Class SwitchCaseOrChainGenerator

java.lang.Object

org.ek9lang.compiler.phase7.generator.AbstractGenerator

org.ek9lang.compiler.phase7.generator.SwitchCaseOrChainGenerator

public final class SwitchCaseOrChainGenerator
extends AbstractGenerator

Generates short-circuit OR chains for multiple switch case expressions.

Example: case 'D', 'A', 'Z' generates: text._eq('D') OR (text._eq('A') OR text._eq('Z'))

Uses LOGICAL_OR_BLOCK for efficient short-circuit evaluation: - If first comparison is TRUE → return immediately (skip remaining) - If FALSE → evaluate next comparison (recursively)

Backend Benefits: - JVM: Generates IFNE jumps for early exit - LLVM: Generates conditional branches with proper PHI nodes

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	SwitchCaseOrChainGenerator.ComparisonResult	Result of comparison generation.

Field Summary

Fields inherited from class AbstractGenerator

debugInfoCreator, instructionBuilder, stackContext

Constructor Summary

Constructors

Constructor	Description
SwitchCaseOrChainGenerator(IRGenerationContext stackContext, VariableMemoryManagement variableMemoryManagement, GeneratorSet generators)

Method Summary

Modifier and Type	Method	Description
SwitchCaseOrChainGenerator.ComparisonResult	generateOrChain(List<EK9Parser.CaseExpressionContext> caseExpressions, SwitchStatementGenerator.EvalVariable evalVariable, String conditionScopeId)	Generate OR chain for multiple case expressions with short-circuit evaluation.

Methods inherited from class AbstractGenerator

createTempVariable, createTempVariableFromContext, extractReturnType, getRecordedSymbolOrException

Methods inherited from class Object

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

Constructor Details

SwitchCaseOrChainGenerator

public SwitchCaseOrChainGenerator(IRGenerationContext stackContext,
 VariableMemoryManagement variableMemoryManagement,
 GeneratorSet generators)

Method Details

generateOrChain

public SwitchCaseOrChainGenerator.ComparisonResult generateOrChain(List<EK9Parser.CaseExpressionContext> caseExpressions,
 SwitchStatementGenerator.EvalVariable evalVariable,
 String conditionScopeId)

Generate OR chain for multiple case expressions with short-circuit evaluation.

Parameters:

caseExpressions - List of case expression contexts

evalVariable - The switch evaluation variable details

conditionScopeId - Scope for condition evaluation

Returns:

ComparisonResult with final result variable, instructions, and primitive condition