| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.dx.rop.code; |
| |
| import com.android.dx.rop.cst.Constant; |
| import com.android.dx.rop.cst.CstString; |
| import com.android.dx.rop.type.Type; |
| import com.android.dx.rop.type.TypeList; |
| |
| /** |
| * Instruction which contains an explicit reference to a constant |
| * and which might throw an exception. |
| */ |
| public final class ThrowingCstInsn |
| extends CstInsn { |
| /** {@code non-null;} list of exceptions caught */ |
| private final TypeList catches; |
| |
| /** |
| * Constructs an instance. |
| * |
| * @param opcode {@code non-null;} the opcode |
| * @param position {@code non-null;} source position |
| * @param sources {@code non-null;} specs for all the sources |
| * @param catches {@code non-null;} list of exceptions caught |
| * @param cst {@code non-null;} the constant |
| */ |
| public ThrowingCstInsn(Rop opcode, SourcePosition position, |
| RegisterSpecList sources, |
| TypeList catches, Constant cst) { |
| super(opcode, position, null, sources, cst); |
| |
| if (opcode.getBranchingness() != Rop.BRANCH_THROW) { |
| throw new IllegalArgumentException("bogus branchingness"); |
| } |
| |
| if (catches == null) { |
| throw new NullPointerException("catches == null"); |
| } |
| |
| this.catches = catches; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public String getInlineString() { |
| Constant cst = getConstant(); |
| String constantString = cst.toHuman(); |
| if (cst instanceof CstString) { |
| constantString = ((CstString) cst).toQuoted(); |
| } |
| return constantString + " " + ThrowingInsn.toCatchString(catches); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public TypeList getCatches() { |
| return catches; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void accept(Visitor visitor) { |
| visitor.visitThrowingCstInsn(this); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Insn withAddedCatch(Type type) { |
| return new ThrowingCstInsn(getOpcode(), getPosition(), |
| getSources(), catches.withAddedType(type), |
| getConstant()); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Insn withRegisterOffset(int delta) { |
| return new ThrowingCstInsn(getOpcode(), getPosition(), |
| getSources().withOffset(delta), |
| catches, |
| getConstant()); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public Insn withNewRegisters(RegisterSpec result, |
| RegisterSpecList sources) { |
| |
| return new ThrowingCstInsn(getOpcode(), getPosition(), |
| sources, |
| catches, |
| getConstant()); |
| } |
| |
| |
| } |