/**
* Given a DOM-fragment, a corresponding Operation-object is built. This method recursively calls
* other buildFromDOM () - methods to validate the structure of the DOM-fragment.
*
* @throws FilterConstructionException if the structure of the DOM-fragment is invalid
*/
public static Operation buildFromDOM(Element element) throws FilterConstructionException {
// check if root element's name is a known operator
String name = element.getLocalName();
int operatorId = OperationDefines.getIdByName(name);
switch (operatorId) {
case OperationDefines.PROPERTYISEQUALTO:
case OperationDefines.PROPERTYISLESSTHAN:
case OperationDefines.PROPERTYISGREATERTHAN:
case OperationDefines.PROPERTYISLESSTHANOREQUALTO:
case OperationDefines.PROPERTYISGREATERTHANOREQUALTO:
{
break;
}
default:
{
throw new FilterConstructionException("'" + name + "' is not a PropertyIsOperator!");
}
}
ElementList children = XMLTools.getChildElements(element);
if (children.getLength() != 2)
throw new FilterConstructionException("'" + name + "' requires exactly 2 elements!");
Expression expr1 = Expression_Impl.buildFromDOM(children.item(0));
Expression expr2 = Expression_Impl.buildFromDOM(children.item(1));
return new PropertyIsCOMPOperation(operatorId, expr1, expr2);
}
/**
* Get all element children of an element with a given namespace.
*
* @param element Element whose children we want to search for elements
* @param namespaceURI Namespace of the children
* @return List of elements
*/
public static NodeList getChildElements(Element element, String namespaceURI) {
NodeList childs = element.getChildNodes();
ElementList list = new ElementList();
for (int i = 0; i < childs.getLength(); i++) {
Node node = childs.item(i);
if (Node.ELEMENT_NODE == node.getNodeType() && namespaceURI.equals(node.getNamespaceURI())) {
list.add(node);
}
}
return list;
}
void onIsolatePaused(
@NotNull final IsolateRef isolateRef,
@Nullable final ElementList<Breakpoint> vmBreakpoints,
@Nullable final InstanceRef exception,
@Nullable final Frame vmTopFrame,
boolean atAsyncSuspension) {
if (vmTopFrame == null) {
myDebugProcess.getSession().positionReached(new XSuspendContext() {});
return;
}
final DartVmServiceSuspendContext suspendContext =
new DartVmServiceSuspendContext(
myDebugProcess, isolateRef, vmTopFrame, exception, atAsyncSuspension);
final XStackFrame xTopFrame = suspendContext.getActiveExecutionStack().getTopFrame();
final XSourcePosition sourcePosition = xTopFrame == null ? null : xTopFrame.getSourcePosition();
if (vmBreakpoints == null || vmBreakpoints.isEmpty()) {
final StepOption latestStep = myDebugProcess.getVmServiceWrapper().getLatestStep();
if (latestStep == StepOption.Over
&& equalSourcePositions(myLatestSourcePosition, sourcePosition)) {
// continue stepping to change current line
myDebugProcess.getVmServiceWrapper().resumeIsolate(isolateRef.getId(), latestStep);
} else {
myLatestSourcePosition = sourcePosition;
myDebugProcess.getSession().positionReached(suspendContext);
}
} else {
if (vmBreakpoints.size() > 1) {
// Shouldn't happen. IDE doesn't allow to set 2 breakpoints on one line.
LOG.error(vmBreakpoints.size() + " breakpoints hit in one shot.");
}
// Remove any temporary (run to cursor) breakpoints.
myBreakpointHandler.removeTemporaryBreakpoints(isolateRef.getId());
final XLineBreakpoint<XBreakpointProperties> xBreakpoint =
myBreakpointHandler.getXBreakpoint(vmBreakpoints.get(0));
if (xBreakpoint == null) {
// breakpoint could be set in the Observatory
myLatestSourcePosition = sourcePosition;
myDebugProcess.getSession().positionReached(suspendContext);
return;
}
if ("false"
.equals(
evaluateExpression(
isolateRef.getId(), vmTopFrame, xBreakpoint.getConditionExpression()))) {
myDebugProcess.getVmServiceWrapper().resumeIsolate(isolateRef.getId(), null);
return;
}
myLatestSourcePosition = sourcePosition;
final String logExpression =
evaluateExpression(isolateRef.getId(), vmTopFrame, xBreakpoint.getLogExpressionObject());
final boolean suspend =
myDebugProcess.getSession().breakpointReached(xBreakpoint, logExpression, suspendContext);
if (!suspend) {
myDebugProcess.getVmServiceWrapper().resumeIsolate(isolateRef.getId(), null);
}
}
}
