code.


> Support for ASM 3.2 / 3.3 and in/out continuations parameters
> -------------------------------------------------------------
>
>                 Key: SANDBOX-323
>                 URL: https://issues.apache.org/jira/browse/SANDBOX-323
>             Project: Commons Sandbox
>          Issue Type: Improvement
>          Components: Javaflow
>    Affects Versions: Nightly Builds
>         Environment: SUN JDK 1.6
>            Reporter: Valery Silaev
>             Fix For: Nightly Builds
>
>         Attachments: javaflow_modified.zip
>
>
> 1. Currently JavaFlow can't be used with new ASM builds due to incompatible changes introduced in ASM 3.2, the patch provided adds support for ASM 3.2 / 3.3, so JavaFlow may be used with any ASM 3.x version 
> 2. There is no API to return result from suspended continuation, ad-hoc custom logic with ThreadLocal variables is necessary for this. The patch contains necessary API improvements.
> // In continuation
> final Object varReceivedByContinuation = Continuation.suspend(varPassedByContinuation);
> // In calling client
> final Continuation cc = Continuation.startWith(code);
> System.out.println(cc.value()); // value() is yielded by continuation
> In certain sense this works as "yield" operator found in other programming languages, and has even richer semantics.
> 3. Miscellaneous: continuation-specific Iterable/Iterator are provided with patch as well to simplify iteration over multiple values yielded by continuation code; they are named CoRoutine / CoIterator in code.

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