sqlx_core_guts/sqlite/
error.rs

1use std::error::Error as StdError;
2use std::ffi::CStr;
3use std::fmt::{self, Display, Formatter};
4use std::os::raw::c_int;
5use std::{borrow::Cow, str::from_utf8_unchecked};
6
7use libsqlite3_sys::{sqlite3, sqlite3_errmsg, sqlite3_extended_errcode};
8
9use crate::error::DatabaseError;
10
11// Error Codes And Messages
12// https://www.sqlite.org/c3ref/errcode.html
13
14#[derive(Debug)]
15pub struct SqliteError {
16    code: c_int,
17    message: String,
18}
19
20impl SqliteError {
21    pub(crate) fn new(handle: *mut sqlite3) -> Self {
22        // returns the extended result code even when extended result codes are disabled
23        let code: c_int = unsafe { sqlite3_extended_errcode(handle) };
24
25        // return English-language text that describes the error
26        let message = unsafe {
27            let msg = sqlite3_errmsg(handle);
28            debug_assert!(!msg.is_null());
29
30            from_utf8_unchecked(CStr::from_ptr(msg).to_bytes())
31        };
32
33        Self {
34            code,
35            message: message.to_owned(),
36        }
37    }
38}
39
40impl Display for SqliteError {
41    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
42        f.pad(&self.message)
43    }
44}
45
46impl StdError for SqliteError {}
47
48impl DatabaseError for SqliteError {
49    /// The extended result code.
50    #[inline]
51    fn code(&self) -> Option<Cow<'_, str>> {
52        Some(format!("{}", self.code).into())
53    }
54
55    #[inline]
56    fn message(&self) -> &str {
57        &self.message
58    }
59
60    #[doc(hidden)]
61    fn as_error(&self) -> &(dyn StdError + Send + Sync + 'static) {
62        self
63    }
64
65    #[doc(hidden)]
66    fn as_error_mut(&mut self) -> &mut (dyn StdError + Send + Sync + 'static) {
67        self
68    }
69
70    #[doc(hidden)]
71    fn into_error(self: Box<Self>) -> Box<dyn StdError + Send + Sync + 'static> {
72        self
73    }
74}
sqlx_core_guts/sqlite/error.rs

sqlx_core_guts/sqlite/
error.rs
