Guy Harris <ghar...@sonic.net> wrote:
> In the longer term, the compilation process should probably be split
> into:
yes.
> a phase that compiles a filter into a target-independent *and*
> link-layer-independent *and* snapshot-length-independent intermediate
> representation, optionally doing whatever optimization can be done with
> that;
The "AST" phase (rustc) or "RTL" (I think gcc used to this term, but I dunno
if it still does).
> a phase that compiles that intermediate representation into
> optionally-optimized code for a particular link layer, snapshot length,
> and target.
Yes.
> That would be used, for example, when reading a pcapng file with a
> full-pcapng-support API; the filter for the handle for that file would
> be set to the generated intermediate representation from the first
> phase and, for each new link-layer/snapshot length pair in the file,
> would generate the appropriate code for the filter, caching the
> results.
A good plan.
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