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This commit is contained in:
Steven Fackler 2017-02-14 22:46:19 -08:00
parent 73e4ec1c0d
commit 4c91a68dcc
31 changed files with 332 additions and 336 deletions
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22
README.md
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@ -63,8 +63,8 @@ fn main() {
### Connecting ### Connecting
Connect to a Postgres server using the standard URI format: Connect to a Postgres server using the standard URI format:
```rust ```rust
let conn = try!(Connection::connect("postgres://user:pass@host:port/database?arg1=val1&arg2=val2", let conn = Connection::connect("postgres://user:pass@host:port/database?arg1=val1&arg2=val2",
TlsMode::None)); TlsMode::None)?;
``` ```
`pass` may be omitted if not needed. `port` defaults to `5432` and `database` `pass` may be omitted if not needed. `port` defaults to `5432` and `database`
defaults to the value of `user` if not specified. The driver supports `trust`, defaults to the value of `user` if not specified. The driver supports `trust`,
@ -75,7 +75,7 @@ be set to the absolute path to the directory containing the socket file. Since
`/` is a reserved character in URLs, the path should be URL encoded. If Postgres `/` is a reserved character in URLs, the path should be URL encoded. If Postgres
stored its socket files in `/run/postgres`, the connection would then look like: stored its socket files in `/run/postgres`, the connection would then look like:
```rust ```rust
let conn = try!(Connection::connect("postgres://postgres@%2Frun%2Fpostgres", TlsMode::None)); let conn = Connection::connect("postgres://postgres@%2Frun%2Fpostgres", TlsMode::None)?;
``` ```
Paths which contain non-UTF8 characters can be handled in a different manner; Paths which contain non-UTF8 characters can be handled in a different manner;
see the documentation for details. see the documentation for details.
@ -89,7 +89,7 @@ that query parameters are 1-indexed rather than the more common 0-indexing.
`execute` returns the number of rows affected by the query (or 0 if not `execute` returns the number of rows affected by the query (or 0 if not
applicable): applicable):
```rust ```rust
let updates = try!(conn.execute("UPDATE foo SET bar = $1 WHERE baz = $2", &[&1i32, &"biz"])); let updates = conn.execute("UPDATE foo SET bar = $1 WHERE baz = $2", &[&1i32, &"biz"])?;
println!("{} rows were updated", updates); println!("{} rows were updated", updates);
``` ```
@ -98,7 +98,7 @@ The fields in a row can be accessed either by their indices or their column
names, though access by index is more efficient. Unlike statement parameters, names, though access by index is more efficient. Unlike statement parameters,
result columns are zero-indexed. result columns are zero-indexed.
```rust ```rust
for row in &try!(conn.query("SELECT bar, baz FROM foo WHERE buz = $1", &[&1i32])) { for row in &conn.query("SELECT bar, baz FROM foo WHERE buz = $1", &[&1i32])? {
let bar: i32 = row.get(0); let bar: i32 = row.get(0);
let baz: String = row.get("baz"); let baz: String = row.get("baz");
println!("bar: {}, baz: {}", bar, baz); println!("bar: {}, baz: {}", bar, baz);
@ -110,9 +110,9 @@ If the same statement will be executed repeatedly (possibly with different
parameters), explicitly preparing it can improve performance: parameters), explicitly preparing it can improve performance:
```rust ```rust
let stmt = try!(conn.prepare("UPDATE foo SET bar = $1 WHERE baz = $2")); let stmt = conn.prepare("UPDATE foo SET bar = $1 WHERE baz = $2")?;
for (bar, baz) in updates { for (bar, baz) in updates {
try!(stmt.execute(&[bar, baz])); stmt.execute(&[bar, baz])?;
} }
``` ```
@ -122,13 +122,13 @@ The `transaction` method will start a new transaction. It returns a
`Connection` as well as methods to control the result of the `Connection` as well as methods to control the result of the
transaction: transaction:
```rust ```rust
let trans = try!(conn.transaction()); let trans = conn.transaction()?;
try!(trans.execute(...)); trans.execute(...)?;
let stmt = try!(trans.prepare(...)); let stmt = trans.prepare(...)?;
// ... // ...
try!(trans.commit()); trans.commit()?;
``` ```
The transaction will be active until the `Transaction` object falls out of The transaction will be active until the `Transaction` object falls out of
scope. A transaction will roll back by default. Nested transactions are scope. A transaction will roll back by default. Nested transactions are

2
codegen/src/type_gen.rs
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@ -159,7 +159,7 @@ r#"impl fmt::Display for Type {{
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {{ fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {{
match self.schema() {{ match self.schema() {{
"public" | "pg_catalog" => {{}} "public" | "pg_catalog" => {{}}
schema => try!(write!(fmt, "{{}}.", schema)), schema => write!(fmt, "{{}}.", schema)?,
}} }}
fmt.write_str(self.name()) fmt.write_str(self.name())
}} }}

36
postgres-shared/src/error/mod.rs
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@ -159,7 +159,7 @@ impl DbError {
let mut line = None; let mut line = None;
let mut routine = None; let mut routine = None;
while let Some(field) = try!(fields.next()) { while let Some(field) = fields.next()? {
match field.type_() { match field.type_() {
b'S' => severity = Some(field.value().to_owned()), b'S' => severity = Some(field.value().to_owned()),
b'C' => code = Some(SqlState::from_code(field.value())), b'C' => code = Some(SqlState::from_code(field.value())),
@ -167,16 +167,16 @@ impl DbError {
b'D' => detail = Some(field.value().to_owned()), b'D' => detail = Some(field.value().to_owned()),
b'H' => hint = Some(field.value().to_owned()), b'H' => hint = Some(field.value().to_owned()),
b'P' => { b'P' => {
normal_position = Some(try!(field.value().parse::<u32>().map_err(|_| { normal_position = Some(field.value().parse::<u32>().map_err(|_| {
io::Error::new(io::ErrorKind::InvalidInput, io::Error::new(io::ErrorKind::InvalidInput,
"`P` field did not contain an integer") "`P` field did not contain an integer")
}))); })?);
} }
b'p' => { b'p' => {
internal_position = Some(try!(field.value().parse::<u32>().map_err(|_| { internal_position = Some(field.value().parse::<u32>().map_err(|_| {
io::Error::new(io::ErrorKind::InvalidInput, io::Error::new(io::ErrorKind::InvalidInput,
"`p` field did not contain an integer") "`p` field did not contain an integer")
}))); })?);
} }
b'q' => internal_query = Some(field.value().to_owned()), b'q' => internal_query = Some(field.value().to_owned()),
b'W' => where_ = Some(field.value().to_owned()), b'W' => where_ = Some(field.value().to_owned()),
@ -187,31 +187,31 @@ impl DbError {
b'n' => constraint = Some(field.value().to_owned()), b'n' => constraint = Some(field.value().to_owned()),
b'F' => file = Some(field.value().to_owned()), b'F' => file = Some(field.value().to_owned()),
b'L' => { b'L' => {
line = Some(try!(field.value().parse::<u32>().map_err(|_| { line = Some(field.value().parse::<u32>().map_err(|_| {
io::Error::new(io::ErrorKind::InvalidInput, io::Error::new(io::ErrorKind::InvalidInput,
"`L` field did not contain an integer") "`L` field did not contain an integer")
}))); })?);
} }
b'R' => routine = Some(field.value().to_owned()), b'R' => routine = Some(field.value().to_owned()),
b'V' => { b'V' => {
parsed_severity = Some(try!(Severity::from_str(field.value()).ok_or_else(|| { parsed_severity = Some(Severity::from_str(field.value()).ok_or_else(|| {
io::Error::new(io::ErrorKind::InvalidInput, io::Error::new(io::ErrorKind::InvalidInput,
"`V` field contained an invalid value") "`V` field contained an invalid value")
}))); })?);
} }
_ => {}, _ => {},
} }
} }
Ok(DbError { Ok(DbError {
severity: try!(severity.ok_or_else(|| { severity: severity.ok_or_else(|| {
io::Error::new(io::ErrorKind::InvalidInput, "`S` field missing") io::Error::new(io::ErrorKind::InvalidInput, "`S` field missing")
})), })?,
parsed_severity: parsed_severity, parsed_severity: parsed_severity,
code: try!(code.ok_or_else(|| io::Error::new(io::ErrorKind::InvalidInput, code: code.ok_or_else(|| io::Error::new(io::ErrorKind::InvalidInput,
"`C` field missing"))), "`C` field missing"))?,
message: try!(message.ok_or_else(|| io::Error::new(io::ErrorKind::InvalidInput, message: message.ok_or_else(|| io::Error::new(io::ErrorKind::InvalidInput,
"`M` field missing"))), "`M` field missing"))?,
detail: detail, detail: detail,
hint: hint, hint: hint,
position: match normal_position { position: match normal_position {
@ -221,10 +221,10 @@ impl DbError {
Some(position) => { Some(position) => {
Some(ErrorPosition::Internal { Some(ErrorPosition::Internal {
position: position, position: position,
query: try!(internal_query.ok_or_else(|| { query: internal_query.ok_or_else(|| {
io::Error::new(io::ErrorKind::InvalidInput, io::Error::new(io::ErrorKind::InvalidInput,
"`q` field missing but `p` field present") "`q` field missing but `p` field present")
})), })?,
}) })
} }
None => None, None => None,
@ -310,7 +310,7 @@ pub enum ConnectError {
impl fmt::Display for ConnectError { impl fmt::Display for ConnectError {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
try!(fmt.write_str(error::Error::description(self))); fmt.write_str(error::Error::description(self))?;
match *self { match *self {
ConnectError::ConnectParams(ref msg) => write!(fmt, ": {}", msg), ConnectError::ConnectParams(ref msg) => write!(fmt, ": {}", msg),
ConnectError::Db(ref err) => write!(fmt, ": {}", err), ConnectError::Db(ref err) => write!(fmt, ": {}", err),

2
postgres-shared/src/params/mod.rs
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@ -78,7 +78,7 @@ impl IntoConnectParams for Url {
fn into_connect_params(self) -> Result<ConnectParams, Box<Error + Sync + Send>> { fn into_connect_params(self) -> Result<ConnectParams, Box<Error + Sync + Send>> {
