Class RuntimeClassExtractor

java.lang.Object

org.ek9lang.core.RuntimeClassExtractor

public final class RuntimeClassExtractor
extends Object

Extracts EK9 runtime classes (org.ek9.lang and ek9 packages) from the running JVM and packages them into a versioned JAR file with SHA-256 checksum.

This enables per-project, versioned runtime caching: - First build: Extract ~125-130 classes from compiler JVM → create JAR + checksum - Subsequent builds: Reuse cached JAR if checksum valid - Multiple compiler versions: Each gets its own versioned JAR

Pattern follows Packager and FileHandling in core module. Uses Reflections library (same as ClassLister in java-introspection).

Constructor Summary

Constructors

Constructor	Description
RuntimeClassExtractor()

Method Summary

Modifier and Type	Method	Description
Optional<File>	extractRuntimeJar(FileHandling fileHandling, String projectDir, String version)	Extract EK9 runtime classes into a versioned JAR file.

Methods inherited from class Object

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

Constructor Details

RuntimeClassExtractor

public RuntimeClassExtractor()

Method Details

extractRuntimeJar

public Optional<File> extractRuntimeJar(FileHandling fileHandling,
 String projectDir,
 String version)

Extract EK9 runtime classes into a versioned JAR file. Creates JAR at: <projectDir>/.ek9/runtime/ek9-runtime-<version>.jar Also creates corresponding .sha256 checksum file.

Parameters:

fileHandling - FileHandling instance for JAR creation and checksums

projectDir - Project directory (source file directory)

version - Compiler version (e.g., "0.0.1-0")

Returns:

Optional containing the runtime JAR file if successful