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Rustfmt

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This commit is contained in:
gwenn
2016-02-02 19:12:00 +01:00
parent 55dde134e1
commit f529d130b9
7 changed files with 197 additions and 200 deletions
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258
src/lib.rs
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@@ -87,8 +87,8 @@ mod error;
#[cfg(feature = "load_extension")]mod load_extension_guard;
#[cfg(feature = "trace")]pub mod trace;
#[cfg(feature = "backup")]pub mod backup;
#[cfg(feature = "functions")] pub mod functions;
#[cfg(feature = "blob")] pub mod blob;
#[cfg(feature = "functions")]pub mod functions;
#[cfg(feature = "blob")]pub mod blob;
/// Old name for `Result`. `SqliteResult` is deprecated.
pub type SqliteResult<T> = Result<T>;
@@ -182,17 +182,15 @@ impl Connection {
///
/// Will return `Err` if `path` cannot be converted to a C-compatible string or if the
/// underlying SQLite open call fails.
pub fn open_with_flags<P: AsRef<Path>>(path: P,
flags: OpenFlags)
-> Result<Connection> {
let c_path = try!(path_to_cstring(path.as_ref()));
InnerConnection::open_with_flags(&c_path, flags).map(|db| {
Connection {
db: RefCell::new(db),
path: Some(path.as_ref().to_path_buf()),
}
})
}
pub fn open_with_flags<P: AsRef<Path>>(path: P, flags: OpenFlags) -> Result<Connection> {
let c_path = try!(path_to_cstring(path.as_ref()));
InnerConnection::open_with_flags(&c_path, flags).map(|db| {
Connection {
db: RefCell::new(db),
path: Some(path.as_ref().to_path_buf()),
}
})
}
/// Open a new connection to an in-memory SQLite database.
///
@@ -249,9 +247,9 @@ impl Connection {
/// Will return `Err` if the underlying SQLite call fails.
pub fn transaction_with_behavior<'a>(&'a self,
behavior: TransactionBehavior)
-> Result<Transaction<'a>> {
Transaction::new(self, behavior)
}
-> Result<Transaction<'a>> {
Transaction::new(self, behavior)
}
/// Convenience method to run multiple SQL statements (that cannot take any parameters).
///
@@ -359,7 +357,11 @@ impl Connection {
///
/// Will return `Err` if `sql` cannot be converted to a C-compatible string or if the
/// underlying SQLite call fails.
pub fn query_row_and_then<T, E, F>(&self, sql: &str, params: &[&ToSql], f: F) -> result::Result<T, E>
pub fn query_row_and_then<T, E, F>(&self,
sql: &str,
params: &[&ToSql],
f: F)
-> result::Result<T, E>
where F: FnOnce(Row) -> result::Result<T, E>,
E: convert::From<Error>
{
@@ -390,9 +392,9 @@ impl Connection {
/// does exactly the same thing.
pub fn query_row_safe<T, F>(&self, sql: &str, params: &[&ToSql], f: F) -> Result<T>
where F: FnOnce(Row) -> T
{
self.query_row(sql, params, f)
}
{
self.query_row(sql, params, f)
}
/// Prepare a SQL statement for execution.
///
@@ -490,9 +492,9 @@ impl Connection {
pub fn load_extension<P: AsRef<Path>>(&self,
dylib_path: P,
entry_point: Option<&str>)
-> Result<()> {
self.db.borrow_mut().load_extension(dylib_path.as_ref(), entry_point)
}
-> Result<()> {
self.db.borrow_mut().load_extension(dylib_path.as_ref(), entry_point)
}
fn decode_result(&self, code: c_int) -> Result<()> {
self.db.borrow_mut().decode_result(code)
@@ -506,8 +508,8 @@ impl Connection {
impl fmt::Debug for Connection {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("Connection")
.field("path", &self.path)
.finish()
.field("path", &self.path)
.finish()
}
}
@@ -542,60 +544,58 @@ impl Default for OpenFlags {
}
impl InnerConnection {
fn open_with_flags(c_path: &CString,
flags: OpenFlags)
-> Result<InnerConnection> {
unsafe {
// Before opening the database, we need to check that SQLite hasn't been
// compiled or configured to be in single-threaded mode. If it has, we're
// exposing a very unsafe API to Rust, so refuse to open connections at all.
