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.Node; 20 import com.github.javaparser.ast.body.FieldDeclaration; 21 import com.github.javaparser.ast.body.Parameter; 22 import com.github.javaparser.ast.body.VariableDeclarator; 23 import com.github.javaparser.ast.expr.LambdaExpr; 24 import com.github.javaparser.ast.expr.MethodCallExpr; 25 import com.github.javaparser.ast.expr.VariableDeclarationExpr; 26 import com.github.javaparser.resolution.declarations.ResolvedTypeDeclaration; 27 import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration; 28 import com.github.javaparser.resolution.types.ResolvedArrayType; 29 import com.github.javaparser.resolution.types.ResolvedPrimitiveType; 30 import com.github.javaparser.resolution.types.ResolvedType; 31 import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFacade; 32 import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFactory; 33 import com.github.javaparser.symbolsolver.model.resolution.TypeSolver; 34 35 import static com.github.javaparser.symbolsolver.javaparser.Navigator.requireParentNode; 36 37 /** 38 * @author Federico Tomassetti 39 */ 40 public class JavaParserSymbolDeclaration implements ResolvedValueDeclaration { 41 42 private String name; 43 private Node wrappedNode; 44 private boolean field; 45 private boolean parameter; 46 private boolean variable; 47 private TypeSolver typeSolver; 48 49 private JavaParserSymbolDeclaration(Node wrappedNode, String name, TypeSolver typeSolver, boolean field, boolean parameter, boolean variable) { 50 this.name = name; 51 this.wrappedNode = wrappedNode; 52 this.field = field; 53 this.variable = variable; 54 this.parameter = parameter; 55 this.typeSolver = typeSolver; 56 } 57 58 public static JavaParserFieldDeclaration field(VariableDeclarator wrappedNode, TypeSolver typeSolver) { 59 return new JavaParserFieldDeclaration(wrappedNode, typeSolver); 60 } 61 62 public static JavaParserParameterDeclaration parameter(Parameter parameter, TypeSolver typeSolver) { 63 return new JavaParserParameterDeclaration(parameter, typeSolver); 64 } 65 66 public static JavaParserSymbolDeclaration localVar(VariableDeclarator variableDeclarator, TypeSolver typeSolver) { 67 return new JavaParserSymbolDeclaration(variableDeclarator, variableDeclarator.getName().getId(), typeSolver, false, false, true); 68 } 69 70 public static int getParamPos(Parameter parameter) { 71 int pos = 0; 72 for (Node node : requireParentNode(parameter).getChildNodes()) { 73 if (node == parameter) { 74 return pos; 75 } else if (node instanceof Parameter) { 76 pos++; 77 } 78 } 79 return pos; 80 } 81 82 public static int getParamPos(Node node) { 83 if (requireParentNode(node) instanceof MethodCallExpr) { 84 MethodCallExpr call = (MethodCallExpr) requireParentNode(node); 85 for (int i = 0; i < call.getArguments().size(); i++) { 86 if (call.getArguments().get(i) == node) return i; 87 } 88 throw new IllegalStateException(); 89 } 90 throw new IllegalArgumentException(); 91 } 92 93 @Override 94 public String toString() { 95 return "JavaParserSymbolDeclaration{" + 96 "name='" + name + '\'' + 97 ", wrappedNode=" + wrappedNode + 98 '}'; 99 } 100 101 @Override 102 public String getName() { 103 return name; 104 } 105 106 @Override 107 public boolean isField() { 108 return field; 109 } 110 111 @Override 112 public boolean isParameter() { 113 return parameter; 114 } 115 116 @Override 117 public boolean isType() { 118 return false; 119 } 120 121 @Override 122 public ResolvedType getType() { 123 if (wrappedNode instanceof Parameter) { 124 Parameter parameter = (Parameter) wrappedNode; 125 if (requireParentNode(wrappedNode) instanceof LambdaExpr) { 126 int pos = getParamPos(parameter); 127 ResolvedType lambdaType = JavaParserFacade.get(typeSolver).getType(requireParentNode(wrappedNode)); 128 129 // TODO understand from the context to which method this corresponds 130 //MethodDeclaration methodDeclaration = JavaParserFacade.get(typeSolver).getMethodCalled 131 //MethodDeclaration methodCalled = JavaParserFacade.get(typeSolver).solve() 132 throw new UnsupportedOperationException(wrappedNode.getClass().getCanonicalName()); 133 } else { 134 final ResolvedType rawType; 135 if (parameter.getType() instanceof com.github.javaparser.ast.type.PrimitiveType) { 136 rawType = ResolvedPrimitiveType.byName(((com.github.javaparser.ast.type.PrimitiveType) parameter.getType()).getType().name()); 137 } else { 138 rawType = JavaParserFacade.get(typeSolver).convertToUsage(parameter.getType(), wrappedNode); 139 } 140 if (parameter.isVarArgs()) { 141 return new ResolvedArrayType(rawType); 142 } 143 return rawType; 144 } 145 } else if (wrappedNode instanceof VariableDeclarator) { 146 VariableDeclarator variableDeclarator = (VariableDeclarator) wrappedNode; 147 if (requireParentNode(wrappedNode) instanceof VariableDeclarationExpr) { 148 return JavaParserFacade.get(typeSolver).convert(variableDeclarator.getType(), JavaParserFactory.getContext(wrappedNode, typeSolver)); 149 } else if (requireParentNode(wrappedNode) instanceof FieldDeclaration) { 150 return JavaParserFacade.get(typeSolver).convert(variableDeclarator.getType(), JavaParserFactory.getContext(wrappedNode, typeSolver)); 151 } 152 } 153 throw new UnsupportedOperationException(wrappedNode.getClass().getCanonicalName()); 154 } 155 156 @Override 157 public ResolvedTypeDeclaration asType() { 158 throw new UnsupportedOperationException(this.getClass().getCanonicalName() + ": wrapping " + this.getWrappedNode().getClass().getCanonicalName()); 159 } 160 161 /** 162 * Returns the JavaParser node associated with this JavaParserSymbolDeclaration. 163 * 164 * @return A visitable JavaParser node wrapped by this object. 165 */ 166 public Node getWrappedNode() { 167 return wrappedNode; 168 } 169 170 171 } 172