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96 lines
2.7 KiB
96 lines
2.7 KiB
/*
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* BinaryOperator (c) 1998 Jochen Hoenicke
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*
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* You may distribute under the terms of the GNU General Public License.
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*
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* IN NO EVENT SHALL JOCHEN HOENICKE BE LIABLE TO ANY PARTY FOR DIRECT,
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* INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
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* THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF JOCHEN HOENICKE
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* HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* JOCHEN HOENICKE SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
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* BASIS, AND JOCHEN HOENICKE HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
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* SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* $Id$
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*/
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package jode;
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import sun.tools.java.Type;
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public class BinaryOperator extends Operator {
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protected Type operandType;
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public BinaryOperator(Type type, int op) {
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super(type, op);
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operandType = type;
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}
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public int getOperandCount() {
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return 2;
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}
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public int getPriority() {
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switch (operator) {
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case 1: case 2:
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return 610;
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case 3: case 4: case 5:
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return 650;
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case 6: case 7: case 8:
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return 600;
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case 9:
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return 450;
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case 10:
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return 410;
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case 11:
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return 420;
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case 12: case 13: case 14: case 15: case 16: case 17:
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case 18: case 19: case 20: case 21: case 22: case 23:
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return 100;
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case LOG_OR_OP:
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return 310;
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case LOG_AND_OP:
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return 350;
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}
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throw new RuntimeException("Illegal operator");
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}
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public int getOperandPriority(int i) {
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return getPriority() + i;
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}
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public Type getOperandType(int i) {
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return operandType;
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}
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public void setOperandType(Type[] inputTypes) {
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operandType = MyType.intersection
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(operandType, MyType.intersection(inputTypes[0],
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inputTypes[1]));
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type = operandType;
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}
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/**
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* Sets the return type of this operator.
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* @return true if the operand types changed
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*/
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public boolean setType(Type newType) {
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operandType = MyType.intersection(operandType, newType);
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if (type != operandType) {
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type = operandType;
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return true;
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}
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return false;
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}
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public boolean equals(Object o) {
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return (o instanceof BinaryOperator) &&
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((BinaryOperator)o).operator == operator;
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}
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public String toString(String[] operands) {
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return operands[0] + getOperatorString() + operands[1];
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}
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}
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