func (dv *DynValue) ExprValue() ref.Val {
	return dv.exprValue
}

// Value returns the underlying value held by this reference.
func (dv *DynValue) Value() interface{} {
	return dv.value
}

// SetValue updates the underlying value held by this reference.
func (dv *DynValue) SetValue(value interface{}) error {
	dv.value = value
	var err error

// StringValue returns a new [Value] for a string.
func StringValue(value string) Value {
	return Value{num: uint64(len(value)), any: stringptr(unsafe.StringData(value))}
}

// IntValue returns a [Value] for an int.
func IntValue(v int) Value {
	return Int64Value(int64(v))
}

// Int64Value returns a [Value] for an int64.
func Int64Value(v int64) Value {
	return Value{num: uint64(v), any: KindInt64}
}

// Using == on two Values does not compare the underlying values
// they represent.
type Value struct {
	// typ_ holds the type of the value represented by a Value.
	// Access using the typ method to avoid escape of v.
	typ_ *abi.Type

	// Pointer-valued data or, if flagIndir is set, pointer to data.
	// Valid when either flagIndir is set or typ.pointers() is true.
	ptr unsafe.Pointer

	// flag holds metadata about the value.

  using const_iterator = TU::const_iterator;
  TU values_;

 public:
  TU::iterator begin() { return values_.begin(); }
  TU::iterator end() { return values_.end(); }
  TU::const_iterator begin() const { return values_.begin(); }
  TU::const_iterator end() const { return values_.end(); }
  const TU::value_type& operator[](size_t i) const { return values_[i]; }
  TU::value_type& operator[](size_t i) { return values_[i]; }

func FromBool(b bool) *Value {
	return &Value{value: b}
}

// FromTimestamp creates a Value from a timestamp
func FromTimestamp(t time.Time) *Value {
	return &Value{value: t}
}

// FromNull creates a Value with Null value
func FromNull() *Value {
	return &Value{value: nil}
}

// FromMissing creates a Value with Missing value
func FromMissing() *Value {
	return &Value{value: Missing{}}
}

package atomic

import (
	"unsafe"
)

// A Value provides an atomic load and store of a consistently typed value.
// The zero value for a Value returns nil from [Value.Load].
// Once [Value.Store] has been called, a Value must not be copied.
//
// A Value must not be copied after first use.
type Value struct {
	v any
}

// efaceWords is interface{} internal representation.

	return k.setStringValue(name, SZ, value)
}

// SetExpandStringValue sets the data and type of a name value
// under key k to value and EXPAND_SZ. The value must not contain a zero byte.
func (k Key) SetExpandStringValue(name, value string) error {
	return k.setStringValue(name, EXPAND_SZ, value)
}

// SetStringsValue sets the data and type of a name value

func (v Value) CanAddr() bool {
	return v.flag&flagAddr != 0
}

// CanSet reports whether the value of v can be changed.
// A [Value] can be changed only if it is addressable and was not
// obtained by the use of unexported struct fields.
// If CanSet returns false, calling [Value.Set] or any type-specific
// setter (e.g., [Value.SetBool], [Value.SetInt]) will panic.
func (v Value) CanSet() bool {

package trace

import "fmt"

// Value is a dynamically-typed value obtained from a trace.
type Value struct {
	kind   ValueKind
	scalar uint64
}

// ValueKind is the type of a dynamically-typed value from a trace.
type ValueKind uint8

const (
	ValueBad ValueKind = iota
	ValueUint64
)

// Kind returns the ValueKind of the value.
//
// It represents the underlying structure of the value.

//go:generate stringer -type Kind

// Kind specifies the kind of value represented by a [Value].
type Kind int

const (
	// unknown values
	Unknown Kind = iota

	// non-numeric values
	Bool
	String

	// numeric values
	Int
	Float
	Complex
)

// A Value represents the value of a Go constant.
type Value interface {
	// Kind returns the value kind.
	Kind() Kind