//! Pattern lowerers for different loop constructs
//!
//! Phase 2: Extracted from control_flow.rs
//! - Pattern 1: Simple While Loop (pattern1_minimal.rs)
//! - Pattern 2: Loop with Conditional Break (pattern2_with_break.rs)
//! - Pattern 3: Loop with If-Else PHI (pattern3_with_if_phi.rs)
//! - Pattern 4: Loop with Continue (pattern4_with_continue.rs) [Phase 194+]
//!
//! Phase 194: Table-driven router for pattern dispatch
//! - Router module provides table-driven pattern matching
//! - Each pattern exports can_lower() and lower() functions
//! - See router.rs for how to add new patterns
//!
//! Phase 193: AST Feature Extraction Modularization
//! - ast_feature_extractor.rs: Pure function module for analyzing loop AST
//! - High reusability for Pattern 5-6 and pattern analysis tools
//!
//! Phase 193-4 / Phase 222.5-C: Exit Binding Builder
//! - exit_binding.rs: Fully boxified exit binding generation (orchestrator)
//! - exit_binding_validator.rs: CarrierInfo and ExitMeta validation
//! - exit_binding_constructor.rs: Exit binding construction and ValueId allocation
//! - exit_binding_applicator.rs: Boundary application logic
//! - Eliminates hardcoded variable names and ValueId assumptions
//! - Supports both single and multi-carrier loop patterns
//!
//! Phase 33-22: Common Pattern Infrastructure
//! - common_init.rs: CommonPatternInitializer for unified initialization
//! - conversion_pipeline.rs: JoinIRConversionPipeline for unified conversion flow
//!
//! Phase 171-172: Refactoring Infrastructure
//! - loop_scope_shape_builder.rs: Unified LoopScopeShape initialization (Issue 4)
//! - condition_env_builder.rs: Unified ConditionEnv construction (Issue 5)
//!
//! Phase 33-23: Pattern-Specific Analyzers (Stage 2)
//! - pattern4_carrier_analyzer.rs: Pattern 4 carrier analysis and normalization (Issue 2)
//!
//! Stage 3 + Issue 1: Trim Pattern Extraction
//! - trim_pattern_validator.rs: Trim pattern validation and whitespace check generation
//! - trim_pattern_lowerer.rs: Trim-specific JoinIR lowering
//!
//! Phase 179-B: Generic Pattern Framework
//! - pattern_pipeline.rs: Unified preprocessing pipeline for Patterns 1-4

pub(in crate::mir::builder) mod ast_feature_extractor;
pub(in crate::mir::builder) mod common_init;
pub(in crate::mir::builder) mod condition_env_builder;
pub(in crate::mir::builder) mod conversion_pipeline;
pub(in crate::mir::builder) mod exit_binding;
pub(in crate::mir::builder) mod exit_binding_validator;      // Phase 222.5-C
pub(in crate::mir::builder) mod exit_binding_constructor;    // Phase 222.5-C
pub(in crate::mir::builder) mod exit_binding_applicator;     // Phase 222.5-C
pub(in crate::mir::builder) mod loop_scope_shape_builder;
pub(in crate::mir::builder) mod pattern_pipeline;
pub(in crate::mir::builder) mod pattern1_minimal;
pub(in crate::mir::builder) mod pattern2_with_break;
pub(in crate::mir::builder) mod pattern3_with_if_phi;
pub(in crate::mir::builder) mod pattern4_carrier_analyzer;
pub(in crate::mir::builder) mod pattern4_with_continue;
pub(in crate::mir::builder) mod router;
pub(in crate::mir::builder) mod trim_loop_lowering; // Phase 180: Dedicated Trim/P5 lowering module
pub(in crate::mir::builder) mod trim_pattern_validator;
pub(in crate::mir::builder) mod trim_pattern_lowerer;

// Re-export router for convenience
pub(in crate::mir::builder) use router::{route_loop_pattern, LoopPatternContext};