/* * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.jshell; import jdk.jshell.Key.ExpressionKey; /** * Snippet for an assignment or variable-value expression. * The Kind is {@link jdk.jshell.Snippet.Kind#EXPRESSION}. *
* ExpressionSnippet
is immutable: an access to
* any of its methods will always return the same result.
* and thus is thread-safe.
*
* @since 9
* @jls 15 Expressions
*/
public class ExpressionSnippet extends Snippet {
ExpressionSnippet(ExpressionKey key, String userSource, Wrap guts, String name, SubKind subkind) {
super(key, userSource, guts, name, subkind, null);
}
/**
* Variable name which is the value of the expression. Since the expression
* is either just a variable identifier or it is an assignment
* to a variable, there is always a variable which is the subject of the
* expression. All other forms of expression become temporary variables
* which are instead referenced by a {@link VarSnippet}.
* @return the name of the variable which is the subject of the expression.
*/
@Override
public String name() {
return key().name();
}
/**
* Type of the expression
* @return String representation of the type of the expression.
*/
public String typeName() {
return key().typeName();
}
/**** internal access ****/
@Override
ExpressionKey key() {
return (ExpressionKey) super.key();
}
}