8283846: Remove unused jdk.internal.reflect.SignatureIterator
Reviewed-by: bpb, mchung, iris
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/*
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* Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.internal.reflect;
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/** Assists in iterating down a method's signature */
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class SignatureIterator {
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private final String sig;
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private int idx;
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public SignatureIterator(String sig) {
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this.sig = sig;
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reset();
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}
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public void reset() {
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idx = 1;
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}
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public boolean atEnd() {
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return sig.charAt(idx) == ')';
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}
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public String next() {
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if (atEnd()) return null;
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char c = sig.charAt(idx);
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if (c != '[' && c != 'L') {
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++idx;
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return String.valueOf(c);
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}
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// Walk forward to end of entry
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int endIdx = idx;
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if (c == '[') {
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while ((c = sig.charAt(endIdx)) == '[') {
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endIdx++;
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}
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}
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if (c == 'L') {
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while (sig.charAt(endIdx) != ';') {
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endIdx++;
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}
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}
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int beginIdx = idx;
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idx = endIdx + 1;
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return sig.substring(beginIdx, idx);
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}
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/** Should only be called when atEnd() is true. Does not change
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state of iterator. */
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public String returnType() {
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if (!atEnd()) {
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throw new InternalError("Illegal use of SignatureIterator");
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}
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return sig.substring(idx + 1, sig.length());
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}
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}
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