values.go

/*
 * Cadence - The resource-oriented smart contract programming language
 *
 * Copyright Dapper Labs, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cadence

import (
	"encoding/binary"
	"fmt"
	"math/big"
	"unicode/utf8"
	"unsafe"

	"github.com/onflow/cadence/fixedpoint"
	"github.com/onflow/cadence/runtime/common"
	"github.com/onflow/cadence/runtime/errors"
	"github.com/onflow/cadence/runtime/format"
	"github.com/onflow/cadence/runtime/interpreter"
	"github.com/onflow/cadence/runtime/sema"
)

// Value

type Value interface {
	isValue()
	Type() Type
	MeteredType(gauge common.MemoryGauge) Type
	ToGoValue() any
	fmt.Stringer
}

// NumberValue

type NumberValue interface {
	Value
	ToBigEndianBytes() []byte
}

// Void

type Void struct{}

var _ Value = Void{}

func NewVoid() Void {
	return Void{}
}

func NewMeteredVoid(memoryGauge common.MemoryGauge) Void {
	common.UseMemory(memoryGauge, common.CadenceVoidValueMemoryUsage)
	return NewVoid()
}

func (Void) isValue() {}

func (Void) Type() Type {
	return TheVoidType
}

func (v Void) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (Void) ToGoValue() any {
	return nil
}

func (Void) String() string {
	return format.Void
}

// Optional

type Optional struct {
	Value Value
}

var _ Value = Optional{}

func NewOptional(value Value) Optional {
	return Optional{Value: value}
}

func NewMeteredOptional(memoryGauge common.MemoryGauge, value Value) Optional {
	common.UseMemory(memoryGauge, common.CadenceOptionalValueMemoryUsage)
	return NewOptional(value)
}

func (Optional) isValue() {}

func (o Optional) Type() Type {
	var innerType Type
	if o.Value == nil {
		innerType = TheNeverType
	} else {
		innerType = o.Value.Type()
	}

	return NewOptionalType(
		innerType,
	)
}

func (o Optional) MeteredType(gauge common.MemoryGauge) Type {
	var innerType Type
	if o.Value == nil {
		innerType = TheNeverType
	} else {
		innerType = o.Value.MeteredType(gauge)
	}

	return NewMeteredOptionalType(
		gauge,
		innerType,
	)
}

func (o Optional) ToGoValue() any {
	if o.Value == nil {
		return nil
	}

	value := o.Value.ToGoValue()

	return value
}

func (o Optional) String() string {
	if o.Value == nil {
		return format.Nil
	}
	return o.Value.String()
}

// Bool

type Bool bool

var _ Value = Bool(false)

func NewBool(b bool) Bool {
	return Bool(b)
}

func NewMeteredBool(memoryGauge common.MemoryGauge, b bool) Bool {
	common.UseMemory(memoryGauge, common.CadenceBoolValueMemoryUsage)
	return NewBool(b)
}

func (Bool) isValue() {}

func (Bool) Type() Type {
	return TheBoolType
}

func (v Bool) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Bool) ToGoValue() any {
	return bool(v)
}

func (v Bool) String() string {
	return format.Bool(bool(v))
}

// String

type String string

var _ Value = String("")

func NewString(s string) (String, error) {
	if !utf8.ValidString(s) {
		return "", errors.NewDefaultUserError("invalid UTF-8 in string: %s", s)
	}

	return String(s), nil
}

func NewMeteredString(
	memoryGauge common.MemoryGauge,
	memoryUsage common.MemoryUsage,
	stringConstructor func() string,
) (String, error) {
	common.UseMemory(memoryGauge, memoryUsage)
	str := stringConstructor()
	return NewString(str)
}

func (String) isValue() {}

func (String) Type() Type {
	return TheStringType
}

func (v String) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v String) ToGoValue() any {
	return string(v)
}

func (v String) String() string {
	return format.String(string(v))
}

// Bytes

type Bytes []byte

var _ Value = Bytes(nil)

// Unmetered because this is only used by cadence in tests
func NewBytes(b []byte) Bytes {
	return b
}

func (Bytes) isValue() {}

func (Bytes) Type() Type {
	return TheBytesType
}

func (v Bytes) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Bytes) ToGoValue() any {
	return []byte(v)
}

func (v Bytes) String() string {
	return format.Bytes(v)
}

// Character

// Character represents a Cadence character, which is a Unicode extended grapheme cluster.
// Hence, use a Go string to be able to hold multiple Unicode code points (Go runes).
// It should consist of exactly one grapheme cluster
type Character string

var _ Value = Character("")

func NewCharacter(b string) (Character, error) {
	if !sema.IsValidCharacter(b) {
		return "\uFFFD", errors.NewDefaultUserError("invalid character: %s", b)
	}
	return Character(b), nil
}

func NewMeteredCharacter(
	memoryGauge common.MemoryGauge,
	memoryUsage common.MemoryUsage,
	stringConstructor func() string,
) (Character, error) {
	common.UseMemory(memoryGauge, memoryUsage)
	str := stringConstructor()
	return NewCharacter(str)
}

func (Character) isValue() {}

func (Character) Type() Type {
	return TheCharacterType
}

func (v Character) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Character) ToGoValue() any {
	return string(v)
}

func (v Character) String() string {
	return format.String(string(v))
}

// Address

const AddressLength = 8

type Address [AddressLength]byte

var _ Value = Address([8]byte{})

func NewAddress(b [AddressLength]byte) Address {
	return b
}

func NewMeteredAddress(memoryGauge common.MemoryGauge, b [AddressLength]byte) Address {
	common.UseMemory(memoryGauge, common.CadenceAddressValueMemoryUsage)
	return NewAddress(b)
}

func BytesToAddress(b []byte) Address {
	var a Address
	copy(a[AddressLength-len(b):AddressLength], b)
	return a
}

func BytesToMeteredAddress(memoryGauge common.MemoryGauge, b []byte) Address {
	common.UseMemory(memoryGauge, common.CadenceAddressValueMemoryUsage)
	return BytesToAddress(b)
}

func (Address) isValue() {}

func (Address) Type() Type {
	return TheAddressType
}

func (Address) MeteredType(common.MemoryGauge) Type {
	return TheAddressType
}

func (v Address) ToGoValue() any {
	return [AddressLength]byte(v)
}

func (v Address) Bytes() []byte {
	return v[:]
}

func (v Address) String() string {
	return format.Address(common.Address(v))
}

func (v Address) Hex() string {
	return fmt.Sprintf("%x", [AddressLength]byte(v))
}

