Ruby Roadmap - simpleprog

simpleprog

Foundations

▸ Open Classes & Monkey Patching

▸ method_missing & respond_to_missing?

▸ define_method & Dynamic Definition

Core Concepts

▸ Class Evaluation (class_eval, instance_eval)

▸ Constant Lookup & Const_missing

▸ Hook Methods (inherited, included, extended)

Intermediate Skills

▸ DSL Building with instance_eval & block context

▸ Binding & eval Context Manipulation

▸ Block, Proc, Lambda Differences

Advanced Topics

▸ Closures & Binding Capture

▸ Symbol#to_proc & & Operator

▸ Block Scope & Local Variables

Expert Level

▸ Currying with Procs

▸ Enumerable with Blocks

▸ Block-Local Variables (Block Arguments)

Mastery

▸ Module Include vs Prepend vs Extend

▸ Module nesting & self

▸ Method Resolution Order (MRO)

Ecosystem

▸ Concern Pattern (ActiveSupport)

▸ Namespace as Module

▸ Module#ancestors & Lookup Path

Architecture

▸ Autoloading with Zeitwerk

▸ Refinement Scope & Activation

▸ Refine vs Monkey Patch

Optimization

▸ Refinement Inheritance

▸ using Method & Scope Control

▸ Refining Core Classes Safely

Deployment

▸ Refinement & method_missing

▸ Refinement Limitations

▸ GC Generations (RGenGC)

Phase 11

▸ Mark & Sweep Phases

▸ Write Barriers

▸ ObjectSpace & T_MASK

Phase 12

▸ Memory Leak Detection (objspace)

▸ GC Tuning Parameters

▸ Reference Counted Objects (T_DATA, T_FILE)

Phase 13

▸ Thread Basics & GVL

▸ Mutex & ConditionVariable

▸ Fiber & Cooperative Scheduling

Phase 14

▸ Ractor (Ruby 3.0+)

▸ Ractor Message Passing (send, receive)

▸ Shareable vs Unshareable Values

Phase 15

▸ Concurrent Ruby (ThreadPool, Future)

▸ Ruby C API (VALUE, rb_define_method)

▸ Creating Extension with extconf.rb

Phase 16

▸ Memory Management in C (GC guards)

▸ Exception Handling in C Extensions

▸ Ruby Data Types & TypedData

Phase 17

▸ Inline C with Rice

▸ FFI with fiddle

▸ RSpec DSL (describe, context, it)

Phase 18

▸ RSpec Mocks (allow, expect, receive)

▸ Minitest Spec & Assert

▸ Factory Bot & Fixtures

Phase 19

▸ Capybara Integration

▸ VCR for HTTP Record/Replay

▸ Property Testing (rantly)

Phase 20

▸ DSL via instance_eval

▸ DSL via block-passing & yield

▸ Rake & Thor DSL

Phase 21

▸ Config DSL Pattern

▸ Builder DSL with method_missing

▸ Matcher DSL (RSpec)

Phase 22

▸ Internal vs External DSLs

▸ Profiling with stackprof & ruby-prof

▸ JIT Compilation (YJIT, MJIT)

Phase 23

▸ Allocation Profiling

▸ GC Tuning for Throughput

▸ C Extension Hot Paths

Phase 24

▸ Memory Instrumentation

▸ Fiber vs Thread Performance

▸ Case Pattern Matching (Ruby 3.0)

Phase 25

▸ Array Pattern (in [a, *rest])

▸ Hash Pattern (in {key: value})

▸ Find Pattern (in [*, pattern, *])

Phase 26

▸ Value & Variable Patterns

▸ Pattern Matching Guards (if)

▸ Deconstruct & Deconstruct Keys

Phase 27

▸ taint & Trust Levels

▸ $SAFE Levels (deprecated)

▸ Command Injection Prevention

Phase 28

▸ SQL Injection Prevention (Sanitize)

▸ Rails Security (CSRF, XSS, Session)

▸ Brakeman Static Analysis

Phase 29

▸ Serialization & YAML.load Risks

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