[jboss-jira] [JBoss JIRA] Closed: (JASSIST-102) Bug report for CtNewMethod.copy

[Shigeru Chiba (JIRA)]

     [ https://jira.jboss.org/jira/browse/JASSIST-102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shigeru Chiba closed JASSIST-102.
---------------------------------



> Bug report for CtNewMethod.copy
> -------------------------------
>
>                 Key: JASSIST-102
>                 URL: https://jira.jboss.org/jira/browse/JASSIST-102
>             Project: Javassist
>          Issue Type: Bug
>    Affects Versions: 3.11.0.GA
>            Reporter: Shigeru Chiba
>            Assignee: Shigeru Chiba
>            Priority: Minor
>             Fix For: 3.12.0.GA
>
>
> ** the following message was directly sent to chiba on December 26, 2009.
> Dear Shigeru,
> when copying a method from class A to class B, the class name of A is
> replaced by B all over the descriptor of the method. This is not
> documented, and is not required in all cases; I understand that the
> opcodes for "this" return B instead of A, and this may justify using a
> different return type (but doesn't justify using different argument
> types). I use this method to build manually my proxies and to
> replicate the original signature, while later replacing the method's
> body.
> I suggest documenting this behaviour, and adding an overload with a
> boolean parameter to request or suppress this renaming.
> Here's the stack trace (built manually) that shows where this happens
> (I first noticed this behaviour experimentally):
> MethodInfo.read(MethodInfo src, String methodname, Map classnames) (line 478)
> MethodInfo(ConstPool cp, String methodname, MethodInfo src,
>            Map classnameMap) (line 104)
> void CtBehaviour.copy(CtBehavior src, boolean isCons, ClassMap map) (line 66)
> CtMethod(CtMethod src, CtClass declaring, ClassMap map) (line 113)
> CtMethod CtNewMethod.copy(CtMethod src, CtClass declaring,
>                                ClassMap map) (line 159)
> Kind regards
> -- 
> Paolo Giarrusso

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