本文整理了Java中com.oracle.truffle.api.nodes.Node类的一些代码示例，展示了Node类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Node类的具体详情如下：
包路径：com.oracle.truffle.api.nodes.Node
类名称：Node

Node介绍

[英]Abstract base class for all Truffle nodes.
[中]所有块菌节点的抽象基类。

代码示例

代码示例来源：origin: com.oracle/truffle

final void replaceHelper(Node newNode, CharSequence reason) {
  CompilerAsserts.neverPartOfCompilation();
  assert inAtomicBlock();
  if (this.getParent() == null) {
    throw new IllegalStateException("This node cannot be replaced, because it does not yet have a parent.");
  }
  if (sourceSection != null && newNode.getSourceSection() == null) {
    // Pass on the source section to the new node.
    newNode.assignSourceSection(sourceSection);
  }
  // (aw) need to set parent *before* replace, so that (unsynchronized) getRootNode()
  // will always find the root node
  newNode.parent = this.parent;
  if (NodeUtil.replaceChild(this.parent, this, newNode)) {
    this.parent.adoptHelper(newNode);
  } else {
    this.parent.adoptUnadoptedHelper(newNode);
  }
  reportReplace(this, newNode, reason);
  onReplace(newNode, reason);
}

代码示例来源：origin: com.oracle/truffle

public final void atomic(Runnable closure) {
  RootNode rootNode = getRootNode();
  synchronized (rootNode != null ? rootNode : GIL) {
    assert enterAtomic();
    try {
      closure.run();
    } finally {
      assert exitAtomic();
    }
  }
}

代码示例来源：origin: com.oracle.truffle/truffle-api

@Override
public SourceSection getInstrumentedSourceSection() {
  if (node == null) {
    return null;
  } else {
    return node.getEncapsulatingSourceSection();
  }
}

代码示例来源：origin: com.oracle/truffle

private static void updateSourceSection(Node oldNode, Node newNode) {
  if (newNode.getSourceSection() == null) {
    newNode.assignSourceSection(oldNode.getSourceSection());
  }
}

代码示例来源：origin: com.oracle/truffle

private void adoptUnadoptedHelper() {
  Iterable<Node> children = this.getChildren();
  for (Node child : children) {
    if (child != null && child.getParent() == null) {
      this.adoptUnadoptedHelper(child);
    }
  }
}

代码示例来源：origin: com.oracle/truffle

private void adoptHelper() {
  Iterable<Node> children = this.getChildren();
  for (Node child : children) {
    if (child != null && child.getParent() != this) {
      this.adoptHelper(child);
    }
  }
}

代码示例来源：origin: com.oracle.truffle/truffle-api

final void replaceHelper(Node newNode, CharSequence reason) {
  CompilerAsserts.neverPartOfCompilation("do not call Node.replaceHelper from compiled code");
  assert inAtomicBlock();
  if (this.getParent() == null) {
    throw new IllegalStateException("This node cannot be replaced, because it does not yet have a parent.");
  }
  // (aw) need to set parent *before* replace, so that (unsynchronized) getRootNode()
  // will always find the root node
  newNode.parent = this.parent;
  if (!NodeUtil.replaceChild(this.parent, this, newNode, true)) {
    this.parent.adoptUnadoptedHelper(newNode);
  }
  reportReplace(this, newNode, reason);
  onReplace(newNode, reason);
}

代码示例来源：origin: org.graalvm.compiler/compiler

@Override
public void nodeProperties(PolymorphicSpecializeGraph graph, PolymorphicSpecializeGraph.DumpNode node, Map<String, ? super Object> properties) {
  properties.put("label", node.node.toString());
  properties.put("ROOT?", node.node instanceof RootNode);
  properties.put("LEAF?", node.edge == null);
  properties.put("RootNode", node.node.getRootNode());
  properties.putAll(node.node.getDebugProperties());
  properties.put("SourceSection", node.node.getSourceSection());
  if (Introspection.isIntrospectable(node.node)) {
    final List<Introspection.SpecializationInfo> specializations = Introspection.getSpecializations(node.node);
    for (Introspection.SpecializationInfo specialization : specializations) {
      properties.put(specialization.getMethodName() + ".isActive", specialization.isActive());
      properties.put(specialization.getMethodName() + ".isExcluded", specialization.isExcluded());
      properties.put(specialization.getMethodName() + ".instances", specialization.getInstances());
    }
  }
}

代码示例来源：origin: com.oracle/truffle

public String displayMethodName(Node node) {
  if (node == null) {
    return null;
  }
  RootNode root = node.getRootNode();
  if (root == null) {
    return "unknown";
  }
  return root.getCallTarget().toString();
}

代码示例来源：origin: com.oracle.truffle/truffle-api

public boolean visit(Node child) {
    if (child != null && child.getParent() == null) {
      newChild.adoptUnadoptedHelper(child);
    }
    return true;
  }
});

代码示例来源：origin: org.graalvm.truffle/truffle-api

static void adoptChildrenHelper(Node currentNode) {
  NodeClass clazz = currentNode.getNodeClass();
  for (Object field : clazz.getNodeFields()) {
    if (clazz.isChildField(field)) {
      if (child != null) {
        Node node = (Node) child;
        if (node.getParent() != currentNode) {
          currentNode.adoptHelper(node);
        if (child != null) {
          Node node = (Node) child;
          if (node.getParent() != currentNode) {
            currentNode.adoptHelper(node);

