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Smalltalk Best Practice Patterns

By Kent Beck

Published by Prentice Hall

Published Date: Oct 3, 1996

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This classic book is the definitive real-world style guide for better Smalltalk programming. This author presents a set of patterns that organize all the informal experience successful Smalltalk programmers have learned the hard way. When programmers understand these patterns, they can write much more effective code. The concept of Smalltalk patterns is introduced, and the book explains why they work. Next, the book introduces proven patterns for working with methods, messages, state, collections, classes and formatting. Finally, the book walks through a development example utilizing patterns. For programmers, project managers, teachers and students -- both new and experienced. This book presents a set of patterns that organize all the informal experience of successful Smalltalk programmers. This book will help you understand these patterns, and empower you to write more effective code.

Table of Contents

1. Introduction.

Coding. Talking Programs. Good Software. Style. What's Missing? Book Organization. Adoption. Learning a Pattern.

2. Patterns.

Why Patterns Work. Role of Patterns. Reading. Development. Review. Documentation. Clean Up. Format.

3. Behavior.

Methods. Composed Method. Constructor Method. Constructor Parameter Method. Shortcut Constructor Method. Conversion. Converter Method. Converter Constructor Method. Query Method. Comparing Method. Reversing Method. Method Object. Execute Around Method. Debug Printing Method. Method Comment. Messages. Message. Choosing Message. Decomposing Message. Intention Revealing Message. Intention Revealing Selector. Dispatched Interpretation. Double Dispatch. Mediating Protocol. Super. Extending Super. Modifying Super. Delegation. Simple Delegation. Self Delegation. Pluggable Behavior. Pluggable Selector. Pluggable Block. Collecting Parameter.

4. State.

Instance Variables. Common State. Variable State. Explicit Initialization. Lazy Initialization. Default Value Method. Constant Method. Direct Variable Access. Indirect Variable Access. Getting Method. Setting Method. Collection Accessor Method. Enumeration Method. Boolean Property Setting Method. Role Suggesting Instance Variable Name. Temporary Variables. Temporary Variable. Collecting Temporary Variable. Caching Temporary Variable. Explaining Temporary Variable. Reusing Temporary Variable. Role Suggesting Temporary Variable Name.

5. Collections.

Classes. Collection. OrderedCollection. RunArray. Set. Equality Method. Hashing Method. Dictionary. SortedCollection. Array. ByteArray. Interval. Collection Protocol. IsEmpty. Includes:. Concatentation. Enumeration. Do. Collect. Select/Reject. Detect. Inject:into:. Collection Idioms. Duplicate Removing Set. Temporarily Sorted Collection. Stack. Queue. Searching Literal. Lookup Cache. Parsing Stream. Concatenating Stream.

6. Classes.

Simple Superclass Name. Qualified Subclass Name.

7. Formatting.

Inline Message Pattern. Type Suggesting Parameter Name. Indented Control Flow. Rectangular Block. Guard Clause. Conditional Expression. Simple Enumeration Parameter. Cascade. Yourself. Interesting Return Value.

8. Development Example.

Problem. Start. Arithmetic. Integration.


Appendix A: Quick Reference.



Smalltalk Best Practice Patterns

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