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Adding field update feature

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-01-03 01:27:52 -08:00
parent a296023823
commit 129e048a1b
10 changed files with 221 additions and 24 deletions
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25
src/api/z3_api.h
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@ -877,6 +877,8 @@ typedef enum
- Z3_OP_DT_ACCESSOR: datatype accessor.
- Z3_OP_DT_UPDATE_FIELD: datatype field update.
- Z3_OP_PB_AT_MOST: Cardinality constraint.
E.g., x + y + z <= 2
@ -1066,6 +1068,7 @@ typedef enum {
Z3_OP_DT_CONSTRUCTOR=0x800,
Z3_OP_DT_RECOGNISER,
Z3_OP_DT_ACCESSOR,
Z3_OP_DT_UPDATE_FIELD,
// Pseudo Booleans
Z3_OP_PB_AT_MOST=0x900,
@ -3751,6 +3754,28 @@ END_MLAPI_EXCLUDE
Z3_func_decl Z3_API Z3_get_datatype_sort_constructor_accessor(
__in Z3_context c, __in Z3_sort t, unsigned idx_c, unsigned idx_a);
/**
\brief Update record field with a value.
This corresponds to the 'with' construct in OCaml.
It has the effect of updating a record field with a given value.
The remaining fields are left unchanged. It is the record
equivalent of an array store (see \sa Z3_mk_store).
If the datatype has more than one constructor, then the update function
behaves as identity if there is a miss-match between the accessor and
constructor. For example ((_ update-field car) nil 1) is nil,
while ((_ update-field car) (cons 2 nil) 1) is (cons 1 nil).
\pre Z3_get_sort_kind(Z3_get_sort(c, t)) == Z3_get_domain(c, field_access, 1) == Z3_DATATYPE_SORT
\pre Z3_get_sort(c, value) == Z3_get_range(c, field_access)
def_API('Z3_datatype_update_field', AST, (_in(CONTEXT), _in(FUNC_DECL), _in(AST), _in(AST)))
*/
Z3_ast Z3_API Z3_datatype_update_field(
__in Z3_context c, __in Z3_func_decl field_access,
__in Z3_ast t, __in Z3_ast value);
/**
\brief Return arity of relation.