}

// Map contains Type fields specific to maps.
type Map struct {
	Key  *Type // Key type
	Elem *Type // Val (elem) type

	Bucket *Type // internal struct type representing a hash bucket
}

// MapType returns t's extra map-specific fields.
func (t *Type) MapType() *Map {
	t.wantEtype(TMAP)
	return t.extra.(*Map)
}

// Forward contains Type fields specific to forward types.
type Forward struct {

type rtype struct {
	t abi.Type
}

func (t *rtype) common() *abi.Type {
	return &t.t
}

func (t *rtype) uncommon() *abi.UncommonType {
	return t.t.Uncommon()
}

type aNameOff = abi.NameOff
type aTypeOff = abi.TypeOff
type aTextOff = abi.TextOff

// ChanDir represents a channel type's direction.
type ChanDir int

const (
	RecvDir ChanDir             = 1 << iota // <-chan

			// Allocate space to unroll the gcprog. This space will consist of
			// a dummy _type value and the unrolled gcprog. The dummy _type will
			// refer to the bitmap, and the mspan will refer to the dummy _type.
			if span.spanclass.sizeclass() != 0 {
				throw("GCProg for type that isn't large")
			}
			spaceNeeded := alignUp(unsafe.Sizeof(_type{}), goarch.PtrSize)
			heapBitsOff := spaceNeeded

			if pname, ptype := extractName(x, p.tok == _Comma); pname != nil && (ptype != nil || p.tok != _Rbrack) {
				// d.Name "[" pname ...
				// d.Name "[" pname ptype ...
				// d.Name "[" pname ptype "," ...
				d.TParamList = p.paramList(pname, ptype, _Rbrack, true) // ptype may be nil
				d.Alias = p.gotAssign()
				d.Type = p.typeOrNil()
			} else {
				// d.Name "[" pname "]" ...
				// d.Name "[" x ...

//   - github.com/v2pro/plz
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname reflect_unsafe_New reflect.unsafe_New
func reflect_unsafe_New(typ *_type) unsafe.Pointer {
	return mallocgc(typ.Size_, typ, true)
}

//go:linkname reflectlite_unsafe_New internal/reflectlite.unsafe_New
func reflectlite_unsafe_New(typ *_type) unsafe.Pointer {
	return mallocgc(typ.Size_, typ, true)
}

func ensureJobConditionStatus(list []batch.JobCondition, cType batch.JobConditionType, status v1.ConditionStatus, reason, message string, now time.Time) ([]batch.JobCondition, bool) {
	if condition := findConditionByType(list, cType); condition != nil {
		if condition.Status != status || condition.Reason != reason || condition.Message != message {
			*condition = *newCondition(cType, status, reason, message, now)
			return list, true
		}

func testServeFileContentType(t *testing.T, mode testMode) {
	const ctype = "icecream/chocolate"
	ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
		switch r.FormValue("override") {
		case "1":
			w.Header().Set("Content-Type", ctype)
		case "2":
			// Explicitly inhibit sniffing.
			w.Header()["Content-Type"] = []string{}
		}
		ServeFile(w, r, "testdata/file")
	})).ts

	extra *mapextra // optional fields
}

// mapextra holds fields that are not present on all maps.
type mapextra struct {
	// If both key and elem do not contain pointers and are inline, then we mark bucket
	// type as containing no pointers. This avoids scanning such maps.
	// However, bmap.overflow is a pointer. In order to keep overflow buckets

const gcBitsHeaderBytes = unsafe.Sizeof(gcBitsHeader{})

type gcBitsHeader struct {
	free uintptr // free is the index into bits of the next free byte.
	next uintptr // *gcBits triggers recursive type bug. (issue 14620)
}

type gcBitsArena struct {
	_ sys.NotInHeap
	// gcBitsHeader // side step recursive type bug (issue 14620) by including fields by hand.

}

// demangleType parses:
//
//	<type> ::= <builtin-type>
//	       ::= <function-type>
//	       ::= <class-enum-type>
//	       ::= <array-type>
//	       ::= <pointer-to-member-type>
//	       ::= <template-param>
//	       ::= <template-template-param> <template-args>
//	       ::= <substitution>
//	       ::= <CV-qualifiers> <type>
//	       ::= P <type>
//	       ::= R <type>