// Unfortunately, the check for this is quite gross. sqlite3_threadsafe() only
// returns how SQLite was _compiled_; there is no public API to check whether
// someone called sqlite3_config() to set single-threaded mode. We can cheat
// by trying to allocate a mutex, though; in single-threaded mode due to
// compilation settings, the magic value 8 is returned (see the definition of
// sqlite3_mutex_alloc at https://github.com/mackyle/sqlite/blob/master/src/mutex.h);
// in single-threaded mode due to sqlite3_config(), the magic value 8 is also
// returned (see the definition of noopMutexAlloc at
// https://github.com/mackyle/sqlite/blob/master/src/mutex_noop.c).
const SQLITE_SINGLETHREADED_MUTEX_MAGIC: usize = 8;
let mutex_ptr = ffi::sqlite3_mutex_alloc(0);
let is_singlethreaded = if mutex_ptr as usize == SQLITE_SINGLETHREADED_MUTEX_MAGIC {
true
fn open_with_flags(c_path: &CString, flags: OpenFlags) -> Result<InnerConnection> {
unsafe {
// Before opening the database, we need to check that SQLite hasn't been
// compiled or configured to be in single-threaded mode. If it has, we're
// exposing a very unsafe API to Rust, so refuse to open connections at all.
// Unfortunately, the check for this is quite gross. sqlite3_threadsafe() only
// returns how SQLite was _compiled_; there is no public API to check whether
// someone called sqlite3_config() to set single-threaded mode. We can cheat
// by trying to allocate a mutex, though; in single-threaded mode due to
// compilation settings, the magic value 8 is returned (see the definition of
// sqlite3_mutex_alloc at https://github.com/mackyle/sqlite/blob/master/src/mutex.h);
// in single-threaded mode due to sqlite3_config(), the magic value 8 is also
// returned (see the definition of noopMutexAlloc at
// https://github.com/mackyle/sqlite/blob/master/src/mutex_noop.c).
const SQLITE_SINGLETHREADED_MUTEX_MAGIC: usize = 8;
let mutex_ptr = ffi::sqlite3_mutex_alloc(0);
let is_singlethreaded = if mutex_ptr as usize == SQLITE_SINGLETHREADED_MUTEX_MAGIC {
true
} else {
false
};
ffi::sqlite3_mutex_free(mutex_ptr);
if is_singlethreaded {
return Err(Error::SqliteSingleThreadedMode);
}
let mut db: *mut ffi::sqlite3 = mem::uninitialized();
let r = ffi::sqlite3_open_v2(c_path.as_ptr(), &mut db, flags.bits(), ptr::null());
if r != ffi::SQLITE_OK {
let e = if db.is_null() {
error_from_sqlite_code(r, None)
} else {
false
};
ffi::sqlite3_mutex_free(mutex_ptr);
if is_singlethreaded {
return Err(Error::SqliteSingleThreadedMode);
}
let mut db: *mut ffi::sqlite3 = mem::uninitialized();
let r = ffi::sqlite3_open_v2(c_path.as_ptr(), &mut db, flags.bits(), ptr::null());
if r != ffi::SQLITE_OK {
let e = if db.is_null() {
error_from_sqlite_code(r, None)
} else {
let e = error_from_handle(db, r);
ffi::sqlite3_close(db);
e
};
return Err(e);
}
let r = ffi::sqlite3_busy_timeout(db, 5000);
if r != ffi::SQLITE_OK {
let e = error_from_handle(db, r);
ffi::sqlite3_close(db);
return Err(e);
}
e
};
// attempt to turn on extended results code; don't fail if we can't.
ffi::sqlite3_extended_result_codes(db, 1);
Ok(InnerConnection { db: db })
return Err(e);
}
let r = ffi::sqlite3_busy_timeout(db, 5000);
if r != ffi::SQLITE_OK {
let e = error_from_handle(db, r);
ffi::sqlite3_close(db);
return Err(e);
}
// attempt to turn on extended results code; don't fail if we can't.
ffi::sqlite3_extended_result_codes(db, 1);
Ok(InnerConnection { db: db })
}
}
fn db(&self) -> *mut ffi::Struct_sqlite3 {
self.db
@@ -621,10 +621,10 @@ impl InnerConnection {
let c_sql = try!(str_to_cstring(sql));
unsafe {
let r = ffi::sqlite3_exec(self.db(),
c_sql.as_ptr(),
None,
ptr::null_mut(),
ptr::null_mut());
c_sql.as_ptr(),
None,
ptr::null_mut(),
ptr::null_mut());
self.decode_result(r)
}
}
@@ -663,25 +663,22 @@ impl InnerConnection {
unsafe { ffi::sqlite3_last_insert_rowid(self.db()) }
}
fn prepare<'a>(&mut self,
conn: &'a Connection,
sql: &str)
-> Result<Statement<'a>> {
if sql.len() >= ::std::i32::MAX as usize {
return Err(error_from_sqlite_code(ffi::SQLITE_TOOBIG, None));
}
let mut c_stmt: *mut ffi::sqlite3_stmt = unsafe { mem::uninitialized() };
let c_sql = try!(str_to_cstring(sql));
let r = unsafe {
let len_with_nul = (sql.len() + 1) as c_int;
ffi::sqlite3_prepare_v2(self.db(),
c_sql.as_ptr(),
len_with_nul,
&mut c_stmt,
ptr::null_mut())
};
self.decode_result(r).map(|_| Statement::new(conn, c_stmt))
fn prepare<'a>(&mut self, conn: &'a Connection, sql: &str) -> Result<Statement<'a>> {
if sql.len() >= ::std::i32::MAX as usize {
return Err(error_from_sqlite_code(ffi::SQLITE_TOOBIG, None));
}
let mut c_stmt: *mut ffi::sqlite3_stmt = unsafe { mem::uninitialized() };
let c_sql = try!(str_to_cstring(sql));
let r = unsafe {
let len_with_nul = (sql.len() + 1) as c_int;
ffi::sqlite3_prepare_v2(self.db(),
c_sql.as_ptr(),
len_with_nul,
&mut c_stmt,
ptr::null_mut())
};
self.decode_result(r).map(|_| Statement::new(conn, c_stmt))
}
fn changes(&mut self) -> c_int {
unsafe { ffi::sqlite3_changes(self.db()) }
@@ -790,7 +787,7 @@ impl<'conn> Statement<'conn> {
} else {
Ok(self.conn.changes())
}
},
}
ffi::SQLITE_ROW => Err(Error::ExecuteReturnedResults),
_ => Err(self.conn.decode_result(r).unwrap_err()),
}
@@ -839,19 +836,16 @@ impl<'conn> Statement<'conn> {
/// # Failure
///
/// Will return `Err` if binding parameters fails.
