Examples with ASTIterator org.eclipse.n4js.flowgraphs.ASTIterator used on opensource projects

Example 1 with ASTIterator

use of org.eclipse.n4js.flowgraphs.ASTIterator in project n4js by eclipse.

the class FlowgraphsXpectMethod method astOrder.

/**
 * This xpect method can evaluate the direct predecessors of a code element. The predecessors can be limited when
 * specifying the edge type.
 * <p>
 * <b>Attention:</b> The type parameter <i>does not</i> work on self loops!
 */
@ParameterParser(syntax = "('of' arg2=OFFSET)?")
@Xpect
public void astOrder(@N4JSCommaSeparatedValuesExpectation IN4JSCommaSeparatedValuesExpectation expectation, IEObjectCoveringRegion offset) {
    EObject context = offset.getEObject();
    Iterator<ControlFlowElement> astIter = new ASTIterator(context);
    int idx = 0;
    List<String> astElements = new LinkedList<>();
    while (astIter.hasNext()) {
        ControlFlowElement cfe = astIter.next();
        String elem = idx + ": " + FGUtils.getSourceText(cfe);
        astElements.add(elem);
        idx++;
    }
    expectation.assertEquals(astElements);
}