design docs for concurrency, AST, implement new concurrency features, 57 properties, 211 tests, 0 failures, 66 excluded, 1 skipped

Author: NSHkr

COSONNET.md

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+# AST Layer Architecture Overview
+
+**Version**: 1.0  
+**Date**: June 2025  
+**Layer**: AST Layer (Layer 2)  
+**Purpose**: Comprehensive architectural analysis and implementation guidance
+
+## Executive Summary
+
+The AST Layer represents the core intelligence engine of ElixirScope, transforming Elixir source code into structured, queryable data representations. This document provides a high-level architectural overview with detailed mermaid diagrams to guide implementation.
+
+## System Architecture Overview
+
+```mermaid
+graph TB
+    subgraph "External Interfaces"
+        FS[File System]
+        IDE[IDE Integration]
+        API[REST API]
+        CLI[CLI Interface]
+    end
+
+    subgraph "AST Layer (Layer 2)"
+        subgraph "Parsing Subsystem"
+            PARSER[AST Parser]
+            INSTRU[Instrumentation Mapper]
+            BATCH[Batch Processor]
+        end
+
+        subgraph "Repository Subsystem"
+            CORE_REPO[Core Repository]
+            ENH_REPO[Enhanced Repository]
+            MEM_MGR[Memory Manager]
+            CACHE[Cache Manager]
+        end
+
+        subgraph "Analysis Subsystem"
+            PATTERN[Pattern Matcher]
+            PERF_OPT[Performance Optimizer]
+            COMPLEXITY[Complexity Analyzer]
+            METRICS[Metrics Collector]
+        end
+
+        subgraph "Query Subsystem"
+            QUERY_EXE[Query Executor]
+            QUERY_CACHE[Query Cache]
+            WORKER_POOL[Worker Pool]
+        end
+
+        subgraph "Synchronization Subsystem"
+            FILE_WATCH[File Watcher]
+            SYNC[Synchronizer]
+            INCR_UPD[Incremental Updater]
+        end
+    end
+
+    subgraph "Foundation Layer (Layer 1)"
+        STORAGE[Storage Services]
+        MONITOR[Monitoring]
+        CONFIG[Configuration]
+        TELEMETRY[Telemetry]
+    end
+
+    subgraph "Data Layer"
+        ETS[(ETS Tables)]
+        DETS[(DETS Storage)]
+        MEMORY[(Memory Cache)]
+    end
+
+    %% External to AST Layer
+    FS --> FILE_WATCH
+    IDE --> API
+    CLI --> API
+    
+    %% AST Layer Internal Flow
+    FILE_WATCH --> SYNC
+    SYNC --> INCR_UPD
+    INCR_UPD --> PARSER
+    
+    PARSER --> INSTRU
+    INSTRU --> CORE_REPO
+    BATCH --> PARSER
+    
+    CORE_REPO --> ENH_REPO
+    CORE_REPO --> MEM_MGR
+    MEM_MGR --> CACHE
+    
+    ENH_REPO --> PATTERN
+    ENH_REPO --> PERF_OPT
+    PATTERN --> COMPLEXITY
+    PERF_OPT --> METRICS
+    
+    API --> QUERY_EXE
+    QUERY_EXE --> QUERY_CACHE
+    QUERY_EXE --> WORKER_POOL
+    WORKER_POOL --> ENH_REPO
+    
+    %% Foundation Layer Integration
+    CORE_REPO --> STORAGE
+    MEM_MGR --> MONITOR
+    PATTERN --> TELEMETRY
+    QUERY_EXE --> CONFIG
+    
+    %% Data Layer Integration
+    CORE_REPO --> ETS
+    ENH_REPO --> ETS
+    CACHE --> MEMORY
+    QUERY_CACHE --> DETS
+
+    style PARSER fill:#e1f5fe
+    style CORE_REPO fill:#f3e5f5
+    style PATTERN fill:#e8f5e8
+    style QUERY_EXE fill:#fff3e0
+```
+
+## Core Design Principles
+
+### 1. Performance-First Architecture
+- **O(1) Lookups**: Module and function data retrieval
+- **O(log n) Complex Queries**: Pattern matching and correlation
+- **Memory Efficiency**: Hierarchical caching with LRU eviction
+- **Concurrent Processing**: Non-blocking read operations
+
+### 2. Runtime Correlation
+- **Bidirectional Mapping**: Static analysis ↔ Dynamic events
+- **Instrumentation Points**: Strategic code insertion markers
+- **Temporal Correlation**: Time-based event association
+- **Performance Tracking**: Static predictions vs runtime metrics
+
+### 3. Incremental Processing
+- **File-Change Driven**: Only process modified files
+- **Dependency Tracking**: Cascade updates to dependent modules
+- **Atomic Updates**: Consistent state during batch operations
+- **Rollback Capability**: Error recovery with previous state
+
+## Data Flow Architecture
+
+```mermaid
+flowchart LR
+    subgraph "Input Sources"
+        SOURCE_FILES[Elixir Source Files]
+        CHANGE_EVENTS[File Change Events]
+        RUNTIME_DATA[Runtime Correlation Data]
+    end
+
+    subgraph "Processing Pipeline"
+        PARSING[Parsing Stage]
+        ENHANCEMENT[Enhancement Stage]
+        ANALYSIS[Analysis Stage]
+        STORAGE[Storage Stage]
+    end
+
+    subgraph "Data Repositories"
+        AST_STORE[AST Repository]
+        PATTERN_STORE[Pattern Repository]
