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/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.nashorn.internal.codegen.types;
import jdk.internal.org.objectweb.asm.MethodVisitor;
/**
* Numeric operations, not supported by all types
*/
interface BytecodeNumericOps {
/**
* Pop and negate the value on top of the stack and push the result
*
* @param method method visitor
* @param programPoint program point id
* @return result type
*/
Type neg(MethodVisitor method, int programPoint);
/**
* Pop two values on top of the stack and subtract the first from the
* second, pushing the result on the stack
*
* @param method method visitor
* @param programPoint program point id
* @return result type
*/
Type sub(MethodVisitor method, int programPoint);
/**
* Pop and multiply the two values on top of the stack and push the result
* on the stack
*
* @param method method visitor
* @param programPoint program point id
* @return result type
*/
Type mul(MethodVisitor method, int programPoint);
/**
* Pop two values on top of the stack and divide the first with the second,
* pushing the result on the stack
*
* @param method method visitor
* @param programPoint program point id
* @return result type
*/
Type div(MethodVisitor method, int programPoint);
/**
* Pop two values on top of the stack and compute the modulo of the first
* with the second, pushing the result on the stack
*
* Note that the rem method never takes a program point, because it
* can never be more optimistic than its widest operand - an int/int
* rem operation or a long/long rem operation can never return a
* winder remainder than the int or the long
*
* @param method method visitor
* @param programPoint program point id
* @return result type
*/
Type rem(MethodVisitor method, int programPoint);
/**
* Comparison with int return value, e.g. LCMP, DCMP.
*
* @param method the method visitor
* @param isCmpG is this a double style cmpg
*
* @return int return value
*/
Type cmp(MethodVisitor method, boolean isCmpG);
}
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