let Url { host, port, user, path: url::Path { mut path, query: options, .. }, .. } = self; let Url { host, port, user, path: url::Path { mut path, query: options, .. }, .. } = self;
let maybe_path = try!(url::decode_component(&host)); let maybe_path = url::decode_component(&host)?;
let target = if maybe_path.starts_with('/') { let target = if maybe_path.starts_with('/') {
ConnectTarget::Unix(PathBuf::from(maybe_path)) ConnectTarget::Unix(PathBuf::from(maybe_path))
} else { } else {

26
postgres-shared/src/params/url.rs
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@ -51,17 +51,17 @@ impl Url {
pub fn parse(rawurl: &str) -> DecodeResult<Url> { pub fn parse(rawurl: &str) -> DecodeResult<Url> {
// scheme // scheme
let (scheme, rest) = try!(get_scheme(rawurl)); let (scheme, rest) = get_scheme(rawurl)?;
// authority // authority
let (userinfo, host, port, rest) = try!(get_authority(rest)); let (userinfo, host, port, rest) = get_authority(rest)?;
// path // path
let has_authority = !host.is_empty(); let has_authority = !host.is_empty();
let (path, rest) = try!(get_path(rest, has_authority)); let (path, rest) = get_path(rest, has_authority)?;
// query and fragment // query and fragment
let (query, fragment) = try!(get_query_fragment(rest)); let (query, fragment) = get_query_fragment(rest)?;
let url = Url::new(scheme.to_owned(), let url = Url::new(scheme.to_owned(),
userinfo, userinfo,
@ -84,10 +84,10 @@ impl Path {
} }
pub fn parse(rawpath: &str) -> DecodeResult<Path> { pub fn parse(rawpath: &str) -> DecodeResult<Path> {
let (path, rest) = try!(get_path(rawpath, false)); let (path, rest) = get_path(rawpath, false)?;
// query and fragment // query and fragment
let (query, fragment) = try!(get_query_fragment(&rest)); let (query, fragment) = get_query_fragment(&rest)?;
Ok(Path { Ok(Path {
path: path, path: path,
@ -177,7 +177,7 @@ fn query_from_str(rawquery: &str) -> DecodeResult<Query> {
if !rawquery.is_empty() { if !rawquery.is_empty() {
for p in rawquery.split('&') { for p in rawquery.split('&') {
let (k, v) = split_char_first(p, '='); let (k, v) = split_char_first(p, '=');
query.push((try!(decode_component(k)), try!(decode_component(v)))); query.push((decode_component(k)?, decode_component(v)?));
} }
} }
@ -316,13 +316,13 @@ fn get_authority(rawurl: &str) -> DecodeResult<(Option<UserInfo>, &str, Option<u
colon_count = 0; // reset count colon_count = 0; // reset count
match st { match st {
State::Start => { State::Start => {
let user = try!(decode_component(&rawurl[begin..i])); let user = decode_component(&rawurl[begin..i])?;
userinfo = Some(UserInfo::new(user, None)); userinfo = Some(UserInfo::new(user, None));
st = State::InHost; st = State::InHost;
} }
State::PassHostPort => { State::PassHostPort => {
let user = try!(decode_component(&rawurl[begin..pos])); let user = decode_component(&rawurl[begin..pos])?;
let pass = try!(decode_component(&rawurl[pos + 1..i])); let pass = decode_component(&rawurl[pos + 1..i])?;
userinfo = Some(UserInfo::new(user, Some(pass))); userinfo = Some(UserInfo::new(user, Some(pass)));
st = State::InHost; st = State::InHost;
} }
@ -392,7 +392,7 @@ fn get_path(rawurl: &str, is_authority: bool) -> DecodeResult<(String, &str)> {
if is_authority && end != 0 && !rawurl.starts_with('/') { if is_authority && end != 0 && !rawurl.starts_with('/') {
Err("Non-empty path must begin with '/' in presence of authority.".to_owned()) Err("Non-empty path must begin with '/' in presence of authority.".to_owned())
} else { } else {
Ok((try!(decode_component(&rawurl[0..end])), &rawurl[end..len])) Ok((decode_component(&rawurl[0..end])?, &rawurl[end..len]))
} }
} }
@ -403,11 +403,11 @@ fn get_query_fragment(rawurl: &str) -> DecodeResult<(Query, Option<String>)> {
// Parse the fragment if available // Parse the fragment if available
let fragment = match raw_fragment { let fragment = match raw_fragment {
"" => None, "" => None,
raw => Some(try!(decode_component(raw))), raw => Some(decode_component(raw)?),
}; };
match before_fragment.chars().next() { match before_fragment.chars().next() {
Some('?') => Ok((try!(query_from_str(&before_fragment[1..])), fragment)), Some('?') => Ok((query_from_str(&before_fragment[1..])?, fragment)),
None => Ok((vec![], fragment)), None => Ok((vec![], fragment)),
_ => Err(format!("Query didn't start with '?': '{}..'", before_fragment)), _ => Err(format!("Query didn't start with '?': '{}..'", before_fragment)),
} }

2
postgres-shared/src/rows.rs
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@ -60,7 +60,7 @@ impl<'a> FromFallibleIterator<Option<&'a [u8]>> for RowData {
indices: Vec::with_capacity(it.size_hint().0), indices: Vec::with_capacity(it.size_hint().0),
}; };
while let Some(cell) = try!(it.next()) { while let Some(cell) = it.next()? {
let index = match cell { let index = match cell {
Some(cell) => { Some(cell) => {
let base = row.buf.len(); let base = row.buf.len();

4
postgres-shared/src/types/bit_vec.rs
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@ -8,7 +8,7 @@ use types::{FromSql, ToSql, IsNull, Type};
impl FromSql for BitVec { impl FromSql for BitVec {
fn from_sql(_: &Type, raw: &[u8]) -> Result<BitVec, Box<Error + Sync + Send>> { fn from_sql(_: &Type, raw: &[u8]) -> Result<BitVec, Box<Error + Sync + Send>> {
let varbit = try!(types::varbit_from_sql(raw)); let varbit = types::varbit_from_sql(raw)?;
let mut bitvec = BitVec::from_bytes(varbit.bytes()); let mut bitvec = BitVec::from_bytes(varbit.bytes());
while bitvec.len() > varbit.len() { while bitvec.len() > varbit.len() {
bitvec.pop(); bitvec.pop();
@ -25,7 +25,7 @@ impl ToSql for BitVec {
_: &Type, _: &Type,
mut out: &mut Vec<u8>) mut out: &mut Vec<u8>)
-> Result<IsNull, Box<Error + Sync + Send>> { -> Result<IsNull, Box<Error + Sync + Send>> {
try!(types::varbit_to_sql(self.len(), self.to_bytes().into_iter(), out)); types::varbit_to_sql(self.len(), self.to_bytes().into_iter(), out)?;
Ok(IsNull::No) Ok(IsNull::No)
} }

12
postgres-shared/src/types/chrono.rs
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@ -15,7 +15,7 @@ impl FromSql for NaiveDateTime {
fn from_sql(_: &Type, fn from_sql(_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<NaiveDateTime, Box<Error + Sync + Send>> { -> Result<NaiveDateTime, Box<Error + Sync + Send>> {
let t = try!(types::timestamp_from_sql(raw)); let t = types::timestamp_from_sql(raw)?;
Ok(base() + Duration::microseconds(t)) Ok(base() + Duration::microseconds(t))
} }
@ -43,7 +43,7 @@ impl FromSql for DateTime<UTC> {
fn from_sql(type_: &Type, fn from_sql(type_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<DateTime<UTC>, Box<Error + Sync + Send>> { -> Result<DateTime<UTC>, Box<Error + Sync + Send>> {
let naive = try!(NaiveDateTime::from_sql(type_, raw)); let naive = NaiveDateTime::from_sql(type_, raw)?;
Ok(DateTime::from_utc(naive, UTC)) Ok(DateTime::from_utc(naive, UTC))
} }
@ -66,7 +66,7 @@ impl FromSql for DateTime<Local> {
fn from_sql(type_: &Type, fn from_sql(type_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<DateTime<Local>, Box<Error + Sync + Send>> { -> Result<DateTime<Local>, Box<Error + Sync + Send>> {
let utc = try!(DateTime::<UTC>::from_sql(type_, raw)); let utc = DateTime::<UTC>::from_sql(type_, raw)?;
Ok(utc.with_timezone(&Local)) Ok(utc.with_timezone(&Local))
} }
@ -89,7 +89,7 @@ impl FromSql for DateTime<FixedOffset> {
fn from_sql(type_: &Type, fn from_sql(type_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<DateTime<FixedOffset>, Box<Error + Sync + Send>> { -> Result<DateTime<FixedOffset>, Box<Error + Sync + Send>> {
let utc = try!(DateTime::<UTC>::from_sql(type_, raw)); let utc = DateTime::<UTC>::from_sql(type_, raw)?;
Ok(utc.with_timezone(&FixedOffset::east(0))) Ok(utc.with_timezone(&FixedOffset::east(0)))
} }
@ -112,7 +112,7 @@ impl FromSql for NaiveDate {
fn from_sql(_: &Type, fn from_sql(_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<NaiveDate, Box<Error + Sync + Send>> { -> Result<NaiveDate, Box<Error + Sync + Send>> {
let jd = try!(types::date_from_sql(raw)); let jd = types::date_from_sql(raw)?;
Ok(base().date() + Duration::days(jd as i64)) Ok(base().date() + Duration::days(jd as i64))
} }
@ -141,7 +141,7 @@ impl FromSql for NaiveTime {
fn from_sql(_: &Type, fn from_sql(_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<NaiveTime, Box<Error + Sync + Send>> { -> Result<NaiveTime, Box<Error + Sync + Send>> {
let usec = try!(types::time_from_sql(raw)); let usec = types::time_from_sql(raw)?;
Ok(NaiveTime::from_hms(0, 0, 0) + Duration::microseconds(usec)) Ok(NaiveTime::from_hms(0, 0, 0) + Duration::microseconds(usec))
} }

2
postgres-shared/src/types/eui48.rs
View File

@ -10,7 +10,7 @@ impl FromSql for MacAddress {
fn from_sql(_: &Type, fn from_sql(_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<MacAddress, Box<Error + Sync + Send>> { -> Result<MacAddress, Box<Error + Sync + Send>> {
let bytes = try!(types::macaddr_from_sql(raw)); let bytes = types::macaddr_from_sql(raw)?;
Ok(MacAddress::new(bytes)) Ok(MacAddress::new(bytes))
} }

17
postgres-shared/src/types/mod.rs
View File

@ -343,8 +343,8 @@ impl<T: FromSql> FromSql for Vec<T> {
_ => panic!("expected array type"), _ => panic!("expected array type"),
}; };
let array = try!(types::array_from_sql(raw)); let array = types::array_from_sql(raw)?;
if try!(array.dimensions().count()) > 1 { if array.dimensions().count()? > 1 {
return Err("array contains too many dimensions".into()); return Err("array contains too many dimensions".into());
} }
@ -412,7 +412,7 @@ impl FromSql for HashMap<String, Option<String>> {
fn from_sql(_: &Type, fn from_sql(_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<HashMap<String, Option<String>>, Box<Error + Sync + Send>> { -> Result<HashMap<String, Option<String>>, Box<Error + Sync + Send>> {
try!(types::hstore_from_sql(raw)) types::hstore_from_sql(raw)?
