1879N/A * Copyright (c) 1995, 2003, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 0N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 0N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 1472N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1472N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 0N/A * or visit www.oracle.com if you need additional information or have any 0N/A * This class is used to assemble the local variable table. 0N/A * WARNING: The contents of this source file are not part of any 0N/A * supported API. Code that depends on them does so at its own risk: 0N/A * they are subject to change or removal without notice. 0N/A * @author Arthur van Hoff 0N/A * Define a new local variable. Merge entries where possible. 0N/A for (
int i =
0 ; i <
len ; i++) {
0N/A * Trim overlapping local ranges. Java forbids shadowing of 0N/A * locals in nested scopes, but non-nested scopes may still declare 0N/A * locals with the same name. Because local variable ranges are 0N/A * computed using flow analysis as part of assembly, it isn't 0N/A * possible to simply make sure variable ranges end where the 0N/A * enclosing lexical scope ends. This method makes sure that 0N/A * variables with the same name don't overlap, giving priority to 0N/A * fields with higher slot numbers that should have appeared later 0N/A // At this point we know that both ranges are 0N/A // the same name and there is also overlap or they abut // We've detected two local variables with the // same name, and the one with the greater slot // number starts before the other. This order // reversal may happen with locals with the same // name declared in both a try body and an // associated catch clause. This is rare, and // Same situation as above; just give up. // This case can happen if there are two variables // with the same name and slot numbers, and ranges // that abut. AFAIK the only way this can occur // is with multiple static initializers. Punt. for (
int i =
0 ; i <
len ; i++) {
//System.out.println("pc=" + locals[i].from + ", len=" + (locals[i].to - locals[i].from) + ", nm=" + locals[i].field.getName() + ", slot=" + locals[i].slot);