[forge-issues] [JBoss JIRA] (ROASTER-26) Can't add comment in the method body

[Jeremie Bresson (JIRA)]

    [ https://issues.jboss.org/browse/ROASTER-26?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13109718#comment-13109718 ] 

Jeremie Bresson commented on ROASTER-26:
----------------------------------------

If you do:
{code:java}
String stub = "public class Stub {\n //a comment\n public String method() {\n //a comment \n return \"Hello World!\"; \n } }";
JavaClassSource javaClassSource = Roaster.parse(JavaClassSource.class, stub);
System.out.println(javaClassSource.toString());
{code}
The comments are present...

My investigations show that the comment are not directly part of the AST. You can get them in the CompilationUnit:
{code:java}
unit.getCommentList();
{code}

And for each node:
{code:java}
unit.firstLeadingCommentIndex(ASTNode);
unit.lastTrailingCommentIndex(ASTNode);
{code}

In the setBody() use-case (code snippet in the issue), the comment are lost when the AST is copied (in org.jboss.forge.roaster.model.impl.MethodImpl.setBody(String)):

{code:java}
block = (Block) ASTNode.copySubtree(method.getAST(), block);
method.setBody(block);
{code}

I am not sure how this should be handled.

> Can't add comment in the method body
> ------------------------------------
>
>                 Key: ROASTER-26
>                 URL: https://issues.jboss.org/browse/ROASTER-26
>             Project: Roaster
>          Issue Type: Bug
>          Components: JDT
>    Affects Versions: 2.7.0.Final
>            Reporter: Nicolas Challut
>             Fix For: 2.x Future
>
>
> If you try to add a comment in a method body, the comment won't be print. Comment are detected like a miswritten code



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