JCL Help:TExprHashContext

 JCL Help: TExprHashContext Class

ExprEval

JCL Classes

► JclExprEval.pas Classes

[+] JclExprEval.pas Classes

► TExprHashContext Methods

[+] TExprHashContext Methods

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Class Hierarchy

TExprContext

    |
TExprHashContext

Summary

A context class that uses a hash map for its implementation.

Pascal

 public TExprHashContext = class(TExprContext);

Description

This is a concrete context class that uses a hash map for symbol lookup. The fact that it uses a hash for its implementation means that symbol lookup takes a constant time, i.e. it is independant of the actual number of symbols stored in the context; however, this guarantee depends on the internal hash map's internal table being large enough to minimize collisions.

About

Unit

JclExprEval

Navigation

▼ TExprHashContext

  TExprHashContext

  TExprHashContext.Destroy

  TExprHashContext.Find@string

Donator

Barry Kelly

Notes

Case sensitivity is also a concern; see the Create method.

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