+        CORRELATION_STORE[Correlation Repository]
+        CACHE_STORE[Cache Repository]
+    end
+
+    subgraph "Query Interface"
+        QUERY_API[Query API]
+        RESULT_CACHE[Result Cache]
+        WORKER_POOL[Worker Pool]
+    end
+
+    subgraph "Output Consumers"
+        IDE_CLIENT[IDE Client]
+        API_CLIENT[API Client]
+        TELEMETRY_SYS[Telemetry System]
+    end
+
+    SOURCE_FILES --> PARSING
+    CHANGE_EVENTS --> PARSING
+    RUNTIME_DATA --> CORRELATION_STORE
+
+    PARSING --> ENHANCEMENT
+    ENHANCEMENT --> ANALYSIS
+    ANALYSIS --> STORAGE
+
+    STORAGE --> AST_STORE
+    STORAGE --> PATTERN_STORE
+    ANALYSIS --> CORRELATION_STORE
+    STORAGE --> CACHE_STORE
+
+    QUERY_API --> AST_STORE
+    QUERY_API --> PATTERN_STORE
+    QUERY_API --> CORRELATION_STORE
+    QUERY_API --> RESULT_CACHE
+    QUERY_API --> WORKER_POOL
+
+    WORKER_POOL --> RESULT_CACHE
+    RESULT_CACHE --> IDE_CLIENT
+    QUERY_API --> API_CLIENT
+    CORRELATION_STORE --> TELEMETRY_SYS
+
+    style PARSING fill:#e3f2fd
+    style AST_STORE fill:#f1f8e9
+    style QUERY_API fill:#fff8e1
+```
+
+## Component Responsibilities
+
+### Parsing Subsystem
+- **Primary Responsibility**: Transform Elixir source code into enhanced AST structures
+- **Key Functions**: 
+  - Lexical and syntax analysis
+  - AST node creation and validation
+  - Instrumentation point detection
+  - Error recovery and partial parsing
+
+### Repository Subsystem
+- **Primary Responsibility**: High-performance storage and retrieval of AST data
+- **Key Functions**:
+  - ETS-based storage with concurrent access
+  - Memory management and pressure handling
+  - Cache optimization and eviction policies
+  - Data consistency and atomic operations
+
+### Analysis Subsystem
+- **Primary Responsibility**: Pattern recognition and code quality assessment
+- **Key Functions**:
+  - Pattern matching against AST structures
+  - Complexity analysis and scoring
+  - Performance optimization recommendations
+  - Anti-pattern detection
+
+### Query Subsystem
+- **Primary Responsibility**: Flexible querying interface for AST data
+- **Key Functions**:
+  - Query parsing and optimization
+  - Result caching and pagination
+  - Concurrent query execution
+  - Response formatting and serialization
+
+### Synchronization Subsystem
+- **Primary Responsibility**: Real-time file monitoring and incremental updates
+- **Key Functions**:
+  - File system event monitoring
+  - Change detection and impact analysis
+  - Incremental parsing and updates
+  - Dependency cascade management
+
+## Performance Specifications
+
+### Response Time Requirements
+- **Module Lookup**: < 1ms (99th percentile)
+- **Function Query**: < 5ms (99th percentile)
+- **Pattern Matching**: < 100ms (95th percentile)
+- **Complex Queries**: < 500ms (95th percentile)
+
+### Throughput Requirements
+- **File Processing**: 1000+ files/minute
+- **Concurrent Queries**: 100+ queries/second
+- **Memory Usage**: < 500MB for 100k LOC project
+- **Update Latency**: < 2 seconds for file changes
+
+## Integration Points
+
+### Foundation Layer Dependencies
+- **Storage Services**: Data persistence and retrieval patterns
+- **Monitoring**: Health checks and performance metrics
+- **Configuration**: Runtime configuration management
+- **Telemetry**: Event emission and correlation
+
+### External Integrations
+- **File System**: Direct file monitoring and access
+- **IDE Clients**: Language server protocol compliance
+- **API Consumers**: REST API for external tools
+- **Telemetry Systems**: Runtime correlation data ingestion
+
+## Implementation Phases
+
+### Phase 1: Core Repository (Weeks 1-3)
+Focus on fundamental data storage and retrieval capabilities.
+
+### Phase 2: Parsing & Instrumentation (Weeks 4-6)
+Implement AST parsing with instrumentation point detection.
+
+### Phase 3: Pattern Matching (Weeks 7-9)
+Build sophisticated pattern recognition capabilities.
+
+### Phase 4: Advanced Features (Weeks 10-12)
+Add performance optimization and complex query support.
+
+### Phase 5: Incremental Sync (Weeks 13-15)
+Implement real-time file monitoring and updates.
+
+## Next Steps
+
+1. **Review Repository Design**: Examine detailed repository architecture in `02_ast_repository_deep_dive.md`
+2. **Study Parsing Pipeline**: Understand parsing implementation in `03_ast_parsing_pipeline.md`
+3. **Explore Pattern Matching**: Learn pattern analysis in `04_ast_pattern_matching.md`
+4. **Understand Synchronization**: Review file monitoring in `05_ast_synchronization.md`
+5. **Examine Performance**: Study optimization strategies in `06_ast_performance_optimization.md`