Example usage for org.eclipse.jdt.internal.core BinaryType getChildren

Introduction

In this page you can find the example usage for org.eclipse.jdt.internal.core BinaryType getChildren.

Prototype

@Override
    public IJavaElement[] getChildren() throws JavaModelException 

Source Link

Usage

From source file:org.codehaus.jdt.groovy.integration.internal.GroovyLanguageSupport.java

License:Open Source License

/**
 * Go through the bunary children and remove all children that do not have a real source location
 *///from w ww  . ja va2s  .c  o  m
public void filterNonSourceMembers(BinaryType binaryType) {
    try {
        IJavaElement[] childrenArr = binaryType.getChildren();
        List<IJavaElement> children = new ArrayList<IJavaElement>(Arrays.asList(childrenArr));
        List<JavaElement> removedChildren = new LinkedList<JavaElement>();
        for (Iterator<IJavaElement> childIter = children.iterator(); childIter.hasNext();) {
            IJavaElement child = childIter.next();
            if (child instanceof BinaryMember) {
                BinaryMember binaryChild = (BinaryMember) child;
                ISourceRange range = binaryChild.getSourceRange();
                if (range == null || range.getOffset() == -1) {
                    removedChildren.add(binaryChild);
                    childIter.remove();
                }
            }
        }
        JavaElement[] newChildrenArr = children.toArray(new JavaElement[children.size()]);

        // now comes the icky part.

        // we need to set the children of the ClassFileInfo to the new children
        // but this class is package protected, so can't access it directly.
        Object /* ClassFileInfo */ classFileInfo = ((ClassFile) binaryType.getParent()).getElementInfo();
        ReflectionUtils.setPrivateField(classFileInfo.getClass(), "binaryChildren", classFileInfo,
                newChildrenArr);

        // also need to remove these children from the JavaModelManager
        JavaModelManager manager = JavaModelManager.getJavaModelManager();
        for (JavaElement removedChild : removedChildren) {
            if (removedChild instanceof BinaryType) {
                manager.removeInfoAndChildren((JavaElement) removedChild.getParent());
            } else {
                manager.removeInfoAndChildren(removedChild);
            }
        }

    } catch (JavaModelException e) {
        e.printStackTrace();
    }
}

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