/build/source/nativelink-error/src/lib.rs

Source
// Copyright 2024 The NativeLink Authors. All rights reserved.
//
// Licensed under the Functional Source License, Version 1.1, Apache 2.0 Future License (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    See LICENSE file for details
//
// 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.

use core::convert::Into;
use std::sync::{MutexGuard, PoisonError};

use nativelink_metric::{
    MetricFieldData, MetricKind, MetricPublishKnownKindData, MetricsComponent,
};
use prost_types::TimestampError;
use serde::{Deserialize, Serialize};
// Reexport of tonic's error codes which we use as "nativelink_error::Code".
pub use tonic::Code;

#[macro_export]
macro_rules! make_err {
    ($code:expr, $($arg:tt)+) => {{
        $crate::Error::new(
            $code,
            format!("{}", format_args!($($arg)+)),
        )
    }};
}

#[macro_export]
macro_rules! make_input_err {
    ($($arg:tt)+) => {{
        $crate::make_err!($crate::Code::InvalidArgument, $($arg)+)
    }};
}

#[macro_export]
macro_rules! error_if {
    ($cond:expr, $($arg:tt)+) => {{
        if $cond {
            Err($crate::make_err!($crate::Code::InvalidArgument, $($arg)+))?;
        }
    }};
}

#[derive(Debug, Eq, PartialEq, Clone, Serialize, Deserialize)]
pub struct Error {
    #[serde(with = "CodeDef")]
    pub code: Code,
    pub messages: Vec<String>,
}

impl MetricsComponent for Error {
    fn publish(
        &self,
        kind: MetricKind,
        field_metadata: MetricFieldData,
    ) -> Result<MetricPublishKnownKindData, nativelink_metric::Error> {
        self.to_string().publish(kind, field_metadata)
    }
}

impl Error {
    #[must_use]
    pub const fn new_with_messages(code: Code, messages: Vec<String>) -> Self {
        Self { code, messages }
    }

    #[must_use]
    pub fn new(code: Code, msg: String) -> Self {
        if msg.is_empty() {
            Self::new_with_messages(code, vec![])
        } else {
            Self::new_with_messages(code, vec![msg])
        }
    }

    #[inline]
    #[must_use]
    pub fn append<S: Into<String>>(mut self, msg: S) -> Self {
        self.messages.push(msg.into());
        self
    }

    #[must_use]
    pub fn merge<E: Into<Self>>(mut self, other: E) -> Self {
        let mut other: Self = other.into();
        // This will help with knowing which messages are tied to different errors.
        self.messages.push("---".to_string());
        self.messages.append(&mut other.messages);
        self
    }

    #[must_use]
    pub fn merge_option<T: Into<Self>, U: Into<Self>>(
        this: Option<T>,
        other: Option<U>,
    ) -> Option<Self> {
        if let Some(this4) = this {
            if let Some(other0) = other {
                return Some(this.into().merge(other));
            }
            return Some(this.into());
        }
        other.map(Into::into)
    }

    #[must_use]
    pub fn to_std_err(self) -> std::io::Error {
        std::io::Error::new(self.code.into_error_kind(), self.messages.join(" : "))
    }

    #[must_use]
    pub fn message_string(&self) -> String {
        self.messages.join(" : ")
    }
}

impl core::error::Error for Error {}

impl From<Error> for nativelink_proto::google::rpc::Status {
    fn from(val: Error) -> Self {
        Self {
            code: val.code as i32,
            message: val.message_string(),
            details: vec![],
        }
    }
}

impl From<nativelink_proto::google::rpc::Status> for Error {
    fn from(val: nativelink_proto::google::rpc::Status) -> Self {
        Self {
            code: val.code.into(),
            messages: vec![val.message],
        }
    }
}

impl core::fmt::Display for Error {
    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
        // A manual impl to reduce the noise of frequently empty fields.
        let mut builder = f.debug_struct("Error");

        builder.field("code", &self.code);

        if !self.messages.is_empty() {
            builder.field("messages", &self.messages);
        }0

        builder.finish()
    }
}

impl From<prost::DecodeError> for Error {
    fn from(err: prost::DecodeError) -> Self {
        make_err!(Code::Internal, "{}", err.to_string())
    }
}

impl From<prost::EncodeError> for Error {
    fn from(err: prost::EncodeError) -> Self {
        make_err!(Code::Internal, "{}", err.to_string())
    }
}

