Module db

Defines database & queries for macro expansion.

Structs

• AstIdMapQuery
• DeclMacroExpanderQuery
• ExpandDatabaseGroupStorage__
• ExpandDatabaseStorage
  Representative struct for the query group.
• ExpandProcMacroQuery
• InternMacroCallLookupQuery
• InternMacroCallQuery
• InternSyntaxContextLookupQuery
• InternSyntaxContextQuery
• MacroArgQuery
• ParseMacroExpansionErrorQuery
• ParseMacroExpansionQuery
• ProcMacroSpanQuery
• ProcMacrosQuery
• RealSpanMapQuery

Enums

• TokenExpander

Traits

• ExpandDatabase

Functions

• expand_speculative
  This expands the given macro call, but with different arguments. This is used for completion, where we want to see what ‘would happen’ if we insert a token. The token_to_map mapped down into the expansion, with the mapped token returned.