// Int

type Int struct {
	Value *big.Int
}

var _ Value = Int{}

func NewInt(i int) Int {
	return Int{
		Value: big.NewInt(int64(i)),
	}
}

func NewIntFromBig(i *big.Int) Int {
	return Int{
		Value: i,
	}
}

func NewMeteredIntFromBig(
	memoryGauge common.MemoryGauge,
	memoryUsage common.MemoryUsage,
	bigIntConstructor func() *big.Int,
) Int {
	common.UseMemory(memoryGauge, memoryUsage)
	value := bigIntConstructor()
	return NewIntFromBig(value)
}

func (Int) isValue() {}

func (Int) Type() Type {
	return TheIntType
}

func (v Int) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Int) ToGoValue() any {
	return v.Big()
}

func (v Int) Int() int {
	return int(v.Value.Int64())
}

func (v Int) Big() *big.Int {
	return v.Value
}

func (v Int) ToBigEndianBytes() []byte {
	return interpreter.SignedBigIntToBigEndianBytes(v.Value)
}

func (v Int) String() string {
	return format.BigInt(v.Value)
}

// Int8

type Int8 int8

var _ Value = Int8(0)

var Int8MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Int8(0))))

func NewInt8(v int8) Int8 {
	return Int8(v)
}

func NewMeteredInt8(memoryGauge common.MemoryGauge, v int8) Int8 {
	common.UseMemory(memoryGauge, Int8MemoryUsage)
	return Int8(v)
}

func (Int8) isValue() {}

func (v Int8) ToGoValue() any {
	return int8(v)
}

func (Int8) Type() Type {
	return TheInt8Type
}

func (v Int8) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Int8) ToBigEndianBytes() []byte {
	return []byte{byte(v)}
}

func (v Int8) String() string {
	return format.Int(int64(v))
}

// Int16

type Int16 int16

var _ Value = Int16(0)

var Int16MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Int16(0))))

func NewInt16(v int16) Int16 {
	return Int16(v)
}

func NewMeteredInt16(memoryGauge common.MemoryGauge, v int16) Int16 {
	common.UseMemory(memoryGauge, Int16MemoryUsage)
	return Int16(v)
}

func (Int16) isValue() {}

func (Int16) Type() Type {
	return TheInt16Type
}

func (v Int16) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Int16) ToGoValue() any {
	return int16(v)
}

func (v Int16) ToBigEndianBytes() []byte {
	b := make([]byte, 2)
	binary.BigEndian.PutUint16(b, uint16(v))
	return b
}

func (v Int16) String() string {
	return format.Int(int64(v))
}

// Int32

type Int32 int32

var _ Value = Int32(0)

var Int32MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Int32(0))))

func NewInt32(v int32) Int32 {
	return Int32(v)
}

func NewMeteredInt32(memoryGauge common.MemoryGauge, v int32) Int32 {
	common.UseMemory(memoryGauge, Int32MemoryUsage)
	return Int32(v)
}

func (Int32) isValue() {}

func (Int32) Type() Type {
	return TheInt32Type
}

func (v Int32) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Int32) ToGoValue() any {
	return int32(v)
}

func (v Int32) ToBigEndianBytes() []byte {
	b := make([]byte, 4)
	binary.BigEndian.PutUint32(b, uint32(v))
	return b
}

func (v Int32) String() string {
	return format.Int(int64(v))
}

// Int64

type Int64 int64

var _ Value = Int64(0)

var Int64MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Int64(0))))

func NewInt64(i int64) Int64 {
	return Int64(i)
}

func NewMeteredInt64(memoryGauge common.MemoryGauge, v int64) Int64 {
	common.UseMemory(memoryGauge, Int64MemoryUsage)
	return Int64(v)
}

func (Int64) isValue() {}

func (Int64) Type() Type {
	return TheInt64Type
}

func (v Int64) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Int64) ToGoValue() any {
	return int64(v)
}

func (v Int64) ToBigEndianBytes() []byte {
	b := make([]byte, 8)
	binary.BigEndian.PutUint64(b, uint64(v))
	return b
}

func (v Int64) String() string {
	return format.Int(int64(v))
}

// Int128

type Int128 struct {
	Value *big.Int
}

var _ Value = Int128{}

var Int128MemoryUsage = common.NewCadenceBigIntMemoryUsage(16)

func NewInt128(i int) Int128 {
	return Int128{
		Value: big.NewInt(int64(i)),
	}
}

var int128MinExceededError = errors.NewDefaultUserError("value exceeds min of Int128")
var int128MaxExceededError = errors.NewDefaultUserError("value exceeds max of Int128")

func NewInt128FromBig(i *big.Int) (Int128, error) {
	if i.Cmp(sema.Int128TypeMinIntBig) < 0 {
		return Int128{}, int128MinExceededError
	}
	if i.Cmp(sema.Int128TypeMaxIntBig) > 0 {
		return Int128{}, int128MaxExceededError
	}
	return Int128{Value: i}, nil
}

func NewMeteredInt128FromBig(
	memoryGauge common.MemoryGauge,
	bigIntConstructor func() *big.Int,
) (Int128, error) {
	common.UseMemory(memoryGauge, Int128MemoryUsage)
	value := bigIntConstructor()
	return NewInt128FromBig(value)
}

func (Int128) isValue() {}

func (Int128) Type() Type {
	return TheInt128Type
}

func (v Int128) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Int128) ToGoValue() any {
	return v.Big()
}

func (v Int128) Int() int {
	return int(v.Value.Int64())
}

func (v Int128) Big() *big.Int {
	return v.Value
}

func (v Int128) ToBigEndianBytes() []byte {
	return interpreter.SignedBigIntToBigEndianBytes(v.Value)
}

func (v Int128) String() string {
	return format.BigInt(v.Value)
}

// Int256

type Int256 struct {
	Value *big.Int
}

var _ Value = Int256{}

var Int256MemoryUsage = common.NewCadenceBigIntMemoryUsage(32)

func NewInt256(i int) Int256 {
	return Int256{
		Value: big.NewInt(int64(i)),
	}
}

var int256MinExceededError = errors.NewDefaultUserError("value exceeds min of Int256")
var int256MaxExceededError = errors.NewDefaultUserError("value exceeds max of Int256")

func NewInt256FromBig(i *big.Int) (Int256, error) {
	if i.Cmp(sema.Int256TypeMinIntBig) < 0 {
		return Int256{}, int256MinExceededError
	}
	if i.Cmp(sema.Int256TypeMaxIntBig) > 0 {
		return Int256{}, int256MaxExceededError
	}
	return Int256{Value: i}, nil
}

