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/*
* Copyright (C) 2007-2010 Júlio Vilmar Gesser.
* Copyright (C) 2011, 2013-2016 The JavaParser Team.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
package com.github.javaparser.ast.body;
import com.github.javaparser.Range;
import com.github.javaparser.ast.ArrayBracketPair;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.expr.Expression;
import com.github.javaparser.ast.expr.NameExpr;
import com.github.javaparser.ast.nodeTypes.NodeWithElementType;
import com.github.javaparser.ast.nodeTypes.NodeWithType;
import com.github.javaparser.ast.type.ArrayType;
import com.github.javaparser.ast.type.Type;
import com.github.javaparser.ast.visitor.GenericVisitor;
import com.github.javaparser.ast.visitor.VoidVisitor;
import com.github.javaparser.utils.Pair;
import java.util.List;
import static com.github.javaparser.ast.type.ArrayType.wrapInArrayTypes;
/**
* @author Julio Vilmar Gesser
*/
public final class VariableDeclarator extends Node implements
NodeWithType<VariableDeclarator> {
private VariableDeclaratorId id;
private Expression init;
public VariableDeclarator() {
}
public VariableDeclarator(VariableDeclaratorId id) {
setId(id);
}
public VariableDeclarator(String variableName) {
setId(new VariableDeclaratorId(variableName));
}
/**
* Defines the declaration of a variable.
*
* @param id The identifier for this variable. IE. The variables name.
* @param init What this variable should be initialized to.
* An {@link com.github.javaparser.ast.expr.AssignExpr} is unnecessary as the <code>=</code> operator is
* already added.
*/
public VariableDeclarator(VariableDeclaratorId id, Expression init) {
setId(id);
setInit(init);
}
public VariableDeclarator(String variableName, Expression init) {
setId(new VariableDeclaratorId(variableName));
setInit(init);
}
public VariableDeclarator(Range range, VariableDeclaratorId id, Expression init) {
super(range);
setId(id);
setInit(init);
}
@Override
public <R, A> R accept(GenericVisitor<R, A> v, A arg) {
return v.visit(this, arg);
}
@Override
public <A> void accept(VoidVisitor<A> v, A arg) {
v.visit(this, arg);
}
public VariableDeclaratorId getId() {
return id;
}
public Expression getInit() {
return init;
}
public VariableDeclarator setId(VariableDeclaratorId id) {
this.id = id;
setAsParentNodeOf(this.id);
return this;
}
public VariableDeclarator setInit(Expression init) {
this.init = init;
setAsParentNodeOf(this.init);
return this;
}
/**
* Will create a {@link NameExpr} with the init param
*/
public VariableDeclarator setInit(String init) {
this.init = new NameExpr(init);
setAsParentNodeOf(this.init);
return this;
}
@Override
public Type getType() {
NodeWithElementType<?> elementType = getParentNodeOfType(NodeWithElementType.class);
return wrapInArrayTypes(elementType.getElementType(),
elementType.getArrayBracketPairsAfterElementType(),
getId().getArrayBracketPairsAfterId());
}
@Override
public VariableDeclarator setType(Type type) {
Pair<Type, List<ArrayBracketPair>> unwrapped = ArrayType.unwrapArrayTypes(type);
NodeWithElementType<?> nodeWithElementType = getParentNodeOfType(NodeWithElementType.class);
if (nodeWithElementType == null) {
throw new IllegalStateException("Cannot set type without a parent");
}
nodeWithElementType.setElementType(unwrapped.a);
nodeWithElementType.setArrayBracketPairsAfterElementType(null);
getId().setArrayBracketPairsAfterId(unwrapped.b);
return this;
}
}
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