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      1 /*
      2  * Copyright 2016 Federico Tomassetti
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.github.javaparser.symbolsolver.javaparsermodel.declarations;
     18 
     19 import com.github.javaparser.ast.body.Parameter;
     20 import com.github.javaparser.ast.type.UnknownType;
     21 import com.github.javaparser.resolution.declarations.ResolvedParameterDeclaration;
     22 import com.github.javaparser.resolution.types.ResolvedArrayType;
     23 import com.github.javaparser.resolution.types.ResolvedType;
     24 import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFacade;
     25 import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFactory;
     26 import com.github.javaparser.symbolsolver.javaparsermodel.contexts.LambdaExprContext;
     27 import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
     28 import com.github.javaparser.symbolsolver.model.resolution.Value;
     29 
     30 import java.util.Optional;
     31 
     32 /**
     33  * @author Federico Tomassetti
     34  */
     35 public class JavaParserParameterDeclaration implements ResolvedParameterDeclaration {
     36 
     37     private Parameter wrappedNode;
     38     private TypeSolver typeSolver;
     39 
     40     public JavaParserParameterDeclaration(Parameter wrappedNode, TypeSolver typeSolver) {
     41         this.wrappedNode = wrappedNode;
     42         this.typeSolver = typeSolver;
     43     }
     44 
     45     @Override
     46     public String getName() {
     47         return wrappedNode.getName().getId();
     48     }
     49 
     50     @Override
     51     public boolean isField() {
     52         return false;
     53     }
     54 
     55     @Override
     56     public boolean isParameter() {
     57         return true;
     58     }
     59 
     60     @Override
     61     public boolean isVariadic() {
     62         return wrappedNode.isVarArgs();
     63     }
     64 
     65     @Override
     66     public boolean isType() {
     67         throw new UnsupportedOperationException();
     68     }
     69 
     70     @Override
     71     public ResolvedType getType() {
     72         if (wrappedNode.getType() instanceof UnknownType && JavaParserFactory.getContext(wrappedNode, typeSolver) instanceof LambdaExprContext) {
     73             Optional<Value> value = JavaParserFactory.getContext(wrappedNode, typeSolver).solveSymbolAsValue(wrappedNode.getNameAsString(), typeSolver);
     74             if (value.isPresent()) {
     75                 return value.get().getType();
     76             }
     77         }
     78         ResolvedType res = JavaParserFacade.get(typeSolver).convert(wrappedNode.getType(), wrappedNode);
     79         if (isVariadic()) {
     80             res = new ResolvedArrayType(res);
     81         }
     82         return res;
     83     }
     84 
     85     @Override
     86     public ResolvedParameterDeclaration asParameter() {
     87         return this;
     88     }
     89 
     90     /**
     91      * Returns the JavaParser node associated with this JavaParserParameterDeclaration.
     92      *
     93      * @return A visitable JavaParser node wrapped by this object.
     94      */
     95     public Parameter getWrappedNode() {
     96         return wrappedNode;
     97     }
     98 
     99 
    100 }
    101