.map(|(k, v)| (k.to_owned(), v.map(str::to_owned))) .map(|(k, v)| (k.to_owned(), v.map(str::to_owned)))
.collect() .collect()
} }
@ -564,21 +564,21 @@ impl<'a, T: ToSql> ToSql for &'a [T] {
}; };
let dimension = ArrayDimension { let dimension = ArrayDimension {
len: try!(downcast(self.len())), len: downcast(self.len())?,
lower_bound: 1, lower_bound: 1,
}; };
try!(types::array_to_sql(Some(dimension), types::array_to_sql(Some(dimension),
true, true,
member_type.oid(), member_type.oid(),
self.iter(), self.iter(),
|e, w| { |e, w| {
match try!(e.to_sql(member_type, w)) { match e.to_sql(member_type, w)? {
IsNull::No => Ok(postgres_protocol::IsNull::No), IsNull::No => Ok(postgres_protocol::IsNull::No),
IsNull::Yes => Ok(postgres_protocol::IsNull::Yes), IsNull::Yes => Ok(postgres_protocol::IsNull::Yes),
} }
}, },
w)); w)?;
Ok(IsNull::No) Ok(IsNull::No)
} }
@ -703,8 +703,7 @@ impl ToSql for HashMap<String, Option<String>> {
_: &Type, _: &Type,
w: &mut Vec<u8>) w: &mut Vec<u8>)
-> Result<IsNull, Box<Error + Sync + Send>> { -> Result<IsNull, Box<Error + Sync + Send>> {
try!(types::hstore_to_sql(self.iter().map(|(k, v)| (&**k, v.as_ref().map(|v| &**v))), types::hstore_to_sql(self.iter().map(|(k, v)| (&**k, v.as_ref().map(|v| &**v))), w)?;
w));
Ok(IsNull::No) Ok(IsNull::No)
} }

4
postgres-shared/src/types/rustc_serialize.rs
View File

@ -12,7 +12,7 @@ impl FromSql for json::Json {
-> Result<json::Json, Box<Error + Sync + Send>> { -> Result<json::Json, Box<Error + Sync + Send>> {
if let Type::Jsonb = *ty { if let Type::Jsonb = *ty {
let mut b = [0; 1]; let mut b = [0; 1];
try!(raw.read_exact(&mut b)); raw.read_exact(&mut b)?;
// We only support version 1 of the jsonb binary format // We only support version 1 of the jsonb binary format
if b[0] != 1 { if b[0] != 1 {
return Err("unsupported JSONB encoding version".into()); return Err("unsupported JSONB encoding version".into());
@ -32,7 +32,7 @@ impl ToSql for json::Json {
if let Type::Jsonb = *ty { if let Type::Jsonb = *ty {
out.push(1); out.push(1);
} }
try!(write!(out, "{}", self)); write!(out, "{}", self)?;
Ok(IsNull::No) Ok(IsNull::No)
} }

4
postgres-shared/src/types/serde_json.rs
View File

@ -12,7 +12,7 @@ impl FromSql for Value {
-> Result<Value, Box<Error + Sync + Send>> { -> Result<Value, Box<Error + Sync + Send>> {
if let Type::Jsonb = *ty { if let Type::Jsonb = *ty {
let mut b = [0; 1]; let mut b = [0; 1];
try!(raw.read_exact(&mut b)); raw.read_exact(&mut b)?;
// We only support version 1 of the jsonb binary format // We only support version 1 of the jsonb binary format
if b[0] != 1 { if b[0] != 1 {
return Err("unsupported JSONB encoding version".into()); return Err("unsupported JSONB encoding version".into());
@ -32,7 +32,7 @@ impl ToSql for Value {
if let Type::Jsonb = *ty { if let Type::Jsonb = *ty {
out.push(1); out.push(1);
} }
try!(write!(out, "{}", self)); write!(out, "{}", self)?;
Ok(IsNull::No) Ok(IsNull::No)
} }

4
postgres-shared/src/types/special.rs
View File

@ -19,7 +19,7 @@ impl<T: FromSql> FromSql for Date<T> {
fn from_sql(ty: &Type, fn from_sql(ty: &Type,
raw: &[u8]) raw: &[u8])
-> Result<Self, Box<Error + Sync + Send>> { -> Result<Self, Box<Error + Sync + Send>> {
match try!(types::date_from_sql(raw)) { match types::date_from_sql(raw)? {
i32::MAX => Ok(Date::PosInfinity), i32::MAX => Ok(Date::PosInfinity),
i32::MIN => Ok(Date::NegInfinity), i32::MIN => Ok(Date::NegInfinity),
_ => T::from_sql(ty, raw).map(Date::Value), _ => T::from_sql(ty, raw).map(Date::Value),
@ -68,7 +68,7 @@ impl<T: FromSql> FromSql for Timestamp<T> {
fn from_sql(ty: &Type, fn from_sql(ty: &Type,
raw: &[u8]) raw: &[u8])
-> Result<Self, Box<Error + Sync + Send>> { -> Result<Self, Box<Error + Sync + Send>> {
match try!(types::timestamp_from_sql(raw)) { match types::timestamp_from_sql(raw)? {
i64::MAX => Ok(Timestamp::PosInfinity), i64::MAX => Ok(Timestamp::PosInfinity),
i64::MIN => Ok(Timestamp::NegInfinity), i64::MIN => Ok(Timestamp::NegInfinity),
_ => T::from_sql(ty, raw).map(Timestamp::Value), _ => T::from_sql(ty, raw).map(Timestamp::Value),

2
postgres-shared/src/types/time.rs
View File

@ -16,7 +16,7 @@ impl FromSql for Timespec {
fn from_sql(_: &Type, fn from_sql(_: &Type,
raw: &[u8]) raw: &[u8])
-> Result<Timespec, Box<Error + Sync + Send>> { -> Result<Timespec, Box<Error + Sync + Send>> {
let t = try!(types::timestamp_from_sql(raw)); let t = types::timestamp_from_sql(raw)?;
let mut sec = t / USEC_PER_SEC + TIME_SEC_CONVERSION; let mut sec = t / USEC_PER_SEC + TIME_SEC_CONVERSION;
let mut usec = t % USEC_PER_SEC; let mut usec = t % USEC_PER_SEC;

2
postgres-shared/src/types/type_gen.rs
View File

@ -332,7 +332,7 @@ impl fmt::Display for Type {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
match self.schema() { match self.schema() {
"public" | "pg_catalog" => {} "public" | "pg_catalog" => {}
schema => try!(write!(fmt, "{}.", schema)), schema => write!(fmt, "{}.", schema)?,
} }
fmt.write_str(self.name()) fmt.write_str(self.name())
} }

2
postgres-shared/src/types/uuid.rs
View File

@ -8,7 +8,7 @@ use types::{FromSql, ToSql, Type, IsNull};
impl FromSql for Uuid { impl FromSql for Uuid {
fn from_sql(_: &Type, raw: &[u8]) -> Result<Uuid, Box<Error + Sync + Send>> { fn from_sql(_: &Type, raw: &[u8]) -> Result<Uuid, Box<Error + Sync + Send>> {
let bytes = try!(types::uuid_from_sql(raw)); let bytes = types::uuid_from_sql(raw)?;
Ok(Uuid::from_bytes(&bytes).unwrap()) Ok(Uuid::from_bytes(&bytes).unwrap())
} }

2
postgres/src/error.rs
View File

@ -19,7 +19,7 @@ pub enum Error {
impl fmt::Display for Error { impl fmt::Display for Error {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
try!(fmt.write_str(error::Error::description(self))); fmt.write_str(error::Error::description(self))?;
match *self { match *self {
Error::Db(ref err) => write!(fmt, ": {}", err), Error::Db(ref err) => write!(fmt, ": {}", err),
Error::Io(ref err) => write!(fmt, ": {}", err), Error::Io(ref err) => write!(fmt, ": {}", err),

276
postgres/src/lib.rs
View File

@ -185,13 +185,13 @@ pub fn cancel_query<T>(params: T,
-> result::Result<(), ConnectError> -> result::Result<(), ConnectError>
where T: IntoConnectParams where T: IntoConnectParams
{ {
let params = try!(params.into_connect_params().map_err(ConnectError::ConnectParams)); let params = params.into_connect_params().map_err(ConnectError::ConnectParams)?;
let mut socket = try!(priv_io::initialize_stream(&params, tls)); let mut socket = priv_io::initialize_stream(&params, tls)?;
let mut buf = vec![]; let mut buf = vec![];
frontend::cancel_request(data.process_id, data.secret_key, &mut buf); frontend::cancel_request(data.process_id, data.secret_key, &mut buf);
try!(socket.write_all(&buf)); socket.write_all(&buf)?;
try!(socket.flush()); socket.flush()?;
Ok(()) Ok(())
} }
@ -252,8 +252,8 @@ impl InnerConnection {
fn connect<T>(params: T, tls: TlsMode) -> result::Result<InnerConnection, ConnectError> fn connect<T>(params: T, tls: TlsMode) -> result::Result<InnerConnection, ConnectError>
where T: IntoConnectParams where T: IntoConnectParams
{ {
let params = try!(params.into_connect_params().map_err(ConnectError::ConnectParams)); let params = params.into_connect_params().map_err(ConnectError::ConnectParams)?;
let stream = try!(priv_io::initialize_stream(&params, tls)); let stream = priv_io::initialize_stream(&params, tls)?;
let ConnectParams { user, database, mut options, .. } = params; let ConnectParams { user, database, mut options, .. } = params;
@ -296,13 +296,13 @@ impl InnerConnection {
} }
let options = options.iter().map(|&(ref a, ref b)| (&**a, &**b)); let options = options.iter().map(|&(ref a, ref b)| (&**a, &**b));
try!(conn.stream.write_message(|buf| frontend::startup_message(options, buf))); conn.stream.write_message(|buf| frontend::startup_message(options, buf))?;
try!(conn.stream.flush()); conn.stream.flush()?;
try!(conn.handle_auth(user)); conn.handle_auth(user)?;
loop { loop {
match try!(conn.read_message()) { match conn.read_message()? {
backend::Message::BackendKeyData(body) => { backend::Message::BackendKeyData(body) => {
conn.cancel_data.process_id = body.process_id(); conn.cancel_data.process_id = body.process_id();
conn.cancel_data.secret_key = body.secret_key(); conn.cancel_data.secret_key = body.secret_key();
@ -328,8 +328,8 @@ impl InnerConnection {
} }
} }
backend::Message::ParameterStatus(body) => { backend::Message::ParameterStatus(body) => {
self.parameters.insert(try!(body.name()).to_owned(), self.parameters.insert(body.name()?.to_owned(),
try!(body.value()).to_owned()); body.value()?.to_owned());
} }
val => return Ok(val), val => return Ok(val),
} }
@ -348,8 +348,8 @@ impl InnerConnection {
} }
} }
Some(backend::Message::ParameterStatus(body)) => { Some(backend::Message::ParameterStatus(body)) => {
self.parameters.insert(try!(body.name()).to_owned(), self.parameters.insert(body.name()?.to_owned(),
try!(body.value()).to_owned()); body.value()?.to_owned());
} }
val => return Ok(val), val => return Ok(val),
} }
@ -367,8 +367,8 @@ impl InnerConnection {
} }
} }
Some(backend::Message::ParameterStatus(body)) => { Some(backend::Message::ParameterStatus(body)) => {
self.parameters.insert(try!(body.name()).to_owned(), self.parameters.insert(body.name()?.to_owned(),
