com.alibaba.qlexpress4.runtime.instruction

Class QLInstruction

java.lang.Object

com.alibaba.qlexpress4.runtime.instruction.QLInstruction

Direct Known Subclasses:

BreakContinueInstruction, CallConstInstruction, CallFunctionInstruction, CallInstruction, CastInstruction, CheckTimeOutInstruction, CloseScopeInstruction, ConstInstruction, DefineFunctionInstruction, DefineLocalInstruction, ForEachInstruction, ForInstruction, GetFieldInstruction, GetMethodInstruction, IndexInstruction, JumpIfInstruction, JumpIfPopInstruction, JumpInstruction, LoadInstruction, LoadLambdaInstruction, MethodInvokeInstruction, MultiNewArrayInstruction, NewArrayInstruction, NewFilledInstanceInstruction, NewInstanceInstruction, NewListInstruction, NewMapInstruction, NewScopeInstruction, OperatorInstruction, PopInstruction, ReturnInstruction, SliceInstruction, SpreadGetFieldInstruction, SpreadMethodInvokeInstruction, StringJoinInstruction, ThrowInstruction, TraceEvaludatedInstruction, TracePeekInstruction, TryCatchInstruction, UnaryInstruction, WhileInstruction

public abstract class QLInstruction
extends java.lang.Object

Instruction Specification: Operation: What does it do? Input: How many stack element it consumes? and their means Output: How many stack element it push back? and their means

Author: DQinYuan

Field Summary

Fields

Modifier and Type	Field and Description
protected ErrorReporter	errorReporter

Constructor Summary

Constructors

Constructor and Description
QLInstruction(ErrorReporter errorReporter)

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

errorReporter

protected final ErrorReporter errorReporter

Constructor Detail

QLInstruction

public QLInstruction(ErrorReporter errorReporter)

Method Detail

execute

public abstract QResult execute(QContext qContext,
                                QLOptions qlOptions)

stackInput

public abstract int stackInput()

Returns:

input size

stackOutput

public abstract int stackOutput()

Returns:

output size

println

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

getErrorReporter

public ErrorReporter getErrorReporter()