1 files changed, 281 insertions, 0 deletions
diff --git a/javaparser-core/src/main/java/com/github/javaparser/ast/body/VariableDeclarator.java b/javaparser-core/src/main/java/com/github/javaparser/ast/body/VariableDeclarator.java
new file mode 100644
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+++ b/javaparser-core/src/main/java/com/github/javaparser/ast/body/VariableDeclarator.java
@@ -0,0 +1,281 @@
+/*
+ * 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.ast.AllFieldsConstructor;
+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.expr.SimpleName;
+import com.github.javaparser.ast.nodeTypes.NodeWithSimpleName;
+import com.github.javaparser.ast.nodeTypes.NodeWithType;
+import com.github.javaparser.ast.nodeTypes.NodeWithVariables;
+import com.github.javaparser.ast.observer.AstObserverAdapter;
+import com.github.javaparser.ast.observer.ObservableProperty;
+import com.github.javaparser.ast.type.ClassOrInterfaceType;
+import com.github.javaparser.ast.type.Type;
+import com.github.javaparser.ast.visitor.CloneVisitor;
+import com.github.javaparser.ast.visitor.GenericVisitor;
+import com.github.javaparser.ast.visitor.VoidVisitor;
+import com.github.javaparser.metamodel.JavaParserMetaModel;
+import com.github.javaparser.metamodel.NonEmptyProperty;
+import com.github.javaparser.metamodel.OptionalProperty;
+import com.github.javaparser.metamodel.VariableDeclaratorMetaModel;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Optional;
+import static com.github.javaparser.utils.Utils.assertNonEmpty;
+import static com.github.javaparser.utils.Utils.assertNotNull;
+import javax.annotation.Generated;
+import com.github.javaparser.TokenRange;
+import com.github.javaparser.resolution.Resolvable;
+import com.github.javaparser.resolution.declarations.ResolvedFieldDeclaration;
+
+/**
+ * The declaration of a variable.<br/>In <code>int x = 14, y = 3;</code> "int x = 14"  and "int y = 3"  are
+ * VariableDeclarators.
+ * <p/>The type is on all of the variable declarators because, thanks to array brackets, each variable can have a different type.
+ *
+ * @author Julio Vilmar Gesser
+ */
+public final class VariableDeclarator extends Node implements NodeWithType<VariableDeclarator, Type>, NodeWithSimpleName<VariableDeclarator>, Resolvable<ResolvedFieldDeclaration> {
+
+    private SimpleName name;
+
+    @OptionalProperty
+    @NonEmptyProperty
+    private Expression initializer;
+
+    private Type type;
+
+    public VariableDeclarator() {
+        this(null, new ClassOrInterfaceType(), new SimpleName(), null);
+    }
+
+    public VariableDeclarator(Type type, String variableName) {
+        this(null, type, new SimpleName(variableName), null);
+    }
+
+    public VariableDeclarator(Type type, SimpleName name) {
+        this(null, type, name, null);
+    }
+
+    public VariableDeclarator(Type type, String variableName, Expression initializer) {
+        this(null, type, new SimpleName(variableName), initializer);
+    }
+
+    /**
+     * Defines the declaration of a variable.
+     *
+     * @param name The identifier for this variable. IE. The variables name.
+     * @param initializer 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.
+     */
+    @AllFieldsConstructor
+    public VariableDeclarator(Type type, SimpleName name, Expression initializer) {
+        this(null, type, name, initializer);
+    }
+
+    /**
+     * This constructor is used by the parser and is considered private.