try!(body.value()).to_owned()); body.value()?.to_owned());
} }
val => return Ok(val), val => return Ok(val),
} }
@ -377,12 +377,12 @@ impl InnerConnection {
fn read_message(&mut self) -> io::Result<backend::Message<Vec<u8>>> { fn read_message(&mut self) -> io::Result<backend::Message<Vec<u8>>> {
loop { loop {
match try!(self.read_message_with_notification()) { match self.read_message_with_notification()? {
backend::Message::NotificationResponse(body) => { backend::Message::NotificationResponse(body) => {
self.notifications.push_back(Notification { self.notifications.push_back(Notification {
process_id: body.process_id(), process_id: body.process_id(),
channel: try!(body.channel()).to_owned(), channel: body.channel()?.to_owned(),
payload: try!(body.message()).to_owned(), payload: body.message()?.to_owned(),
}) })
} }
val => return Ok(val), val => return Ok(val),
@ -391,24 +391,24 @@ impl InnerConnection {
} }
fn handle_auth(&mut self, user: UserInfo) -> result::Result<(), ConnectError> { fn handle_auth(&mut self, user: UserInfo) -> result::Result<(), ConnectError> {
match try!(self.read_message()) { match self.read_message()? {
backend::Message::AuthenticationOk => return Ok(()), backend::Message::AuthenticationOk => return Ok(()),
backend::Message::AuthenticationCleartextPassword => { backend::Message::AuthenticationCleartextPassword => {
let pass = try!(user.password.ok_or_else(|| { let pass = user.password.ok_or_else(|| {
ConnectError::ConnectParams("a password was requested but not provided".into()) ConnectError::ConnectParams("a password was requested but not provided".into())
})); })?;
try!(self.stream.write_message(|buf| frontend::password_message(&pass, buf))); self.stream.write_message(|buf| frontend::password_message(&pass, buf))?;
try!(self.stream.flush()); self.stream.flush()?;
} }
backend::Message::AuthenticationMd5Password(body) => { backend::Message::AuthenticationMd5Password(body) => {
let pass = try!(user.password.ok_or_else(|| { let pass = user.password.ok_or_else(|| {
ConnectError::ConnectParams("a password was requested but not provided".into()) ConnectError::ConnectParams("a password was requested but not provided".into())
})); })?;
let output = authentication::md5_hash(user.user.as_bytes(), let output = authentication::md5_hash(user.user.as_bytes(),
pass.as_bytes(), pass.as_bytes(),
body.salt()); body.salt());
try!(self.stream.write_message(|buf| frontend::password_message(&output, buf))); self.stream.write_message(|buf| frontend::password_message(&output, buf))?;
try!(self.stream.flush()); self.stream.flush()?;
} }
backend::Message::AuthenticationKerberosV5 | backend::Message::AuthenticationKerberosV5 |
backend::Message::AuthenticationScmCredential | backend::Message::AuthenticationScmCredential |
@ -421,7 +421,7 @@ impl InnerConnection {
_ => return Err(ConnectError::Io(bad_response())), _ => return Err(ConnectError::Io(bad_response())),
} }
match try!(self.read_message()) { match self.read_message()? {
backend::Message::AuthenticationOk => Ok(()), backend::Message::AuthenticationOk => Ok(()),
backend::Message::ErrorResponse(body) => Err(connect_err(&mut body.fields())), backend::Message::ErrorResponse(body) => Err(connect_err(&mut body.fields())),
_ => Err(ConnectError::Io(bad_response())), _ => Err(ConnectError::Io(bad_response())),
@ -435,47 +435,47 @@ impl InnerConnection {
fn raw_prepare(&mut self, stmt_name: &str, query: &str) -> Result<(Vec<Type>, Vec<Column>)> { fn raw_prepare(&mut self, stmt_name: &str, query: &str) -> Result<(Vec<Type>, Vec<Column>)> {
debug!("preparing query with name `{}`: {}", stmt_name, query); debug!("preparing query with name `{}`: {}", stmt_name, query);
try!(self.stream.write_message(|buf| frontend::parse(stmt_name, query, None, buf))); self.stream.write_message(|buf| frontend::parse(stmt_name, query, None, buf))?;
try!(self.stream.write_message(|buf| frontend::describe(b'S', stmt_name, buf))); self.stream.write_message(|buf| frontend::describe(b'S', stmt_name, buf))?;
try!(self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(self.stream.flush()); self.stream.flush()?;
match try!(self.read_message()) { match self.read_message()? {
backend::Message::ParseComplete => {} backend::Message::ParseComplete => {}
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(self.wait_for_ready()); self.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
_ => bad_response!(self), _ => bad_response!(self),
} }
let raw_param_types = match try!(self.read_message()) { let raw_param_types = match self.read_message()? {
backend::Message::ParameterDescription(body) => body, backend::Message::ParameterDescription(body) => body,
_ => bad_response!(self), _ => bad_response!(self),
}; };
let raw_columns = match try!(self.read_message()) { let raw_columns = match self.read_message()? {
backend::Message::RowDescription(body) => Some(body), backend::Message::RowDescription(body) => Some(body),
backend::Message::NoData => None, backend::Message::NoData => None,
_ => bad_response!(self), _ => bad_response!(self),
}; };
try!(self.wait_for_ready()); self.wait_for_ready()?;
let param_types = try!(raw_param_types let param_types = raw_param_types
.parameters() .parameters()
.map_err(Into::into) .map_err(Into::into)
.and_then(|oid| self.get_type(oid)) .and_then(|oid| self.get_type(oid))
.collect()); .collect()?;
let columns = match raw_columns { let columns = match raw_columns {
Some(body) => { Some(body) => {
try!(body.fields() body.fields()
.and_then(|field| { .and_then(|field| {
Ok(Column::new(field.name().to_owned(), Ok(Column::new(field.name().to_owned(),
try!(self.get_type(field.type_oid())))) self.get_type(field.type_oid())?))
}) })
.collect()) .collect()?
} }
None => vec![], None => vec![],
}; };
@ -488,7 +488,7 @@ impl InnerConnection {
{ {
let more_rows; let more_rows;
loop { loop {
match try!(self.read_message()) { match self.read_message()? {
backend::Message::EmptyQueryResponse | backend::Message::EmptyQueryResponse |
backend::Message::CommandComplete(_) => { backend::Message::CommandComplete(_) => {
more_rows = false; more_rows = false;
@ -498,22 +498,22 @@ impl InnerConnection {
more_rows = true; more_rows = true;
break; break;
} }
backend::Message::DataRow(body) => consumer(try!(body.values().collect())), backend::Message::DataRow(body) => consumer(body.values().collect()?),
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(self.wait_for_ready()); self.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
backend::Message::CopyInResponse(_) => { backend::Message::CopyInResponse(_) => {
try!(self.stream.write_message(|buf| { self.stream.write_message(|buf| {
frontend::copy_fail("COPY queries cannot be directly executed", buf) frontend::copy_fail("COPY queries cannot be directly executed", buf)
})); })?;
try!(self.stream self.stream
.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); .write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(self.stream.flush()); self.stream.flush()?;
} }
backend::Message::CopyOutResponse(_) => { backend::Message::CopyOutResponse(_) => {
loop { loop {
if let backend::Message::ReadyForQuery(_) = try!(self.read_message()) { if let backend::Message::ReadyForQuery(_) = self.read_message()? {
break; break;
} }
} }
@ -527,7 +527,7 @@ impl InnerConnection {
} }
} }
} }
try!(self.wait_for_ready()); self.wait_for_ready()?;
Ok(more_rows) Ok(more_rows)
} }
@ -569,14 +569,14 @@ impl InnerConnection {
} }
} }
try!(self.stream.write_message(|buf| frontend::execute(portal_name, row_limit, buf))); self.stream.write_message(|buf| frontend::execute(portal_name, row_limit, buf))?;
try!(self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(self.stream.flush()); self.stream.flush()?;
match try!(self.read_message()) { match self.read_message()? {
backend::Message::BindComplete => Ok(()), backend::Message::BindComplete => Ok(()),
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(self.wait_for_ready()); self.wait_for_ready()?;
Err(err(&mut body.fields())) Err(err(&mut body.fields()))
} }
_ => { _ => {
@ -594,7 +594,7 @@ impl InnerConnection {
fn prepare<'a>(&mut self, query: &str, conn: &'a Connection) -> Result<Statement<'a>> { fn prepare<'a>(&mut self, query: &str, conn: &'a Connection) -> Result<Statement<'a>> {
let stmt_name = self.make_stmt_name(); let stmt_name = self.make_stmt_name();
let (param_types, columns) = try!(self.raw_prepare(&stmt_name, query)); let (param_types, columns) = self.raw_prepare(&stmt_name, query)?;
let info = Arc::new(StatementInfo { let info = Arc::new(StatementInfo {
name: stmt_name, name: stmt_name,
param_types: param_types, param_types: param_types,
@ -610,7 +610,7 @@ impl InnerConnection {
Some(info) => info, Some(info) => info,
None => { None => {
let stmt_name = self.make_stmt_name(); let stmt_name = self.make_stmt_name();
let (param_types, columns) = try!(self.raw_prepare(&stmt_name, query)); let (param_types, columns) = self.raw_prepare(&stmt_name, query)?;
let info = Arc::new(StatementInfo { let info = Arc::new(StatementInfo {
name: stmt_name, name: stmt_name,
param_types: param_types, param_types: param_types,
@ -625,15 +625,15 @@ impl InnerConnection {
} }
fn close_statement(&mut self, name: &str, type_: u8) -> Result<()> { fn close_statement(&mut self, name: &str, type_: u8) -> Result<()> {
