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pub mod protobuf {
use crate::include_proto;
include_proto!("google.protobuf.rs");
// source: https://github.com/tokio-rs/prost/blob/master/prost-types/src/lib.rs
use core::convert::TryFrom;
use core::i32;
use core::i64;
use core::time;
// The Protobuf `Duration` and `Timestamp` types can't delegate to the standard library equivalents
// because the Protobuf versions are signed. To make them easier to work with, `From` conversions
// are defined in both directions.
const NANOS_PER_SECOND: i32 = 1_000_000_000;
const NANOS_MAX: i32 = NANOS_PER_SECOND - 1;
impl Duration {
/// Normalizes the duration to a canonical format.
pub fn normalize(&mut self) {
// Make sure nanos is in the range.
if self.nanos <= -NANOS_PER_SECOND || self.nanos >= NANOS_PER_SECOND {
if let Some(seconds) = self
.seconds
.checked_add((self.nanos / NANOS_PER_SECOND) as i64)
{
self.seconds = seconds;
self.nanos %= NANOS_PER_SECOND;
} else if self.nanos < 0 {
// Negative overflow! Set to the least normal value.
self.seconds = i64::MIN;
self.nanos = -NANOS_MAX;
} else {
// Positive overflow! Set to the greatest normal value.
self.seconds = i64::MAX;
self.nanos = NANOS_MAX;
}
}
// nanos should have the same sign as seconds.
if self.seconds < 0 && self.nanos > 0 {
if let Some(seconds) = self.seconds.checked_add(1) {
self.seconds = seconds;
self.nanos -= NANOS_PER_SECOND;
} else {
// Positive overflow! Set to the greatest normal value.
debug_assert_eq!(self.seconds, i64::MAX);
self.nanos = NANOS_MAX;
}
} else if self.seconds > 0 && self.nanos < 0 {
if let Some(seconds) = self.seconds.checked_sub(1) {
self.seconds = seconds;
self.nanos += NANOS_PER_SECOND;
} else {
// Negative overflow! Set to the least normal value.
debug_assert_eq!(self.seconds, i64::MIN);
self.nanos = -NANOS_MAX;
}
}
}
}
/// Converts a `std::time::Duration` to a `Duration`.
impl From<time::Duration> for Duration {
fn from(duration: time::Duration) -> Duration {
let seconds = duration.as_secs();
let seconds = if seconds > i64::MAX as u64 {
i64::MAX
} else {
seconds as i64
};
let nanos = duration.subsec_nanos();
let nanos = if nanos > i32::MAX as u32 {
i32::MAX
} else {
nanos as i32
};
let mut duration = Duration { seconds, nanos };
duration.normalize();
duration
}
}
impl TryFrom<Duration> for time::Duration {
type Error = time::Duration;
/// Converts a `Duration` to a result containing a positive (`Ok`) or negative (`Err`)
/// `std::time::Duration`.
fn try_from(mut duration: Duration) -> Result<time::Duration, time::Duration> {
duration.normalize();
if duration.seconds >= 0 {
Ok(time::Duration::new(
duration.seconds as u64,
duration.nanos as u32,
))
} else {
Err(time::Duration::new(
(-duration.seconds) as u64,
(-duration.nanos) as u32,
))
}
}
}
impl Timestamp {
/// Normalizes the timestamp to a canonical format.
#[cfg(feature = "std")]
pub fn normalize(&mut self) {
// Make sure nanos is in the range.
if self.nanos <= -NANOS_PER_SECOND || self.nanos >= NANOS_PER_SECOND {
if let Some(seconds) = self
.seconds
.checked_add((self.nanos / NANOS_PER_SECOND) as i64)
{
self.seconds = seconds;
self.nanos %= NANOS_PER_SECOND;
} else if self.nanos < 0 {
// Negative overflow! Set to the earliest normal value.
self.seconds = i64::MIN;
self.nanos = 0;
} else {
// Positive overflow! Set to the latest normal value.
self.seconds = i64::MAX;
self.nanos = 999_999_999;
}
}
// For Timestamp nanos should be in the range [0, 999999999].
if self.nanos < 0 {
if let Some(seconds) = self.seconds.checked_sub(1) {
self.seconds = seconds;
self.nanos += NANOS_PER_SECOND;
} else {
// Negative overflow! Set to the earliest normal value.
debug_assert_eq!(self.seconds, i64::MIN);
self.nanos = 0;
}
}
}
}
/// Implements the unstable/naive version of `Eq`: a basic equality check on the internal fields of the `Timestamp`.
/// This implies that `normalized_ts != non_normalized_ts` even if `normalized_ts == non_normalized_ts.normalized()`.
