if t.Kind() != Array {
		return nil
	}
	return (*ArrayType)(unsafe.Pointer(t))
}

// FuncType returns t cast to a *FuncType, or nil if its tag does not match.
func (t *Type) FuncType() *FuncType {
	if t.Kind() != Func {
		return nil
	}
	return (*FuncType)(unsafe.Pointer(t))
}

// InterfaceType returns t cast to a *InterfaceType, or nil if its tag does not match.

}

func (t rtype) NumIn() int {
	tt := t.Type.FuncType()
	if tt == nil {
		panic("reflect: NumIn of non-func type")
	}
	return int(tt.InCount)
}

func (t rtype) NumOut() int {
	tt := t.Type.FuncType()
	if tt == nil {
		panic("reflect: NumOut of non-func type")
	}
	return tt.NumOut()
}

func (t rtype) Out(i int) Type {
	tt := t.Type.FuncType()
	if tt == nil {

type interfacetype = abi.InterfaceType

type maptype = abi.MapType

type arraytype = abi.ArrayType

type chantype = abi.ChanType

type slicetype = abi.SliceType

type functype = abi.FuncType

type ptrtype = abi.PtrType

type name = abi.Name

type structtype = abi.StructType

func pkgPath(n name) string {
	if n.Bytes == nil || *n.Data(0)&(1<<2) == 0 {
		return ""
	}

// ----------------------------------------------------------------------------
// Implementation

// funcType type-checks a function or method type.
func (check *Checker) funcType(sig *Signature, recvPar *ast.FieldList, ftyp *ast.FuncType) {
	check.openScope(ftyp, "function")
	check.scope.isFunc = true
	check.recordScope(ftyp, check.scope)
	sig.scope = check.scope

		Incomplete bool       // true if (source) fields are missing in the Fields list
	}

	// Pointer types are represented via StarExpr nodes.

	// A FuncType node represents a function type.
	FuncType struct {
		Func       token.Pos  // position of "func" keyword (token.NoPos if there is no "func")
		TypeParams *FieldList // type parameters; or nil

// ----------------------------------------------------------------------------
// Implementation

// funcType type-checks a function or method type.
func (check *Checker) funcType(sig *Signature, recvPar *syntax.Field, tparams []*syntax.Field, ftyp *syntax.FuncType) {
	check.openScope(ftyp, "function")
	check.scope.isFunc = true
	check.recordScope(ftyp, check.scope)
	sig.scope = check.scope

		// Uniquely, FuncDecl breaks the invariant that
		// preorder traversal yields tokens in lexical order:
		// in fact, FuncDecl.Recv precedes FuncDecl.Type.Func.
		//
		// As a workaround, we inline the case for FuncType
		// here and order things correctly.
		//
		children = nil // discard ast.Walk(FuncDecl) info subtrees
		children = append(children, tok(n.Type.Func, len("func")))
		if n.Recv != nil {

		if i > 0 {
			s += "; "
		}
		s += v.Name + "=" + strconv.FormatInt(v.Val, 10)
	}
	s += "}"
	return s
}

// A FuncType represents a function type.
type FuncType struct {
	CommonType
	ReturnType Type
	ParamType  []Type
}

func (t *FuncType) String() string {
	s := "func("
	for i, t := range t.ParamType {
		if i > 0 {
			s += ", "
		}
		s += t.String()
	}
	s += ")"

	return abi.TFlag(p[abi.TFlagOff(arch.PtrSize)])&abi.TFlagUncommon != 0
}

// Type.FuncType.dotdotdot
func decodetypeFuncDotdotdot(arch *sys.Arch, p []byte) bool {
	return uint16(decodeInuxi(arch, p[commonsize(arch)+2:], 2))&(1<<15) != 0
}

// Type.FuncType.inCount
func decodetypeFuncInCount(arch *sys.Arch, p []byte) int {
	return int(decodeInuxi(arch, p[commonsize(arch):], 2))
}

	case **ast.BlockStmt:
		walkBeforeAfter(*n, before, after)
	case **ast.CallExpr:
		walkBeforeAfter(*n, before, after)
	case **ast.FieldList:
		walkBeforeAfter(*n, before, after)
	case **ast.FuncType:
		walkBeforeAfter(*n, before, after)
	case **ast.Ident:
		walkBeforeAfter(*n, before, after)
	case **ast.BasicLit:
		walkBeforeAfter(*n, before, after)

	// pointers to slices
	case *[]ast.Decl: