Enum Class EdgeKind

java.lang.Object

java.lang.Enum<EdgeKind>

org.ek9lang.compiler.phase5.lockanalysis.EdgeKind

All Implemented Interfaces:

Serializable, Comparable<EdgeKind>, Constable

public enum EdgeKind
extends Enum<EdgeKind>

Classifies a call-graph edge by its threading semantics, per EK9_CONCURRENCY_MODEL.md §5.2.

Edge composition is monotonic: SAME_THREAD ∘ SAME_THREAD = SAME_THREAD; any composition involving a CROSS_THREAD edge is CROSS_THREAD. Once a path crosses a thread boundary it stays crossed for the rest of the chain.

Nested Class Summary

Nested classes/interfaces inherited from class Enum

Enum.EnumDesc<E>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CROSS_THREAD	Call that crosses a thread boundary.
SAME_THREAD	Synchronous call.

Method Summary

Modifier and Type	Method	Description
EdgeKind	composeWith(EdgeKind next)	Compose this edge kind with another along a call path.
static EdgeKind	valueOf(String name)	Returns the enum constant of this class with the specified name.
static EdgeKind[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

SAME_THREAD

public static final EdgeKind SAME_THREAD

Synchronous call. Caller and callee run on the same virtual thread; the callee's stack frame sits above the caller's; MutexLock reentrancy applies.

CROSS_THREAD

public static final EdgeKind CROSS_THREAD

Call that crosses a thread boundary. Sources are the concurrent-entry-point primitives in ek9-lang: TCP.accept, Signals.register, cat ... | async, UDP stream consumption, and HTTP service operations.

Method Details

values

public static EdgeKind[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static EdgeKind valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

composeWith

public EdgeKind composeWith(EdgeKind next)

Compose this edge kind with another along a call path.

Parameters:

next - the next edge kind in the path

Returns:

SAME_THREAD only when both are SAME_THREAD, else CROSS_THREAD