CodeSnip Old Code (SVN)

Added new GetReferrersTo and GetDependentsOf methods to TDatabase.
Removed IDatabaseEdit's GetReferrers and GetDependents and _IDatabase's GetReferrersTo and GetDependentsOf methods along with their implementations in _TDatabase.
Modified code that used removed _TDatabase methods to use the new TDatabase methods instead.

Changed XRefs search to use TSnippetID and ISnippetIDList types in preference to TSnippet and TSnippetList wherever possible.
Also changed TSearchFilterFactory.CreateXRefSearchFilter to take a TSnippetID parameter instead of a TSnippet. Modified calling code accordingly.

Renamed IDatabase and Database function, along with internal TDatabase class and PvtDatabase varibale by placing underscore in front of their names. This is to flag the items as "legacy" and to avoid name clashes with new database code being developed.
Modified all code that calls Database to use _Database instead.

Removed unused unit reference to USnippetIDs.

Removed assertions that test for nil snippet after calls to Database.Lookup: this method now raises an exception when the lookup fails (see revision 3984).

Corrected & standardised "snippet not found" assertion messages.

Renamed TDBSnippetID in CS.Database.Types to TSnippetID and deleted TSnippetID from USnippetIDs.
Adjusted uses clauses of all code that uses TSnippetID as necessary.

Replaced variables and method names referencing a snippet's "DisplayName" with references to "Title".

Renamed TSnippet's DisplayName property as Title and modified affected code accordingly.

Renamed TSnippet's Units, Depends and XRef properties to RequiredModules, RequiredSnippets and XRefs respectively and modified affected code accordingly.