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 TSnippetList defined in DB.USnippets unit as _TSnippetList and modified affect code accordingly. This is a first step towards changing snippet lists throughout the code to use a different list type.

Removed TCompilerIDs definition: the definition from Compilers.UGlobals is now used instead.

Renamed TCompilerSearchCompilers as TCompilerIDs and made necessary changes to calling code.

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 USnippetIDs unit from project.
Changed affected units to use CS.Database.Snippets instead.

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).

Changed ISearchFilter.Match to take a TSnippetID parameter instead of a TSnippet.
Changed ISearch.Execute's input and output parameters types from TSnippetList to ISnippetIDList.
Made minimal internal changes necessitated by these type changes.

Changed TSearchFilterFactory.CreateManualSelectionSearchFilter to take a ISnippetIDList parameter instead of TSnippetList.