com.google.gwt.dev.jjs.impl.codesplitter

Interface LivenessPredicate

All Known Implementing Classes:

CfaLivenessPredicate, NothingAlivePredicate

public interface LivenessPredicate

A predicate on whether statements and variables should be considered live.

Any supplied predicate must satisfy load-order dependencies. For any atom considered live, the atoms it depends on at load time should also be live. The following load-order dependencies exist:

• A class literal depends on the strings contained in its instantiation instruction.
• Types depend on their supertype.
• Instance methods depend on their enclosing type.
• Static fields that are initialized to strings depend on the string they are initialized to.

Method Summary

Modifier and Type	Method and Description
boolean	isLive(JDeclaredType type) Subclasses should return true if type is deemed live and false otherwise.
boolean	isLive(JField field) Subclasses should return true if field is deemed live and false otherwise.
boolean	isLive(JMethod method) Subclasses should return true if method is deemed live and false otherwise.
boolean	miscellaneousStatementsAreLive() Whether miscellaneous statements should be considered live.

Method Detail

isLive

boolean isLive(JDeclaredType type)

Subclasses should return true if type is deemed live and false otherwise.

isLive

boolean isLive(JField field)

Subclasses should return true if field is deemed live and false otherwise.

isLive

boolean isLive(JMethod method)

Subclasses should return true if method is deemed live and false otherwise.

miscellaneousStatementsAreLive

boolean miscellaneousStatementsAreLive()

Whether miscellaneous statements should be considered live. Miscellaneous statements are any that the fragment extractor does not recognize as being in any particular category. This method should almost always return true, but does return false for NothingAlivePredicate.