java/debugger/impl/src/com/intellij/debugger/engine/evaluation/expression/TypeEvaluator.java

/*
 * Copyright 2000-2009 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 TypeEvaluator
 * @author Jeka
 */
package com.intellij.debugger.engine.evaluation.expression;

import com.intellij.debugger.DebuggerBundle;
import com.intellij.debugger.engine.DebugProcessImpl;
import com.intellij.debugger.engine.JVMName;
import com.intellij.debugger.engine.evaluation.EvaluateException;
import com.intellij.debugger.engine.evaluation.EvaluateExceptionUtil;
import com.intellij.debugger.engine.evaluation.EvaluationContextImpl;
import com.sun.jdi.ReferenceType;

public class TypeEvaluator implements Evaluator {
  private final JVMName myTypeName;

  public TypeEvaluator(JVMName typeName) {
    myTypeName = typeName;
  }

  public Modifier getModifier() {
    return null;
  }

  /**
   * @return ReferenceType in the target VM, with the given fully qualified name
   */
  public Object evaluate(EvaluationContextImpl context) throws EvaluateException {
    DebugProcessImpl debugProcess = context.getDebugProcess();
    String typeName = myTypeName.getName(debugProcess);
    final ReferenceType type = debugProcess.findClass(context, typeName, context.getClassLoader());
    if (type == null) {
      throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("error.class.not.loaded", typeName));
    }
    return type;
  }
}