pub fn query_map<'a, T, F>(&'a mut self,
params: &[&ToSql],
f: F)
-> Result<MappedRows<'a, F>>
pub fn query_map<'a, T, F>(&'a mut self, params: &[&ToSql], f: F) -> Result<MappedRows<'a, F>>
where F: FnMut(&Row) -> T
{
let row_iter = try!(self.query(params));
{
let row_iter = try!(self.query(params));
Ok(MappedRows {
rows: row_iter,
map: f,
})
}
Ok(MappedRows {
rows: row_iter,
map: f,
})
}
/// Executes the prepared statement and maps a function over the resulting
/// rows, where the function returns a `Result` with `Error` type implementing
@@ -866,17 +860,17 @@ impl<'conn> Statement<'conn> {
pub fn query_and_then<'a, T, E, F>(&'a mut self,
params: &[&ToSql],
f: F)
-> Result<AndThenRows<'a, F>>
-> Result<AndThenRows<'a, F>>
where E: convert::From<Error>,
F: FnMut(&Row) -> result::Result<T, E>
{
let row_iter = try!(self.query(params));
{
let row_iter = try!(self.query(params));
Ok(AndThenRows {
rows: row_iter,
map: f,
})
}
Ok(AndThenRows {
rows: row_iter,
map: f,
})
}
/// Consumes the statement.
///
@@ -892,9 +886,9 @@ impl<'conn> Statement<'conn> {
unsafe fn bind_parameters(&mut self, params: &[&ToSql]) -> Result<()> {
assert!(params.len() as c_int == ffi::sqlite3_bind_parameter_count(self.stmt),
"incorrect number of parameters to query(): expected {}, got {}",
ffi::sqlite3_bind_parameter_count(self.stmt),
params.len());
"incorrect number of parameters to query(): expected {}, got {}",
ffi::sqlite3_bind_parameter_count(self.stmt),
params.len());
for (i, p) in params.iter().enumerate() {
try!(self.conn.decode_result(p.bind_parameter(self.stmt, (i + 1) as c_int)));
@@ -926,10 +920,10 @@ impl<'conn> fmt::Debug for Statement<'conn> {
str::from_utf8(c_slice)
};
f.debug_struct("Statement")
.field("conn", self.conn)
.field("stmt", &self.stmt)
.field("sql", &sql)
.finish()
.field("conn", self.conn)
.field("stmt", &self.stmt)
.field("sql", &sql)
.finish()
}
}
@@ -963,15 +957,15 @@ pub struct AndThenRows<'stmt, F> {
}
impl<'stmt, T, E, F> Iterator for AndThenRows<'stmt, F>
where E: convert::From<Error>,
F: FnMut(&Row) -> result::Result<T, E>
where E: convert::From<Error>,
F: FnMut(&Row) -> result::Result<T, E>
{
type Item = result::Result<T, E>;
fn next(&mut self) -> Option<Self::Item> {
self.rows.next().map(|row_result| {
row_result.map_err(E::from)
.and_then(|row| (self.map)(&row))
.and_then(|row| (self.map)(&row))
})
}
}
@@ -1222,11 +1216,11 @@ mod test {
#[test]
fn test_open_with_flags() {
for bad_flags in [OpenFlags::empty(),
SQLITE_OPEN_READ_ONLY | SQLITE_OPEN_READ_WRITE,
SQLITE_OPEN_READ_ONLY | SQLITE_OPEN_CREATE]
.iter() {
assert!(Connection::open_in_memory_with_flags(*bad_flags).is_err());
}
SQLITE_OPEN_READ_ONLY | SQLITE_OPEN_READ_WRITE,
SQLITE_OPEN_READ_ONLY | SQLITE_OPEN_CREATE]
.iter() {
assert!(Connection::open_in_memory_with_flags(*bad_flags).is_err());
}
}
#[test]
@@ -1402,7 +1396,7 @@ mod test {
assert_eq!(2i32, second.get(0));
match first.get_checked::<i32,i32>(0).unwrap_err() {
match first.get_checked::<i32, i32>(0).unwrap_err() {
Error::GetFromStaleRow => (),
err => panic!("Unexpected error {}", err),
}
@@ -1450,7 +1444,7 @@ mod test {
if version >= 3007016 {
assert_eq!(err.extended_code, ffi::SQLITE_CONSTRAINT_NOTNULL)
}
},
}
err => panic!("Unexpected error {}", err),
}
}