43. AST type ussage collection

The ast_used module implements type collecting infrasturcture. It allows to determine, if enumeration and structure types are used in the code.

All functions and symbols are in “ast_used” module, use require to get access to it.

require daslib/ast_used

43.1. Structures

OnlyUsedTypes

Collection of all structure and enumeration types that are used in the AST.

Fields

  • st : table< Structure ?;void> - all structure types used

  • en : table< Enumeration ?;void> - all enumeration types used

43.2. Collecting type information

collect_used_types(vfun: array<Function?>; vvar: array<Variable?>; blk: block<(usedTypes:OnlyUsedTypes):void>)

Goes through list of functions vfun and variables vvar and collects list of which enumeration and structure types are used in them. Calls blk with said list.

Arguments