func NewMeteredInt256FromBig(
	memoryGauge common.MemoryGauge,
	bigIntConstructor func() *big.Int,
) (Int256, error) {
	common.UseMemory(memoryGauge, Int256MemoryUsage)
	value := bigIntConstructor()
	return NewInt256FromBig(value)
}

func (Int256) isValue() {}

func (Int256) Type() Type {
	return TheInt256Type
}

func (v Int256) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Int256) ToGoValue() any {
	return v.Big()
}

func (v Int256) Int() int {
	return int(v.Value.Int64())
}

func (v Int256) Big() *big.Int {
	return v.Value
}

func (v Int256) ToBigEndianBytes() []byte {
	return interpreter.SignedBigIntToBigEndianBytes(v.Value)
}

func (v Int256) String() string {
	return format.BigInt(v.Value)
}

// UInt

type UInt struct {
	Value *big.Int
}

var _ Value = UInt{}

func NewUInt(i uint) UInt {
	return UInt{
		Value: big.NewInt(int64(i)),
	}
}

var uintNegativeError = errors.NewDefaultUserError("invalid negative value for UInt")

func NewUIntFromBig(i *big.Int) (UInt, error) {
	if i.Sign() < 0 {
		return UInt{}, uintNegativeError
	}
	return UInt{Value: i}, nil
}

func NewMeteredUIntFromBig(
	memoryGauge common.MemoryGauge,
	memoryUsage common.MemoryUsage,
	bigIntConstructor func() *big.Int,
) (UInt, error) {
	common.UseMemory(memoryGauge, memoryUsage)
	value := bigIntConstructor()
	return NewUIntFromBig(value)
}

func (UInt) isValue() {}

func (UInt) Type() Type {
	return TheUIntType
}

func (v UInt) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UInt) ToGoValue() any {
	return v.Big()
}

func (v UInt) Int() int {
	return int(v.Value.Uint64())
}

func (v UInt) Big() *big.Int {
	return v.Value
}

func (v UInt) ToBigEndianBytes() []byte {
	return interpreter.UnsignedBigIntToBigEndianBytes(v.Value)
}

func (v UInt) String() string {
	return format.BigInt(v.Value)
}

// UInt8

type UInt8 uint8

var _ Value = UInt8(0)

var UInt8MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(UInt8(0))))

func NewUInt8(v uint8) UInt8 {
	return UInt8(v)
}

func NewMeteredUInt8(gauge common.MemoryGauge, v uint8) UInt8 {
	common.UseMemory(gauge, UInt8MemoryUsage)
	return UInt8(v)
}

func (UInt8) isValue() {}

func (UInt8) Type() Type {
	return TheUInt8Type
}

func (v UInt8) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UInt8) ToGoValue() any {
	return uint8(v)
}

func (v UInt8) ToBigEndianBytes() []byte {
	return []byte{byte(v)}
}

func (v UInt8) String() string {
	return format.Uint(uint64(v))
}

// UInt16

type UInt16 uint16

var _ Value = UInt16(0)

var UInt16MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(UInt16(0))))

func NewUInt16(v uint16) UInt16 {
	return UInt16(v)
}

func NewMeteredUInt16(gauge common.MemoryGauge, v uint16) UInt16 {
	common.UseMemory(gauge, UInt16MemoryUsage)
	return UInt16(v)
}

func (UInt16) isValue() {}

func (UInt16) Type() Type {
	return TheUInt16Type
}

func (v UInt16) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UInt16) ToGoValue() any {
	return uint16(v)
}

func (v UInt16) ToBigEndianBytes() []byte {
	b := make([]byte, 2)
	binary.BigEndian.PutUint16(b, uint16(v))
	return b
}

func (v UInt16) String() string {
	return format.Uint(uint64(v))
}

// UInt32

type UInt32 uint32

var _ Value = UInt32(0)

var UInt32MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(UInt32(0))))

func NewUInt32(v uint32) UInt32 {
	return UInt32(v)
}

func NewMeteredUInt32(gauge common.MemoryGauge, v uint32) UInt32 {
	common.UseMemory(gauge, UInt32MemoryUsage)
	return UInt32(v)
}

func (UInt32) isValue() {}

func (UInt32) Type() Type {
	return TheUInt32Type
}

func (v UInt32) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UInt32) ToGoValue() any {
	return uint32(v)
}

func (v UInt32) ToBigEndianBytes() []byte {
	b := make([]byte, 4)
	binary.BigEndian.PutUint32(b, uint32(v))
	return b
}

func (v UInt32) String() string {
	return format.Uint(uint64(v))
}

// UInt64

type UInt64 uint64

var _ Value = UInt64(0)

var UInt64MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(UInt64(0))))

func NewUInt64(v uint64) UInt64 {
	return UInt64(v)
}

func NewMeteredUInt64(gauge common.MemoryGauge, v uint64) UInt64 {
	common.UseMemory(gauge, UInt64MemoryUsage)
	return UInt64(v)
}

func (UInt64) isValue() {}

func (UInt64) Type() Type {
	return TheUInt64Type
}

func (v UInt64) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UInt64) ToGoValue() any {
	return uint64(v)
}

func (v UInt64) ToBigEndianBytes() []byte {
	b := make([]byte, 8)
	binary.BigEndian.PutUint64(b, uint64(v))
	return b
}

func (v UInt64) String() string {
	return format.Uint(uint64(v))
}

// UInt128

type UInt128 struct {
	Value *big.Int
}

var _ Value = UInt128{}

var UInt128MemoryUsage = common.NewCadenceBigIntMemoryUsage(16)

func NewUInt128(i uint) UInt128 {
	return UInt128{
		Value: big.NewInt(int64(i)),
	}
}

var uint128NegativeError = errors.NewDefaultUserError("invalid negative value for UInt128")
var uint128MaxExceededError = errors.NewDefaultUserError("value exceeds max of UInt128")

func NewUInt128FromBig(i *big.Int) (UInt128, error) {
	if i.Sign() < 0 {
		return UInt128{}, uint128NegativeError
	}
	if i.Cmp(sema.UInt128TypeMaxIntBig) > 0 {
		return UInt128{}, uint128MaxExceededError
	}
	return UInt128{Value: i}, nil
}

func NewMeteredUInt128FromBig(
	memoryGauge common.MemoryGauge,
	bigIntConstructor func() *big.Int,
) (UInt128, error) {
	common.UseMemory(memoryGauge, UInt128MemoryUsage)
	value := bigIntConstructor()
	return NewUInt128FromBig(value)
}

func (UInt128) isValue() {}

func (UInt128) Type() Type {
	return TheUInt128Type
}

func (v UInt128) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UInt128) ToGoValue() any {
	return v.Big()
}

