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Why does printing parent node of a node returns parent + child nodes? [message #803363]

Tue, 21 February 2012 03:43

Eclipse User

Given a start position, I can find a node by passing it to org.eclipse.jdt.core.dom.NodeFinder class.

NodeFinder node = new NodeFinder(root, m.getSourceStart(), m.getSourceEnd() - m.getSourceStart() + 1);
ASTNode n = node.getCoveredNode();
Let assume that this node has a parent and get the node's parent n.getParent(); does anyone know why it prints out the parent node and the node?

For instance we know the starting point of foo() in bar.foo() so if I do System.Out.Println(n.getParent().toString()); it prints bar.foo(). Shouldn't it print only bar?

Thanks in advance for your insight.

Re: Why does printing parent node of a node returns parent + child nodes? [message #803606 is a reply to message #803363]

Tue, 21 February 2012 10:04

Eclipse User

On 2/21/2012 2:13 PM, Fabrice Marcelin wrote:
> For instance we know the starting point of foo() in bar.foo() so if I do
> System.Out.Println(n.getParent().toString()); it prints bar.foo().
> Shouldn't it print only bar?

If you use the AST view plugin
(http://www.eclipse.org/jdt/ui/astview/index.php), you will realize that
the parent here is the MethodInvocation node or bar.foo().

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

Re: Why does printing parent node of a node returns parent + child nodes? [message #803689 is a reply to message #803606]

Tue, 21 February 2012 12:08

Eclipse User

This is a very informative tool. Thanks. So quick question, how could i get only the parent's name in that case?

Re: Why does printing parent node of a node returns parent + child nodes? [message #803932 is a reply to message #803689]

Tue, 21 February 2012 20:39

Eclipse User

On 2/21/2012 10:38 PM, Fabrice Marcelin wrote:
> This is a very informative tool. Thanks. So quick question, how could i
> get only the parent's name in that case?

Again, if you use the tool you will realize that what you are looking
for is the Expression property of the parent.

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

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