simplifier.go

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package z3
 
/*
#include "z3.h"
#include <stdlib.h>
*/
import "C"
import (
        "runtime"
        "unsafe"
)
 
// Simplifier represents a Z3 simplifier for pre-processing solver assertions.
type Simplifier struct {
        ctx *Context
        ptr C.Z3_simplifier
}
 
// newSimplifier creates a new Simplifier and manages its reference count.
func newSimplifier(ctx *Context, ptr C.Z3_simplifier) *Simplifier {
        s := &Simplifier{ctx: ctx, ptr: ptr}
        C.Z3_simplifier_inc_ref(ctx.ptr, ptr)
        runtime.SetFinalizer(s, func(simp *Simplifier) {
                C.Z3_simplifier_dec_ref(simp.ctx.ptr, simp.ptr)
        })
        return s
}
 
// MkSimplifier creates a simplifier with the given name.
func (c *Context) MkSimplifier(name string) *Simplifier {
        cName := C.CString(name)
        defer C.free(unsafe.Pointer(cName))
        return newSimplifier(c, C.Z3_mk_simplifier(c.ptr, cName))
}
 
// AndThen creates a simplifier that applies s followed by s2.
func (s *Simplifier) AndThen(s2 *Simplifier) *Simplifier {
        return newSimplifier(s.ctx, C.Z3_simplifier_and_then(s.ctx.ptr, s.ptr, s2.ptr))
}
 
// UsingParams creates a simplifier that uses the given parameters.
func (s *Simplifier) UsingParams(params *Params) *Simplifier {
        return newSimplifier(s.ctx, C.Z3_simplifier_using_params(s.ctx.ptr, s.ptr, params.ptr))
}
 
// GetHelp returns help information for the simplifier.
func (s *Simplifier) GetHelp() string {
        return C.GoString(C.Z3_simplifier_get_help(s.ctx.ptr, s.ptr))
}
 
// GetParamDescrs returns parameter descriptions for the simplifier.
func (s *Simplifier) GetParamDescrs() *ParamDescrs {
        return newParamDescrs(s.ctx, C.Z3_simplifier_get_param_descrs(s.ctx.ptr, s.ptr))
}
 
// GetSimplifierDescr returns a description of the simplifier with the given name.
func (c *Context) GetSimplifierDescr(name string) string {
        cName := C.CString(name)
        defer C.free(unsafe.Pointer(cName))
        return C.GoString(C.Z3_simplifier_get_descr(c.ptr, cName))
}