func (v UInt128) Int() int {
	return int(v.Value.Uint64())
}

func (v UInt128) Big() *big.Int {
	return v.Value
}

func (v UInt128) ToBigEndianBytes() []byte {
	return interpreter.UnsignedBigIntToBigEndianBytes(v.Value)
}

func (v UInt128) String() string {
	return format.BigInt(v.Value)
}

// UInt256

type UInt256 struct {
	Value *big.Int
}

var _ Value = UInt256{}

var UInt256MemoryUsage = common.NewCadenceBigIntMemoryUsage(32)

func NewUInt256(i uint) UInt256 {
	return UInt256{
		Value: big.NewInt(int64(i)),
	}
}

var uint256NegativeError = errors.NewDefaultUserError("invalid negative value for UInt256")
var uint256MaxExceededError = errors.NewDefaultUserError("value exceeds max of UInt256")

func NewUInt256FromBig(i *big.Int) (UInt256, error) {
	if i.Sign() < 0 {
		return UInt256{}, uint256NegativeError
	}
	if i.Cmp(sema.UInt256TypeMaxIntBig) > 0 {
		return UInt256{}, uint256MaxExceededError
	}
	return UInt256{Value: i}, nil
}

func NewMeteredUInt256FromBig(
	memoryGauge common.MemoryGauge,
	bigIntConstructor func() *big.Int,
) (UInt256, error) {
	common.UseMemory(memoryGauge, UInt256MemoryUsage)
	value := bigIntConstructor()
	return NewUInt256FromBig(value)
}

func (UInt256) isValue() {}

func (UInt256) Type() Type {
	return TheUInt256Type
}

func (v UInt256) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UInt256) ToGoValue() any {
	return v.Big()
}

func (v UInt256) Int() int {
	return int(v.Value.Uint64())
}

func (v UInt256) Big() *big.Int {
	return v.Value
}

func (v UInt256) ToBigEndianBytes() []byte {
	return interpreter.UnsignedBigIntToBigEndianBytes(v.Value)
}

func (v UInt256) String() string {
	return format.BigInt(v.Value)
}

// Word8

type Word8 uint8

var _ Value = Word8(0)

var word8MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Word8(0))))

func NewWord8(v uint8) Word8 {
	return Word8(v)
}

func NewMeteredWord8(gauge common.MemoryGauge, v uint8) Word8 {
	common.UseMemory(gauge, word8MemoryUsage)
	return Word8(v)
}

func (Word8) isValue() {}

func (Word8) Type() Type {
	return TheWord8Type
}

func (v Word8) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Word8) ToGoValue() any {
	return uint8(v)
}

func (v Word8) ToBigEndianBytes() []byte {
	return []byte{byte(v)}
}

func (v Word8) String() string {
	return format.Uint(uint64(v))
}

// Word16

type Word16 uint16

var _ Value = Word16(0)

var word16MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Word16(0))))

func NewWord16(v uint16) Word16 {
	return Word16(v)
}

func NewMeteredWord16(gauge common.MemoryGauge, v uint16) Word16 {
	common.UseMemory(gauge, word16MemoryUsage)
	return Word16(v)
}

func (Word16) isValue() {}

func (Word16) Type() Type {
	return TheWord16Type
}

func (v Word16) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Word16) ToGoValue() any {
	return uint16(v)
}

func (v Word16) ToBigEndianBytes() []byte {
	b := make([]byte, 2)
	binary.BigEndian.PutUint16(b, uint16(v))
	return b
}

func (v Word16) String() string {
	return format.Uint(uint64(v))
}

// Word32

type Word32 uint32

var _ Value = Word32(0)

var word32MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Word32(0))))

func NewWord32(v uint32) Word32 {
	return Word32(v)
}

func NewMeteredWord32(gauge common.MemoryGauge, v uint32) Word32 {
	common.UseMemory(gauge, word32MemoryUsage)
	return Word32(v)
}

func (Word32) isValue() {}

func (Word32) Type() Type {
	return TheWord32Type
}

func (v Word32) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Word32) ToGoValue() any {
	return uint32(v)
}

func (v Word32) ToBigEndianBytes() []byte {
	b := make([]byte, 4)
	binary.BigEndian.PutUint32(b, uint32(v))
	return b
}

func (v Word32) String() string {
	return format.Uint(uint64(v))
}

// Word64

type Word64 uint64

var _ Value = Word64(0)

var word64MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Word64(0))))

func NewWord64(v uint64) Word64 {
	return Word64(v)
}

func NewMeteredWord64(gauge common.MemoryGauge, v uint64) Word64 {
	common.UseMemory(gauge, word64MemoryUsage)
	return Word64(v)
}

func (Word64) isValue() {}

func (Word64) Type() Type {
	return TheWord64Type
}

func (v Word64) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Word64) ToGoValue() any {
	return uint64(v)
}

func (v Word64) ToBigEndianBytes() []byte {
	b := make([]byte, 8)
	binary.BigEndian.PutUint64(b, uint64(v))
	return b
}

func (v Word64) String() string {
	return format.Uint(uint64(v))
}

// Word128

type Word128 struct {
	Value *big.Int
}

var _ Value = Word128{}

var Word128MemoryUsage = common.NewCadenceBigIntMemoryUsage(16)

func NewWord128(i uint) Word128 {
	return Word128{
		Value: big.NewInt(int64(i)),
	}
}

var word128NegativeError = errors.NewDefaultUserError("invalid negative value for Word128")
var word128MaxExceededError = errors.NewDefaultUserError("value exceeds max of Word128")

func NewWord128FromBig(i *big.Int) (Word128, error) {
	if i.Sign() < 0 {
		return Word128{}, word128NegativeError
	}
	if i.Cmp(sema.Word128TypeMaxIntBig) > 0 {
		return Word128{}, word128MaxExceededError
	}
	return Word128{Value: i}, nil
}

func NewMeteredWord128FromBig(
	memoryGauge common.MemoryGauge,
	bigIntConstructor func() *big.Int,
) (Word128, error) {
	common.UseMemory(memoryGauge, Word128MemoryUsage)
	value := bigIntConstructor()
	return NewWord128FromBig(value)
}

func (Word128) isValue() {}

func (Word128) Type() Type {
	return TheWord128Type
}

func (v Word128) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Word128) ToGoValue() any {
	return v.Big()
}

func (v Word128) Int() int {
	return int(v.Value.Uint64())
}

func (v Word128) Big() *big.Int {
	return v.Value
}

func (v Word128) ToBigEndianBytes() []byte {
	return interpreter.UnsignedBigIntToBigEndianBytes(v.Value)
}