#[cfg(feature = "std")]
impl Eq for Timestamp {}
#[cfg(feature = "std")]
#[allow(clippy::derived_hash_with_manual_eq)] // Derived logic is correct: comparing the 2 fields for equality
impl std::hash::Hash for Timestamp {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
self.seconds.hash(state);
self.nanos.hash(state);
}
}
#[cfg(feature = "std")]
impl From<std::time::SystemTime> for Timestamp {
fn from(system_time: std::time::SystemTime) -> Timestamp {
let (seconds, nanos) = match system_time.duration_since(std::time::UNIX_EPOCH) {
Ok(duration) => {
let seconds = i64::try_from(duration.as_secs()).unwrap();
(seconds, duration.subsec_nanos() as i32)
}
Err(error) => {
let duration = error.duration();
let seconds = i64::try_from(duration.as_secs()).unwrap();
let nanos = duration.subsec_nanos() as i32;
if nanos == 0 {
(-seconds, 0)
} else {
(-seconds - 1, 1_000_000_000 - nanos)
}
}
};
Timestamp { seconds, nanos }
}
}
/// Indicates that a [`Timestamp`] could not be converted to
/// [`SystemTime`][std::time::SystemTime] because it is out of range.
///
/// The range of times that can be represented by `SystemTime` depends on the platform.
/// All `Timestamp`s are likely representable on 64-bit Unix-like platforms, but
/// other platforms, such as Windows and 32-bit Linux, may not be able to represent
/// the full range of `Timestamp`s.
#[cfg(feature = "std")]
#[derive(Debug)]
#[non_exhaustive]
pub struct TimestampOutOfSystemRangeError {
pub timestamp: Timestamp,
}
#[cfg(feature = "std")]
impl core::fmt::Display for TimestampOutOfSystemRangeError {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
write!(
f,
"{self:?} is not representable as a `SystemTime` because it is out of range"
)
}
}
#[cfg(feature = "std")]
impl std::error::Error for TimestampOutOfSystemRangeError {}
#[cfg(feature = "std")]
impl TryFrom<Timestamp> for std::time::SystemTime {
type Error = TimestampOutOfSystemRangeError;
fn try_from(mut timestamp: Timestamp) -> Result<std::time::SystemTime, Self::Error> {
let orig_timestamp = timestamp.clone();
timestamp.normalize();
let system_time = if timestamp.seconds >= 0 {
std::time::UNIX_EPOCH
.checked_add(time::Duration::from_secs(timestamp.seconds as u64))
} else {
std::time::UNIX_EPOCH
.checked_sub(time::Duration::from_secs((-timestamp.seconds) as u64))
};
let system_time = system_time.and_then(|system_time| {
system_time.checked_add(time::Duration::from_nanos(timestamp.nanos as u64))
});
system_time.ok_or(TimestampOutOfSystemRangeError {
timestamp: orig_timestamp,
})
}
}
#[cfg(any(feature = "borsh", feature = "parity-scale-codec"))]
mod sealed {
use super::Any;
use alloc::string::String;
use alloc::vec::Vec;
#[cfg_attr(
feature = "parity-scale-codec",
derive(
parity_scale_codec::Encode,
parity_scale_codec::Decode,
scale_info::TypeInfo
)
)]
#[cfg_attr(
feature = "borsh",
derive(borsh::BorshSerialize, borsh::BorshDeserialize)
)]
struct InnerAny {
pub type_url: String,
pub value: Vec<u8>,
}
#[cfg(feature = "borsh")]
impl borsh::BorshSerialize for Any {
fn serialize<W: borsh::maybestd::io::Write>(
&self,
writer: &mut W,
) -> borsh::maybestd::io::Result<()> {
let inner_any = InnerAny {
type_url: self.type_url.clone(),
value: self.value.clone(),
};
borsh::BorshSerialize::serialize(&inner_any, writer)
}
}
#[cfg(feature = "borsh")]
impl borsh::BorshDeserialize for Any {
fn deserialize_reader<R: borsh::maybestd::io::Read>(
reader: &mut R,
) -> borsh::maybestd::io::Result<Self> {
let inner_any = InnerAny::deserialize_reader(reader)?;
Ok(Any {
type_url: inner_any.type_url,
value: inner_any.value,
})
}
}
#[cfg(feature = "parity-scale-codec")]
impl parity_scale_codec::Encode for Any {
fn encode_to<T: parity_scale_codec::Output + ?Sized>(&self, writer: &mut T) {
let inner_any = InnerAny {
type_url: self.type_url.clone(),
value: self.value.clone(),
};
inner_any.encode_to(writer);
}
}
#[cfg(feature = "parity-scale-codec")]
impl parity_scale_codec::Decode for Any {
fn decode<I: parity_scale_codec::Input>(
input: &mut I,
) -> Result<Self, parity_scale_codec::Error> {
let inner_any = InnerAny::decode(input)?;
Ok(Any {
type_url: inner_any.type_url.clone(),
value: inner_any.value,
})
}
}
#[cfg(feature = "parity-scale-codec")]
impl scale_info::TypeInfo for Any {
type Identity = Self;
fn type_info() -> scale_info::Type {
scale_info::Type::builder()
.path(scale_info::Path::new("Any", "ibc_proto::google::protobuf"))
// i128 is chosen before we represent the timestamp is nanoseconds, which is represented as a i128 by Time
.composite(
scale_info::build::Fields::named()
.field(|f| f.ty::<String>().name("type_url").type_name("String"))
.field(|f| f.ty::<Vec<u8>>().name("value").type_name("Vec<u8>")),
)
}
}
}
}