1 files changed, 229 insertions, 0 deletions
diff --git a/javaparser-core/src/main/java/com/github/javaparser/ast/expr/MethodReferenceExpr.java b/javaparser-core/src/main/java/com/github/javaparser/ast/expr/MethodReferenceExpr.java
new file mode 100644
index 000000000..8ddaac00d
--- /dev/null
+++ b/javaparser-core/src/main/java/com/github/javaparser/ast/expr/MethodReferenceExpr.java
@@ -0,0 +1,229 @@
+/*
+ * 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.expr;
+
+import com.github.javaparser.ast.AllFieldsConstructor;
+import com.github.javaparser.ast.NodeList;
+import com.github.javaparser.ast.nodeTypes.NodeWithIdentifier;
+import com.github.javaparser.ast.nodeTypes.NodeWithTypeArguments;
+import com.github.javaparser.ast.observer.ObservableProperty;
+import com.github.javaparser.ast.type.Type;
+import com.github.javaparser.ast.visitor.GenericVisitor;
+import com.github.javaparser.ast.visitor.VoidVisitor;
+import java.util.Arrays;
+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 com.github.javaparser.ast.Node;
+import com.github.javaparser.ast.visitor.CloneVisitor;
+import com.github.javaparser.metamodel.MethodReferenceExprMetaModel;
+import com.github.javaparser.metamodel.JavaParserMetaModel;
+import com.github.javaparser.metamodel.NonEmptyProperty;
+import javax.annotation.Generated;
+import com.github.javaparser.TokenRange;
+import com.github.javaparser.metamodel.OptionalProperty;
+import java.util.function.Consumer;
+
+/**
+ * Method reference expressions introduced in Java 8 specifically designed to simplify lambda Expressions.
+ * Note that the field "identifier", indicating the word to the right of the ::, is not always a method name,
+ * it can be "new".
+ * <br/>In <code>System.out::println;</code> the scope is System.out and the identifier is "println"
+ * <br/><code>(test ? stream.map(String::trim) : stream)::toArray;</code>
+ * <br/>In <code>Bar&lt;String>::&lt;Integer>new</code> the String type argument is on the scope,
+ * and the Integer type argument is on this MethodReferenceExpr.
+ *
+ * @author Raquel Pau
+ */
+public final class MethodReferenceExpr extends Expression implements NodeWithTypeArguments<MethodReferenceExpr>, NodeWithIdentifier<MethodReferenceExpr> {
+
+    private Expression scope;
+
+    @OptionalProperty
+    private NodeList<Type> typeArguments;
+
+    @NonEmptyProperty
+    private String identifier;
+
+    public MethodReferenceExpr() {
+        this(null, new ClassExpr(), null, "empty");
+    }
+
+    @AllFieldsConstructor
+    public MethodReferenceExpr(Expression scope, NodeList<Type> typeArguments, String identifier) {
+        this(null, scope, typeArguments, identifier);
+    }
+
+    /**
+     * This constructor is used by the parser and is considered private.
+     */
+    @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")
+    public MethodReferenceExpr(TokenRange tokenRange, Expression scope, NodeList<Type> typeArguments, String identifier) {
+        super(tokenRange);
+        setScope(scope);
+        setTypeArguments(typeArguments);
+        setIdentifier(identifier);
+        customInitialization();
+    }
+
+    @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 Expression getScope() {
+        return scope;
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public MethodReferenceExpr setScope(final Expression scope) {
+        assertNotNull(scope);
+        if (scope == this.scope) {
+            return (MethodReferenceExpr) this;
+        }
+        notifyPropertyChange(ObservableProperty.SCOPE, this.scope, scope);
+        if (this.scope != null)
+            this.scope.setParentNode(null);
+        this.scope = scope;
+        setAsParentNodeOf(scope);
+        return this;
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public Optional<NodeList<Type>> getTypeArguments() {
+        return Optional.ofNullable(typeArguments);
+    }
+
+    /**
+     * Sets the typeArguments
+     *
+     * @param typeArguments the typeArguments, can be null
+     * @return this, the MethodReferenceExpr
+     */
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public MethodReferenceExpr setTypeArguments(final NodeList<Type> typeArguments) {
+        if (typeArguments == this.typeArguments) {
+            return (MethodReferenceExpr) this;
+        }
+        notifyPropertyChange(ObservableProperty.TYPE_ARGUMENTS, this.typeArguments, typeArguments);
+        if (this.typeArguments != null)
+            this.typeArguments.setParentNode(null);
+        this.typeArguments = typeArguments;
+        setAsParentNodeOf(typeArguments);
+        return this;
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public String getIdentifier() {
+        return identifier;
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")
+    public MethodReferenceExpr setIdentifier(final String identifier) {
+        assertNonEmpty(identifier);
+        if (identifier == this.identifier) {
+            return (MethodReferenceExpr) this;
+        }
+        notifyPropertyChange(ObservableProperty.IDENTIFIER, this.identifier, identifier);
+        this.identifier = identifier;
+        return this;
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")
+    public boolean remove(Node node) {
+        if (node == null)
+            return false;
+        if (typeArguments != null) {
+            for (int i = 0; i < typeArguments.size(); i++) {
+                if (typeArguments.get(i) == node) {
+                    typeArguments.remove(i);
+                    return true;
+                }
+            }
+        }
+        return super.remove(node);
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.CloneGenerator")
+    public MethodReferenceExpr clone() {
+        return (MethodReferenceExpr) accept(new CloneVisitor(), null);
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")
+    public MethodReferenceExprMetaModel getMetaModel() {
+        return JavaParserMetaModel.methodReferenceExprMetaModel;
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator")
+    public boolean replace(Node node, Node replacementNode) {
+        if (node == null)
+            return false;
+        if (node == scope) {
+            setScope((Expression) replacementNode);
+            return true;
+        }
+        if (typeArguments != null) {
+            for (int i = 0; i < typeArguments.size(); i++) {
+                if (typeArguments.get(i) == node) {
+                    typeArguments.set(i, (Type) replacementNode);
+                    return true;
+                }
+            }
+        }
+        return super.replace(node, replacementNode);
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
+    public boolean isMethodReferenceExpr() {
+        return true;
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
+    public MethodReferenceExpr asMethodReferenceExpr() {
+        return this;
+    }
+
+    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
+    public void ifMethodReferenceExpr(Consumer<MethodReferenceExpr> action) {
+        action.accept(this);
+    }
+
+    @Override
+    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")
+    public Optional<MethodReferenceExpr> toMethodReferenceExpr() {
+        return Optional.of(this);
+    }
+}