Examples with ExpressionStatement org.eclipse.n4js.n4JS.ExpressionStatement used on opensource projects

Example 6 with ExpressionStatement

use of org.eclipse.n4js.n4JS.ExpressionStatement in project n4js by eclipse.

the class DeadCodeAnalyser method getReachableContainer.

/**
 * Finds the nearest reachable {@link Block} of the given {@link ControlFlowElement}
 */
private EObject getReachableContainer(Set<ControlFlowElement> unreachableElems, ControlFlowElement unreachableElem, Set<ControlFlowElement> moreUnreachableElems) {
    EObject elemContainer = unreachableElem.eContainer();
    if (elemContainer instanceof ExpressionStatement) {
        moreUnreachableElems.add((ExpressionStatement) elemContainer);
    }
    EObject block = EcoreUtil2.getContainerOfType(unreachableElem, Block.class);
    if (block == null) {
        block = EcoreUtil2.getContainerOfType(unreachableElem, Script.class);
    }
    EObject blockContainer = block.eContainer();
    boolean isDeadContainer = blockContainer instanceof ControlFlowElement;
    isDeadContainer &= isDeadContainer && FGUtils.isControlStatement((ControlFlowElement) blockContainer);
    isDeadContainer &= isDeadContainer && isDeadCode((ControlFlowElement) blockContainer);
    if (isDeadContainer) {
        ControlFlowElement cfe = (ControlFlowElement) blockContainer;
        moreUnreachableElems.add(cfe);
        return getReachableContainer(unreachableElems, cfe, moreUnreachableElems);
    }
    return block;
}