13c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein/* 23c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Copyright (C) 2011 The Android Open Source Project 33c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * 43c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Licensed under the Apache License, Version 2.0 (the "License"); 53c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * you may not use this file except in compliance with the License. 63c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * You may obtain a copy of the License at 73c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * 83c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * http://www.apache.org/licenses/LICENSE-2.0 93c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * 103c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Unless required by applicable law or agreed to in writing, software 113c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * distributed under the License is distributed on an "AS IS" BASIS, 123c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * See the License for the specific language governing permissions and 143c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * limitations under the License. 153c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 163c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 17537939ca06a47668f719ee06159303bcd3175c69Dan Bornsteinpackage com.android.dx.io.instructions; 183c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 1919cefdcde26ea31d06cef031032b2ef78013d976Dan Bornsteinimport java.io.EOFException; 2019cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein 213c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein/** 223c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein * Input stream of code units, for reading in Dalvik bytecode. 233c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 24d63837a6a16a19e3ae943cdfad52b6f6c8d04a22Dan Bornsteinpublic interface CodeInput extends CodeCursor { 2532dd826ad1742993cf0627448cd083a5021d71bbDan Bornstein /** 2638b861bc63b91114d52ba01e74d31fbf316a5784Dan Bornstein * Returns whether there are any more code units to read. This 2738b861bc63b91114d52ba01e74d31fbf316a5784Dan Bornstein * is analogous to {@code hasNext()} on an interator. 2838b861bc63b91114d52ba01e74d31fbf316a5784Dan Bornstein */ 2938b861bc63b91114d52ba01e74d31fbf316a5784Dan Bornstein public boolean hasMore(); 3038b861bc63b91114d52ba01e74d31fbf316a5784Dan Bornstein 3138b861bc63b91114d52ba01e74d31fbf316a5784Dan Bornstein /** 3219cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein * Reads a code unit. 333c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 3419cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein public int read() throws EOFException; 353c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 363c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 3719cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein * Reads two code units, treating them as a little-endian {@code int}. 383c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 3919cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein public int readInt() throws EOFException; 403c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein 413c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein /** 4219cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein * Reads four code units, treating them as a little-endian {@code long}. 433c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein */ 4419cefdcde26ea31d06cef031032b2ef78013d976Dan Bornstein public long readLong() throws EOFException; 453c5df37a2df7368eb274eb097e9cfa2ccc7fffb6Dan Bornstein} 46