impl From<prost::UnknownEnumValue> for Error {
    fn from(err: prost::UnknownEnumValue) -> Self {
        make_err!(Code::Internal, "{}", err.to_string())
    }
}

impl From<core::num::TryFromIntError> for Error {
    fn from(err: core::num::TryFromIntError) -> Self {
        make_err!(Code::InvalidArgument, "{}", err.to_string())
    }
}

impl From<tokio::task::JoinError> for Error {
    fn from(err: tokio::task::JoinError) -> Self {
        make_err!(Code::Internal, "{}", err.to_string())
    }
}

impl<T> From<PoisonError<MutexGuard<'_, T>>> for Error {
    fn from(err: PoisonError<MutexGuard<'_, T>>) -> Self {
        make_err!(Code::Internal, "{}", err.to_string())
    }
}

impl From<serde_json5::Error> for Error {
    fn from(err: serde_json5::Error) -> Self {
        match err {
            serde_json5::Error::Message { msg, location } => {
                if let Some(has_location) = location {
                    make_err!(
                        Code::Internal,
                        "line {}, column {} - {}",
                        has_location.line,
                        has_location.column,
                        msg
                    )
                } else {
                    make_err!(Code::Internal, "{}", msg)
                }
            }
        }
    }
}

impl From<core::num::ParseIntError> for Error {
    fn from(err: core::num::ParseIntError) -> Self {
        make_err!(Code::InvalidArgument, "{}", err.to_string())
    }
}

impl From<core::convert::Infallible> for Error {
    fn from(_err: core::convert::Infallible) -> Self {
        // Infallible is an error type that can never happen.
        unreachable!();
    }
}

impl From<TimestampError> for Error {
    fn from(err: TimestampError) -> Self {
        make_err!(Code::InvalidArgument, "{}", err)
    }
}

impl From<std::io::Error> for Error {
    fn from(err: std::io::Error) -> Self {
        Self {
            code: err.kind().into_code(),
            messages: vec![err.to_string()],
        }
    }
}

impl From<fred::error::Error> for Error {
    fn from(error: fred::error::Error) -> Self {
        use fred::error::ErrorKind::{
            Auth, Backpressure, Canceled, Cluster, Config, IO, InvalidArgument, InvalidCommand,
            NotFound, Parse, Protocol, Routing, Sentinel, Timeout, Tls, Unknown, Url,
        };

        // Conversions here are based on https://grpc.github.io/grpc/core/md_doc_statuscodes.html.
        let code = match error.kind() {
            Config | InvalidCommand | InvalidArgument | Url => Code::InvalidArgument,
            IO | Protocol | Tls | Cluster | Parse | Sentinel | Routing => Code::Internal,
            Auth => Code::PermissionDenied,
            Canceled => Code::Aborted,
            Unknown => Code::Unknown,
            Timeout => Code::DeadlineExceeded,
            NotFound => Code::NotFound,
            Backpressure => Code::Unavailable,
        };

        make_err!(code, "{error}")
    }
}

impl From<tonic::Status> for Error {
    fn from(status: tonic::Status) -> Self {
        make_err!(status.code(), "{}", status.to_string())
    }
}

impl From<Error> for tonic::Status {
    fn from(val: Error) -> Self {
        Self::new(val.code, val.messages.join(" : "))
    }
}

impl From<walkdir::Error> for Error {
    fn from(value: walkdir::Error) -> Self {
        Self::new(Code::Internal, value.to_string())
    }
}

pub trait ResultExt<T> {
    /// # Errors
    ///
    /// Will return `Err` if we can't convert the error.
    fn err_tip_with_code<F, S>(self, tip_fn: F) -> Result<T, Error>
    where
        Self: Sized,
        S: ToString,
        F: (FnOnce(&Error) -> (Code, S)) + Sized;

    /// # Errors
    ///
    /// Will return `Err` if we can't convert the error.
    #[inline]
    fn err_tip<F, S>(self, tip_fn: F) -> Result<T, Error>
    where
        Self: Sized,
        S: ToString,
        F: (FnOnce() -> S) + Sized,
    {
        self.err_tip_with_code(|e| (e.code119, tip_fn()119))
    }

