1579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/* 2579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Copyright (C) 2007 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.rop.code; 18579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 19579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.cst.Constant; 20579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.cst.CstString; 21579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.type.Type; 22579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.type.TypeList; 23579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 24579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/** 25579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Instruction which contains an explicit reference to a constant 26579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * and which might throw an exception. 27579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 28579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonpublic final class ThrowingCstInsn 29579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson extends CstInsn { 30579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@code non-null;} list of exceptions caught */ 31579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson private final TypeList catches; 32579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 33579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 34579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Constructs an instance. 35579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 36579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param opcode {@code non-null;} the opcode 37579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param position {@code non-null;} source position 38579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param sources {@code non-null;} specs for all the sources 39579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param catches {@code non-null;} list of exceptions caught 40579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param cst {@code non-null;} the constant 41579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 42579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public ThrowingCstInsn(Rop opcode, SourcePosition position, 43579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson RegisterSpecList sources, 44579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson TypeList catches, Constant cst) { 45579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson super(opcode, position, null, sources, cst); 46579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 47579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson if (opcode.getBranchingness() != Rop.BRANCH_THROW) { 48579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson throw new IllegalArgumentException("bogus branchingness"); 49579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 50579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 51579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson if (catches == null) { 52579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson throw new NullPointerException("catches == null"); 53579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 54579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 55579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson this.catches = catches; 56579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 57579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 58579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 59579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 60579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public String getInlineString() { 61579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson Constant cst = getConstant(); 62579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson String constantString = cst.toHuman(); 63579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson if (cst instanceof CstString) { 64579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson constantString = ((CstString) cst).toQuoted(); 65579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 66579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return constantString + " " + ThrowingInsn.toCatchString(catches); 67579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 68579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 69579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 70579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 71579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public TypeList getCatches() { 72579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return catches; 73579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 74579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 75579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 76579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 77579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public void accept(Visitor visitor) { 78579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson visitor.visitThrowingCstInsn(this); 79579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 80579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 81579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 82579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 83579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public Insn withAddedCatch(Type type) { 84579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return new ThrowingCstInsn(getOpcode(), getPosition(), 85579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson getSources(), catches.withAddedType(type), 86579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson getConstant()); 87579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 88579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 89579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 90579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 91579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public Insn withRegisterOffset(int delta) { 92579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return new ThrowingCstInsn(getOpcode(), getPosition(), 93579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson getSources().withOffset(delta), 94579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson catches, 95579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson getConstant()); 96579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 97579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 98579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 99579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 100579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public Insn withNewRegisters(RegisterSpec result, 101579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson RegisterSpecList sources) { 102579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 103579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return new ThrowingCstInsn(getOpcode(), getPosition(), 104579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson sources, 105579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson catches, 106579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson getConstant()); 107579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 108579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 109579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 110579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson} 111