com.alibaba.qlexpress4.runtime.instruction

Class UnaryInstruction

java.lang.Object

com.alibaba.qlexpress4.runtime.instruction.QLInstruction

com.alibaba.qlexpress4.runtime.instruction.UnaryInstruction

public class UnaryInstruction
extends QLInstruction

Operation: do unary operator like, ++,--,!,~ Input: 1 Output: 1, unary result Author: DQinYuan

Field Summary

Fields inherited from class com.alibaba.qlexpress4.runtime.instruction.QLInstruction

errorReporter

Constructor Summary

Constructors

Constructor and Description
UnaryInstruction(ErrorReporter errorReporter, UnaryOperator unaryOperator, java.lang.Integer traceKey)

Method Summary

Modifier and Type	Method and Description
QResult	execute(QContext qContext, QLOptions qlOptions)
void	println(int index, int depth, java.util.function.Consumer<java.lang.String> debug)
int	stackInput()
int	stackOutput()

Methods inherited from class com.alibaba.qlexpress4.runtime.instruction.QLInstruction

getErrorReporter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UnaryInstruction

public UnaryInstruction(ErrorReporter errorReporter,
                        UnaryOperator unaryOperator,
                        java.lang.Integer traceKey)

Method Detail

execute

public QResult execute(QContext qContext,
                       QLOptions qlOptions)

Specified by:

execute in class QLInstruction

stackInput

public int stackInput()

Specified by:

stackInput in class QLInstruction

Returns:

input size

stackOutput

public int stackOutput()

Specified by:

stackOutput in class QLInstruction

Returns:

output size

println

public void println(int index,
                    int depth,
                    java.util.function.Consumer<java.lang.String> debug)

Specified by:

println in class QLInstruction