func (v Word128) String() string {
	return format.BigInt(v.Value)
}

// Word256

type Word256 struct {
	Value *big.Int
}

var _ Value = Word256{}

var Word256MemoryUsage = common.NewCadenceBigIntMemoryUsage(32)

func NewWord256(i uint) Word256 {
	return Word256{
		Value: big.NewInt(int64(i)),
	}
}

var word256NegativeError = errors.NewDefaultUserError("invalid negative value for Word256")
var word256MaxExceededError = errors.NewDefaultUserError("value exceeds max of Word256")

func NewWord256FromBig(i *big.Int) (Word256, error) {
	if i.Sign() < 0 {
		return Word256{}, word256NegativeError
	}
	if i.Cmp(sema.Word256TypeMaxIntBig) > 0 {
		return Word256{}, word256MaxExceededError
	}
	return Word256{Value: i}, nil
}

func NewMeteredWord256FromBig(
	memoryGauge common.MemoryGauge,
	bigIntConstructor func() *big.Int,
) (Word256, error) {
	common.UseMemory(memoryGauge, Word256MemoryUsage)
	value := bigIntConstructor()
	return NewWord256FromBig(value)
}

func (Word256) isValue() {}

func (Word256) Type() Type {
	return TheWord256Type
}

func (v Word256) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Word256) ToGoValue() any {
	return v.Big()
}

func (v Word256) Int() int {
	return int(v.Value.Uint64())
}

func (v Word256) Big() *big.Int {
	return v.Value
}

func (v Word256) ToBigEndianBytes() []byte {
	return interpreter.UnsignedBigIntToBigEndianBytes(v.Value)
}

func (v Word256) String() string {
	return format.BigInt(v.Value)
}

// Fix64

type Fix64 int64

var _ Value = Fix64(0)

var fix64MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(Fix64(0))))

func NewFix64(s string) (Fix64, error) {
	v, err := fixedpoint.ParseFix64(s)
	if err != nil {
		return 0, err
	}
	return Fix64(v.Int64()), nil
}

func NewFix64FromParts(negative bool, integer int, fraction uint) (Fix64, error) {
	v, err := fixedpoint.NewFix64(
		negative,
		new(big.Int).SetInt64(int64(integer)),
		new(big.Int).SetInt64(int64(fraction)),
		fixedpoint.Fix64Scale,
	)
	if err != nil {
		return 0, err
	}
	return Fix64(v.Int64()), nil
}

func NewMeteredFix64(gauge common.MemoryGauge, constructor func() (string, error)) (Fix64, error) {
	common.UseMemory(gauge, fix64MemoryUsage)
	value, err := constructor()
	if err != nil {
		return 0, err
	}
	return NewFix64(value)
}

func NewMeteredFix64FromRawFixedPointNumber(gauge common.MemoryGauge, n int64) (Fix64, error) {
	common.UseMemory(gauge, fix64MemoryUsage)
	return Fix64(n), nil
}

func (Fix64) isValue() {}

func (Fix64) Type() Type {
	return TheFix64Type
}

func (v Fix64) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Fix64) ToGoValue() any {
	return int64(v)
}

func (v Fix64) ToBigEndianBytes() []byte {
	b := make([]byte, 8)
	binary.BigEndian.PutUint64(b, uint64(v))
	return b
}

func (v Fix64) String() string {
	return format.Fix64(int64(v))
}

// UFix64

type UFix64 uint64

var _ Value = UFix64(0)

var ufix64MemoryUsage = common.NewCadenceNumberMemoryUsage(int(unsafe.Sizeof(UFix64(0))))

func NewUFix64(s string) (UFix64, error) {
	v, err := fixedpoint.ParseUFix64(s)
	if err != nil {
		return 0, err
	}
	return UFix64(v.Uint64()), nil
}

func NewUFix64FromParts(integer int, fraction uint) (UFix64, error) {
	v, err := fixedpoint.NewUFix64(
		new(big.Int).SetInt64(int64(integer)),
		new(big.Int).SetInt64(int64(fraction)),
		fixedpoint.Fix64Scale,
	)
	if err != nil {
		return 0, err
	}
	return UFix64(v.Uint64()), nil
}

func NewMeteredUFix64(gauge common.MemoryGauge, constructor func() (string, error)) (UFix64, error) {
	common.UseMemory(gauge, ufix64MemoryUsage)
	value, err := constructor()
	if err != nil {
		return 0, err
	}
	return NewUFix64(value)
}

func ParseUFix64(s string) (uint64, error) {
	v, err := fixedpoint.ParseUFix64(s)
	if err != nil {
		return 0, err
	}
	return v.Uint64(), nil
}

func NewMeteredUFix64FromRawFixedPointNumber(gauge common.MemoryGauge, n uint64) (UFix64, error) {
	common.UseMemory(gauge, ufix64MemoryUsage)
	return UFix64(n), nil
}

func (UFix64) isValue() {}

func (UFix64) Type() Type {
	return TheUFix64Type
}

func (v UFix64) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v UFix64) ToGoValue() any {
	return uint64(v)
}

func (v UFix64) ToBigEndianBytes() []byte {
	b := make([]byte, 8)
	binary.BigEndian.PutUint64(b, uint64(v))
	return b
}

func (v UFix64) String() string {
	return format.UFix64(uint64(v))
}

// Array

type Array struct {
	ArrayType ArrayType
	Values    []Value
}

var _ Value = Array{}

func NewArray(values []Value) Array {
	return Array{Values: values}
}

func NewMeteredArray(
	gauge common.MemoryGauge,
	length int,
	constructor func() ([]Value, error),
) (Array, error) {
	baseUse, lengthUse := common.NewCadenceArrayMemoryUsages(length)
	common.UseMemory(gauge, baseUse)
	common.UseMemory(gauge, lengthUse)

	values, err := constructor()
	if err != nil {
		return Array{}, err
	}

	return NewArray(values), nil
}

func (Array) isValue() {}

func (v Array) Type() Type {
	return v.ArrayType
}

func (v Array) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Array) WithType(arrayType ArrayType) Array {
	v.ArrayType = arrayType
	return v
}

func (v Array) ToGoValue() any {
	ret := make([]any, len(v.Values))

	for i, e := range v.Values {
		ret[i] = e.ToGoValue()
	}

	return ret
}

func (v Array) String() string {
	values := make([]string, len(v.Values))
	for i, value := range v.Values {
		values[i] = value.String()
	}
	return format.Array(values)
}