try!(self.stream.write_message(|buf| frontend::close(type_, name, buf))); self.stream.write_message(|buf| frontend::close(type_, name, buf))?;
try!(self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(self.stream.flush()); self.stream.flush()?;
let resp = match try!(self.read_message()) { let resp = match self.read_message()? {
backend::Message::CloseComplete => Ok(()), backend::Message::CloseComplete => Ok(()),
backend::Message::ErrorResponse(body) => Err(err(&mut body.fields())), backend::Message::ErrorResponse(body) => Err(err(&mut body.fields())),
_ => bad_response!(self), _ => bad_response!(self),
}; };
try!(self.wait_for_ready()); self.wait_for_ready()?;
resp resp
} }
@ -646,7 +646,7 @@ impl InnerConnection {
return Ok(Type::Other(ty.clone())); return Ok(Type::Other(ty.clone()));
} }
let ty = try!(self.read_type(oid)); let ty = self.read_type(oid)?;
self.unknown_types.insert(oid, ty.clone()); self.unknown_types.insert(oid, ty.clone());
Ok(Type::Other(ty)) Ok(Type::Other(ty))
} }
@ -668,13 +668,13 @@ impl InnerConnection {
Ok(..) => {} Ok(..) => {}
// Range types weren't added until Postgres 9.2, so pg_range may not exist // Range types weren't added until Postgres 9.2, so pg_range may not exist
Err(Error::Db(ref e)) if e.code == SqlState::UndefinedTable => { Err(Error::Db(ref e)) if e.code == SqlState::UndefinedTable => {
try!(self.raw_prepare(TYPEINFO_QUERY, self.raw_prepare(TYPEINFO_QUERY,
"SELECT t.typname, t.typtype, t.typelem, NULL::OID, \ "SELECT t.typname, t.typtype, t.typelem, NULL::OID, \
t.typbasetype, n.nspname, t.typrelid \ t.typbasetype, n.nspname, t.typrelid \
FROM pg_catalog.pg_type t \ FROM pg_catalog.pg_type t \
INNER JOIN pg_catalog.pg_namespace n \ INNER JOIN pg_catalog.pg_namespace n \
ON t.typnamespace = n.oid \ ON t.typnamespace = n.oid \
WHERE t.oid = $1")); WHERE t.oid = $1")?;
} }
Err(e) => return Err(e), Err(e) => return Err(e),
} }
@ -685,46 +685,46 @@ impl InnerConnection {
#[allow(if_not_else)] #[allow(if_not_else)]
fn read_type(&mut self, oid: Oid) -> Result<Other> { fn read_type(&mut self, oid: Oid) -> Result<Other> {
try!(self.setup_typeinfo_query()); self.setup_typeinfo_query()?;
try!(self.raw_execute(TYPEINFO_QUERY, "", 0, &[Type::Oid], &[&oid])); self.raw_execute(TYPEINFO_QUERY, "", 0, &[Type::Oid], &[&oid])?;
let mut row = None; let mut row = None;
try!(self.read_rows(|r| row = Some(r))); self.read_rows(|r| row = Some(r))?;
let get_raw = |i: usize| { let get_raw = |i: usize| {
row.as_ref().and_then(|r| r.get(i)) row.as_ref().and_then(|r| r.get(i))
}; };
let (name, type_, elem_oid, rngsubtype, basetype, schema, relid) = { let (name, type_, elem_oid, rngsubtype, basetype, schema, relid) = {
let name = try!(String::from_sql_nullable(&Type::Name, get_raw(0)) let name = String::from_sql_nullable(&Type::Name, get_raw(0))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
let type_ = try!(i8::from_sql_nullable(&Type::Char, get_raw(1)) let type_ = i8::from_sql_nullable(&Type::Char, get_raw(1))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
let elem_oid = try!(Oid::from_sql_nullable(&Type::Oid, get_raw(2)) let elem_oid = Oid::from_sql_nullable(&Type::Oid, get_raw(2))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
let rngsubtype = try!(Option::<Oid>::from_sql_nullable(&Type::Oid, get_raw(3)) let rngsubtype = Option::<Oid>::from_sql_nullable(&Type::Oid, get_raw(3))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
let basetype = try!(Oid::from_sql_nullable(&Type::Oid, get_raw(4)) let basetype = Oid::from_sql_nullable(&Type::Oid, get_raw(4))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
let schema = try!(String::from_sql_nullable(&Type::Name, get_raw(5)) let schema = String::from_sql_nullable(&Type::Name, get_raw(5))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
let relid = try!(Oid::from_sql_nullable(&Type::Oid, get_raw(6)) let relid = Oid::from_sql_nullable(&Type::Oid, get_raw(6))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
(name, type_, elem_oid, rngsubtype, basetype, schema, relid) (name, type_, elem_oid, rngsubtype, basetype, schema, relid)
}; };
let kind = if type_ == b'e' as i8 { let kind = if type_ == b'e' as i8 {
Kind::Enum(try!(self.read_enum_variants(oid))) Kind::Enum(self.read_enum_variants(oid)?)
} else if type_ == b'p' as i8 { } else if type_ == b'p' as i8 {
Kind::Pseudo Kind::Pseudo
} else if basetype != 0 { } else if basetype != 0 {
Kind::Domain(try!(self.get_type(basetype))) Kind::Domain(self.get_type(basetype)?)
} else if elem_oid != 0 { } else if elem_oid != 0 {
Kind::Array(try!(self.get_type(elem_oid))) Kind::Array(self.get_type(elem_oid)?)
} else if relid != 0 { } else if relid != 0 {
Kind::Composite(try!(self.read_composite_fields(relid))) Kind::Composite(self.read_composite_fields(relid)?)
} else { } else {
match rngsubtype { match rngsubtype {
Some(oid) => Kind::Range(try!(self.get_type(oid))), Some(oid) => Kind::Range(self.get_type(oid)?),
None => Kind::Simple, None => Kind::Simple,
} }
}; };
@ -745,11 +745,11 @@ impl InnerConnection {
Ok(..) => {} Ok(..) => {}
// Postgres 9.0 doesn't have enumsortorder // Postgres 9.0 doesn't have enumsortorder
Err(Error::Db(ref e)) if e.code == SqlState::UndefinedColumn => { Err(Error::Db(ref e)) if e.code == SqlState::UndefinedColumn => {
try!(self.raw_prepare(TYPEINFO_ENUM_QUERY, self.raw_prepare(TYPEINFO_ENUM_QUERY,
"SELECT enumlabel \ "SELECT enumlabel \
FROM pg_catalog.pg_enum \ FROM pg_catalog.pg_enum \
WHERE enumtypid = $1 \ WHERE enumtypid = $1 \
ORDER BY oid")); ORDER BY oid")?;
} }
Err(e) => return Err(e), Err(e) => return Err(e),
} }
@ -759,15 +759,15 @@ impl InnerConnection {
} }
fn read_enum_variants(&mut self, oid: Oid) -> Result<Vec<String>> { fn read_enum_variants(&mut self, oid: Oid) -> Result<Vec<String>> {
try!(self.setup_typeinfo_enum_query()); self.setup_typeinfo_enum_query()?;
try!(self.raw_execute(TYPEINFO_ENUM_QUERY, "", 0, &[Type::Oid], &[&oid])); self.raw_execute(TYPEINFO_ENUM_QUERY, "", 0, &[Type::Oid], &[&oid])?;
let mut rows = vec![]; let mut rows = vec![];
try!(self.read_rows(|row| rows.push(row))); self.read_rows(|row| rows.push(row))?;
let mut variants = vec![]; let mut variants = vec![];
for row in rows { for row in rows {
variants.push(try!(String::from_sql_nullable(&Type::Name, row.get(0)) variants.push(String::from_sql_nullable(&Type::Name, row.get(0))
.map_err(Error::Conversion))); .map_err(Error::Conversion)?);
} }
Ok(variants) Ok(variants)
@ -778,34 +778,34 @@ impl InnerConnection {
return Ok(()); return Ok(());
} }
try!(self.raw_prepare(TYPEINFO_COMPOSITE_QUERY, self.raw_prepare(TYPEINFO_COMPOSITE_QUERY,
"SELECT attname, atttypid \ "SELECT attname, atttypid \
FROM pg_catalog.pg_attribute \ FROM pg_catalog.pg_attribute \
WHERE attrelid = $1 \ WHERE attrelid = $1 \
AND NOT attisdropped \ AND NOT attisdropped \
AND attnum > 0 \ AND attnum > 0 \
ORDER BY attnum")); ORDER BY attnum")?;
self.has_typeinfo_composite_query = true; self.has_typeinfo_composite_query = true;
Ok(()) Ok(())
} }
fn read_composite_fields(&mut self, relid: Oid) -> Result<Vec<Field>> { fn read_composite_fields(&mut self, relid: Oid) -> Result<Vec<Field>> {
try!(self.setup_typeinfo_composite_query()); self.setup_typeinfo_composite_query()?;
try!(self.raw_execute(TYPEINFO_COMPOSITE_QUERY, "", 0, &[Type::Oid], &[&relid])); self.raw_execute(TYPEINFO_COMPOSITE_QUERY, "", 0, &[Type::Oid], &[&relid])?;
let mut rows = vec![]; let mut rows = vec![];
try!(self.read_rows(|row| rows.push(row))); self.read_rows(|row| rows.push(row))?;
let mut fields = vec![]; let mut fields = vec![];
for row in rows { for row in rows {
let (name, type_) = { let (name, type_) = {
let name = try!(String::from_sql_nullable(&Type::Name, row.get(0)) let name = String::from_sql_nullable(&Type::Name, row.get(0))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
let type_ = try!(Oid::from_sql_nullable(&Type::Oid, row.get(1)) let type_ = Oid::from_sql_nullable(&Type::Oid, row.get(1))
.map_err(Error::Conversion)); .map_err(Error::Conversion)?;
(name, type_) (name, type_)
}; };
let type_ = try!(self.get_type(type_)); let type_ = self.get_type(type_)?;
fields.push(Field::new(name, type_)); fields.push(Field::new(name, type_));
} }
@ -818,7 +818,7 @@ impl InnerConnection {
#[allow(needless_return)] #[allow(needless_return)]
fn wait_for_ready(&mut self) -> Result<()> { fn wait_for_ready(&mut self) -> Result<()> {
match try!(self.read_message()) { match self.read_message()? {
backend::Message::ReadyForQuery(_) => Ok(()), backend::Message::ReadyForQuery(_) => Ok(()),
_ => bad_response!(self), _ => bad_response!(self),
} }
@ -827,29 +827,29 @@ impl InnerConnection {
fn quick_query(&mut self, query: &str) -> Result<Vec<Vec<Option<String>>>> { fn quick_query(&mut self, query: &str) -> Result<Vec<Vec<Option<String>>>> {
check_desync!(self); check_desync!(self);
debug!("executing query: {}", query); debug!("executing query: {}", query);
try!(self.stream.write_message(|buf| frontend::query(query, buf))); self.stream.write_message(|buf| frontend::query(query, buf))?;
try!(self.stream.flush()); self.stream.flush()?;
let mut result = vec![]; let mut result = vec![];
loop { loop {
