Adds necessary API methods for supporting abstract sorts in the cpp, java, python APIs.
An abstract sort represents a class of sorts. It is parameterized by a kind. For example, the abstract sort parameterized by the kind BITVECTOR_SORT denotes bitvectors of unspecified bit-width.
To support the above functionality, the kinds of Sort must be exported in the API, which is done in this PR.
This is the first step towards supporting the rewrite DSL for parameterized sorts, and planned SyGuS extensions that use gradual typing.
Organizing the PR a bit:
we hook up the subtheories to TheoryFf
we expose FF-related things via the C++/Pytohn API and SMT-LIB2 interface.
we add a bunch of tests against these interfaces.
mkFunctionSort that takes two sorts as arguments is redundant, because
the first argument is equivalent to a vector of size one passed to the
other overload of mkFunctionSort. This commit removes the method from
the C++ API but keeps the existing semantics for the Java and Python
bindings for convenience and consistency with, e.g. mkTerm.
The public cvc5 API now lives in the cvc5 namespace. All internal parts were moved into the (new) internal namespace.
The final hierarchy will be as follows:
cvc5
~~ public API
::context
::internal
::parser
::main
After this PR it will be:
cvc5
~~ public API
::internal
::context
::main
::parser
This adds a function to retrieve the sort arguments an instantiated
sort has been instantiated with. It further deletes
Sort::getDatatypeParamSorts() and
Sort::getUninterpretedSortParamSorts().
Previously, Sort::isParametricDatatype() returned true for both
instantiated and non-instantiated parametric datatypes.
This deletes the method, instead one can check getDatatype().isParametric(). Parametric datatypes will be distinguished from instantiated parametric datatypes via a forthcoming method Sort::isInstantiated.
Co-authored-by: ajreynol <andrew.j.reynolds@gmail.com>
Removes checkEntailed from Solver.
Removes isEntailed, isNotEntailed, isEntailedUnknown from Result.
Removes isSubsortOf, isFunctionLike, getUninterpretedSortName, getSortConstructorName from Sort.
Updates examples and unit tests.
Since we do not support arithmetic subtyping on the API level anymore,
this function is obsolete. Consequently, this now requires that
replacement terms as arguments to Term::substitute() are of the same
sort as the replaced terms.
