content: /*
   * Copyright 2016 HuntBugs contributors
   * 
   * 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.
   */
  package one.util.huntbugs.detect;
  
  import com.strobel.decompiler.ast.Expression;
  
  import one.util.huntbugs.flow.Exceptional;
  import one.util.huntbugs.flow.Inf;
  import one.util.huntbugs.registry.MethodContext;
  import one.util.huntbugs.registry.anno.AstNodes;
  import one.util.huntbugs.registry.anno.AstVisitor;
  import one.util.huntbugs.registry.anno.WarningDefinition;
  import one.util.huntbugs.util.NodeChain;
  import one.util.huntbugs.warning.Roles;
  import one.util.huntbugs.warning.WarningAnnotation.TypeInfo;
  
  /**
   * @author lan
   *
   */
  @WarningDefinition(category="Correctness", name="ExceptionalExpression", maxScore=80)
  public class ExceptionalExpression {
      @AstVisitor(nodes=AstNodes.EXPRESSIONS)
      public void visit(Expression expr, NodeChain nc, MethodContext mc) {
          Object constValue = Inf.CONST.getValue(expr);
          if(constValue instanceof Exceptional) {
              int priority = 0;
              TypeInfo exc = ((Exceptional) constValue).getType();
              if(nc.isInTry(exc.getTypeName()))
                  priority += 30;
              mc.report("ExceptionalExpression", priority, expr, Roles.EXPRESSION.create(expr), Roles.EXCEPTION
                      .create(exc));
          }
      }
  }
  