Record Class CrossThreadEdge

java.lang.Object

java.lang.Record

org.ek9lang.compiler.phase5.lockanalysis.CrossThreadEdge

Record Components:

caller - the function/method that contains the thread-spawning call. Navigation target for "where the dispatch happens."

handler - the function passed as the handler argument; runs on a different thread when the framework invokes it.

callLocation - source token of the thread-spawning call expression (e.g. the .accept(handler) call site). Used by DeadlockChain to render the StepKind.CROSS_THREAD_BOUNDARY step.

public record CrossThreadEdge(ISymbol caller, ISymbol handler, IToken callLocation)
extends Record

A synthetic call-graph edge representing thread-boundary-crossing dispatch — passing a function as the handler argument to TCP.accept, Signals.register, or as a stage in cat ... | async.

The standard CallGraph captures synchronous call relationships only: at a tcpServer.accept(handler) site, the call graph records caller → TCP.accept. The framework's subsequent invocation of handler on a different thread isn't a synchronous call and isn't captured.

Phase C.1 walks the AST and identifies these dispatch sites, recording one CrossThreadEdge per (caller, handler) pair. Phase C.2's mayEnter composition consumes both the regular call graph and these synthetic edges, classifying any path containing a cross-thread edge as CROSS_THREAD per EK9_CONCURRENCY_MODEL.md §5.2.

Constructor Summary

Constructors

Constructor	Description
CrossThreadEdge(ISymbol caller, ISymbol handler, IToken callLocation)	Creates an instance of a CrossThreadEdge record class.

Method Summary

Modifier and Type	Method	Description
ISymbol	caller()	Returns the value of the caller record component.
IToken	callLocation()	Returns the value of the callLocation record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
ISymbol	handler()	Returns the value of the handler record component.
final int	hashCode()	Returns a hash code value for this object.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

CrossThreadEdge

public CrossThreadEdge(ISymbol caller,
 ISymbol handler,
 IToken callLocation)

Creates an instance of a CrossThreadEdge record class.

Parameters:

caller - the value for the caller record component

handler - the value for the handler record component

callLocation - the value for the callLocation record component

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

caller

public ISymbol caller()

Returns the value of the caller record component.

Returns:

the value of the caller record component

handler

public ISymbol handler()

Returns the value of the handler record component.

Returns:

the value of the handler record component

callLocation

public IToken callLocation()

Returns the value of the callLocation record component.

Returns:

the value of the callLocation record component