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Add Z3_mk_polymorphic_datatype API and refactor datatype creation

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- Added new API Z3_mk_polymorphic_datatype to z3_api.h
- Renamed static mk_datatype_decl to api_datatype_decl in api_datatype.cpp
- Modified api_datatype_decl to accept explicit type parameters
- Updated all callers to use renamed function
- Added test_polymorphic_datatype_api demonstrating new API usage
- Both tests pass successfully

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot] 2025-10-14 07:57:48 +00:00
parent ee6af51d94
commit b7621ae90f
3 changed files with 187 additions and 15 deletions
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27
src/api/z3_api.h
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@ -2127,6 +2127,33 @@ extern "C" {
unsigned num_constructors,
Z3_constructor constructors[]);
/**
\brief Create a parametric datatype with explicit type parameters.
This function is similar to #Z3_mk_datatype, except it takes an explicit set of type parameters.
The parameters can be type variables created with #Z3_mk_type_variable, allowing the definition
of polymorphic datatypes that can be instantiated with different concrete types.
\param c logical context
\param name name of the datatype
\param num_parameters number of type parameters (can be 0)
\param parameters array of type parameters (type variables or concrete sorts)
\param num_constructors number of constructors
\param constructors array of constructor specifications
\sa Z3_mk_datatype
\sa Z3_mk_type_variable
\sa Z3_mk_datatype_sort
def_API('Z3_mk_polymorphic_datatype', SORT, (_in(CONTEXT), _in(SYMBOL), _in(UINT), _in_array(2, SORT), _in(UINT), _inout_array(4, CONSTRUCTOR)))
*/
Z3_sort Z3_API Z3_mk_polymorphic_datatype(Z3_context c,
Z3_symbol name,
unsigned num_parameters,
Z3_sort parameters[],
unsigned num_constructors,
Z3_constructor constructors[]);
/**
\brief create a forward reference to a recursive datatype being declared.
The forward reference can be used in a nested occurrence: the range of an array