Package dev.zemco.codegame.compilation.parsing

Class SupplierInstructionParser

java.lang.Object

dev.zemco.codegame.compilation.parsing.AbstractNamedParametrizedInstructionParser

dev.zemco.codegame.compilation.parsing.SupplierInstructionParser

All Implemented Interfaces:

IInstructionParser

public class SupplierInstructionParser
extends AbstractNamedParametrizedInstructionParser

Parses a named instruction without parameters by requesting it from supplier. The supplier cannot be modified after construction.

Author:

Erik Zemčík

See Also:

• Supplier

Constructor Summary

Constructors

Constructor	Description
SupplierInstructionParser(String instructionName, Supplier<IInstruction> instructionSupplier)	Creates an instance of SupplierInstructionParser that parses instructions with the given name by requesting them from the given supplier.

Method Summary

Modifier and Type	Method	Description
protected Optional<IInstruction>	parseInstructionFromParameters(String[] parameters)	Parses the named instruction by retrieving it from the supplier.

Methods inherited from class dev.zemco.codegame.compilation.parsing.AbstractNamedParametrizedInstructionParser

checkParameterFixedCount, parseInstruction

Methods inherited from class java.lang.Object

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

Constructor Details

SupplierInstructionParser

public SupplierInstructionParser(String instructionName,
 Supplier<IInstruction> instructionSupplier)

Creates an instance of SupplierInstructionParser that parses instructions with the given name by requesting them from the given supplier.

Parameters:

instructionName - name of the raw instruction

instructionSupplier - source of parsed instructions

Throws:

IllegalArgumentException - if instructionName is null or empty or if instructionSupplier is null

Method Details

parseInstructionFromParameters

protected Optional<IInstruction> parseInstructionFromParameters(String[] parameters)

Parses the named instruction by retrieving it from the supplier. The parameters argument must be empty for all supplier backed instructions.

Specified by:

parseInstructionFromParameters in class AbstractNamedParametrizedInstructionParser

Parameters:

parameters - raw instruction parameters

Returns:

instruction from the supplier

Throws:

IllegalArgumentException - if parameters are null

InstructionParseException - if length of parameters is not zero