bauer/xdrfile
1
0
Fork 0
mirror of https://github.com/dnlbauer/xdrfile.git synced 2026-09-10 22:25:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

Nicer error messages

Browse Source
This commit is contained in:
Josh Mitchell
2020-11-07 23:45:14 +11:00
parent 4ca96364b9
commit 18436aaaa3
1 changed files with 30 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
src/errors.rs
View File

@@ -86,41 +86,47 @@ impl From<std::ffi::NulError> for Error {
impl std::fmt::Display for Error { impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
use ErrorTask::*; use ErrorTask::*;
match &self.task { match (&self.task, &self.code) {
OpenFile(path, mode) => write!( (OpenFile(path, mode), _) => write!(
f, f,
"Failed to open file at {path:?} with mode {mode:?}", "Failed to open file at {path:?} with mode {mode:?}",
path = path, path = path,
mode = mode mode = mode
), ),
ReadNumAtoms => write!( (ReadNumAtoms, Some(code)) => write!(
f, f,
"Failed to read atom number from trajectory: C API returned error code {:?}", "Failed to read atom number from trajectory: C API returned error code {}",
self.code code
), ),
Read => write!( (ReadNumAtoms, None) => write!(f, "Failed to read atom number from trajectory"),
(Read, Some(code)) => write!(
f, f,
"Failed to read trajectory: C API returned error code {:?}", "Failed to read trajectory: C API returned error code {}",
self.code code
), ),
Write => write!( (Read, None) => write!(f, "Failed to read trajectory"),
(Write, Some(code)) => write!(
f, f,
"Failed to write trajectory: C API returned error code {:?}", "Failed to write trajectory: C API returned error code {}",
self.code code
), ),
Flush => write!( (Write, None) => write!(f, "Failed to write trajectory"),
(Flush, Some(code)) => write!(
f, f,
"Failed to flush trajectory: C API returned error code {:?}", "Failed to flush trajectory: C API returned error code {}",
self.code code
), ),
ToCString(_) => write!( (ToCString(_), _) => write!(
f, f,
"Path cannot be converted to a C string because it has a null byte" "Path cannot be converted to a C string because it has a null byte"
), ),
(Flush, None) => write!(f, "Failed to flush trajectory"),
} }
} }
} }
impl std::error::Error for Error {}
#[derive(Debug, Clone, PartialEq)] #[derive(Debug, Clone, PartialEq)]
pub enum ErrorCode { pub enum ErrorCode {
ExdrOk, ExdrOk,
@@ -171,7 +177,15 @@ impl From<c_abi::xdrfile::BindgenTy1> for ErrorCode {
} }
} }
impl std::error::Error for Error {} impl std::fmt::Display for ErrorCode {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
if let Self::UnmatchedCode(i) = self {
write!(f, "{}", i)
} else {
write!(f, "{:?}", self)
}
}
}
pub type Result<T, E = Error> = std::result::Result<T, E>; pub type Result<T, E = Error> = std::result::Result<T, E>;