sqlx_build_trust_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::{
8 sqlite3, sqlite3_errmsg, sqlite3_extended_errcode, SQLITE_CONSTRAINT_CHECK,
9 SQLITE_CONSTRAINT_FOREIGNKEY, SQLITE_CONSTRAINT_NOTNULL, SQLITE_CONSTRAINT_PRIMARYKEY,
10 SQLITE_CONSTRAINT_UNIQUE,
11};
12
13pub(crate) use sqlx_core::error::*;
14
15#[derive(Debug)]
19pub struct SqliteError {
20 code: c_int,
21 message: String,
22}
23
24impl SqliteError {
25 pub(crate) fn new(handle: *mut sqlite3) -> Self {
26 let code: c_int = unsafe { sqlite3_extended_errcode(handle) };
28
29 let message = unsafe {
31 let msg = sqlite3_errmsg(handle);
32 debug_assert!(!msg.is_null());
33
34 from_utf8_unchecked(CStr::from_ptr(msg).to_bytes())
35 };
36
37 Self {
38 code,
39 message: message.to_owned(),
40 }
41 }
42
43 pub(crate) fn extension(handle: *mut sqlite3, error_msg: &CStr) -> Self {
45 let mut err = Self::new(handle);
46 err.message = unsafe { from_utf8_unchecked(error_msg.to_bytes()).to_owned() };
47 err
48 }
49}
50
51impl Display for SqliteError {
52 fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
53 write!(f, "(code: {}) {}", self.code, self.message)
58 }
59}
60
61impl StdError for SqliteError {}
62
63impl DatabaseError for SqliteError {
64 #[inline]
65 fn message(&self) -> &str {
66 &self.message
67 }
68
69 #[inline]
71 fn code(&self) -> Option<Cow<'_, str>> {
72 Some(format!("{}", self.code).into())
73 }
74
75 #[doc(hidden)]
76 fn as_error(&self) -> &(dyn StdError + Send + Sync + 'static) {
77 self
78 }
79
80 #[doc(hidden)]
81 fn as_error_mut(&mut self) -> &mut (dyn StdError + Send + Sync + 'static) {
82 self
83 }
84
85 #[doc(hidden)]
86 fn into_error(self: Box<Self>) -> Box<dyn StdError + Send + Sync + 'static> {
87 self
88 }
89
90 fn kind(&self) -> ErrorKind {
91 match self.code {
92 SQLITE_CONSTRAINT_UNIQUE | SQLITE_CONSTRAINT_PRIMARYKEY => ErrorKind::UniqueViolation,
93 SQLITE_CONSTRAINT_FOREIGNKEY => ErrorKind::ForeignKeyViolation,
94 SQLITE_CONSTRAINT_NOTNULL => ErrorKind::NotNullViolation,
95 SQLITE_CONSTRAINT_CHECK => ErrorKind::CheckViolation,
96 _ => ErrorKind::Other,
97 }
98 }
99}