    /// # Errors
    ///
    /// Will return `Err` if we can't merge the errors.
    fn merge<U>(self, _other: Result<U, Error>) -> Result<U, Error>
    where
        Self: Sized,
    {
        unreachable!();
    }
}

impl<T, E: Into<Error>> ResultExt<T> for Result<T, E> {
    #[inline]
    fn err_tip_with_code<F, S>(self, tip_fn: F) -> Result<T, Error>
    where
        Self: Sized,
        S: ToString,
        F: (FnOnce(&Error) -> (Code, S)) + Sized,
    {
        self.map_err(|e| {108
            let mut error: Error = e.into();
            let (code, message) = tip_fn(&error);
            error.code = code;
            error.messages.push(message.to_string());
            error
        })
    }

    fn merge<U>(self, other: Result<U, Error>) -> Result<U, Error>
    where
        Self: Sized,
    {
        if let Err(e19) = self {
            let mut e: Error = e.into();
            if let Err(other_err17) = other {
                let mut other_err: Error = other_err;
                // This will help with knowing which messages are tied to different errors.
                e.messages.push("---".to_string());
                e.messages.append(&mut other_err.messages);
            }2
            return Err(e);
        }
        other
    }
}

impl<T> ResultExt<T> for Option<T> {
    #[inline]
    fn err_tip_with_code<F, S>(self, tip_fn: F) -> Result<T, Error>
    where
        Self: Sized,
        S: ToString,
        F: (FnOnce(&Error) -> (Code, S)) + Sized,
    {
        self.ok_or_else(|| {18
            let mut error = Error {
                code: Code::Internal,
                messages: vec![],
            };
            let (code, message) = tip_fn(&error);
            error.code = code;
            error.messages.push(message.to_string());
            error
        })
    }
}

trait CodeExt {
    fn into_error_kind(self) -> std::io::ErrorKind;
}

impl CodeExt for Code {
    fn into_error_kind(self) -> std::io::ErrorKind {
        match self {
            Self::Aborted => std::io::ErrorKind::Interrupted,
            Self::AlreadyExists => std::io::ErrorKind::AlreadyExists,
            Self::DeadlineExceeded => std::io::ErrorKind::TimedOut,
            Self::InvalidArgument => std::io::ErrorKind::InvalidInput,
            Self::NotFound => std::io::ErrorKind::NotFound,
            Self::PermissionDenied => std::io::ErrorKind::PermissionDenied,
            Self::Unavailable => std::io::ErrorKind::ConnectionRefused,
            _ => std::io::ErrorKind::Other,
        }
    }
}

trait ErrorKindExt {
    fn into_code(self) -> Code;
}

impl ErrorKindExt for std::io::ErrorKind {
    fn into_code(self) -> Code {
        match self {
            Self::NotFound => Code::NotFound,
            Self::PermissionDenied => Code::PermissionDenied,
            Self::ConnectionRefused | Self::ConnectionReset | Self::ConnectionAborted => {
                Code::Unavailable
            }
            Self::AlreadyExists => Code::AlreadyExists,
            Self::InvalidInput | Self::InvalidData => Code::InvalidArgument,
            Self::TimedOut => Code::DeadlineExceeded,
            Self::Interrupted => Code::Aborted,
            Self::NotConnected
            | Self::AddrInUse
            | Self::AddrNotAvailable
            | Self::BrokenPipe
            | Self::WouldBlock
            | Self::WriteZero
            | Self::Other
            | Self::UnexpectedEof => Code::Internal,
            _ => Code::Unknown,
        }
    }
}

// Serde definition for tonic::Code. See: https://serde.rs/remote-derive.html
#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
#[serde(remote = "Code")]
pub enum CodeDef {
    Ok = 0,
    Cancelled = 1,
    Unknown = 2,
    InvalidArgument = 3,
    DeadlineExceeded = 4,
    NotFound = 5,
    AlreadyExists = 6,
    PermissionDenied = 7,
    ResourceExhausted = 8,
    FailedPrecondition = 9,
    Aborted = 10,
    OutOfRange = 11,
    Unimplemented = 12,
    Internal = 13,
    Unavailable = 14,
    DataLoss = 15,
    Unauthenticated = 16,
    // NOTE: Additional codes must be added to stores.rs in ErrorCodes and also
    // in both match statements in retry.rs.
}

