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introduce JavaParserVariableDeclaration #1668
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ftomassetti committed Aug 9, 2018
1 parent e40dd3e commit 45733b0
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Showing 6 changed files with 108 additions and 6 deletions.
Expand Up @@ -48,6 +48,7 @@
import com.github.javaparser.TokenRange;
import com.github.javaparser.resolution.Resolvable;
import com.github.javaparser.resolution.declarations.ResolvedFieldDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration;

/**
* The declaration of a variable.<br/>In <code>int x = 14, y = 3;</code> "int x = 14" and "int y = 3" are
Expand All @@ -56,7 +57,7 @@
*
* @author Julio Vilmar Gesser
*/
public final class VariableDeclarator extends Node implements NodeWithType<VariableDeclarator, Type>, NodeWithSimpleName<VariableDeclarator>, Resolvable<ResolvedFieldDeclaration> {
public final class VariableDeclarator extends Node implements NodeWithType<VariableDeclarator, Type>, NodeWithSimpleName<VariableDeclarator>, Resolvable<ResolvedValueDeclaration> {

private SimpleName name;

Expand Down Expand Up @@ -275,7 +276,7 @@ public boolean replace(Node node, Node replacementNode) {
}

@Override
public ResolvedFieldDeclaration resolve() {
return getSymbolResolver().resolveDeclaration(this, ResolvedFieldDeclaration.class);
public ResolvedValueDeclaration resolve() {
return getSymbolResolver().resolveDeclaration(this, ResolvedValueDeclaration.class);
}
}
Expand Up @@ -47,6 +47,13 @@ default boolean isField() {
return false;
}

/**
* Does this declaration represents a variable?
*/
default boolean isVariable() {
return false;
}

default boolean isEnumConstant() {
return false;
}
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Expand Up @@ -120,7 +120,14 @@ public <T> T resolveDeclaration(Node node, Class<T> resultClass) {
}
}
if (node instanceof VariableDeclarator) {
ResolvedFieldDeclaration resolved = new JavaParserFieldDeclaration((VariableDeclarator) node, typeSolver);
ResolvedValueDeclaration resolved;
if (node.getParentNode().isPresent() && node.getParentNode().get() instanceof FieldDeclaration) {
resolved = new JavaParserFieldDeclaration((VariableDeclarator) node, typeSolver);
} else if (node.getParentNode().isPresent() && node.getParentNode().get() instanceof VariableDeclarationExpr) {
resolved = new JavaParserVariableDeclaration((VariableDeclarator) node, typeSolver);
} else {
throw new UnsupportedOperationException("Parent of VariableDeclarator is: " + node.getParentNode());
}
if (resultClass.isInstance(resolved)) {
return resultClass.cast(resolved);
}
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Expand Up @@ -55,6 +55,10 @@ public JavaParserFieldDeclaration(VariableDeclarator variableDeclarator, TypeSol
this.wrappedNode = (com.github.javaparser.ast.body.FieldDeclaration) requireParentNode(variableDeclarator);
}

/**
* @deprecated Use JavaParserEnumConstantDeclaration instead.
*/
@Deprecated
public JavaParserFieldDeclaration(EnumConstantDeclaration enumConstantDeclaration, TypeSolver typeSolver) {
if (typeSolver == null) {
throw new IllegalArgumentException("typeSolver should not be null");
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@@ -0,0 +1,82 @@
/*
* 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.declarations;

import com.github.javaparser.ast.body.VariableDeclarator;
import com.github.javaparser.ast.expr.VariableDeclarationExpr;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFacade;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;

import static com.github.javaparser.symbolsolver.javaparser.Navigator.requireParentNode;

/**
* @author Federico Tomassetti
*/
public class JavaParserVariableDeclaration implements ResolvedValueDeclaration {

private VariableDeclarator variableDeclarator;
private VariableDeclarationExpr wrappedNode;
private TypeSolver typeSolver;

public JavaParserVariableDeclaration(VariableDeclarator variableDeclarator, TypeSolver typeSolver) {
if (typeSolver == null) {
throw new IllegalArgumentException("typeSolver should not be null");
}
this.variableDeclarator = variableDeclarator;
this.typeSolver = typeSolver;
if (!(requireParentNode(variableDeclarator) instanceof VariableDeclarationExpr)) {
throw new IllegalStateException(requireParentNode(variableDeclarator).getClass().getCanonicalName());
}
this.wrappedNode = (VariableDeclarationExpr) requireParentNode(variableDeclarator);
}

@Override
public ResolvedType getType() {
return JavaParserFacade.get(typeSolver).convert(variableDeclarator.getType(), wrappedNode);
}

@Override
public String getName() {
return variableDeclarator.getName().getId();
}

@Override
public boolean isVariable() {
return true;
}

/**
* Returns the JavaParser node associated with this JavaParserFieldDeclaration.
*
* @return A visitable JavaParser node wrapped by this object.
*/
public VariableDeclarationExpr getWrappedNode() {
return wrappedNode;
}

public VariableDeclarator getVariableDeclarator() {
return variableDeclarator;
}

@Override
public String toString() {
return "JavaParserVariableDeclaration{" + getName() + "}";
}

}
Expand Up @@ -5,6 +5,7 @@
import com.github.javaparser.ast.body.VariableDeclarator;
import com.github.javaparser.ast.expr.VariableDeclarationExpr;
import com.github.javaparser.resolution.declarations.ResolvedFieldDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
Expand Down Expand Up @@ -49,7 +50,7 @@ public void testResolveArrayDeclaration() {
VariableDeclarationExpr variableDeclarationExpr = (VariableDeclarationExpr) variableDeclarator.getParentNode().get();
ResolvedType resolvedType = variableDeclarationExpr.calculateResolvedType();
assertEquals("java.lang.String[]", resolvedType.describe());
ResolvedFieldDeclaration resolve = variableDeclarator.resolve();
assertEquals("java.lang.String[]", resolve.declaringType().getQualifiedName());
ResolvedValueDeclaration resolve = variableDeclarator.resolve();
assertEquals("java.lang.String[]", resolve.getType().describe());
}
}

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