Class AtnBasedGenerator

java.lang.Object

org.ek9lang.compiler.fuzz.AtnBasedGenerator

public final class AtnBasedGenerator
extends Object

ATN-based random EK9 program generator. Walks the ANTLR4 ATN (Augmented Transition Network) for the EK9 grammar, making random choices at decision points to produce syntactically plausible programs. Uses a template-based approach with ATN-generated details for high content density.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	AtnBasedGenerator.GenerationResult	Result of generating a program, including the source files, constructs, and control flow types used.
static final record	AtnBasedGenerator.NamedSource	A named source file with its filename and generated content.

Constructor Summary

Constructors

Constructor	Description
AtnBasedGenerator(int maxDepth)

Method Summary

Modifier and Type	Method	Description
AtnBasedGenerator.GenerationResult	generate(Random random)	Generate a random EK9 program with guaranteed content using template-based generation.
String	generateFromAtn(Random random)	Generate a program by pure ATN walking (lower content density but broader grammar coverage).

Methods inherited from class Object

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

Constructor Details

AtnBasedGenerator

public AtnBasedGenerator(int maxDepth)

Method Details

generate

public AtnBasedGenerator.GenerationResult generate(Random random)

Generate a random EK9 program with guaranteed content using template-based generation. Dispatches by probability: 40% single-file, 25% call-chain, 20% two-file, 15% three-file.

generateFromAtn

public String generateFromAtn(Random random)

Generate a program by pure ATN walking (lower content density but broader grammar coverage).