Coverage Report

Created: 2025-10-20 10:50

Line	Count	Source
1		// Copyright 2024 The NativeLink Authors. All rights reserved.
2		//
3		// Licensed under the Functional Source License, Version 1.1, Apache 2.0 Future License (the "License");
4		// you may not use this file except in compliance with the License.
5		// You may obtain a copy of the License at
6		//
7		// See LICENSE file for details
8		//
9		// Unless required by applicable law or agreed to in writing, software
10		// distributed under the License is distributed on an "AS IS" BASIS,
11		// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12		// See the License for the specific language governing permissions and
13		// limitations under the License.
14
15		use core::convert::Into;
16		use std::sync::{MutexGuard, PoisonError};
17
18		use nativelink_metric::{
19		MetricFieldData, MetricKind, MetricPublishKnownKindData, MetricsComponent,
20		};
21		use prost_types::TimestampError;
22		use serde::{Deserialize, Serialize};
23		// Reexport of tonic's error codes which we use as "nativelink_error::Code".
24		pub use tonic::Code;
25
26		#[macro_export]
27		macro_rules! make_err {
28		($code:expr, $($arg:tt)+) => {{
29		$crate::Error::new(
30		$code,
31		format!("{}", format_args!($($arg)+)),
32		)
33		}};
34		}
35
36		#[macro_export]
37		macro_rules! make_input_err {
38		($($arg:tt)+) => {{
39		$crate::make_err!($crate::Code::InvalidArgument, $($arg)+)
40		}};
41		}
42
43		#[macro_export]
44		macro_rules! error_if {
45		($cond:expr, $($arg:tt)+) => {{
46		if $cond {
47		Err($crate::make_err!($crate::Code::InvalidArgument, $($arg)+))?;
48		}
49		}};
50		}
51
52		#[derive(Debug, Eq, PartialEq, Clone, Serialize, Deserialize)]
53		pub struct Error {
54		#[serde(with = "CodeDef")]
55		pub code: Code,
56		pub messages: Vec<String>,
57		}
58
59		impl MetricsComponent for Error {
60	0	fn publish(
61	0	&self,
62	0	kind: MetricKind,
63	0	field_metadata: MetricFieldData,
64	0	) -> Result<MetricPublishKnownKindData, nativelink_metric::Error> {
65	0	self.to_string().publish(kind, field_metadata)
66	0	}
67		}
68
69		impl Error {
70		#[must_use]
71	173	pub const fn new_with_messages(code: Code, messages: Vec<String>) -> Self {
72	173	Self { code, messages }
73	173	}
74
75		#[must_use]
76	172	pub fn new(code: Code, msg: String) -> Self {
77	172	if msg.is_empty() { Branch (77:12): [True: 0, False: 172] Branch (77:12): [Folded - Ignored]
78	0	Self::new_with_messages(code, vec![])
79		} else {
80	172	Self::new_with_messages(code, vec![msg])
81		}
82	172	}
83
84		#[inline]
85		#[must_use]
86	9	pub fn append<S: Into<String>>(mut self, msg: S) -> Self {
87	9	self.messages.push(msg.into());
88	9	self
89	9	}
90
91		#[must_use]
92	3	pub fn merge<E: Into<Self>>(mut self, other: E) -> Self {
93	3	let mut other: Self = other.into();
94		// This will help with knowing which messages are tied to different errors.
95	3	self.messages.push("---".to_string());
96	3	self.messages.append(&mut other.messages);
97	3	self
98	3	}
99
100		#[must_use]
101	17	pub fn merge_option<T: Into<Self>, U: Into<Self>>(
102	17	this: Option<T>,
103	17	other: Option<U>,
104	17	) -> Option<Self> {
105	17	if let Some( this4 ) = this { Branch (105:16): [Folded - Ignored] Branch (105:16): [Folded - Ignored] Branch (105:16): [True: 4, False: 13]
106	4	if let Some( other0 ) = other { Branch (106:20): [Folded - Ignored] Branch (106:20): [Folded - Ignored] Branch (106:20): [True: 0, False: 4]
107	0	return Some(this.into().merge(other));
108	4	}
109	4	return Some(this.into());
110	13	}
111	13	other.map(Into::into)
112	17	}
113
114		#[must_use]
115	1	pub fn to_std_err(self) -> std::io::Error {
116	1	std::io::Error::new(self.code.into_error_kind(), self.messages.join(" : "))
117	1	}
118
119		#[must_use]
120	6	pub fn message_string(&self) -> String {
121	6	self.messages.join(" : ")
122	6	}
123		}
124
125		impl core::error::Error for Error {}
126
