| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed 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. |
| */ |
| |
| /* |
| * Class TypeCastEvaluator |
| * @author Jeka |
| */ |
| package com.intellij.debugger.engine.evaluation.expression; |
| |
| import com.intellij.debugger.DebuggerBundle; |
| import com.intellij.debugger.engine.DebuggerUtils; |
| import com.intellij.debugger.engine.evaluation.EvaluateException; |
| import com.intellij.debugger.engine.evaluation.EvaluateExceptionUtil; |
| import com.intellij.debugger.engine.evaluation.EvaluationContextImpl; |
| import com.intellij.debugger.impl.DebuggerUtilsEx; |
| import com.intellij.debugger.jdi.VirtualMachineProxyImpl; |
| import com.sun.jdi.*; |
| |
| public class TypeCastEvaluator implements Evaluator { |
| private final Evaluator myOperandEvaluator; |
| private final String myCastType; |
| private final boolean myIsPrimitive; |
| |
| public TypeCastEvaluator(Evaluator operandEvaluator, String castType, boolean isPrimitive) { |
| myOperandEvaluator = operandEvaluator; |
| myCastType = castType; |
| myIsPrimitive = isPrimitive; |
| } |
| |
| public Modifier getModifier() { |
| return null; |
| } |
| |
| public Object evaluate(EvaluationContextImpl context) throws EvaluateException { |
| Value value = (Value)myOperandEvaluator.evaluate(context); |
| if (value == null) { |
| if (myIsPrimitive) { |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.cannot.cast.null", myCastType)); |
| } |
| return null; |
| } |
| VirtualMachineProxyImpl vm = context.getDebugProcess().getVirtualMachineProxy(); |
| if (DebuggerUtils.isInteger(value)) { |
| value = DebuggerUtilsEx.createValue(vm, myCastType, ((PrimitiveValue)value).longValue()); |
| if (value == null) { |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.cannot.cast.numeric", myCastType)); |
| } |
| } |
| else if (DebuggerUtils.isNumeric(value)) { |
| value = DebuggerUtilsEx.createValue(vm, myCastType, ((PrimitiveValue)value).doubleValue()); |
| if (value == null) { |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.cannot.cast.numeric", myCastType)); |
| } |
| } |
| else if (value instanceof BooleanValue) { |
| value = DebuggerUtilsEx.createValue(vm, myCastType, ((BooleanValue)value).booleanValue()); |
| if (value == null) { |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.cannot.cast.boolean", myCastType)); |
| } |
| } |
| else if (value instanceof CharValue) { |
| value = DebuggerUtilsEx.createValue(vm, myCastType, ((CharValue)value).charValue()); |
| if (value == null) { |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.cannot.cast.char", myCastType)); |
| } |
| } |
| else if (value instanceof ObjectReference) { |
| Type type = value.type(); |
| if (!DebuggerUtils.instanceOf(type, myCastType)) { |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.cannot.cast.object", type.name(), myCastType)); |
| } |
| } |
| |
| return value; |
| } |
| } |