Mercurial > hg > truffle
view truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/builtins/SLStackTraceBuiltin.java @ 22251:8dddde8b20d4
Truffle/SL: provide an "unavailable" SourceSection for every RootNode, using a newly defined static name that identifies "SL Builtin" RootNodes.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Thu, 24 Sep 2015 13:16:52 -0700 |
parents | dc83cc1f94f2 |
children |
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/* * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * The Universal Permissive License (UPL), Version 1.0 * * Subject to the condition set forth below, permission is hereby granted to any * person obtaining a copy of this software, associated documentation and/or * data (collectively the "Software"), free of charge and under any and all * copyright rights in the Software, and any and all patent rights owned or * freely licensable by each licensor hereunder covering either (i) the * unmodified Software as contributed to or provided by such licensor, or (ii) * the Larger Works (as defined below), to deal in both * * (a) the Software, and * * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if * one is included with the Software each a "Larger Work" to which the Software * is contributed by such licensors), * * without restriction, including without limitation the rights to copy, create * derivative works of, display, perform, and distribute the Software and make, * use, sell, offer for sale, import, export, have made, and have sold the * Software and the Larger Work(s), and to sublicense the foregoing rights on * either these or other terms. * * This license is subject to the following condition: * * The above copyright notice and either this complete permission notice or at a * minimum a reference to the UPL must be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.oracle.truffle.sl.builtins; import com.oracle.truffle.api.CallTarget; import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary; import com.oracle.truffle.api.RootCallTarget; import com.oracle.truffle.api.Truffle; import com.oracle.truffle.api.dsl.Specialization; import com.oracle.truffle.api.frame.Frame; import com.oracle.truffle.api.frame.FrameDescriptor; import com.oracle.truffle.api.frame.FrameInstance; import com.oracle.truffle.api.frame.FrameInstance.FrameAccess; import com.oracle.truffle.api.frame.FrameInstanceVisitor; import com.oracle.truffle.api.frame.FrameSlot; import com.oracle.truffle.api.nodes.NodeInfo; import com.oracle.truffle.api.nodes.RootNode; import com.oracle.truffle.api.source.SourceSection; import com.oracle.truffle.sl.SLLanguage; /** * Returns a string representation of the current stack. This includes the {@link CallTarget}s and * the contents of the {@link Frame}. Note that this is implemented as a slow path by passing * {@code true} to {@link FrameInstance#getFrame(FrameAccess, boolean)}. */ @NodeInfo(shortName = "stacktrace") public abstract class SLStackTraceBuiltin extends SLBuiltinNode { public SLStackTraceBuiltin() { super(SourceSection.createUnavailable(SLLanguage.builtinKind, "stacktrace")); } @Specialization public String trace() { return createStackTrace(); } @TruffleBoundary private static String createStackTrace() { final StringBuilder str = new StringBuilder(); Truffle.getRuntime().iterateFrames(new FrameInstanceVisitor<Integer>() { @Override public Integer visitFrame(FrameInstance frameInstance) { CallTarget callTarget = frameInstance.getCallTarget(); Frame frame = frameInstance.getFrame(FrameAccess.READ_ONLY, true); RootNode rn = ((RootCallTarget) callTarget).getRootNode(); if (rn.getClass().getName().contains("SLFunctionForeignAccess")) { return 1; } if (str.length() > 0) { str.append(System.getProperty("line.separator")); } str.append("Frame: ").append(rn.toString()); FrameDescriptor frameDescriptor = frame.getFrameDescriptor(); for (FrameSlot s : frameDescriptor.getSlots()) { str.append(", ").append(s.getIdentifier()).append("=").append(frame.getValue(s)); } return null; } }); return str.toString(); } }