127		impl From<Error> for nativelink_proto::google::rpc::Status {
128	6	fn from(val: Error) -> Self {
129	6	Self {
130	6	code: val.code as i32,
131	6	message: val.message_string(),
132	6	details: vec![],
133	6	}
134	6	}
135		}
136
137		impl From<nativelink_proto::google::rpc::Status> for Error {
138	2	fn from(val: nativelink_proto::google::rpc::Status) -> Self {
139	2	Self {
140	2	code: val.code.into(),
141	2	messages: vec![val.message],
142	2	}
143	2	}
144		}
145
146		impl core::fmt::Display for Error {
147	23	fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
148		// A manual impl to reduce the noise of frequently empty fields.
149	23	let mut builder = f.debug_struct("Error");
150
151	23	builder.field("code", &self.code);
152
153	23	if !self.messages.is_empty() { Branch (153:12): [True: 23, False: 0] Branch (153:12): [Folded - Ignored]
154	23	builder.field("messages", &self.messages);
155	23	}0
156
157	23	builder.finish()
158	23	}
159		}
160
161		impl From<prost::DecodeError> for Error {
162	0	fn from(err: prost::DecodeError) -> Self {
163	0	make_err!(Code::Internal, "{}", err.to_string())
164	0	}
165		}
166
167		impl From<prost::EncodeError> for Error {
168	0	fn from(err: prost::EncodeError) -> Self {
169	0	make_err!(Code::Internal, "{}", err.to_string())
170	0	}
171		}
172
173		impl From<prost::UnknownEnumValue> for Error {
174	0	fn from(err: prost::UnknownEnumValue) -> Self {
175	0	make_err!(Code::Internal, "{}", err.to_string())
176	0	}
177		}
178
179		impl From<core::num::TryFromIntError> for Error {
180	0	fn from(err: core::num::TryFromIntError) -> Self {
181	0	make_err!(Code::InvalidArgument, "{}", err.to_string())
182	0	}
183		}
184
185		impl From<tokio::task::JoinError> for Error {
186	0	fn from(err: tokio::task::JoinError) -> Self {
187	0	make_err!(Code::Internal, "{}", err.to_string())
188	0	}
189		}
190
191		impl<T> From<PoisonError<MutexGuard<'_, T>>> for Error {
192	0	fn from(err: PoisonError<MutexGuard<'_, T>>) -> Self {
193	0	make_err!(Code::Internal, "{}", err.to_string())
194	0	}
195		}
196
197		impl From<serde_json5::Error> for Error {
198	0	fn from(err: serde_json5::Error) -> Self {
199	0	match err {
200	0	serde_json5::Error::Message { msg, location } => {
201	0	if let Some(has_location) = location { Branch (201:24): [True: 0, False: 0] Branch (201:24): [Folded - Ignored]
202	0	make_err!(
203	0	Code::Internal,
204		"line {}, column {} - {}",
205		has_location.line,
206		has_location.column,
207		msg
208		)
209		} else {
210	0	make_err!(Code::Internal, "{}", msg)
211		}
212		}
213		}
214	0	}
215		}
216
217		impl From<core::num::ParseIntError> for Error {
218	0	fn from(err: core::num::ParseIntError) -> Self {
219	0	make_err!(Code::InvalidArgument, "{}", err.to_string())
220	0	}
221		}
222
223		impl From<core::convert::Infallible> for Error {
224	0	fn from(_err: core::convert::Infallible) -> Self {
225		// Infallible is an error type that can never happen.
226	0	unreachable!();
227		}
228		}
229
230		impl From<TimestampError> for Error {
231	0	fn from(err: TimestampError) -> Self {
232	0	make_err!(Code::InvalidArgument, "{}", err)
233	0	}
234		}
235
236		impl From<std::io::Error> for Error {
237	12	fn from(err: std::io::Error) -> Self {
238	12	Self {
239	12	code: err.kind().into_code(),
240	12	messages: vec![err.to_string()],
241	12	}
242	12	}
243		}
244
245		impl From<fred::error::Error> for Error {
246	3	fn from(error: fred::error::Error) -> Self {
247		use fred::error::ErrorKind::{
248		Auth, Backpressure, Canceled, Cluster, Config, IO, InvalidArgument, InvalidCommand,
249		NotFound, Parse, Protocol, Routing, Sentinel, Timeout, Tls, Unknown, Url,
250		};
251
252		// Conversions here are based on https://grpc.github.io/grpc/core/md_doc_statuscodes.html.
253	3	let code = match error.kind() {
254	0	Config \| InvalidCommand \| InvalidArgument \| Url => Code::InvalidArgument,
255	0	IO \| Protocol \| Tls \| Cluster \| Parse \| Sentinel \| Routing => Code::Internal,