+     */
+    @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")
+    public VariableDeclarator(TokenRange tokenRange, Type type, SimpleName name, Expression initializer) {
+        super(tokenRange);
+        setType(type);
+        setName(name);
+        setInitializer(initializer);
+        customInitialization();
+    }
+
+    @Override
+    protected void customInitialization() {
+        // We register an observer on the type property. When it is changed the MaximumCommonType is changes as well,
+        // because it is derived from the type of the variables it contains, for this reason we notify about the change
+        register(new AstObserverAdapter() {
+
+            @Override
+            public void propertyChange(Node observedNode, ObservableProperty property, Object oldValue, Object newValue) {
+                if (property == ObservableProperty.TYPE) {
+                    VariableDeclarator vd = VariableDeclarator.this;
+                    if (vd.getParentNode().isPresent() && vd.getParentNode().get() instanceof NodeWithVariables) {
+                        NodeWithVariables nodeWithVariables = (NodeWithVariables) vd.getParentNode().get();
+                        // We calculate the value the property will assume after the change will be completed
+                        Optional<Type> currentMaxCommonType = nodeWithVariables.getMaximumCommonType();
+                        List<Type> types = new LinkedList<>();
+                        int index = nodeWithVariables.getVariables().indexOf(vd);
+                        for (int i = 0; i < nodeWithVariables.getVariables().size(); i++) {
+                            if (i == index) {
+                                types.add((Type) newValue);
+                            } else {
+                                types.add(nodeWithVariables.getVariable(i).getType());
+                            }
+                        }
+                        Optional<Type> newMaxCommonType = NodeWithVariables.calculateMaximumCommonType(types);
+                        ((Node) nodeWithVariables).notifyPropertyChange(ObservableProperty.MAXIMUM_COMMON_TYPE, currentMaxCommonType.orElse(null), newMaxCommonType.orElse(null));
+                    }
+                }
+            }
+        });
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")
+    public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {
+        return v.visit(this, arg);
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")
+    public <A> void accept(final VoidVisitor<A> v, final A arg) {
+        v.visit(this, arg);
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public Optional<Expression> getInitializer() {
+        return Optional.ofNullable(initializer);
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public SimpleName getName() {
+        return name;
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public VariableDeclarator setName(final SimpleName name) {
+        assertNotNull(name);
+        if (name == this.name) {
+            return (VariableDeclarator) this;
+        }
+        notifyPropertyChange(ObservableProperty.NAME, this.name, name);
+        if (this.name != null)
+            this.name.setParentNode(null);
+        this.name = name;
+        setAsParentNodeOf(name);
+        return this;
+    }
+
+    /**
+     * Sets the initializer expression
+     *
+     * @param initializer the initializer expression, can be null
+     * @return this, the VariableDeclarator
+     */
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public VariableDeclarator setInitializer(final Expression initializer) {
+        if (initializer == this.initializer) {
+            return (VariableDeclarator) this;
+        }
+        notifyPropertyChange(ObservableProperty.INITIALIZER, this.initializer, initializer);
+        if (this.initializer != null)
+            this.initializer.setParentNode(null);
+        this.initializer = initializer;
+        setAsParentNodeOf(initializer);
+        return this;
+    }
+
+    /**
+     * Will create a {@link NameExpr} with the initializer param
+     *
+     * @param init the initializer expression, can be null
+     * @return this, the VariableDeclarator
+     */
+    public VariableDeclarator setInitializer(String init) {
+        return setInitializer(new NameExpr(assertNonEmpty(init)));
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public Type getType() {
+        return type;
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public VariableDeclarator setType(final Type type) {
+        assertNotNull(type);
+        if (type == this.type) {
+            return (VariableDeclarator) this;
+        }
+        notifyPropertyChange(ObservableProperty.TYPE, this.type, type);
+        if (this.type != null)
+            this.type.setParentNode(null);
+        this.type = type;
+        setAsParentNodeOf(type);
+        return this;
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")
+    public boolean remove(Node node) {
+        if (node == null)
+            return false;
+        if (initializer != null) {
+            if (node == initializer) {
+                removeInitializer();
+                return true;
+            }
+        }
+        return super.remove(node);
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")
+    public VariableDeclarator removeInitializer() {
+        return setInitializer((Expression) null);
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.CloneGenerator")
+    public VariableDeclarator clone() {
+        return (VariableDeclarator) accept(new CloneVisitor(), null);
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")
+    public VariableDeclaratorMetaModel getMetaModel() {
+        return JavaParserMetaModel.variableDeclaratorMetaModel;
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator")
+    public boolean replace(Node node, Node replacementNode) {
+        if (node == null)
+            return false;
+        if (initializer != null) {
+            if (node == initializer) {
+                setInitializer((Expression) replacementNode);
+                return true;
+            }
+        }
+        if (node == name) {
+            setName((SimpleName) replacementNode);
+            return true;
+        }
+        if (node == type) {
+            setType((Type) replacementNode);
+            return true;
+        }
+        return super.replace(node, replacementNode);
+    }
+
+    @Override
+    public ResolvedFieldDeclaration resolve() {
+        return getSymbolResolver().resolveDeclaration(this, ResolvedFieldDeclaration.class);
+    }
+}