代码示例来源：origin: org.graalvm.truffle/truffle-api

static void traceRewrite(Node oldNode, Node newNode, CharSequence reason) {
  if (TruffleOptions.TraceRewritesFilterFromCost != null) {
    if (filterByKind(oldNode, TruffleOptions.TraceRewritesFilterFromCost)) {
      return;
    }
  }
  if (TruffleOptions.TraceRewritesFilterToCost != null) {
    if (filterByKind(newNode, TruffleOptions.TraceRewritesFilterToCost)) {
      return;
    }
  }
  String filter = TruffleOptions.TraceRewritesFilterClass;
  Class<? extends Node> from = oldNode.getClass();
  Class<? extends Node> to = newNode.getClass();
  if (filter != null && (filterByContainsClassName(from, filter) || filterByContainsClassName(to, filter))) {
    return;
  }
  final SourceSection reportedSourceSection = oldNode.getEncapsulatingSourceSection();
  PrintStream out = System.out;
  out.printf("[truffle]   rewrite %-50s |From %-40s |To %-40s |Reason %s %s%n", oldNode.toString(), formatNodeInfo(oldNode), formatNodeInfo(newNode),
          reason != null && reason.length() > 0 ? reason : "unknown", formatLocation(reportedSourceSection));
}

代码示例来源：origin: org.graalvm.compiler/compiler

private static String extractSourceSection(OptimizedDirectCallNode node) {
  Node cnode = node;
  while (cnode.getSourceSection() == null && !(cnode instanceof RootNode)) {
    cnode = cnode.getParent();
    if (cnode == null) {
      return "";
    }
  }
  return getShortDescription(cnode.getSourceSection());
}

代码示例来源：origin: com.oracle.truffle/truffle-api

/**
 * Originally returned the <em>tags</em> if any, associated with a node; now unsupported.
 *
 * @since 0.8 or earlier
 */
public static String printSyntaxTags(final Object node) {
  if ((node instanceof Node) && ((Node) node).getSourceSection() != null) {
    return ((Node) node).getSourceSection().toString();
  }
  return "";
}

代码示例来源：origin: org.graalvm.truffle/truffle-api

public SourceSection getInstrumentedSourceSection() {
  SourceSection ss = eventContext.getInstrumentedSourceSection();
  if (ss == null) {
    Node node = eventContext.getInstrumentedNode();
    // Nodes tagged with standard tags should have a source section attached.
    PrintStream err = new PrintStream(env.err());
    err.print("WARNING: Instrumented node " + node + " of class " + node.getClass() + " has null SourceSection.");
    ss = node.getEncapsulatingSourceSection();
    if (ss == null) {
      RootNode root = node.getRootNode();
      err.print("WARNING: and null encapsulating SourceSection under " + root + " of class = " + root.getClass());
    }
    err.flush();
  }
  return ss;
}

代码示例来源：origin: com.oracle/truffle

public void probeAST(Node node) {
    node.accept(this);
  }
}

代码示例来源：origin: com.oracle/truffle

public String displaySourceLocation(Node node) {
  if (node == null) {
    return "<unknown>";
  }
  SourceSection section = node.getSourceSection();
  boolean estimated = false;
  if (section == null) {
    section = node.getEncapsulatingSourceSection();
    estimated = true;
  }
  return section.getShortDescription() + (estimated ? "~" : "");
}

代码示例来源：origin: org.graalvm.compiler/compiler

@Override
  public boolean isCounted(Node node) {
    NodeCost cost = node.getCost();
    boolean polymorphic = cost == NodeCost.POLYMORPHIC || cost == NodeCost.MEGAMORPHIC;
    return polymorphic;
  }
});

代码示例来源：origin: com.oracle/truffle

public static boolean verify(Node root) {
  Iterable<Node> children = root.getChildren();
  for (Node child : children) {
    if (child != null) {
      if (child.getParent() != root) {
        throw new AssertionError(toStringWithClass(child) + ": actual parent=" + toStringWithClass(child.getParent()) + " expected parent=" + toStringWithClass(root));
      }
      verify(child);
    }
  }
  return true;
}

代码示例来源：origin: org.graalvm.compiler/compiler

@Override
public void onCompilationSuccess(OptimizedCallTarget target, TruffleInlining inliningDecision, GraphInfo graph, CompilationResultInfo result) {
  for (Node node : target.nodeIterable(inliningDecision)) {
    if (node != null && (node.getCost() == NodeCost.MEGAMORPHIC || node.getCost() == NodeCost.POLYMORPHIC)) {
      NodeCost cost = node.getCost();
      Map<String, Object> props = new LinkedHashMap<>();
      props.put("simpleName", node.getClass().getSimpleName());
      props.put("subtree", "\n" + NodeUtil.printCompactTreeToString(node));
      String msg = cost == NodeCost.MEGAMORPHIC ? "megamorphic" : "polymorphic";
      runtime.logEvent(0, msg, node.toString(), props);
    }
  }
}