/* * Copyright (c) 1994, 2003, 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 sun.tools.tree;import sun.tools.java.*;/** * WARNING: The contents of this source file are not part of any * supported API. Code that depends on them does so at its own risk: * they are subject to change or removal without notice. */publicclass BinaryShiftExpression extends BinaryExpression { /** * constructor */ public BinaryShiftExpression(int op, long where, Expression left, Expression right) { super(op, where, left.type, left, right); } /** * Evaluate the expression */ Expression eval() { // The eval code in BinaryExpression.java only works correctly // for arithmetic expressions. For shift expressions, we get cases // where the left and right operand may legitimately be of mixed // types (long and int). This is a fix for 4082814. if (left.op == LONGVAL && right.op == INTVAL) { return eval(((LongExpression)left).value, ((IntExpression)right).value); } // Delegate the rest of the cases to our parent, so as to minimize // impact on existing behavior. return super.eval(); } /** * Select the type */ void selectType(Environment env, Context ctx, int tm) { if (left.type == Type.tLong) { type = Type.tLong; } else if (left.type.inMask(TM_INTEGER)) { type = Type.tInt; left = convert(env, ctx, type, left); } else { type = Type.tError; } if (right.type.inMask(TM_INTEGER)) { right = new ConvertExpression(where, Type.tInt, right); } else { right = convert(env, ctx, Type.tInt, right); } }}
/*
* Copyright (c) 1994, 2003, 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 sun.tools.tree;
import sun.tools.java.*;
/**
* WARNING: The contents of this source file are not part of any
* supported API. Code that depends on them does so at its own risk:
* they are subject to change or removal without notice.
*/
public
class BinaryShiftExpression extends BinaryExpression {
/**
* constructor
*/
public BinaryShiftExpression(int op, long where, Expression left, Expression right) {
super(op, where, left.type, left, right);
}
/**
* Evaluate the expression
*/
Expression eval() {
// The eval code in BinaryExpression.java only works correctly
// for arithmetic expressions. For shift expressions, we get cases
// where the left and right operand may legitimately be of mixed
// types (long and int). This is a fix for 4082814.
if (left.op == LONGVAL && right.op == INTVAL) {
return eval(((LongExpression)left).value,
((IntExpression)right).value);
}
// Delegate the rest of the cases to our parent, so as to minimize
// impact on existing behavior.
return super.eval();
}
/**
* Select the type
*/
void selectType(Environment env, Context ctx, int tm) {
if (left.type == Type.tLong) {
type = Type.tLong;
} else if (left.type.inMask(TM_INTEGER)) {
type = Type.tInt;
left = convert(env, ctx, type, left);
} else {
type = Type.tError;
}
if (right.type.inMask(TM_INTEGER)) {
right = new ConvertExpression(where, Type.tInt, right);
} else {
right = convert(env, ctx, Type.tInt, right);
}
}
}