| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.modules.debugger.jpda.backend.truffle; |
| |
| import com.oracle.truffle.api.CallTarget; |
| import com.oracle.truffle.api.RootCallTarget; |
| import com.oracle.truffle.api.Truffle; |
| import com.oracle.truffle.api.frame.Frame; |
| import com.oracle.truffle.api.frame.FrameInstance; |
| import com.oracle.truffle.api.frame.FrameInstanceVisitor; |
| import com.oracle.truffle.api.frame.FrameSlot; |
| import com.oracle.truffle.api.instrumentation.InstrumentableNode; |
| import com.oracle.truffle.api.instrumentation.StandardTags; |
| import com.oracle.truffle.api.instrumentation.Tag; |
| import com.oracle.truffle.api.nodes.Node; |
| import com.oracle.truffle.api.nodes.NodeUtil; |
| import com.oracle.truffle.api.nodes.RootNode; |
| import com.oracle.truffle.api.source.SourceSection; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * |
| * @author martin |
| */ |
| public class TruffleAST { |
| |
| private final FrameInstance frameInstance; |
| |
| private TruffleAST(FrameInstance frameInstance) { |
| this.frameInstance = frameInstance; |
| } |
| |
| static TruffleAST get(int depth) { |
| final AtomicInteger frameDepth = new AtomicInteger(depth); |
| FrameInstance frameInstance = Truffle.getRuntime().iterateFrames(new FrameInstanceVisitor<FrameInstance>() { |
| @Override |
| public FrameInstance visitFrame(FrameInstance frameInstance) { |
| CallTarget callTarget = frameInstance.getCallTarget(); |
| if (!(callTarget instanceof RootCallTarget)) { |
| return null; |
| } |
| RootCallTarget rct = (RootCallTarget) callTarget; |
| SourceSection rootSourceSection = rct.getRootNode().getSourceSection(); |
| if (rootSourceSection != null) { |
| if (frameDepth.getAndDecrement() == 0) { |
| return frameInstance; |
| } |
| } |
| return null; |
| } |
| }); |
| return frameInstance == null ? null : new TruffleAST(frameInstance); |
| } |
| |
| public Object[] getRawArguments() { |
| return frameInstance.getFrame(FrameInstance.FrameAccess.MATERIALIZE).getArguments(); |
| } |
| |
| public Object[] getRawSlots() { |
| Frame frame = frameInstance.getFrame(FrameInstance.FrameAccess.MATERIALIZE); |
| List<? extends FrameSlot> slots = frame.getFrameDescriptor().getSlots(); |
| int n = slots.size(); |
| Object[] slotInfo = new Object[2*n]; |
| for (int i = 0; i < n; i++) { |
| FrameSlot slot = slots.get(i); |
| slotInfo[2*i] = slot.getIdentifier(); |
| slotInfo[2*i + 1] = frame.getValue(slot); |
| } |
| return slotInfo; |
| } |
| |
| /** |
| * Get the nodes hierarchy. Every node is described by: |
| * <ul> |
| * <li>node class</li> |
| * <li>node description</li> |
| * <li>node source section - either an empty line, or following items:</li> |
| * <ul> |
| * <li>URI</li> |
| * <li><start line>:<start column>-<end line>:<end column></li> |
| * </ul> |
| * <li>number of children</li> |
| * <li><child nodes follow...></li> |
| * </ul> |
| * @return a newline-separated list of elements describing the nodes hierarchy. |
| */ |
| public String getNodes() { |
| StringBuilder nodes = new StringBuilder(); |
| RootCallTarget rct = (RootCallTarget) frameInstance.getCallTarget(); |
| RootNode rootNode = rct.getRootNode(); |
| fillNode(rootNode, nodes); |
| return nodes.toString(); |
| } |
| |
| private static void fillNode(Node node, StringBuilder nodes) { |
| nodes.append(node.getClass().getName()); |
| nodes.append('\n'); |
| nodes.append(node.getDescription()); |
| nodes.append('\n'); |
| SourceSection ss = node.getSourceSection(); |
| if (ss == null) { |
| nodes.append('\n'); |
| } else { |
| nodes.append(ss.getSource().getURI().toString()); |
| nodes.append('\n'); |
| nodes.append(Integer.toString(ss.getStartLine())); |
| nodes.append(':'); |
| nodes.append(Integer.toString(ss.getStartColumn())); |
| nodes.append('-'); |
| nodes.append(Integer.toString(ss.getEndLine())); |
| nodes.append(':'); |
| nodes.append(Integer.toString(ss.getEndColumn())); |
| nodes.append('\n'); |
| //nodes.add(ss.getCode()); |
| } |
| // TAGS: |
| try { |
| StringBuilder tags = new StringBuilder(); |
| if (node instanceof InstrumentableNode) { |
| InstrumentableNode inode = (InstrumentableNode) node; |
| for (Class<?> tag : StandardTags.class.getDeclaredClasses()) { |
| if (Tag.class.isAssignableFrom(tag)) { |
| if (inode.hasTag(tag.asSubclass(Tag.class))) { |
| if (tags.length() > 0) { |
| tags.append(','); |
| } |
| tags.append(tag.getSimpleName()); |
| } |
| } |
| } |
| } |
| nodes.append(tags); |
| } catch (Throwable t) { |
| } |
| nodes.append('\n'); |
| List<Node> ch = NodeUtil.findNodeChildren(node); |
| nodes.append(Integer.toString(ch.size())); |
| nodes.append('\n'); |
| for (Node n : ch) { |
| fillNode(n, nodes); |
| } |
| } |
| |
| } |