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TryWithResourceContext.java
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TryWithResourceContext.java
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/*
* Copyright 2016 Federico Tomassetti
*
* 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 com.github.javaparser.symbolsolver.javaparsermodel.contexts;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.body.VariableDeclarator;
import com.github.javaparser.ast.expr.Expression;
import com.github.javaparser.ast.expr.VariableDeclarationExpr;
import com.github.javaparser.ast.stmt.BlockStmt;
import com.github.javaparser.ast.stmt.TryStmt;
import com.github.javaparser.resolution.declarations.ResolvedMethodDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.javaparsermodel.declarations.JavaParserSymbolDeclaration;
import com.github.javaparser.symbolsolver.model.resolution.SymbolReference;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
import com.github.javaparser.symbolsolver.model.resolution.Value;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import static com.github.javaparser.symbolsolver.javaparser.Navigator.getParentNode;
import static com.github.javaparser.symbolsolver.javaparser.Navigator.requireParentNode;
public class TryWithResourceContext extends AbstractJavaParserContext<TryStmt> {
public TryWithResourceContext(TryStmt wrappedNode, TypeSolver typeSolver) {
super(wrappedNode, typeSolver);
}
@Override
public Optional<Value> solveSymbolAsValue(String name, TypeSolver typeSolver) {
for (Expression expr : wrappedNode.getResources()) {
if (expr instanceof VariableDeclarationExpr) {
for (VariableDeclarator v : ((VariableDeclarationExpr)expr).getVariables()) {
if (v.getName().getIdentifier().equals(name)) {
JavaParserSymbolDeclaration decl = JavaParserSymbolDeclaration.localVar(v, typeSolver);
return Optional.of(Value.from(decl));
}
}
}
}
if (requireParentNode(wrappedNode) instanceof BlockStmt) {
return StatementContext.solveInBlockAsValue(name, typeSolver, wrappedNode);
} else {
return getParent().solveSymbolAsValue(name, typeSolver);
}
}
@Override
public SymbolReference<? extends ResolvedValueDeclaration> solveSymbol(String name, TypeSolver typeSolver) {
for (Expression expr : wrappedNode.getResources()) {
if (expr instanceof VariableDeclarationExpr) {
for (VariableDeclarator v : ((VariableDeclarationExpr)expr).getVariables()) {
if (v.getName().getIdentifier().equals(name)) {
return SymbolReference.solved(JavaParserSymbolDeclaration.localVar(v, typeSolver));
}
}
}
}
if (requireParentNode(wrappedNode) instanceof BlockStmt) {
return StatementContext.solveInBlock(name, typeSolver, wrappedNode);
} else {
return getParent().solveSymbol(name, typeSolver);
}
}
@Override
public SymbolReference<ResolvedMethodDeclaration> solveMethod(String name, List<ResolvedType> argumentsTypes,
boolean staticOnly, TypeSolver typeSolver) {
return getParent().solveMethod(name, argumentsTypes, false, typeSolver);
}
@Override
public List<VariableDeclarator> localVariablesExposedToChild(Node child) {
for (int i=0;i<wrappedNode.getResources().size();i++) {
if (child == wrappedNode.getResources().get(i)) {
return wrappedNode.getResources().subList(0, i).stream()
.map(e -> e instanceof VariableDeclarationExpr ? ((VariableDeclarationExpr) e).getVariables() : Collections.<VariableDeclarator>emptyList())
.flatMap(List::stream)
.collect(Collectors.toList());
}
}
if (child == wrappedNode.getTryBlock()) {
List<VariableDeclarator> res = new LinkedList<>();
for (Expression expr : wrappedNode.getResources()) {
if (expr instanceof VariableDeclarationExpr) {
res.addAll(((VariableDeclarationExpr)expr).getVariables());
}
}
return res;
}
return Collections.emptyList();
}
}