| /* |
| * Copyright 2016, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.jf.smalidea.debugging.value; |
| |
| import com.intellij.debugger.DebuggerManagerEx; |
| import com.intellij.debugger.engine.DebugProcessImpl; |
| import com.intellij.debugger.engine.evaluation.EvaluateException; |
| import com.intellij.debugger.engine.evaluation.EvaluationContext; |
| import com.intellij.debugger.impl.DebuggerContextImpl; |
| import com.intellij.debugger.jdi.VirtualMachineProxyImpl; |
| import com.intellij.openapi.project.Project; |
| import com.sun.jdi.Type; |
| import com.sun.jdi.Value; |
| import com.sun.jdi.VirtualMachine; |
| import org.jf.smalidea.debugging.SmaliCodeFragmentFactory; |
| import org.jf.smalidea.psi.impl.SmaliMethod; |
| |
| import javax.annotation.Nonnull; |
| import javax.annotation.Nullable; |
| |
| public class LazyValue<T extends Value> implements Value { |
| private final int registerNumber; |
| private final Project project; |
| private final SmaliMethod method; |
| private final String type; |
| |
| private EvaluationContext evaluationContext; |
| private Value value; |
| |
| public LazyValue(SmaliMethod method, Project project, int registerNumber, String type) { |
| this.method = method; |
| this.project = project; |
| this.registerNumber = registerNumber; |
| this.type = type; |
| } |
| |
| public static LazyValue create(@Nonnull SmaliMethod method, @Nonnull Project project, int registerNumber, |
| @Nonnull String type) { |
| if (type.equals("B")) { |
| return new LazyByteValue(method, project, registerNumber, type); |
| } else if (type.equals("S")) { |
| return new LazyShortValue(method, project, registerNumber, type); |
| } else if (type.equals("J")) { |
| return new LazyLongValue(method, project, registerNumber, type); |
| } else if (type.equals("I")) { |
| return new LazyIntegerValue(method, project, registerNumber, type); |
| } else if (type.equals("F")) { |
| return new LazyFloatValue(method, project, registerNumber, type); |
| } else if (type.equals("D")) { |
| return new LazyDoubleValue(method, project, registerNumber, type); |
| } else if (type.equals("Z")) { |
| return new LazyBooleanValue(method, project, registerNumber, type); |
| } else if (type.equals("C")) { |
| return new LazyCharValue(method, project, registerNumber, type); |
| } else if (type.equals("V")) { |
| return new LazyVoidValue(method, project, registerNumber, type); |
| } else if (type.startsWith("[")) { |
| return new LazyArrayReference(method, project, registerNumber, type); |
| } else if (type.equals("Ljava/lang/String;")) { |
| return new LazyStringReference(method, project, registerNumber, type); |
| } else if (type.equals("Ljava/lang/Class;")) { |
| return new LazyClassObjectReference(method, project, registerNumber, type); |
| } else if (type.equals("Ljava/lang/ThreadGroup;")) { |
| return new LazyThreadGroupReference(method, project, registerNumber, type); |
| } else if (type.equals("Ljava/lang/Thread;")) { |
| return new LazyThreadReference(method, project, registerNumber, type); |
| } else if (type.equals("Ljava/lang/ClassLoader;")) { |
| return new LazyClassLoaderReference(method, project, registerNumber, type); |
| } else if (type.startsWith("L")) { |
| return new LazyObjectReference(method, project, registerNumber, type); |
| } |
| return new LazyValue(method, project, registerNumber, type); |
| } |
| |
| @Nullable |
| private T getNullableValue() { |
| if (value == null) { |
| try { |
| if (evaluationContext == null) { |
| final DebuggerContextImpl debuggerContext = DebuggerManagerEx.getInstanceEx(project).getContext(); |
| evaluationContext = debuggerContext.createEvaluationContext(); |
| if (evaluationContext == null) { |
| return null; |
| } |
| } |
| |
| value = SmaliCodeFragmentFactory.evaluateRegister(evaluationContext, method, registerNumber, type); |
| evaluationContext = null; |
| } catch (EvaluateException ex) { |
| return null; |
| } |
| } |
| return (T)value; |
| } |
| |
| @Nonnull |
| protected T getValue() { |
| T value = getNullableValue(); |
| assert value != null; |
| return value; |
| } |
| |
| @Override |
| public Type type() { |
| return getValue().type(); |
| } |
| |
| @Override |
| public VirtualMachine virtualMachine() { |
| if (evaluationContext != null) { |
| return ((VirtualMachineProxyImpl)evaluationContext.getDebugProcess().getVirtualMachineProxy()) |
| .getVirtualMachine(); |
| } else { |
| final DebuggerContextImpl debuggerContext = DebuggerManagerEx.getInstanceEx(project).getContext(); |
| final DebugProcessImpl process = debuggerContext.getDebugProcess(); |
| if (process != null) { |
| return process.getVirtualMachineProxy().getVirtualMachine(); |
| } |
| } |
| return null; |
| } |
| |
| public void setEvaluationContext(@Nonnull EvaluationContext evaluationContext) { |
| this.evaluationContext = evaluationContext; |
| } |
| |
| @Override public boolean equals(Object obj) { |
| Value value = getNullableValue(); |
| if (value != null) { |
| return value.equals(obj); |
| } |
| return super.equals(obj); |
| } |
| |
| @Override public int hashCode() { |
| Value value = getNullableValue(); |
| if (value != null) { |
| return value.hashCode(); |
| } |
| return super.hashCode(); |
| } |
| |
| @Override public String toString() { |
| Value value = getNullableValue(); |
| if (value != null) { |
| return value.toString(); |
| } |
| return super.toString(); |
| } |
| } |