rem_extract/
error.rs

1use std::error::Error as StdError;
2use std::fmt;
3use std::io;
4use syn::Error as SynError;
5use ra_ap_ide_assists::Assist;
6
7#[derive(Debug)]
8pub enum ExtractionError {
9    Io(io::Error),
10    Parse(SynError),
11    InvalidManifest,
12    InvalidStartIdx,
13    InvalidEndIdx,
14    SameIdx,
15    InvalidIdxPair,
16    NoExtractFunction(Vec<Assist>),
17    CommentNotApplicable,
18    BracesNotApplicable,
19    ParentMethodNotFound,
20}
21
22impl fmt::Display for ExtractionError {
23    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
24        match self {
25            ExtractionError::Io(e) => write!(f, "I/O error: {}", e),
26            ExtractionError::Parse(e) => write!(f, "Parse error: {}", e),
27            ExtractionError::InvalidManifest => write!(f, "Could not find a manifest file for the given path"),
28            ExtractionError::InvalidStartIdx => write!(f, "Invalid start index"),
29            ExtractionError::InvalidEndIdx => write!(f, "Invalid end index"),
30            ExtractionError::SameIdx => write!(f, "Start and end indices are the same"),
31            ExtractionError::InvalidIdxPair => write!(f, "Invalid pair of start and end indices"),
32            ExtractionError::NoExtractFunction(assists) =>
33                write!(f, "No Extract Function Assist found for the given selection of assists {:?}", assists),
34            ExtractionError::CommentNotApplicable => write!(f, "Extraction not applicable for comment"),
35            ExtractionError::BracesNotApplicable => write!(f, "Extraction not applicable for braces"),
36            ExtractionError::ParentMethodNotFound => write!(f, "Parent method not found"),
37        }
38    }
39}
40
41// This makes `anyhow::Error` able to wrap `ExtractionError`
42impl StdError for ExtractionError {
43    fn source(&self) -> Option<&(dyn StdError + 'static)> {
44        match self {
45            ExtractionError::Io(e) => Some(e),
46            ExtractionError::Parse(e) => Some(e),
47            _ => None,
48        }
49    }
50}
51
52impl From<io::Error> for ExtractionError {
53    fn from(e: io::Error) -> Self { ExtractionError::Io(e) }
54}
55impl From<SynError> for ExtractionError {
56    fn from(e: SynError) -> Self { ExtractionError::Parse(e) }
57}
rem_extract/error.rs

rem_extract/
error.rs
