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No expectedType when triggering completion on MessageSend in JavaContentAssistInvocationContext? [message #824039]

Mon, 19 March 2012 07:10

Marcel Bruch

Messages: 289
Registered: July 2009

Senior Member

Hi,

when triggering content assist on an argument of a MessageSend node as in

Composite c = new Composite(|<^Space>null, 0);

JavaContentAssistInvocationContext.getExpectedType() returns null. I'd expected/would like to see that it returns the name of the only parameter type that is possible in this context, Composite.

Also, InternalCompletionContext.getExpectedTypesSignatures() returns null. Is there any obvious reason why this is not supported - or does it make sense to discuss this in more length in bugzilla?

Thanks,
Marcel

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Re: No expectedType when triggering completion on MessageSend in JavaContentAssistInvocationContext? [message #824189 is a reply to message #824039]

Mon, 19 March 2012 11:12

Deepak Azad

Messages: 543
Registered: July 2009

Senior Member

On 3/19/2012 12:40 PM, Marcel Bruch wrote:
> Hi,
>
> when triggering content assist on an argument of a MessageSend node as in
> Composite c = new Composite(|<^Space>null, 0);
> JavaContentAssistInvocationContext.getExpectedType() returns null. I'd
> expected/would like to see that it returns the name of the only
> parameter type that is possible in this context, Composite.
>
> Also, InternalCompletionContext.getExpectedTypesSignatures() returns
> null. Is there any obvious reason why this is not supported - or does it
> make sense to discuss this in more length in bugzilla?

Looks fishy to me. Please open a bug. (In general, I think you should
err on the side of opening a bug. It is OK if once in a while a bug is a
false alarm.)

-
org.eclipse.jdt.internal.codeassist.CompletionEngine.computeExpectedTypes(ASTNode,
ASTNode, Scope) is never called
- As a result
org.eclipse.jdt.internal.codeassist.InternalCompletionContext.setExpectedTypesSignatures(char[][])
is also never called.

--
Deepak Azad
http://wiki.eclipse.org/JDT/FAQ

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