Refactoring In The Loop

Reference

Every refactoring, smell, and pattern in the catalog, grouped by its source book. 66 refactorings · 24 smells · 27 Kerievsky refactorings · 23 GoF design patterns.

Cross-book bridges

Each Kerievsky refactoring journey that lands on a Gang of Four design pattern.

Encapsulate Classes With Factory
Factory Method
Encapsulate Composite With Builder
Builder
Extract Adapter
Adapter
Extract Composite
Composite
Form Template Method
Template Method
Introduce Polymorphic Creation With Factory Method
Factory Method
Limit Instantiation With Singleton
Singleton
Move Accumulation To Visitor
Visitor
Move Creation Knowledge To Factory
Factory Method
Move Embellishment To Decorator
Decorator
Replace Conditional Dispatcher With Command
Command
Replace Conditional Logic with Strategy
Strategy
Replace Hard-Coded Notifications With Observer
Observer
Replace Implicit Language With Interpreter
Interpreter
Replace Implicit Tree With Composite
Composite
Replace One/Many Distinctions With Composite
Composite
Replace State-Altering Conditionals with State
State
Unify Interfaces With Adapter
Adapter

Patterns without a destination

Kerievsky entries with no GoF destination linked. These are content gaps.

Chain Constructors
Compose Method
Extract Parameter
Inline Singleton
Introduce Null Object
Move Accumulation To Collecting Parameter
Replace Constructors With Creation Methods
Replace Type Code With Class
Unify Interfaces

Sparsest cross-references

Entries with the fewest inbound + outbound connections — the next places to enrich.

Inline Variable

1 outbound · 0 inbound

Consolidate Conditional Expression

1 outbound · 0 inbound

Move Statements into Function

1 outbound · 0 inbound

Move Statements to Callers

1 outbound · 0 inbound

Replace Inline Code with Function Call

1 outbound · 0 inbound

Most-connected entries

Hubs of the catalog by total inbound + outbound connections.

Mutable Data

10 outbound · 14 inbound

Long Function

9 outbound · 14 inbound

Duplicated Code

3 outbound · 19 inbound

Extract Class

4 outbound · 16 inbound

Primitive Obsession

5 outbound · 14 inbound

Move Function

4 outbound · 15 inbound

Repeated Switches

1 outbound · 16 inbound

Insider Trading

5 outbound · 12 inbound

Replace Conditional with Polymorphism

2 outbound · 15 inbound

Shotgun Surgery

7 outbound · 9 inbound