match try!(self.read_message()) { match self.read_message()? {
backend::Message::ReadyForQuery(_) => break, backend::Message::ReadyForQuery(_) => break,
backend::Message::DataRow(body) => { backend::Message::DataRow(body) => {
let row = try!(body.values() let row = body.values()
.map(|v| v.map(|v| String::from_utf8_lossy(v).into_owned())) .map(|v| v.map(|v| String::from_utf8_lossy(v).into_owned()))
.collect()); .collect()?;
result.push(row); result.push(row);
} }
backend::Message::CopyInResponse(_) => { backend::Message::CopyInResponse(_) => {
try!(self.stream.write_message(|buf| { self.stream.write_message(|buf| {
frontend::copy_fail("COPY queries cannot be directly executed", buf) frontend::copy_fail("COPY queries cannot be directly executed", buf)
})); })?;
try!(self.stream self.stream
.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); .write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(self.stream.flush()); self.stream.flush()?;
} }
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(self.wait_for_ready()); self.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
_ => {} _ => {}
@ -860,8 +860,8 @@ impl InnerConnection {
fn finish_inner(&mut self) -> Result<()> { fn finish_inner(&mut self) -> Result<()> {
check_desync!(self); check_desync!(self);
try!(self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::terminate(buf)))); self.stream.write_message(|buf| Ok::<(), io::Error>(frontend::terminate(buf)))?;
try!(self.stream.flush()); self.stream.flush()?;
Ok(()) Ok(())
} }
} }
@ -985,7 +985,7 @@ impl Connection {
/// println!("{} rows updated", rows_updated); /// println!("{} rows updated", rows_updated);
/// ``` /// ```
pub fn execute(&self, query: &str, params: &[&ToSql]) -> Result<u64> { pub fn execute(&self, query: &str, params: &[&ToSql]) -> Result<u64> {
let (param_types, columns) = try!(self.0.borrow_mut().raw_prepare("", query)); let (param_types, columns) = self.0.borrow_mut().raw_prepare("", query)?;
let info = Arc::new(StatementInfo { let info = Arc::new(StatementInfo {
name: String::new(), name: String::new(),
param_types: param_types, param_types: param_types,
@ -1021,7 +1021,7 @@ impl Connection {
/// } /// }
/// ``` /// ```
pub fn query<'a>(&'a self, query: &str, params: &[&ToSql]) -> Result<Rows<'a>> { pub fn query<'a>(&'a self, query: &str, params: &[&ToSql]) -> Result<Rows<'a>> {
let (param_types, columns) = try!(self.0.borrow_mut().raw_prepare("", query)); let (param_types, columns) = self.0.borrow_mut().raw_prepare("", query)?;
let info = Arc::new(StatementInfo { let info = Arc::new(StatementInfo {
name: String::new(), name: String::new(),
param_types: param_types, param_types: param_types,
@ -1068,7 +1068,7 @@ impl Connection {
"`transaction` must be called on the active transaction"); "`transaction` must be called on the active transaction");
let mut query = "BEGIN".to_owned(); let mut query = "BEGIN".to_owned();
config.build_command(&mut query); config.build_command(&mut query);
try!(conn.quick_query(&query)); conn.quick_query(&query)?;
conn.trans_depth += 1; conn.trans_depth += 1;
Ok(Transaction::new(self, 1)) Ok(Transaction::new(self, 1))
} }
@ -1128,7 +1128,7 @@ impl Connection {
pub fn transaction_isolation(&self) -> Result<IsolationLevel> { pub fn transaction_isolation(&self) -> Result<IsolationLevel> {
let mut conn = self.0.borrow_mut(); let mut conn = self.0.borrow_mut();
check_desync!(conn); check_desync!(conn);
let result = try!(conn.quick_query("SHOW TRANSACTION ISOLATION LEVEL")); let result = conn.quick_query("SHOW TRANSACTION ISOLATION LEVEL")?;
IsolationLevel::new(result[0][0].as_ref().unwrap()) IsolationLevel::new(result[0][0].as_ref().unwrap())
} }

12
postgres/src/notification.rs
View File

@ -116,8 +116,8 @@ impl<'a> FallibleIterator for Iter<'a> {
Ok(Some(backend::Message::NotificationResponse(body))) => { Ok(Some(backend::Message::NotificationResponse(body))) => {
Ok(Some(Notification { Ok(Some(Notification {
process_id: body.process_id(), process_id: body.process_id(),
channel: try!(body.channel()).to_owned(), channel: body.channel()?.to_owned(),
payload: try!(body.message()).to_owned(), payload: body.message()?.to_owned(),
})) }))
} }
Ok(None) => Ok(None), Ok(None) => Ok(None),
@ -155,8 +155,8 @@ impl<'a> FallibleIterator for BlockingIter<'a> {
Ok(backend::Message::NotificationResponse(body)) => { Ok(backend::Message::NotificationResponse(body)) => {
Ok(Some(Notification { Ok(Some(Notification {
process_id: body.process_id(), process_id: body.process_id(),
channel: try!(body.channel()).to_owned(), channel: body.channel()?.to_owned(),
payload: try!(body.message()).to_owned(), payload: body.message()?.to_owned(),
})) }))
} }
Err(err) => Err(Error::Io(err)), Err(err) => Err(Error::Io(err)),
@ -191,8 +191,8 @@ impl<'a> FallibleIterator for TimeoutIter<'a> {
Ok(Some(backend::Message::NotificationResponse(body))) => { Ok(Some(backend::Message::NotificationResponse(body))) => {
Ok(Some(Notification { Ok(Some(Notification {
process_id: body.process_id(), process_id: body.process_id(),
channel: try!(body.channel()).to_owned(), channel: body.channel()?.to_owned(),
payload: try!(body.message()).to_owned(), payload: body.message()?.to_owned(),
})) }))
} }
Ok(None) => Ok(None), Ok(None) => Ok(None),

32
postgres/src/priv_io.rs
View File

@ -43,26 +43,26 @@ impl MessageStream {
E: From<io::Error> E: From<io::Error>
{ {
self.buf.clear(); self.buf.clear();
try!(f(&mut self.buf)); f(&mut self.buf)?;
self.stream.write_all(&self.buf).map_err(From::from) self.stream.write_all(&self.buf).map_err(From::from)
} }
fn inner_read_message(&mut self, b: u8) -> io::Result<backend::Message<Vec<u8>>> { fn inner_read_message(&mut self, b: u8) -> io::Result<backend::Message<Vec<u8>>> {
self.buf.resize(MESSAGE_HEADER_SIZE, 0); self.buf.resize(MESSAGE_HEADER_SIZE, 0);
self.buf[0] = b; self.buf[0] = b;
try!(self.stream.read_exact(&mut self.buf[1..])); self.stream.read_exact(&mut self.buf[1..])?;
let len = match try!(backend::Message::parse_owned(&self.buf)) { let len = match backend::Message::parse_owned(&self.buf)? {
ParseResult::Complete { message, .. } => return Ok(message), ParseResult::Complete { message, .. } => return Ok(message),
ParseResult::Incomplete { required_size } => Some(required_size.unwrap()), ParseResult::Incomplete { required_size } => Some(required_size.unwrap()),
}; };
if let Some(len) = len { if let Some(len) = len {
self.buf.resize(len, 0); self.buf.resize(len, 0);
try!(self.stream.read_exact(&mut self.buf[MESSAGE_HEADER_SIZE..])); self.stream.read_exact(&mut self.buf[MESSAGE_HEADER_SIZE..])?;
}; };
match try!(backend::Message::parse_owned(&self.buf)) { match backend::Message::parse_owned(&self.buf)? {
ParseResult::Complete { message, .. } => Ok(message), ParseResult::Complete { message, .. } => Ok(message),
ParseResult::Incomplete { .. } => unreachable!(), ParseResult::Incomplete { .. } => unreachable!(),
} }
@ -70,17 +70,17 @@ impl MessageStream {
pub fn read_message(&mut self) -> io::Result<backend::Message<Vec<u8>>> { pub fn read_message(&mut self) -> io::Result<backend::Message<Vec<u8>>> {
let mut b = [0; 1]; let mut b = [0; 1];
try!(self.stream.read_exact(&mut b)); self.stream.read_exact(&mut b)?;
self.inner_read_message(b[0]) self.inner_read_message(b[0])
} }
pub fn read_message_timeout(&mut self, pub fn read_message_timeout(&mut self,
timeout: Duration) timeout: Duration)
-> io::Result<Option<backend::Message<Vec<u8>>>> { -> io::Result<Option<backend::Message<Vec<u8>>>> {
try!(self.set_read_timeout(Some(timeout))); self.set_read_timeout(Some(timeout))?;
let mut b = [0; 1]; let mut b = [0; 1];
let r = self.stream.read_exact(&mut b); let r = self.stream.read_exact(&mut b);
try!(self.set_read_timeout(None)); self.set_read_timeout(None)?;
match r { match r {
Ok(()) => self.inner_read_message(b[0]).map(Some), Ok(()) => self.inner_read_message(b[0]).map(Some),
@ -91,10 +91,10 @@ impl MessageStream {
} }
pub fn read_message_nonblocking(&mut self) -> io::Result<Option<backend::Message<Vec<u8>>>> { pub fn read_message_nonblocking(&mut self) -> io::Result<Option<backend::Message<Vec<u8>>>> {
try!(self.set_nonblocking(true)); self.set_nonblocking(true)?;
let mut b = [0; 1]; let mut b = [0; 1];
let r = self.stream.read_exact(&mut b); let r = self.stream.read_exact(&mut b);
try!(self.set_nonblocking(false)); self.set_nonblocking(false)?;
match r { match r {
Ok(()) => self.inner_read_message(b[0]).map(Some), Ok(()) => self.inner_read_message(b[0]).map(Some),
@ -224,12 +224,12 @@ fn open_socket(params: &ConnectParams) -> Result<InternalStream, ConnectError> {
let port = params.port.unwrap_or(DEFAULT_PORT); let port = params.port.unwrap_or(DEFAULT_PORT);
match params.target { match params.target {
ConnectTarget::Tcp(ref host) => { ConnectTarget::Tcp(ref host) => {
Ok(try!(TcpStream::connect(&(&**host, port)).map(InternalStream::Tcp))) Ok(TcpStream::connect(&(&**host, port)).map(InternalStream::Tcp)?)
} }
#[cfg(unix)] #[cfg(unix)]
ConnectTarget::Unix(ref path) => { ConnectTarget::Unix(ref path) => {
let path = path.join(&format!(".s.PGSQL.{}", port)); let path = path.join(&format!(".s.PGSQL.{}", port));
Ok(try!(UnixStream::connect(&path).map(InternalStream::Unix))) Ok(UnixStream::connect(&path).map(InternalStream::Unix)?)
