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 EK9 runtime + dependency classes from compiler JVM → create JAR + checksum - Subsequent builds: Reuse cached JAR if checksum valid - Multiple compiler versions: Each gets its own versioned JAR

Extracts all EK9 runtime classes plus third-party dependencies (Jackson, JSONPath, SLF4J) including inner and anonymous classes required for runtime functionality. Uses direct JAR scanning with standard Java APIs (JarFile, ClassLoader).

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