Children of org.eclipse.jdt.core.dom.ASTNode

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北荒
北荒 2021-01-03 02:43

Using Eclise JDT, I need to retrieve the children of any ASTNode. Is there a utility method somewhere that I could use ?

The only way I can think of right now is to

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  •  独厮守ぢ
    2021-01-03 03:07

    I would start by looking at source of ASTView Plugin, since that also does the same thing.

    Based on the code in

    • org.eclipse.jdt.astview.views.ASTViewContentProvider.getNodeChildren(ASTNode)
    • org.eclipse.jdt.astview.views.NodeProperty.getChildren()

    the required code should look something like this

    public Object[] getChildren(ASTNode node) {
        List list= node.structuralPropertiesForType();
        for (int i= 0; i < list.size(); i++) {
            StructuralPropertyDescriptor curr= (StructuralPropertyDescriptor) list.get(i);
                Object child= node.getStructuralProperty(curr);
            if (child instanceof List) {
                    return ((List) child).toArray();
            } else if (child instanceof ASTNode) {
                return new Object[] { child };
                }
            return new Object[0];
        }
    }
    

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