} }
#[cfg(not(unix))] #[cfg(not(unix))]
ConnectTarget::Unix(..) => { ConnectTarget::Unix(..) => {
@ -242,7 +242,7 @@ fn open_socket(params: &ConnectParams) -> Result<InternalStream, ConnectError> {
pub fn initialize_stream(params: &ConnectParams, pub fn initialize_stream(params: &ConnectParams,
tls: TlsMode) tls: TlsMode)
-> Result<Box<TlsStream>, ConnectError> { -> Result<Box<TlsStream>, ConnectError> {
let mut socket = Stream(try!(open_socket(params))); let mut socket = Stream(open_socket(params)?);
let (tls_required, handshaker) = match tls { let (tls_required, handshaker) = match tls {
TlsMode::None => return Ok(Box::new(socket)), TlsMode::None => return Ok(Box::new(socket)),
@ -252,11 +252,11 @@ pub fn initialize_stream(params: &ConnectParams,
let mut buf = vec![]; let mut buf = vec![];
frontend::ssl_request(&mut buf); frontend::ssl_request(&mut buf);
try!(socket.write_all(&buf)); socket.write_all(&buf)?;
try!(socket.flush()); socket.flush()?;
let mut b = [0; 1]; let mut b = [0; 1];
try!(socket.read_exact(&mut b)); socket.read_exact(&mut b)?;
if b[0] == b'N' { if b[0] == b'N' {
if tls_required { if tls_required {
return Err(ConnectError::Tls("the server does not support TLS".into())); return Err(ConnectError::Tls("the server does not support TLS".into()));

8
postgres/src/rows.rs
View File

@ -348,9 +348,9 @@ impl<'trans, 'stmt> LazyRows<'trans, 'stmt> {
fn execute(&mut self) -> Result<()> { fn execute(&mut self) -> Result<()> {
let mut conn = self.stmt.conn().0.borrow_mut(); let mut conn = self.stmt.conn().0.borrow_mut();
try!(conn.stream.write_message(|buf| frontend::execute(&self.name, self.row_limit, buf))); conn.stream.write_message(|buf| frontend::execute(&self.name, self.row_limit, buf))?;
try!(conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(conn.stream.flush()); conn.stream.flush()?;
conn.read_rows(|row| self.data.push_back(row)).map(|more_rows| self.more_rows = more_rows) conn.read_rows(|row| self.data.push_back(row)).map(|more_rows| self.more_rows = more_rows)
} }
@ -374,7 +374,7 @@ impl<'trans, 'stmt> FallibleIterator for LazyRows<'trans, 'stmt> {
fn next(&mut self) -> Result<Option<Row<'stmt>>> { fn next(&mut self) -> Result<Option<Row<'stmt>>> {
if self.data.is_empty() && self.more_rows { if self.data.is_empty() && self.more_rows {
try!(self.execute()); self.execute()?;
} }
let row = self.data let row = self.data

131
postgres/src/stmt.rs
View File

@ -61,7 +61,7 @@ impl<'conn> StatementInternals<'conn> for Statement<'conn> {
fn into_query(self, params: &[&ToSql]) -> Result<Rows<'conn>> { fn into_query(self, params: &[&ToSql]) -> Result<Rows<'conn>> {
check_desync!(self.conn); check_desync!(self.conn);
let mut rows = vec![]; let mut rows = vec![];
try!(self.inner_query("", 0, params, |row| rows.push(row))); self.inner_query("", 0, params, |row| rows.push(row))?;
Ok(Rows::new_owned(self, rows)) Ok(Rows::new_owned(self, rows))
} }
} }
@ -89,11 +89,11 @@ impl<'conn> Statement<'conn> {
{ {
let mut conn = self.conn.0.borrow_mut(); let mut conn = self.conn.0.borrow_mut();
try!(conn.raw_execute(&self.info.name, conn.raw_execute(&self.info.name,
portal_name, portal_name,
row_limit, row_limit,
self.param_types(), self.param_types(),
params)); params)?;
conn.read_rows(acceptor) conn.read_rows(acceptor)
} }
@ -131,18 +131,18 @@ impl<'conn> Statement<'conn> {
pub fn execute(&self, params: &[&ToSql]) -> Result<u64> { pub fn execute(&self, params: &[&ToSql]) -> Result<u64> {
let mut conn = self.conn.0.borrow_mut(); let mut conn = self.conn.0.borrow_mut();
check_desync!(conn); check_desync!(conn);
try!(conn.raw_execute(&self.info.name, "", 0, self.param_types(), params)); conn.raw_execute(&self.info.name, "", 0, self.param_types(), params)?;
let num; let num;
loop { loop {
match try!(conn.read_message()) { match conn.read_message()? {
backend::Message::DataRow(_) => {} backend::Message::DataRow(_) => {}
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
backend::Message::CommandComplete(body) => { backend::Message::CommandComplete(body) => {
num = parse_update_count(try!(body.tag())); num = parse_update_count(body.tag()?);
break; break;
} }
backend::Message::EmptyQueryResponse => { backend::Message::EmptyQueryResponse => {
@ -150,19 +150,19 @@ impl<'conn> Statement<'conn> {
break; break;
} }
backend::Message::CopyInResponse(_) => { backend::Message::CopyInResponse(_) => {
try!(conn.stream.write_message(|buf| { conn.stream.write_message(|buf| {
frontend::copy_fail("COPY queries cannot be directly executed", buf) frontend::copy_fail("COPY queries cannot be directly executed", buf)
})); })?;
try!(conn.stream conn.stream
.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); .write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(conn.stream.flush()); conn.stream.flush()?;
} }
backend::Message::CopyOutResponse(_) => { backend::Message::CopyOutResponse(_) => {
loop { loop {
match try!(conn.read_message()) { match conn.read_message()? {
backend::Message::CopyDone => break, backend::Message::CopyDone => break,
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
_ => {} _ => {}
@ -177,7 +177,7 @@ impl<'conn> Statement<'conn> {
} }
} }
} }
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
Ok(num) Ok(num)
} }
@ -204,7 +204,7 @@ impl<'conn> Statement<'conn> {
pub fn query<'a>(&'a self, params: &[&ToSql]) -> Result<Rows<'a>> { pub fn query<'a>(&'a self, params: &[&ToSql]) -> Result<Rows<'a>> {
check_desync!(self.conn); check_desync!(self.conn);
let mut rows = vec![]; let mut rows = vec![];
try!(self.inner_query("", 0, params, |row| rows.push(row))); self.inner_query("", 0, params, |row| rows.push(row))?;
Ok(Rows::new(self, rows)) Ok(Rows::new(self, rows))
} }
@ -245,10 +245,10 @@ impl<'conn> Statement<'conn> {
let portal_name = format!("{}p{}", self.info.name, id); let portal_name = format!("{}p{}", self.info.name, id);
let mut rows = VecDeque::new(); let mut rows = VecDeque::new();
let more_rows = try!(self.inner_query(&portal_name, let more_rows = self.inner_query(&portal_name,
row_limit, row_limit,
params, params,
|row| rows.push_back(row))); |row| rows.push_back(row))?;
Ok(LazyRows::new(self, rows, portal_name, row_limit, more_rows, false, trans)) Ok(LazyRows::new(self, rows, portal_name, row_limit, more_rows, false, trans))
} }
@ -275,23 +275,23 @@ impl<'conn> Statement<'conn> {
/// ``` /// ```
pub fn copy_in<R: ReadWithInfo>(&self, params: &[&ToSql], r: &mut R) -> Result<u64> { pub fn copy_in<R: ReadWithInfo>(&self, params: &[&ToSql], r: &mut R) -> Result<u64> {
let mut conn = self.conn.0.borrow_mut(); let mut conn = self.conn.0.borrow_mut();
try!(conn.raw_execute(&self.info.name, "", 0, self.param_types(), params)); conn.raw_execute(&self.info.name, "", 0, self.param_types(), params)?;
let (format, column_formats) = match try!(conn.read_message()) { let (format, column_formats) = match conn.read_message()? {
backend::Message::CopyInResponse(body) => { backend::Message::CopyInResponse(body) => {
let format = body.format(); let format = body.format();
let column_formats = try!(body.column_formats() let column_formats = body.column_formats()
.map(|f| Format::from_u16(f)) .map(|f| Format::from_u16(f))
.collect()); .collect()?;
(format, column_formats) (format, column_formats)
} }
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
_ => { _ => {
loop { loop {
if let backend::Message::ReadyForQuery(_) = try!(conn.read_message()) { if let backend::Message::ReadyForQuery(_) = conn.read_message()? {
return Err(Error::Io(io::Error::new(io::ErrorKind::InvalidInput, return Err(Error::Io(io::Error::new(io::ErrorKind::InvalidInput,
"called `copy_in` on a \ "called `copy_in` on a \
non-`COPY FROM STDIN` \ non-`COPY FROM STDIN` \
@ -311,19 +311,16 @@ impl<'conn> Statement<'conn> {
match fill_copy_buf(&mut buf, r, &info) { match fill_copy_buf(&mut buf, r, &info) {
Ok(0) => break, Ok(0) => break,
Ok(len) => { Ok(len) => {
try!(conn conn.stream.write_message(|out| frontend::copy_data(&buf[..len], out))?;
.stream.write_message(|out| frontend::copy_data(&buf[..len], out)));
} }
Err(err) => { Err(err) => {
try!(conn.stream.write_message(|buf| frontend::copy_fail("", buf))); conn.stream.write_message(|buf| frontend::copy_fail("", buf))?;
try!(conn conn.stream
.stream .write_message(|buf| Ok::<(), io::Error>(frontend::copy_done(buf)))?;
.write_message(|buf| Ok::<(), io::Error>(frontend::copy_done(buf)))); conn.stream
try!(conn .write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
.stream conn.stream.flush()?;
.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); match conn.read_message()? {
try!(conn.stream.flush());
match try!(conn.read_message()) {
backend::Message::ErrorResponse(_) => { backend::Message::ErrorResponse(_) => {
// expected from the CopyFail // expected from the CopyFail
} }
@ -332,20 +329,20 @@ impl<'conn> Statement<'conn> {
return Err(Error::Io(bad_response())); return Err(Error::Io(bad_response()));
} }
} }
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
return Err(Error::Io(err)); return Err(Error::Io(err));
} }
} }
} }
try!(conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::copy_done(buf)))); conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::copy_done(buf)))?;
try!(conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(conn.stream.flush()); conn.stream.flush()?;
let num = match try!(conn.read_message()) { let num = match conn.read_message()? {
backend::Message::CommandComplete(body) => parse_update_count(try!(body.tag())), backend::Message::CommandComplete(body) => parse_update_count(body.tag()?),
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
_ => { _ => {
@ -354,7 +351,7 @@ impl<'conn> Statement<'conn> {
} }
}; };
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
Ok(num) Ok(num)
} }
@ -382,23 +379,23 @@ impl<'conn> Statement<'conn> {
/// ``` /// ```
pub fn copy_out<'a, W: WriteWithInfo>(&'a self, params: &[&ToSql], w: &mut W) -> Result<u64> { pub fn copy_out<'a, W: WriteWithInfo>(&'a self, params: &[&ToSql], w: &mut W) -> Result<u64> {
let mut conn = self.conn.0.borrow_mut(); let mut conn = self.conn.0.borrow_mut();
try!(conn.raw_execute(&self.info.name, "", 0, self.param_types(), params)); conn.raw_execute(&self.info.name, "", 0, self.param_types(), params)?;
let (format, column_formats) = match try!(conn.read_message()) { let (format, column_formats) = match conn.read_message()? {