// Dictionary

type Dictionary struct {
	DictionaryType *DictionaryType
	Pairs          []KeyValuePair
}

var _ Value = Dictionary{}

func NewDictionary(pairs []KeyValuePair) Dictionary {
	return Dictionary{Pairs: pairs}
}

func NewMeteredDictionary(
	gauge common.MemoryGauge,
	size int,
	constructor func() ([]KeyValuePair, error),
) (Dictionary, error) {
	common.UseMemory(gauge, common.CadenceDictionaryValueMemoryUsage)

	pairs, err := constructor()
	if err != nil {
		return Dictionary{}, err
	}
	return NewDictionary(pairs), err
}

func (Dictionary) isValue() {}

func (v Dictionary) Type() Type {
	if v.DictionaryType == nil {
		// Return nil Type instead of Type referencing nil *DictionaryType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.DictionaryType
}

func (v Dictionary) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Dictionary) WithType(dictionaryType *DictionaryType) Dictionary {
	v.DictionaryType = dictionaryType
	return v
}

func (v Dictionary) ToGoValue() any {
	ret := map[any]any{}

	for _, p := range v.Pairs {
		ret[p.Key.ToGoValue()] = p.Value.ToGoValue()
	}

	return ret
}

func (v Dictionary) String() string {
	pairs := make([]struct {
		Key   string
		Value string
	}, len(v.Pairs))

	for i, pair := range v.Pairs {
		pairs[i] = struct {
			Key   string
			Value string
		}{
			Key:   pair.Key.String(),
			Value: pair.Value.String(),
		}
	}

	return format.Dictionary(pairs)
}

// KeyValuePair

type KeyValuePair struct {
	Key   Value
	Value Value
}

func NewMeteredKeyValuePair(gauge common.MemoryGauge, key, value Value) KeyValuePair {
	common.UseMemory(gauge, common.CadenceKeyValuePairMemoryUsage)
	return KeyValuePair{
		Key:   key,
		Value: value,
	}
}

// Struct

type Struct struct {
	StructType *StructType
	Fields     []Value
}

var _ Value = Struct{}

func NewStruct(fields []Value) Struct {
	return Struct{Fields: fields}
}

func NewMeteredStruct(
	gauge common.MemoryGauge,
	numberOfFields int,
	constructor func() ([]Value, error),
) (Struct, error) {
	baseUsage, sizeUsage := common.NewCadenceStructMemoryUsages(numberOfFields)
	common.UseMemory(gauge, baseUsage)
	common.UseMemory(gauge, sizeUsage)

	fields, err := constructor()
	if err != nil {
		return Struct{}, err
	}
	return NewStruct(fields), nil
}

func (Struct) isValue() {}

func (v Struct) Type() Type {
	if v.StructType == nil {
		// Return nil Type instead of Type referencing nil *StructType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.StructType
}

func (v Struct) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Struct) WithType(typ *StructType) Struct {
	v.StructType = typ
	return v
}

func (v Struct) ToGoValue() any {
	ret := make([]any, len(v.Fields))

	for i, field := range v.Fields {
		ret[i] = field.ToGoValue()
	}

	return ret
}

func (v Struct) String() string {
	return formatComposite(v.StructType.ID(), v.StructType.Fields, v.Fields)
}

func (v Struct) GetFields() []Field {
	if v.StructType == nil {
		return nil
	}

	return v.StructType.Fields
}

func (v Struct) GetFieldValues() []Value {
	return v.Fields
}

func formatComposite(typeID string, fields []Field, values []Value) string {
	preparedFields := make([]struct {
		Name  string
		Value string
	}, 0, len(fields))
	for i, field := range fields {
		value := values[i]
		preparedFields = append(preparedFields,
			struct {
				Name  string
				Value string
			}{
				Name:  field.Identifier,
				Value: value.String(),
			},
		)
	}

	return format.Composite(typeID, preparedFields)
}

// Resource

type Resource struct {
	ResourceType *ResourceType
	Fields       []Value
}

var _ Value = Resource{}

func NewResource(fields []Value) Resource {
	return Resource{Fields: fields}
}

func NewMeteredResource(
	gauge common.MemoryGauge,
	numberOfFields int,
	constructor func() ([]Value, error),
) (Resource, error) {
	baseUsage, sizeUsage := common.NewCadenceResourceMemoryUsages(numberOfFields)
	common.UseMemory(gauge, baseUsage)
	common.UseMemory(gauge, sizeUsage)
	fields, err := constructor()
	if err != nil {
		return Resource{}, err
	}
	return NewResource(fields), nil
}

func (Resource) isValue() {}

func (v Resource) Type() Type {
	if v.ResourceType == nil {
		// Return nil Type instead of Type referencing nil *ResourceType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.ResourceType
}

func (v Resource) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Resource) WithType(typ *ResourceType) Resource {
	v.ResourceType = typ
	return v
}

func (v Resource) ToGoValue() any {
	ret := make([]any, len(v.Fields))

	for i, field := range v.Fields {
		ret[i] = field.ToGoValue()
	}

	return ret
}

func (v Resource) String() string {
	return formatComposite(v.ResourceType.ID(), v.ResourceType.Fields, v.Fields)
}

func (v Resource) GetFields() []Field {
	if v.ResourceType == nil {
		return nil
	}

	return v.ResourceType.Fields
}

func (v Resource) GetFieldValues() []Value {
	return v.Fields
}

// Attachment

type Attachment struct {
	AttachmentType *AttachmentType
	Fields         []Value
}

var _ Value = Attachment{}

func NewAttachment(fields []Value) Attachment {
	return Attachment{Fields: fields}
}

func NewMeteredAttachment(
	gauge common.MemoryGauge,
	numberOfFields int,
	constructor func() ([]Value, error),
) (Attachment, error) {
	baseUsage, sizeUsage := common.NewCadenceAttachmentMemoryUsages(numberOfFields)
	common.UseMemory(gauge, baseUsage)
	common.UseMemory(gauge, sizeUsage)
	fields, err := constructor()
	if err != nil {
		return Attachment{}, err
	}
	return NewAttachment(fields), nil
}

func (Attachment) isValue() {}

func (v Attachment) Type() Type {
	if v.AttachmentType == nil {
		// Return nil Type instead of Type referencing nil *AttachmentType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.AttachmentType
}

func (v Attachment) MeteredType(_ common.MemoryGauge) Type {
	return v.Type()
}

func (v Attachment) WithType(typ *AttachmentType) Attachment {
	v.AttachmentType = typ
	return v
}

func (v Attachment) ToGoValue() any {
	ret := make([]any, len(v.Fields))

	for i, field := range v.Fields {
		ret[i] = field.ToGoValue()
	}

	return ret
}

func (v Attachment) String() string {
	return formatComposite(v.AttachmentType.ID(), v.AttachmentType.Fields, v.Fields)
}

