Class PreFlowOperatorToken

java.lang.Object

org.ek9lang.compiler.support.PreFlowOperatorToken

All Implemented Interfaces:

Function<EK9Parser.PreFlowStatementContext, Optional<org.antlr.v4.runtime.Token>>

public final class PreFlowOperatorToken
extends Object
implements Function<EK9Parser.PreFlowStatementContext, Optional<org.antlr.v4.runtime.Token>>

THE operator token of a pre-flow (<-, :=?, := ...): what PreFlowCanSkipBody classifies, and the error location of a check on the guard itself. Empty for a null pre-flow or one that has no operator. Read by the redundant-gate checks (E08086-E08089); never re-read a pre-flow's operator from its declaration or assignment.

Constructor Summary

Constructors

Constructor	Description
PreFlowOperatorToken()

Method Summary

Modifier and Type	Method	Description
Optional<org.antlr.v4.runtime.Token>	apply(EK9Parser.PreFlowStatementContext preFlow)	The operator token of the pre-flow, if there is one.

Methods inherited from class Object

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

Methods inherited from interface Function

andThen, compose

Constructor Details

PreFlowOperatorToken

public PreFlowOperatorToken()

Method Details

apply

public Optional<org.antlr.v4.runtime.Token> apply(EK9Parser.PreFlowStatementContext preFlow)

The operator token of the pre-flow, if there is one.

Specified by:

apply in interface Function<EK9Parser.PreFlowStatementContext, Optional<org.antlr.v4.runtime.Token>>

Parameters:

preFlow - the pre-flow statement context (may be null)

Returns:

the operator token, if there is one