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add parameter access to C++ API

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This commit is contained in:
Nikolaj Bjorner 2023-03-25 18:14:08 +01:00
parent 9ca0faa091
commit cd2ea6b703
1 changed files with 41 additions and 0 deletions
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41
src/api/c++/z3++.h
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@ -151,6 +151,7 @@ namespace z3 {
} }
/** /**
\brief A Context manages all other Z3 objects, global configuration options, etc. \brief A Context manages all other Z3 objects, global configuration options, etc.
*/ */
@ -750,6 +751,7 @@ namespace z3 {
func_decl_vector recognizers(); func_decl_vector recognizers();
}; };
/** /**
\brief Function declaration (aka function definition). It is the signature of interpreted and uninterpreted functions in Z3. \brief Function declaration (aka function definition). It is the signature of interpreted and uninterpreted functions in Z3.
The basic building block in Z3 is the function application. The basic building block in Z3 is the function application.
@ -770,6 +772,8 @@ namespace z3 {
sort range() const { Z3_sort r = Z3_get_range(ctx(), *this); check_error(); return sort(ctx(), r); } sort range() const { Z3_sort r = Z3_get_range(ctx(), *this); check_error(); return sort(ctx(), r); }
symbol name() const { Z3_symbol s = Z3_get_decl_name(ctx(), *this); check_error(); return symbol(ctx(), s); } symbol name() const { Z3_symbol s = Z3_get_decl_name(ctx(), *this); check_error(); return symbol(ctx(), s); }
Z3_decl_kind decl_kind() const { return Z3_get_decl_kind(ctx(), *this); } Z3_decl_kind decl_kind() const { return Z3_get_decl_kind(ctx(), *this); }
unsigned num_parameters() const { return Z3_get_decl_num_parameters(ctx(), *this); }
func_decl transitive_closure(func_decl const&) { func_decl transitive_closure(func_decl const&) {
Z3_func_decl tc = Z3_mk_transitive_closure(ctx(), *this); check_error(); return func_decl(ctx(), tc); Z3_func_decl tc = Z3_mk_transitive_closure(ctx(), *this); check_error(); return func_decl(ctx(), tc);
@ -2687,6 +2691,43 @@ namespace z3 {
return out; return out;
} }
/**
\brief class for auxiliary parameters associated with func_decl
The class is initialized with a func_decl or application expression and an index
The accessor get_expr, get_sort, ... is available depending on the value of kind().
The caller is responsible to check that the kind of the parameter aligns with the call (get_expr etc).
Parameters are available on some declarations to contain additional information that is not passed as
arguments when a function is applied to arguments. For example, bit-vector extraction has two
integer parameters. Array map has a function parameter.
*/
class parameter {
Z3_parameter_kind m_kind;
func_decl m_decl;
unsigned m_index;
context& ctx() const { return m_decl.ctx(); }
void check_error() const { ctx().check_error(); }
public:
parameter(func_decl const& d, unsigned idx) : m_decl(d), m_index(idx) {
if (ctx().enable_exceptions() && idx >= d.num_parameters())
Z3_THROW(exception("parameter index is out of bounds"));
m_kind = Z3_get_decl_parameter_kind(ctx(), d, idx);
}
parameter(expr const& e, unsigned idx) : m_decl(e.decl()), m_index(idx) {
if (ctx().enable_exceptions() && idx >= m_decl.num_parameters())
Z3_THROW(exception("parameter index is out of bounds"));
m_kind = Z3_get_decl_parameter_kind(ctx(), m_decl, idx);
}
Z3_parameter_kind kind() const { return m_kind; }
expr get_expr() const { Z3_ast a = Z3_get_decl_ast_parameter(ctx(), m_decl, m_index); check_error(); return expr(ctx(), a); }
sort get_sort() const { Z3_sort s = Z3_get_decl_sort_parameter(ctx(), m_decl, m_index); check_error(); return sort(ctx(), s); }
func_decl get_decl() const { Z3_func_decl f = Z3_get_decl_func_decl_parameter(ctx(), m_decl, m_index); check_error(); return func_decl(ctx(), f); }
symbol get_symbol() const { Z3_symbol s = Z3_get_decl_symbol_parameter(ctx(), m_decl, m_index); check_error(); return symbol(ctx(), s); }
std::string get_rational() const { Z3_string s = Z3_get_decl_rational_parameter(ctx(), m_decl, m_index); check_error(); return s; }
double get_double() const { double d = Z3_get_decl_double_parameter(ctx(), m_decl, m_index); check_error(); return d; }
int get_int() const { int i = Z3_get_decl_int_parameter(ctx(), m_decl, m_index); check_error(); return i; }
};
class solver : public object { class solver : public object {
Z3_solver m_solver; Z3_solver m_solver;