Mercurial > hg > truffle
view truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/instrument/InstrumentationTestNodes.java @ 22241:14e6dfb1ef05
Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
- Caused by lack of a "vm" known to the Accessor during most testing, making the Instrumenter unavailable, which is now required to create a CallTarget
- Modified the Instrumenter/Accessor with a static field that can be reflectively "poked" with a vm value for testing
- Create a pair of methods to globally enable/disable testing mode to modify that static field and restore it when tests complete.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Tue, 22 Sep 2015 20:31:19 -0700 |
parents | 68a0c3dcea10 |
children | b73205fe7cf3 |
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/* * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.truffle.api.test.instrument; import java.lang.reflect.Field; import com.oracle.truffle.api.CallTarget; import com.oracle.truffle.api.frame.VirtualFrame; import com.oracle.truffle.api.instrument.AdvancedInstrumentRoot; import com.oracle.truffle.api.instrument.EventHandlerNode; import com.oracle.truffle.api.instrument.Instrumenter; import com.oracle.truffle.api.instrument.KillException; import com.oracle.truffle.api.instrument.Probe; import com.oracle.truffle.api.instrument.WrapperNode; import com.oracle.truffle.api.nodes.Node; import com.oracle.truffle.api.nodes.NodeCost; import com.oracle.truffle.api.nodes.NodeInfo; import com.oracle.truffle.api.nodes.RootNode; import com.oracle.truffle.api.vm.TruffleVM; /** * Tests instrumentation where a client can attach a node that gets attached into the AST. */ class InstrumentationTestNodes { static Instrumenter createInstrumenter() throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException { TruffleVM vm = TruffleVM.newVM().build(); final Field field = TruffleVM.class.getDeclaredField("instrumenter"); field.setAccessible(true); final Instrumenter instrument = (Instrumenter) field.get(vm); return instrument; } abstract static class TestLanguageNode extends Node { public abstract Object execute(VirtualFrame vFrame); } @NodeInfo(cost = NodeCost.NONE) static class TestLanguageWrapperNode extends TestLanguageNode implements WrapperNode { @Child private TestLanguageNode child; @Child private EventHandlerNode eventHandlerNode; public TestLanguageWrapperNode(TestLanguageNode child) { assert !(child instanceof TestLanguageWrapperNode); this.child = child; } @Override public String instrumentationInfo() { return "Wrapper node for testing"; } @Override public void insertEventHandlerNode(EventHandlerNode eventHandler) { this.eventHandlerNode = eventHandler; } @Override public Probe getProbe() { return eventHandlerNode.getProbe(); } @Override public Node getChild() { return child; } @Override public Object execute(VirtualFrame vFrame) { eventHandlerNode.enter(child, vFrame); Object result; try { result = child.execute(vFrame); eventHandlerNode.returnValue(child, vFrame, result); } catch (KillException e) { throw (e); } catch (Exception e) { eventHandlerNode.returnExceptional(child, vFrame, e); throw (e); } return result; } } /** * A simple node for our test language to store a value. */ static class TestValueNode extends TestLanguageNode { private final int value; public TestValueNode(int value) { this.value = value; } @Override public Object execute(VirtualFrame vFrame) { return new Integer(this.value); } } /** * A node for our test language that adds up two {@link TestValueNode}s. */ static class TestAdditionNode extends TestLanguageNode { @Child private TestLanguageNode leftChild; @Child private TestLanguageNode rightChild; public TestAdditionNode(TestValueNode leftChild, TestValueNode rightChild) { this.leftChild = insert(leftChild); this.rightChild = insert(rightChild); } @Override public Object execute(VirtualFrame vFrame) { return new Integer(((Integer) leftChild.execute(vFrame)).intValue() + ((Integer) rightChild.execute(vFrame)).intValue()); } } /** * Truffle requires that all guest languages to have a {@link RootNode} which sits atop any AST * of the guest language. This is necessary since creating a {@link CallTarget} is how Truffle * completes an AST. The root nodes serves as our entry point into a program. */ static class InstrumentationTestRootNode extends RootNode { @Child private TestLanguageNode body; /** * This constructor emulates the global machinery that applies registered probers to every * newly created AST. Global registry is not used, since that would interfere with other * tests run in the same environment. */ public InstrumentationTestRootNode(TestLanguageNode body) { super(InstrumentationTestingLanguage.class, null, null); this.body = body; } @Override public Object execute(VirtualFrame vFrame) { return body.execute(vFrame); } @Override public boolean isCloningAllowed() { return true; } } /** * Truffle requires that all guest languages to have a {@link RootNode} which sits atop any AST * of the guest language. This is necessary since creating a {@link CallTarget} is how Truffle * completes an AST. The root nodes serves as our entry point into a program. */ static class TestRootNode extends RootNode { @Child private TestLanguageNode body; final Instrumenter instrumenter; /** * This constructor emulates the global machinery that applies registered probers to every * newly created AST. Global registry is not used, since that would interfere with other * tests run in the same environment. */ public TestRootNode(TestLanguageNode body, Instrumenter instrumenter) { super(InstrumentationTestingLanguage.class, null, null); this.instrumenter = instrumenter; this.body = body; } @Override public Object execute(VirtualFrame vFrame) { return body.execute(vFrame); } @Override public boolean isCloningAllowed() { return true; } } static class TestAdvancedInstrumentCounterRoot extends AdvancedInstrumentRoot { private long count; @Override public Object executeRoot(Node node, VirtualFrame vFrame) { count++; return null; } public long getCount() { return count; } public String instrumentationInfo() { return null; } } }