//
//go:nosplit
//go:nowritebarrier
func cgoCheckTypedBlock(typ *_type, src unsafe.Pointer, off, size uintptr) {
	// Anything past typ.PtrBytes is not a pointer.
	if typ.PtrBytes <= off {
		return
	}
	if ptrdataSize := typ.PtrBytes - off; size > ptrdataSize {
		size = ptrdataSize
	}

	if typ.Kind_&abi.KindGCProg == 0 {
		cgoCheckBits(src, typ.GCData, off, size)
		return
	}

		// This always copies a full value of type typ so it's safe
		// to pass typ along as an optimization. See the comment on
		// bulkBarrierPreWrite.
		bulkBarrierPreWrite(uintptr(dst), uintptr(src), typ.PtrBytes, typ)
	}
	// There's a race here: if some other goroutine can write to
	// src, it may change some pointer in src after we've
	// performed the write barrier but before we perform the

			})
			// Write a dummy _type in the new space.
			//
			// We only need to write size, PtrBytes, and GCData, since that's all
			// the GC cares about.
			gctyp = (*_type)(unsafe.Pointer(progSpan.base()))
			gctyp.Size_ = typ.Size_
			gctyp.PtrBytes = typ.PtrBytes
			gctyp.GCData = (*byte)(add(unsafe.Pointer(progSpan.base()), heapBitsOff))
			gctyp.TFlag = abi.TFlagUnrolledBitmap

		w.byte(byte(traceAllocFreeTypesBatch))
	}

	// Emit type.
	w.varint(uint64(node.id))
	w.varint(uint64(uintptr(unsafe.Pointer(typ))))
	w.varint(uint64(typ.Size()))
	w.varint(uint64(typ.PtrBytes))
	w.varint(uint64(len(typName)))
	w.stringData(typName)

	// Recursively walk all child nodes.
	for i := range node.children {
		child := node.children[i].Load()
		if child == nil {
			continue
		}

	h = h.pad(s, typ.Size_-typ.PtrBytes)
	h.flush(s, uintptr(ptr), typ.Size_)

	if typ.Kind_&abi.KindGCProg != 0 {
		// Zero out temporary ptrmask buffer inside object.
		memclrNoHeapPointers(ptr, (gcProgBits+7)/8)
	}

	// Update the PtrBytes value in the type information. After this
	// point, the GC will observe the new bitmap.
	s.largeType.PtrBytes = uintptr(ptr) - base + typ.PtrBytes

	if length > 0 && typ.Pointers() {
		array.PtrBytes = typ.Size_*uintptr(length-1) + typ.PtrBytes
	}
	array.Align_ = typ.Align_
	array.FieldAlign_ = typ.FieldAlign_
	array.Len = uintptr(length)
	array.Slice = &(SliceOf(elem).(*rtype).t)

	switch {
	case !typ.Pointers() || array.Size_ == 0:
		// No pointers.
		array.GCData = nil
		array.PtrBytes = 0

	case length == 1:

// or the functions in compiletype.go to access this type instead.
// (TODO: this admonition applies to every type in this package.
// Put it in some shared location?)
type Type struct {
	Size_       uintptr
	PtrBytes    uintptr // number of (prefix) bytes in the type that can contain pointers
	Hash        uint32  // hash of type; avoids computation in hash tables
	TFlag       TFlag   // extra type information flags

			// from and to only ever refer to memory representing whole values of
			// type et. See the comment on bulkBarrierPreWrite.
			bulkBarrierPreWriteSrcOnly(uintptr(p), uintptr(oldPtr), lenmem-et.Size_+et.PtrBytes, et)
		}
	}
	memmove(p, oldPtr, lenmem)

	return slice{p, newLen, newcap}
}

// nextslicecap computes the next appropriate slice length.
func nextslicecap(newLen, oldCap int) int {

		dwrite(unsafe.Pointer(unsafe.StringData(pkgpath)), uintptr(len(pkgpath)))
		dwritebyte('.')
		dwrite(unsafe.Pointer(unsafe.StringData(name)), uintptr(len(name)))
	}
	dumpbool(t.Kind_&abi.KindDirectIface == 0 || t.PtrBytes != 0)
}

// dump an object.
func dumpobj(obj unsafe.Pointer, size uintptr, bv bitvector) {
	dumpint(tagObject)
	dumpint(uint64(uintptr(obj)))
	dumpmemrange(obj, size)
	dumpfields(bv)
}