Movatterモバイル変換


[0]ホーム

URL:


D Logo
Menu
Search

Language Reference

table of contents

Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page.Requires a signed-in GitHub account. This works well for small changes.If you'd like to make larger changes you may want to consider usinga local clone.

Contract Programming

Contents
  1. Assert Contract
  2. Pre and Post Contracts
  3. Invariants
  4. References

Contracts enable specifying conditions that must hold true when the flow of runtime execution reaches the contract. If a contract is not true, then the program is assumed to have entered an undefined state.

Rationale:

Building contract support into the language provides:

  1. a consistent look and feel for the contracts
  2. tool support
  3. the implementation can generate better code using information gathered from the contracts
  4. easier management and enforcement of contracts
  5. handling of contract inheritance
Contracts make D bug resistant

Assert Contract

SeeAssertExpression.

Pre and Post Contracts

See:

Invariants

SeeStruct Invariants andClass Invariants.

References

Template Mixins
Conditional Compilation
Copyright © 1999-2026 by theD Language Foundation | Page generated byDdoc on Sat Feb 21 00:13:46 2026

[8]ページ先頭

©2009-2026 Movatter.jp