Ada Idioms

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This course describes how to implement selected programming idioms in the Ada language. Prior knowledge of Ada is required, although some explanations of the underlying semantics are provided when appropriate.

This document was written by Patrick Rogers.

Note

The code examples in this course use an 80-column limit, which is a typical limit for Ada code. Note that, on devices with a small screen size, some code examples might be difficult to read.

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Contents:

• Introduction
  • Assumptions
  • Definitions
    • Suppliers and Clients
    • Compile-time Visibility
    • Views
    • Partial and Full Views
  • Bibliography
• Essential Design Idioms for Packages
  • Motivation
  • Implementation(s)
    • Named Collection of Declarations
      • Pros
      • Cons
    • Groups of Related Program Units
      • Pros
      • Cons
  • Notes
  • Bibliography
• Abstract Data Types
  • Motivation
  • Implementation(s)
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
  • Bibliography
• Abstract Data Machines
  • Motivation
  • Implementation(s)
  • Pros
  • Cons
  • Bibliography
• Programming by Extension
  • Motivation
  • Implementation(s)
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
  • Bibliography
• Constructor Functions For Abstract Data Types
  • Motivation
  • Implementation(s)
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
• Controlling Object Initialization and Creation
  • Motivation
  • Implementation(s)
    • Compile-Time Legality
    • Run-Time Checks
    • Preventing Object Creation by Clients
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
• Type Punning
  • Motivation
  • Implementation(s)
    • Overlays
    • Unchecked Conversions on Address Values
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
  • Bibliography
• Expressing Inheritance Idioms
  • Motivation
    • Building Blocks
  • Implementation(s)
    • Subtype Inheritance
    • Implementation Inheritance
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
  • Bibliography
• Providing Component Access to Enclosing Record Objects
  • Motivation
  • Implementation(s)
  • Real-World Example
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
  • Full Source Code for Selected Units
• Interrupt Handling
  • Motivation
  • Implementation(s)
    • First Level Handler Alone
    • Task Notification Introduction
    • Task Notification With Communication
    • Task Notification Without Communication
  • Pros
  • Cons
  • Relationship With Other Idioms
  • What About Priorities?
  • Notes
  • Bibliography
• Reducing Object Code from Generic Package Instantiations
  • Motivation
  • Implementation(s)
  • Pros
  • Cons
  • Relationship With Other Idioms
  • Notes
• Appendices