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Java example source code file (ThrowNode.java)
The ThrowNode.java Java example source code/* * Copyright (c) 2010, 2013, 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.nashorn.internal.ir; import jdk.nashorn.internal.ir.annotations.Immutable; import jdk.nashorn.internal.ir.visitor.NodeVisitor; /** * IR representation for THROW statements. */ @Immutable public final class ThrowNode extends Statement { /** Exception expression. */ private final Expression expression; private final int flags; /** Is this block a synthethic rethrow created by finally inlining? */ public static final int IS_SYNTHETIC_RETHROW = 1; /** * Constructor * * @param lineNumber line number * @param token token * @param finish finish * @param expression expression to throw * @param flags flags */ public ThrowNode(final int lineNumber, final long token, final int finish, final Expression expression, final int flags) { super(lineNumber, token, finish); this.expression = expression; this.flags = flags; } private ThrowNode(final ThrowNode node, final Expression expression, final int flags) { super(node); this.expression = expression; this.flags = flags; } @Override public boolean isTerminal() { return true; } /** * Assist in IR navigation. * @param visitor IR navigating visitor. */ @Override public Node accept(final NodeVisitor<? extends LexicalContext> visitor) { if (visitor.enterThrowNode(this)) { return visitor.leaveThrowNode(setExpression((Expression)expression.accept(visitor))); } return this; } @Override public void toString(final StringBuilder sb) { sb.append("throw "); if (expression != null) { expression.toString(sb); } } /** * Get the expression that is being thrown by this node * @return expression */ public Expression getExpression() { return expression; } /** * Reset the expression being thrown by this node * @param expression new expression * @return new or same thrownode */ public ThrowNode setExpression(final Expression expression) { if (this.expression == expression) { return this; } return new ThrowNode(this, expression, flags); } /** * Is this a throw a synthetic rethrow in a synthetic catch-all block * created when inlining finally statements? In that case we never * wrap whatever is thrown into an ECMAException, just rethrow it. * @return true if synthetic throw node */ public boolean isSyntheticRethrow() { return (flags & IS_SYNTHETIC_RETHROW) == IS_SYNTHETIC_RETHROW; } } Other Java examples (source code examples)Here is a short list of links related to this Java ThrowNode.java source code file: |
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