256	0	Auth => Code::PermissionDenied,
257	0	Canceled => Code::Aborted,
258	0	Unknown => Code::Unknown,
259	2	Timeout => Code::DeadlineExceeded,
260	1	NotFound => Code::NotFound,
261	0	Backpressure => Code::Unavailable,
262		};
263
264	3	make_err!(code, "{error}")
265	3	}
266		}
267
268		impl From<tonic::Status> for Error {
269	2	fn from(status: tonic::Status) -> Self {
270	2	make_err!(status.code(), "{}", status.to_string())
271	2	}
272		}
273
274		impl From<Error> for tonic::Status {
275	13	fn from(val: Error) -> Self {
276	13	Self::new(val.code, val.messages.join(" : "))
277	13	}
278		}
279
280		impl From<walkdir::Error> for Error {
281	0	fn from(value: walkdir::Error) -> Self {
282	0	Self::new(Code::Internal, value.to_string())
283	0	}
284		}
285
286		pub trait ResultExt<T> {
287		/// # Errors
288		///
289		/// Will return `Err` if we can't convert the error.
290		fn err_tip_with_code<F, S>(self, tip_fn: F) -> Result<T, Error>
291		where
292		Self: Sized,
293		S: ToString,
294		F: (FnOnce(&Error) -> (Code, S)) + Sized;
295
296		/// # Errors
297		///
298		/// Will return `Err` if we can't convert the error.
299		#[inline]
300	278k	fn err_tip<F, S>(self, tip_fn: F) -> Result<T, Error>
301	278k	where
302	278k	Self: Sized,
303	278k	S: ToString,
304	278k	F: (FnOnce() -> S) + Sized,
305		{
306	278k	self.err_tip_with_code(\|e\| ( e.code119 , tip_fn()119 ))
307	278k	}
308
309		/// # Errors
310		///
311		/// Will return `Err` if we can't merge the errors.
312	0	fn merge<U>(self, _other: Result<U, Error>) -> Result<U, Error>
313	0	where
314	0	Self: Sized,
315		{
316	0	unreachable!();
317		}
318		}
319
320		impl<T, E: Into<Error>> ResultExt<T> for Result<T, E> {
321		#[inline]
322	277k	fn err_tip_with_code<F, S>(self, tip_fn: F) -> Result<T, Error>
323	277k	where
324	277k	Self: Sized,
325	277k	S: ToString,
326	277k	F: (FnOnce(&Error) -> (Code, S)) + Sized,
327		{
328	277k	self.map_err(\|e\| {108
329	108	let mut error: Error = e.into();
330	108	let (code, message) = tip_fn(&error);
331	108	error.code = code;
332	108	error.messages.push(message.to_string());
333	108	error
334	108	})
335	277k	}
336
337	5.71k	fn merge<U>(self, other: Result<U, Error>) -> Result<U, Error>
338	5.71k	where
339	5.71k	Self: Sized,
340		{
341	5.71k	if let Err( e19 ) = self { Branch (341:16): [Folded - Ignored] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 1, False: 9] Branch (341:16): [True: 4, False: 39] Branch (341:16): [True: 4, False: 261] Branch (341:16): [True: 0, False: 1] Branch (341:16): [True: 0, False: 1] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 1, False: 17] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 1.23k] Branch (341:16): [True: 0, False: 1] Branch (341:16): [True: 3, False: 3.95k] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 1] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 10] Branch (341:16): [True: 0, False: 1] Branch (341:16): [True: 2, False: 1] Branch (341:16): [True: 0, False: 2] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 25] Branch (341:16): [True: 0, False: 12] Branch (341:16): [True: 1, False: 3] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 1, False: 1] Branch (341:16): [True: 0, False: 0] Branch (341:16): [Folded - Ignored] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 3] Branch (341:16): [True: 0, False: 1] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 5] Branch (341:16): [True: 1, False: 4] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 2] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 49] Branch (341:16): [True: 0, False: 5] Branch (341:16): [True: 0, False: 4] Branch (341:16): [True: 0, False: 1] Branch (341:16): [True: 0, False: 5] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 1, False: 46] Branch (341:16): [True: 0, False: 4] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0] Branch (341:16): [True: 0, False: 0]
