org.panda_lang.framework.design.interpreter.parser.expression

Interface ExpressionSubparserWorker

public interface ExpressionSubparserWorker

Subparser worker, created during the parse process

Method Summary

Modifier and Type	Method and Description
ExpressionSubparser	getSubparser() Get parent subparser
@Nullable ExpressionResult	next(ExpressionContext context, TokenInfo token) Handle a next token.

Method Detail

next

@Nullable
@Nullable ExpressionResult next(ExpressionContext context,
                                           TokenInfo token)

Handle a next token. Possible results:

• null if current worker does not match the source
• empty result if worker matches the source, but still needs more data
• result if worker matched source
• error if worker matched source, but something happen

Parameters:

context - the current context

token - the token to handle

Returns:

the result of worker

getSubparser

ExpressionSubparser getSubparser()

Get parent subparser

Returns:

the subparser