func (v Attachment) GetFields() []Field {
	if v.AttachmentType == nil {
		return nil
	}

	return v.AttachmentType.Fields
}

func (v Attachment) GetFieldValues() []Value {
	return v.Fields
}

// Event

type Event struct {
	EventType *EventType
	Fields    []Value
}

var _ Value = Event{}

func NewEvent(fields []Value) Event {
	return Event{Fields: fields}
}

func NewMeteredEvent(
	gauge common.MemoryGauge,
	numberOfFields int,
	constructor func() ([]Value, error),
) (Event, error) {
	baseUsage, sizeUsage := common.NewCadenceEventMemoryUsages(numberOfFields)
	common.UseMemory(gauge, baseUsage)
	common.UseMemory(gauge, sizeUsage)
	fields, err := constructor()
	if err != nil {
		return Event{}, err
	}
	return NewEvent(fields), nil
}

func (Event) isValue() {}

func (v Event) Type() Type {
	if v.EventType == nil {
		// Return nil Type instead of Type referencing nil *EventType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.EventType
}

func (v Event) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Event) WithType(typ *EventType) Event {
	v.EventType = typ
	return v
}

func (v Event) ToGoValue() any {
	ret := make([]any, len(v.Fields))

	for i, field := range v.Fields {
		ret[i] = field.ToGoValue()
	}

	return ret
}
func (v Event) String() string {
	return formatComposite(v.EventType.ID(), v.EventType.Fields, v.Fields)
}

func (v Event) GetFields() []Field {
	if v.EventType == nil {
		return nil
	}

	return v.EventType.Fields
}

func (v Event) GetFieldValues() []Value {
	return v.Fields
}

// Contract

type Contract struct {
	ContractType *ContractType
	Fields       []Value
}

var _ Value = Contract{}

func NewContract(fields []Value) Contract {
	return Contract{Fields: fields}
}

func NewMeteredContract(
	gauge common.MemoryGauge,
	numberOfFields int,
	constructor func() ([]Value, error),
) (Contract, error) {
	baseUsage, sizeUsage := common.NewCadenceContractMemoryUsages(numberOfFields)
	common.UseMemory(gauge, baseUsage)
	common.UseMemory(gauge, sizeUsage)
	fields, err := constructor()
	if err != nil {
		return Contract{}, err
	}
	return NewContract(fields), nil
}

func (Contract) isValue() {}

func (v Contract) Type() Type {
	if v.ContractType == nil {
		// Return nil Type instead of Type referencing nil *ContractType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.ContractType
}

func (v Contract) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Contract) WithType(typ *ContractType) Contract {
	v.ContractType = typ
	return v
}

func (v Contract) ToGoValue() any {
	ret := make([]any, len(v.Fields))

	for i, field := range v.Fields {
		ret[i] = field.ToGoValue()
	}

	return ret
}

func (v Contract) String() string {
	return formatComposite(v.ContractType.ID(), v.ContractType.Fields, v.Fields)
}

func (v Contract) GetFields() []Field {
	if v.ContractType == nil {
		return nil
	}

	return v.ContractType.Fields
}

func (v Contract) GetFieldValues() []Value {
	return v.Fields
}

// PathLink

type PathLink struct {
	TargetPath Path
	// TODO: a future version might want to export the whole type
	BorrowType string
}

var _ Value = PathLink{}

func NewPathLink(targetPath Path, borrowType string) PathLink {
	return PathLink{
		TargetPath: targetPath,
		BorrowType: borrowType,
	}
}

func NewMeteredPathLink(gauge common.MemoryGauge, targetPath Path, borrowType string) PathLink {
	common.UseMemory(gauge, common.CadencePathLinkValueMemoryUsage)
	return NewPathLink(targetPath, borrowType)
}

func (PathLink) isValue() {}

func (v PathLink) Type() Type {
	return nil
}

func (v PathLink) MeteredType(_ common.MemoryGauge) Type {
	return v.Type()
}

func (v PathLink) ToGoValue() any {
	return nil
}

func (v PathLink) String() string {
	return format.PathLink(
		v.BorrowType,
		v.TargetPath.String(),
	)
}

// AccountLink

type AccountLink struct{}

var _ Value = AccountLink{}

func NewAccountLink() AccountLink {
	return AccountLink{}
}

func NewMeteredAccountLink(gauge common.MemoryGauge) AccountLink {
	common.UseMemory(gauge, common.CadenceAccountLinkValueMemoryUsage)
	return NewAccountLink()
}

func (AccountLink) isValue() {}

func (v AccountLink) Type() Type {
	return nil
}

func (v AccountLink) MeteredType(_ common.MemoryGauge) Type {
	return v.Type()
}

func (v AccountLink) ToGoValue() any {
	return nil
}

func (v AccountLink) String() string {
	return format.AccountLink
}

// Path

type Path struct {
	Domain     common.PathDomain
	Identifier string
}

var _ Value = Path{}

func NewPath(domain common.PathDomain, identifier string) (Path, error) {
	if domain == common.PathDomainUnknown {
		return Path{}, errors.NewDefaultUserError("unknown domain in path")
	}

	return Path{
		Domain:     domain,
		Identifier: identifier,
	}, nil
}

func NewMeteredPath(gauge common.MemoryGauge, domain common.PathDomain, identifier string) (Path, error) {
	common.UseMemory(gauge, common.CadencePathValueMemoryUsage)
	return NewPath(domain, identifier)
}

func (Path) isValue() {}

func (v Path) Type() Type {
	switch v.Domain {
	case common.PathDomainStorage:
		return TheStoragePathType
	case common.PathDomainPrivate:
		return ThePrivatePathType
	case common.PathDomainPublic:
		return ThePublicPathType
	}

	panic(errors.NewUnreachableError())
}

func (v Path) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (Path) ToGoValue() any {
	return nil
}

func (v Path) String() string {
	return format.Path(
		v.Domain.Identifier(),
		v.Identifier,
	)
}

// TypeValue

type TypeValue struct {
	StaticType Type
}

var _ Value = TypeValue{}

func NewTypeValue(staticType Type) TypeValue {
	return TypeValue{
		StaticType: staticType,
	}
}

func NewMeteredTypeValue(gauge common.MemoryGauge, staticType Type) TypeValue {
	common.UseMemory(gauge, common.CadenceTypeValueMemoryUsage)
	return NewTypeValue(staticType)
}

func (TypeValue) isValue() {}

func (TypeValue) Type() Type {
	return TheMetaType
}

func (v TypeValue) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (TypeValue) ToGoValue() any {
	return nil
}

func (v TypeValue) String() string {
	return format.TypeValue(v.StaticType.ID())
}

