sqlx_core/sqlite/
error.rs1use 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#[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 let code: c_int = unsafe { sqlite3_extended_errcode(handle) };
24
25 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 pub(crate) fn extension(handle: *mut sqlite3, error_msg: &CStr) -> Self {
41 let mut err = Self::new(handle);
42 err.message = unsafe { from_utf8_unchecked(error_msg.to_bytes()).to_owned() };
43 err
44 }
45}
46
47impl Display for SqliteError {
48 fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
49 write!(f, "(code: {}) {}", self.code, self.message)
54 }
55}
56
57impl StdError for SqliteError {}
58
59impl DatabaseError for SqliteError {
60 #[inline]
62 fn code(&self) -> Option<Cow<'_, str>> {
63 Some(format!("{}", self.code).into())
64 }
65
66 #[inline]
67 fn message(&self) -> &str {
68 &self.message
69 }
70
71 #[doc(hidden)]
72 fn as_error(&self) -> &(dyn StdError + Send + Sync + 'static) {
73 self
74 }
75
76 #[doc(hidden)]
77 fn as_error_mut(&mut self) -> &mut (dyn StdError + Send + Sync + 'static) {
78 self
79 }
80
81 #[doc(hidden)]
82 fn into_error(self: Box<Self>) -> Box<dyn StdError + Send + Sync + 'static> {
83 self
84 }
85}