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- Rename DeIid to Operator. It corresponds to operator <string> in the
syntax. The previous name is from when it was called deinfix in
sail1.
- Removed things that weren't actually common from
pretty_print_common.ml, e.g. printing identifiers is backend
specific. The doc_id function here was only used for a very specific
use case in pretty_print_lem, so I simplified it and renamed it to
doc_sia_id, as it is always used for a SIA.Id whatever that is.
- There is some support for anonymous records in constructors, e.g.
union Foo ('a : Type) = {
MkFoo : { field1 : 'a, field2 : int }
}
somewhat similar to the enum syntax in Rust. I'm not sure when this
was added, but there were a few odd things about it. It was
desugared in the preprocessor, rather than initial_check, and the
desugaring generated incorrect code for polymorphic anonymous
records as above.
I moved the code to initial_check, so the pre-processor now just
deals with pre-processor things and not generating types, and I
fixed the code to work with polymorphic types. This revealed some
issues in the C backend w.r.t. polymorphic structs, which is the
bulk of this commit. I also added some tests for this feature.
- OCaml backend can now generate a valid string_of function for
polymorphic structs, previously this would cause the ocaml to fail
to compile.
- Some cleanup in the Sail ott definition
- Add support for E_var in interpreter previously this would just
cause the interpreter to fail
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