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package org.graalvm.compiler.truffle.nodes.asserts;
import static org.graalvm.compiler.nodeinfo.InputType.State;
import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.graph.IterableNodeType;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.graph.VerificationError;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.ControlSinkNode;
import org.graalvm.compiler.nodes.FrameState;
import org.graalvm.compiler.nodes.StateSplit;
import org.graalvm.compiler.nodes.StructuredGraph;
import org.graalvm.compiler.nodes.util.GraphUtil;
@NodeInfo(cycles = CYCLES_0, size = SIZE_0)
public final class NeverPartOfCompilationNode extends ControlSinkNode implements StateSplit, IterableNodeType {
public static final NodeClass<NeverPartOfCompilationNode> TYPE = NodeClass.create(NeverPartOfCompilationNode.class);
protected final String message;
@OptionalInput(State) protected FrameState stateAfter;
public NeverPartOfCompilationNode(String message) {
super(TYPE, StampFactory.forVoid());
this.message = message;
}
public String getMessage() {
return message;
}
@Override
public FrameState stateAfter() {
return stateAfter;
}
@Override
public void setStateAfter(FrameState x) {
assert x == null || x.isAlive() : "frame state must be in a graph";
updateUsages(stateAfter, x);
stateAfter = x;
}
@Override
public boolean hasSideEffect() {
return true;
}
public static void verifyNotFoundIn(final StructuredGraph graph) {
for (NeverPartOfCompilationNode neverPartOfCompilationNode : graph.getNodes(NeverPartOfCompilationNode.TYPE)) {
Throwable exception = new VerificationError(neverPartOfCompilationNode.getMessage());
throw GraphUtil.approxSourceException(neverPartOfCompilationNode, exception);
}
}
}