Reduce memory requirements by sharing type information

apnadkarni / tcl-cffi

A Foreign Function Interface extension for Tcl

BSD 2-Clause "Simplified" License

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Reduce memory requirements by sharing type information #33

Open apnadkarni opened 3 years ago

apnadkarni commented 3 years ago

The type information blocks should be shared among declarations. For example, every "int" need not get its own block unless attributes are different. Ditto for type aliases - reuse unless modified.

apnadkarni commented 1 year ago

Also consider caching the usability of that type for each context (param, field, return) within the type structure so it is not recomputed unless other annotations are added.

apnadkarni commented 10 months ago

Perhaps define a Tcl_Obj type that holds a type definition.

apnadkarni commented 6 months ago

Several implementation possibilities:

Only cache aliases or single word (int etc.) type declarations
Cache based on the string representation of the type declaration by looking up a string hash. Note order of annotation will matter but that might be ok)
Store the type declaration in a Tcl_Obj and atomize (but this may shimmer)