Package com.tonic.analysis.source.recovery

Class EnumSwitchMapRegistry

java.lang.Object

com.tonic.analysis.source.recovery.EnumSwitchMapRegistry

public class EnumSwitchMapRegistry
extends Object

Process-wide store of recovered javac $SwitchMap$ tables, keyed by holder class and enum so two classes switching on the same enum keep separate numberings.

Constructor Summary

Constructors

Constructor	Description
EnumSwitchMapRegistry()

Method Summary

Modifier and Type	Method	Description
void	clear()	Drops every registered mapping.
static EnumSwitchMapRegistry	getInstance()
boolean	hasMapping(String holderClass, String enumClassName)
String	lookupEnumConstant(String holderClass, String enumClassName, int caseValue)	Resolves a switch case value back to its enum constant name.
static String	parseEnumClassFromFieldName(String fieldName)	Recovers the enum's internal name from a $SwitchMap$ field name, treating a segment that starts with an upper-case letter as a nested class rather than a package part.
void	registerMapping(String holderClass, String enumClassName, int caseValue, String enumConstant)	Registers one caseValue -> enumConstant entry of a switch map.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumSwitchMapRegistry

public EnumSwitchMapRegistry()

Method Detail

getInstance

public static EnumSwitchMapRegistry getInstance()

Returns:

the instance

registerMapping

public void registerMapping(String holderClass,
                            String enumClassName,
                            int caseValue,
                            String enumConstant)

Registers one caseValue -> enumConstant entry of a switch map.

Parameters:

holderClass - the class declaring the $SwitchMap$ field

enumClassName - the enum being switched on

caseValue - the dense case value javac assigned

enumConstant - the enum constant that value stands for

lookupEnumConstant

public String lookupEnumConstant(String holderClass,
                                 String enumClassName,
                                 int caseValue)

Resolves a switch case value back to its enum constant name.

Parameters:

holderClass - the class declaring the $SwitchMap$ field

enumClassName - the enum being switched on

caseValue - the dense case value

Returns:

the constant name, or null if nothing was registered for it

hasMapping

public boolean hasMapping(String holderClass,
                          String enumClassName)

Parameters:

holderClass - the class declaring the $SwitchMap$ field

enumClassName - the enum being switched on

Returns:

true if any entry has been registered for the pair

clear

public void clear()

Drops every registered mapping.

parseEnumClassFromFieldName

public static String parseEnumClassFromFieldName(String fieldName)

Recovers the enum's internal name from a $SwitchMap$ field name, treating a segment that starts with an upper-case letter as a nested class rather than a package part.

Parameters:

fieldName - the synthetic field name

Returns:

the enum's internal name, or null if the name is not a $SwitchMap$ field