org.snapscript.dx.rop.code.PlainCstInsn Maven / Gradle / Ivy
/*
* 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 org.snapscript.dx.rop.code;
import org.snapscript.dx.rop.cst.Constant;
import org.snapscript.dx.rop.type.StdTypeList;
import org.snapscript.dx.rop.type.Type;
import org.snapscript.dx.rop.type.TypeList;
/**
* Instruction which contains an explicit reference to a constant
* but which cannot throw an exception.
*/
public final class PlainCstInsn
extends CstInsn {
/**
* Constructs an instance.
*
* @param opcode {@code non-null;} the opcode
* @param position {@code non-null;} source position
* @param result {@code null-ok;} spec for the result, if any
* @param sources {@code non-null;} specs for all the sources
* @param cst {@code non-null;} the constant
*/
public PlainCstInsn(Rop opcode, SourcePosition position,
RegisterSpec result, RegisterSpecList sources,
Constant cst) {
super(opcode, position, result, sources, cst);
if (opcode.getBranchingness() != Rop.BRANCH_NONE) {
throw new IllegalArgumentException("bogus branchingness");
}
}
/** {@inheritDoc} */
@Override
public TypeList getCatches() {
return StdTypeList.EMPTY;
}
/** {@inheritDoc} */
@Override
public void accept(Visitor visitor) {
visitor.visitPlainCstInsn(this);
}
/** {@inheritDoc} */
@Override
public Insn withAddedCatch(Type type) {
throw new UnsupportedOperationException("unsupported");
}
/** {@inheritDoc} */
@Override
public Insn withRegisterOffset(int delta) {
return new PlainCstInsn(getOpcode(), getPosition(),
getResult().withOffset(delta),
getSources().withOffset(delta),
getConstant());
}
/** {@inheritDoc} */
@Override
public Insn withNewRegisters(RegisterSpec result,
RegisterSpecList sources) {
return new PlainCstInsn(getOpcode(), getPosition(),
result,
sources,
getConstant());
}
}