// Capability

type Capability interface {
	Value
	isCapability()
}

// PathCapability

type PathCapability struct {
	BorrowType Type
	Path       Path
	Address    Address
}

var _ Value = PathCapability{}
var _ Capability = PathCapability{}

func NewPathCapability(
	address Address,
	path Path,
	borrowType Type,
) PathCapability {
	return PathCapability{
		Path:       path,
		Address:    address,
		BorrowType: borrowType,
	}
}

func NewMeteredPathCapability(
	gauge common.MemoryGauge,
	address Address,
	path Path,
	borrowType Type,
) PathCapability {
	common.UseMemory(gauge, common.CadencePathCapabilityValueMemoryUsage)
	return NewPathCapability(
		address,
		path,
		borrowType,
	)
}

func (PathCapability) isValue() {}

func (PathCapability) isCapability() {}

func (v PathCapability) Type() Type {
	return NewCapabilityType(v.BorrowType)
}

func (v PathCapability) MeteredType(gauge common.MemoryGauge) Type {
	return NewMeteredCapabilityType(gauge, v.BorrowType)
}

func (PathCapability) ToGoValue() any {
	return nil
}

func (v PathCapability) String() string {
	var borrowType string
	if v.BorrowType != nil {
		borrowType = v.BorrowType.ID()
	}

	return format.PathCapability(
		borrowType,
		v.Address.String(),
		v.Path.String(),
	)
}

// IDCapability

type IDCapability struct {
	BorrowType Type
	Address    Address
	ID         UInt64
}

var _ Value = IDCapability{}
var _ Capability = IDCapability{}

func NewIDCapability(
	id UInt64,
	address Address,
	borrowType Type,
) IDCapability {
	return IDCapability{
		ID:         id,
		Address:    address,
		BorrowType: borrowType,
	}
}

func NewMeteredIDCapability(
	gauge common.MemoryGauge,
	id UInt64,
	address Address,
	borrowType Type,
) IDCapability {
	common.UseMemory(gauge, common.CadenceIDCapabilityValueMemoryUsage)
	return NewIDCapability(
		id,
		address,
		borrowType,
	)
}

func (IDCapability) isValue() {}

func (IDCapability) isCapability() {}

func (v IDCapability) Type() Type {
	return NewCapabilityType(v.BorrowType)
}

func (v IDCapability) MeteredType(gauge common.MemoryGauge) Type {
	return NewMeteredCapabilityType(gauge, v.BorrowType)
}

func (IDCapability) ToGoValue() any {
	return nil
}

func (v IDCapability) String() string {
	return format.IDCapability(
		v.BorrowType.ID(),
		v.Address.String(),
		v.ID.String(),
	)
}

// Enum
type Enum struct {
	EnumType *EnumType
	Fields   []Value
}

var _ Value = Enum{}

func NewEnum(fields []Value) Enum {
	return Enum{Fields: fields}
}

func NewMeteredEnum(
	gauge common.MemoryGauge,
	numberOfFields int,
	constructor func() ([]Value, error),
) (Enum, error) {
	baseUsage, sizeUsage := common.NewCadenceEnumMemoryUsages(numberOfFields)
	common.UseMemory(gauge, baseUsage)
	common.UseMemory(gauge, sizeUsage)
	fields, err := constructor()
	if err != nil {
		return Enum{}, err
	}
	return NewEnum(fields), nil
}

func (Enum) isValue() {}

func (v Enum) Type() Type {
	if v.EnumType == nil {
		// Return nil Type instead of Type referencing nil *EnumType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.EnumType
}

func (v Enum) MeteredType(common.MemoryGauge) Type {
	return v.Type()
}

func (v Enum) WithType(typ *EnumType) Enum {
	v.EnumType = typ
	return v
}

func (v Enum) ToGoValue() any {
	ret := make([]any, len(v.Fields))

	for i, field := range v.Fields {
		ret[i] = field.ToGoValue()
	}

	return ret
}

func (v Enum) String() string {
	return formatComposite(v.EnumType.ID(), v.EnumType.Fields, v.Fields)
}

func (v Enum) GetFields() []Field {
	if v.EnumType == nil {
		return nil
	}

	return v.EnumType.Fields
}

func (v Enum) GetFieldValues() []Value {
	return v.Fields
}

// Function
type Function struct {
	FunctionType *FunctionType
}

var _ Value = Function{}

func NewFunction(functionType *FunctionType) Function {
	return Function{
		FunctionType: functionType,
	}
}

func NewMeteredFunction(gauge common.MemoryGauge, functionType *FunctionType) Function {
	common.UseMemory(gauge, common.CadenceFunctionValueMemoryUsage)
	return NewFunction(functionType)
}

func (Function) isValue() {}

func (v Function) Type() Type {
	if v.FunctionType == nil {
		// Return nil Type instead of Type referencing nil *FunctionType,
		// so caller can check if v's type is nil and also prevent nil pointer dereference.
		return nil
	}
	return v.FunctionType
}

func (v Function) MeteredType(common.MemoryGauge) Type {
	return v.FunctionType
}

func (Function) ToGoValue() any {
	return nil
}

func (v Function) String() string {
	// TODO: include function type
	return format.Function("(...)")
}

// ValueWithCachedTypeID recursively caches type ID of value v's type.
// This is needed because each type ID is lazily cached on
// its first use in ID() to avoid performance penalty.
func ValueWithCachedTypeID[T Value](value T) T {
	var v Value = value

	if v == nil {
		return value
	}

	TypeWithCachedTypeID(value.Type())

	switch v := v.(type) {

	case TypeValue:
		TypeWithCachedTypeID(v.StaticType)

	case Optional:
		ValueWithCachedTypeID(v.Value)

	case Array:
		for _, v := range v.Values {
			ValueWithCachedTypeID(v)
		}

	case Dictionary:
		for _, p := range v.Pairs {
			ValueWithCachedTypeID(p.Key)
			ValueWithCachedTypeID(p.Value)
		}

	case Struct:
		for _, f := range v.Fields {
			ValueWithCachedTypeID(f)
		}

	case Resource:
		for _, f := range v.Fields {
			ValueWithCachedTypeID(f)
		}

	case Event:
		for _, f := range v.Fields {
			ValueWithCachedTypeID(f)
		}

	case Contract:
		for _, f := range v.Fields {
			ValueWithCachedTypeID(f)
		}

	case Enum:
		for _, f := range v.Fields {
			ValueWithCachedTypeID(f)
		}
	}

	return value
}