342	19	let mut e: Error = e.into();
343	19	if let Err( other_err17 ) = other { Branch (343:20): [Folded - Ignored] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 1] Branch (343:20): [True: 4, False: 0] Branch (343:20): [True: 4, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 1, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 3, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 2, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 1, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 1, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [Folded - Ignored] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 1, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 1] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0] Branch (343:20): [True: 0, False: 0]
344	17	let mut other_err: Error = other_err;
345	17	// This will help with knowing which messages are tied to different errors.
346	17	e.messages.push("---".to_string());
347	17	e.messages.append(&mut other_err.messages);
348	17	}2
349	19	return Err(e);
350	5.69k	}
351	5.69k	other
352	5.71k	}
353		}
354
355		impl<T> ResultExt<T> for Option<T> {
356		#[inline]
357	5.62k	fn err_tip_with_code<F, S>(self, tip_fn: F) -> Result<T, Error>
358	5.62k	where
359	5.62k	Self: Sized,
360	5.62k	S: ToString,
361	5.62k	F: (FnOnce(&Error) -> (Code, S)) + Sized,
362		{
363	5.62k	self.ok_or_else(\|\| {18
364	18	let mut error = Error {
365	18	code: Code::Internal,
366	18	messages: vec![],
367	18	};
368	18	let (code, message) = tip_fn(&error);
369	18	error.code = code;
370	18	error.messages.push(message.to_string());
371	18	error
372	18	})
373	5.62k	}
374		}
375
376		trait CodeExt {
377		fn into_error_kind(self) -> std::io::ErrorKind;
378		}
379
380		impl CodeExt for Code {
381	1	fn into_error_kind(self) -> std::io::ErrorKind {
382	1	match self {
383	0	Self::Aborted => std::io::ErrorKind::Interrupted,
384	0	Self::AlreadyExists => std::io::ErrorKind::AlreadyExists,
385	0	Self::DeadlineExceeded => std::io::ErrorKind::TimedOut,
386	0	Self::InvalidArgument => std::io::ErrorKind::InvalidInput,
387	0	Self::NotFound => std::io::ErrorKind::NotFound,
388	0	Self::PermissionDenied => std::io::ErrorKind::PermissionDenied,
389	0	Self::Unavailable => std::io::ErrorKind::ConnectionRefused,
390	1	_ => std::io::ErrorKind::Other,
391		}
392	1	}
393		}
394
395		trait ErrorKindExt {
396		fn into_code(self) -> Code;
397		}
398
399		impl ErrorKindExt for std::io::ErrorKind {
400	12	fn into_code(self) -> Code {
401	12	match self {
402	11	Self::NotFound => Code::NotFound,
403	0	Self::PermissionDenied => Code::PermissionDenied,
404		Self::ConnectionRefused \| Self::ConnectionReset \| Self::ConnectionAborted => {
405	0	Code::Unavailable
406		}
407	0	Self::AlreadyExists => Code::AlreadyExists,
408	0	Self::InvalidInput \| Self::InvalidData => Code::InvalidArgument,
409	0	Self::TimedOut => Code::DeadlineExceeded,
410	0	Self::Interrupted => Code::Aborted,
411		Self::NotConnected
412		\| Self::AddrInUse
413		\| Self::AddrNotAvailable
414		\| Self::BrokenPipe
415		\| Self::WouldBlock
416		\| Self::WriteZero
417		\| Self::Other
418	1	\| Self::UnexpectedEof => Code::Internal,
419	0	_ => Code::Unknown,
420		}
421	12	}
422		}
423
424		// Serde definition for tonic::Code. See: https://serde.rs/remote-derive.html
425		#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
426		#[serde(remote = "Code")]
427		pub enum CodeDef {
428		Ok = 0,
429		Cancelled = 1,
430		Unknown = 2,
431		InvalidArgument = 3,
432		DeadlineExceeded = 4,
433		NotFound = 5,
434		AlreadyExists = 6,
435		PermissionDenied = 7,
436		ResourceExhausted = 8,
437		FailedPrecondition = 9,
438		Aborted = 10,
439		OutOfRange = 11,
440		Unimplemented = 12,
441		Internal = 13,
442		Unavailable = 14,
443		DataLoss = 15,
444		Unauthenticated = 16,
445		// NOTE: Additional codes must be added to stores.rs in ErrorCodes and also
446		// in both match statements in retry.rs.
447		}