1579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/* 2579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Copyright (C) 2011 The Android Open Source Project 3579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 4579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Licensed under the Apache License, Version 2.0 (the "License"); 5579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * you may not use this file except in compliance with the License. 6579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * You may obtain a copy of the License at 7579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 8579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 9579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 10579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Unless required by applicable law or agreed to in writing, software 11579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 12579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * See the License for the specific language governing permissions and 14579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * limitations under the License. 15579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 16579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 17579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonpackage com.android.dx.io.instructions; 18579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 19579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport java.io.EOFException; 20579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 21579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/** 22579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Input stream of code units, for reading in Dalvik bytecode. 23579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 24579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonpublic interface CodeInput extends CodeCursor { 25579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 26579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Returns whether there are any more code units to read. This 27579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * is analogous to {@code hasNext()} on an interator. 28579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 29579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public boolean hasMore(); 30579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 31579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 32579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Reads a code unit. 33579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 34579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public int read() throws EOFException; 35579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 36579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 37579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Reads two code units, treating them as a little-endian {@code int}. 38579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 39579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public int readInt() throws EOFException; 40579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 41579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 42579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Reads four code units, treating them as a little-endian {@code long}. 43579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 44579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public long readLong() throws EOFException; 45579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson} 46