Optimize Code Generation by eliminating Unused Functions #328
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Introduce mechanism to track and manage function calls within the state. Add `calculateFunctionToBeGenerated` to determine necessary functions. Update functions to propagate and update state with call info. Handle top-level type assignments and update state accordingly. Introduce `callersSet` in `AstRoot` to conditionally include/exclude functions. Combine related function types in `FunctionType` enumeration. Update `Caller` and `Callee` types to use `TypeAssignmentInfo`. Optimize generated code by excluding unused functions based on `callersSet`.
Focused on improving PDU handling, optimizing analysis, and generating necessary functions.
Introduced a new mechanism to detect and track Protocol Data Units (PDUs) in the ASN.1/ACN AST.
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This PR introduces functionality to automatically detect and exclude unused generated functions, resulting in significantly smaller output code for both C and Ada backends.
Key Features
Unused Function Elimination via
-icdPdusWhen using the
-icdPdusargument, ASN1SCC now performs a dependency analysis starting from the specified PDUs and their associated functions (isEqual(),isValid(),init(),encode(), anddecode()).New
-dpdusArgumentA new command-line option,
-dpdus, was added to help identify Protocol Data Units (PDUs) in the input ASN.1 grammar.-icdPdusmore easily.Impact