// A VoidType represents the C void type.
type VoidType struct {
	CommonType
}

func (t *VoidType) String() string { return "void" }

// A PtrType represents a pointer type.
type PtrType struct {
	CommonType
	Type Type
}

func (t *PtrType) String() string { return "*" + t.Type.String() }

// A StructType represents a struct, union, or C++ class type.
type StructType struct {
	CommonType

	return c, d
}

func (f *Func) SplitSlice(name *LocalSlot) (*LocalSlot, *LocalSlot, *LocalSlot) {
	ptrType := types.NewPtr(name.Type.Elem())
	lenType := types.Types[types.TINT]
	p := f.SplitSlot(name, ".ptr", 0, ptrType)
	l := f.SplitSlot(name, ".len", ptrType.Size(), lenType)
	c := f.SplitSlot(name, ".cap", ptrType.Size()+lenType.Size(), lenType)
	return p, l, c
}

type arrayType = abi.ArrayType

// chanType represents a channel type.
type chanType = abi.ChanType

type funcType = abi.FuncType

type interfaceType = abi.InterfaceType

// ptrType represents a pointer type.
type ptrType = abi.PtrType

// sliceType represents a slice type.
type sliceType = abi.SliceType

// structType represents a struct type.
type structType = abi.StructType

	if a._type != nil && a._type.Kind_&abi.KindMask != abi.Pointer {
		return nil, plainError("args must be a pointer or nil")
	}
	argp := a.data
	var argSize uintptr
	if argp != nil {
		argSize = (*ptrtype)(unsafe.Pointer(a._type)).Elem.Size_
	}

	h := new(debugCallHandler)
	h.gp = gp
	// gp may not be running right now, but we can still get the M
	// it will run on since it's locked.
	h.mp = gp.lockedm.ptr()

	if t.TFlag&TFlagUncommon == 0 {
		return nil
	}
	switch t.Kind() {
	case Struct:
		return &(*structTypeUncommon)(unsafe.Pointer(t)).u
	case Pointer:
		type u struct {
			PtrType
			u UncommonType
		}
		return &(*u)(unsafe.Pointer(t)).u
	case Func:
		type u struct {
			FuncType
			u UncommonType
		}
		return &(*u)(unsafe.Pointer(t)).u
	case Slice:
		type u struct {

	if pi, ok := ptrMap.Load(t); ok {
		return &pi.(*ptrType).Type
	}

	// Look in known types.
	s := "*" + t.String()
	for _, tt := range typesByString(s) {
		p := (*ptrType)(unsafe.Pointer(tt))
		if p.Elem != &t.t {
			continue
		}
		pi, _ := ptrMap.LoadOrStore(t, p)
		return &pi.(*ptrType).Type
	}

	// Create a new ptrType starting with the description
	// of an *unsafe.Pointer.

func dumpotherroot(description string, to unsafe.Pointer) {
	dumpint(tagOtherRoot)
	dumpstr(description)
	dumpint(uint64(uintptr(to)))
}

func dumpfinalizer(obj unsafe.Pointer, fn *funcval, fint *_type, ot *ptrtype) {
	dumpint(tagFinalizer)
	dumpint(uint64(uintptr(obj)))
	dumpint(uint64(uintptr(unsafe.Pointer(fn))))
	dumpint(uint64(uintptr(unsafe.Pointer(fn.fn))))
	dumpint(uint64(uintptr(unsafe.Pointer(fint))))

		// constants to the parameter type, to avoid a type mismatch.
		ptype := p.rewriteUnsafe(param.Go)

		if !p.needsPointerCheck(f, param.Go, args[i]) || param.BadPointer || p.checkUnsafeStringData(args[i]) {
			if ptype != param.Go {
				needsUnsafe = true
			}
			fmt.Fprintf(&sb, "var _cgo%d %s = %s; ", i,
				gofmt(ptype), gofmtPos(arg, origArg.Pos()))
			continue
		}

		// Check for &a[i].

func arena_arena_New(arena unsafe.Pointer, typ any) any {
	t := (*_type)(efaceOf(&typ).data)
	if t.Kind_&abi.KindMask != abi.Pointer {
		throw("arena_New: non-pointer type")
	}
	te := (*ptrtype)(unsafe.Pointer(t)).Elem
	x := ((*userArena)(arena)).new(te)
	var result any
	e := efaceOf(&result)
	e._type = t
	e.data = x
	return result
}

	}
	Type struct {
		Typ, Ptr int
	}
	StructField struct {
		Name, PkgPath, Typ, Tag, Offset int
	}
	StructType struct {
		Fields int
	}
	PtrType struct {
		Elem int
	}
	SliceType struct {
		Elem int
	}
	ArrayType struct {
		Elem, Len int
	}

	Stktop struct {
		Stackguard, Stackbase, Gobuf int
	}
	Gobuf struct {