Class DirectionCheckBuilder

java.lang.Object

org.ek9lang.compiler.phase7.support.DirectionCheckBuilder

All Implemented Interfaces:

Function<DirectionCheckParams, ConditionEvaluationResult>

public final class DirectionCheckBuilder
extends Object
implements Function<DirectionCheckParams, ConditionEvaluationResult>

CONCERN: Direction check evaluation for polymorphic for-range loops. RESPONSIBILITY: Build direction check IR (direction < 0 or direction > 0). REUSABILITY: FOR_RANGE_POLYMORPHIC ascending/descending case generation.

Domain-specific helper that eliminates the symmetric duplication between: - generateDirectionLessThanZero (direction < 0) - generateDirectionGreaterThanZero (direction > 0)

The only difference between these methods was the comparison operator ("<" vs ">"). This helper makes that difference explicit via DirectionCheckParams.

Pattern: 1. Load literal 0 2. Call direction < 0 (or > 0) 3. Extract primitive boolean result All wrapped in proper scope management and memory management.

Constructor Summary

Constructors

Constructor	Description
DirectionCheckBuilder(ScopedInstructionExecutor scopedInstructionExecutor, ManagedLiteralLoader managedLiteralLoader, ComparisonEvaluator comparisonEvaluator)

Method Summary

Modifier and Type	Method	Description
ConditionEvaluationResult	apply(DirectionCheckParams params)	Build direction check IR with scoped execution.

Methods inherited from class Object

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

Methods inherited from interface Function

andThen, compose

Constructor Details

DirectionCheckBuilder

public DirectionCheckBuilder(ScopedInstructionExecutor scopedInstructionExecutor,
 ManagedLiteralLoader managedLiteralLoader,
 ComparisonEvaluator comparisonEvaluator)

Method Details

apply

public ConditionEvaluationResult apply(DirectionCheckParams params)

Build direction check IR with scoped execution.

Handles: 1. Scope enter/exit for all temporary variables 2. Load literal 0 with memory management 3. Compare direction < 0 (or > 0) with memory management 4. Extract primitive boolean for branching

Specified by:

apply in interface Function<DirectionCheckParams, ConditionEvaluationResult>

Parameters:

params - Direction check parameters

Returns:

Result containing instructions and primitive boolean variable name