backend::Message::CopyOutResponse(body) => { backend::Message::CopyOutResponse(body) => {
let format = body.format(); let format = body.format();
let column_formats = try!(body.column_formats() let column_formats = body.column_formats()
.map(|f| Format::from_u16(f)) .map(|f| Format::from_u16(f))
.collect()); .collect()?;
(format, column_formats) (format, column_formats)
} }
backend::Message::CopyInResponse(_) => { backend::Message::CopyInResponse(_) => {
try!(conn.stream.write_message(|buf| frontend::copy_fail("", buf))); conn.stream.write_message(|buf| frontend::copy_fail("", buf))?;
try!(conn.stream conn.stream
.write_message(|buf| Ok::<(), io::Error>(frontend::copy_done(buf)))); .write_message(|buf| Ok::<(), io::Error>(frontend::copy_done(buf)))?;
try!(conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))); conn.stream.write_message(|buf| Ok::<(), io::Error>(frontend::sync(buf)))?;
try!(conn.stream.flush()); conn.stream.flush()?;
match try!(conn.read_message()) { match conn.read_message()? {
backend::Message::ErrorResponse(_) => { backend::Message::ErrorResponse(_) => {
// expected from the CopyFail // expected from the CopyFail
} }
@ -407,18 +404,18 @@ impl<'conn> Statement<'conn> {
return Err(Error::Io(bad_response())); return Err(Error::Io(bad_response()));
} }
} }
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
return Err(Error::Io(io::Error::new(io::ErrorKind::InvalidInput, return Err(Error::Io(io::Error::new(io::ErrorKind::InvalidInput,
"called `copy_out` on a non-`COPY TO \ "called `copy_out` on a non-`COPY TO \
STDOUT` statement"))); STDOUT` statement")));
} }
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
_ => { _ => {
loop { loop {
if let backend::Message::ReadyForQuery(_) = try!(conn.read_message()) { if let backend::Message::ReadyForQuery(_) = conn.read_message()? {
return Err(Error::Io(io::Error::new(io::ErrorKind::InvalidInput, return Err(Error::Io(io::Error::new(io::ErrorKind::InvalidInput,
"called `copy_out` on a \ "called `copy_out` on a \
non-`COPY TO STDOUT` statement"))); non-`COPY TO STDOUT` statement")));
@ -434,7 +431,7 @@ impl<'conn> Statement<'conn> {
let count; let count;
loop { loop {
match try!(conn.read_message()) { match conn.read_message()? {
backend::Message::CopyData(body) => { backend::Message::CopyData(body) => {
let mut data = body.data(); let mut data = body.data();
while !data.is_empty() { while !data.is_empty() {
@ -443,7 +440,7 @@ impl<'conn> Statement<'conn> {
Err(e) => { Err(e) => {
loop { loop {
if let backend::Message::ReadyForQuery(_) = if let backend::Message::ReadyForQuery(_) =
try!(conn.read_message()) { conn.read_message()? {
return Err(Error::Io(e)); return Err(Error::Io(e));
} }
} }
@ -453,13 +450,13 @@ impl<'conn> Statement<'conn> {
} }
backend::Message::CopyDone => {} backend::Message::CopyDone => {}
backend::Message::CommandComplete(body) => { backend::Message::CommandComplete(body) => {
count = parse_update_count(try!(body.tag())); count = parse_update_count(body.tag()?);
break; break;
} }
backend::Message::ErrorResponse(body) => { backend::Message::ErrorResponse(body) => {
loop { loop {
if let backend::Message::ReadyForQuery(_) = if let backend::Message::ReadyForQuery(_) =
try!(conn.read_message()) { conn.read_message()? {
return Err(err(&mut body.fields())); return Err(err(&mut body.fields()));
} }
} }
@ -467,7 +464,7 @@ impl<'conn> Statement<'conn> {
_ => { _ => {
loop { loop {
if let backend::Message::ReadyForQuery(_) = if let backend::Message::ReadyForQuery(_) =
try!(conn.read_message()) { conn.read_message()? {
return Err(Error::Io(bad_response())); return Err(Error::Io(bad_response()));
} }
} }
@ -475,7 +472,7 @@ impl<'conn> Statement<'conn> {
} }
} }
try!(conn.wait_for_ready()); conn.wait_for_ready()?;
Ok(count) Ok(count)
} }

6
postgres/src/tls/native_tls.rs
View File

@ -31,8 +31,8 @@ impl fmt::Debug for NativeTls {
impl NativeTls { impl NativeTls {
/// Creates a new `NativeTls` with its default configuration. /// Creates a new `NativeTls` with its default configuration.
pub fn new() -> Result<NativeTls, native_tls::Error> { pub fn new() -> Result<NativeTls, native_tls::Error> {
let connector = try!(TlsConnector::builder()); let connector = TlsConnector::builder()?;
let connector = try!(connector.build()); let connector = connector.build()?;
Ok(NativeTls(connector)) Ok(NativeTls(connector))
} }
@ -58,7 +58,7 @@ impl TlsHandshake for NativeTls {
domain: &str, domain: &str,
stream: Stream) stream: Stream)
-> Result<Box<TlsStream>, Box<Error + Send + Sync>> { -> Result<Box<TlsStream>, Box<Error + Send + Sync>> {
let stream = try!(self.0.connect(domain, stream)); let stream = self.0.connect(domain, stream)?;
Ok(Box::new(stream)) Ok(Box::new(stream))
} }
} }

6
postgres/src/tls/openssl.rs
View File

@ -35,7 +35,7 @@ impl fmt::Debug for OpenSsl {
impl OpenSsl { impl OpenSsl {
/// Creates a `OpenSsl` with `SslConnector`'s default configuration. /// Creates a `OpenSsl` with `SslConnector`'s default configuration.
pub fn new() -> Result<OpenSsl, ErrorStack> { pub fn new() -> Result<OpenSsl, ErrorStack> {
let connector = try!(SslConnectorBuilder::new(SslMethod::tls())).build(); let connector = SslConnectorBuilder::new(SslMethod::tls())?.build();
Ok(OpenSsl::from(connector)) Ok(OpenSsl::from(connector))
} }
@ -75,9 +75,9 @@ impl TlsHandshake for OpenSsl {
stream: Stream) stream: Stream)
-> Result<Box<TlsStream>, Box<Error + Send + Sync>> { -> Result<Box<TlsStream>, Box<Error + Send + Sync>> {
let stream = if self.disable_verification { let stream = if self.disable_verification {
try!(self.connector.danger_connect_without_providing_domain_for_certificate_verification_and_server_name_indication(stream)) self.connector.danger_connect_without_providing_domain_for_certificate_verification_and_server_name_indication(stream)?
} else { } else {
try!(self.connector.connect(domain, stream)) self.connector.connect(domain, stream)?
}; };
Ok(Box::new(stream)) Ok(Box::new(stream))
} }

6
postgres/src/tls/schannel.rs
View File

@ -42,10 +42,10 @@ impl TlsHandshake for Schannel {
host: &str, host: &str,
stream: Stream) stream: Stream)
-> Result<Box<TlsStream>, Box<Error + Sync + Send>> { -> Result<Box<TlsStream>, Box<Error + Sync + Send>> {
let creds = try!(SchannelCred::builder().acquire(Direction::Outbound)); let creds = SchannelCred::builder().acquire(Direction::Outbound)?;
let stream = try!(tls_stream::Builder::new() let stream = tls_stream::Builder::new()
.domain(host) .domain(host)
.connect(creds, stream)); .connect(creds, stream)?;
Ok(Box::new(stream)) Ok(Box::new(stream))
} }
} }

2
postgres/src/tls/security_framework.rs
View File

@ -49,7 +49,7 @@ impl TlsHandshake for SecurityFramework {
domain: &str, domain: &str,
stream: Stream) stream: Stream)
-> Result<Box<TlsStream>, Box<Error + Send + Sync>> { -> Result<Box<TlsStream>, Box<Error + Send + Sync>> {
let stream = try!(self.0.handshake(domain, stream)); let stream = self.0.handshake(domain, stream)?;
Ok(Box::new(stream)) Ok(Box::new(stream))
} }
} }

10
postgres/src/transaction.rs
View File

@ -198,10 +198,10 @@ impl<'conn> Transaction<'conn> {
debug_assert!(self.depth == conn.trans_depth); debug_assert!(self.depth == conn.trans_depth);
conn.trans_depth -= 1; conn.trans_depth -= 1;
match (self.commit.get(), &self.savepoint_name) { match (self.commit.get(), &self.savepoint_name) {
(false, &Some(ref sp)) => try!(conn.quick_query(&format!("ROLLBACK TO {}", sp))), (false, &Some(ref sp)) => conn.quick_query(&format!("ROLLBACK TO {}", sp))?,
(false, &None) => try!(conn.quick_query("ROLLBACK")), (false, &None) => conn.quick_query("ROLLBACK")?,
(true, &Some(ref sp)) => try!(conn.quick_query(&format!("RELEASE {}", sp))), (true, &Some(ref sp)) => conn.quick_query(&format!("RELEASE {}", sp))?,
(true, &None) => try!(conn.quick_query("COMMIT")), (true, &None) => conn.quick_query("COMMIT")?,
}; };
Ok(()) Ok(())
@ -258,7 +258,7 @@ impl<'conn> Transaction<'conn> {
check_desync!(conn); check_desync!(conn);
assert!(conn.trans_depth == self.depth, assert!(conn.trans_depth == self.depth,
"`savepoint` may only be called on the active transaction"); "`savepoint` may only be called on the active transaction");
try!(conn.quick_query(&format!("SAVEPOINT {}", name))); conn.quick_query(&format!("SAVEPOINT {}", name))?;
conn.trans_depth += 1; conn.trans_depth += 1;
Ok(Transaction { Ok(Transaction {
conn: self.conn, conn: self.conn,

26
postgres/src/url.rs
View File

@ -51,17 +51,17 @@ impl Url {
pub fn parse(rawurl: &str) -> DecodeResult<Url> { pub fn parse(rawurl: &str) -> DecodeResult<Url> {
// scheme // scheme
let (scheme, rest) = try!(get_scheme(rawurl)); let (scheme, rest) = get_scheme(rawurl)?;
// authority // authority
let (userinfo, host, port, rest) = try!(get_authority(rest)); let (userinfo, host, port, rest) = get_authority(rest)?;
// path // path
let has_authority = !host.is_empty(); let has_authority = !host.is_empty();
let (path, rest) = try!(get_path(rest, has_authority)); let (path, rest) = get_path(rest, has_authority)?;
// query and fragment // query and fragment
let (query, fragment) = try!(get_query_fragment(rest)); let (query, fragment) = get_query_fragment(rest)?;
let url = Url::new(scheme.to_owned(), let url = Url::new(scheme.to_owned(),
userinfo, userinfo,
@ -84,10 +84,10 @@ impl Path {
} }
pub fn parse(rawpath: &str) -> DecodeResult<Path> { pub fn parse(rawpath: &str) -> DecodeResult<Path> {
let (path, rest) = try!(get_path(rawpath, false)); let (path, rest) = get_path(rawpath, false)?;
// query and fragment // query and fragment
let (query, fragment) = try!(get_query_fragment(&rest)); let (query, fragment) = get_query_fragment(&rest)?;
Ok(Path { Ok(Path {
path: path, path: path,
@ -177,7 +177,7 @@ fn query_from_str(rawquery: &str) -> DecodeResult<Query> {
if !rawquery.is_empty() { if !rawquery.is_empty() {
for p in rawquery.split('&') { for p in rawquery.split('&') {
let (k, v) = split_char_first(p, '='); let (k, v) = split_char_first(p, '=');
query.push((try!(decode_component(k)), try!(decode_component(v)))); query.push((decode_component(k)?, decode_component(v)?));
} }
} }
@ -316,13 +316,13 @@ fn get_authority(rawurl: &str) -> DecodeResult<(Option<UserInfo>, &str, Option<u
colon_count = 0; // reset count colon_count = 0; // reset count
match st { match st {
State::Start => { State::Start => {
let user = try!(decode_component(&rawurl[begin..i])); let user = decode_component(&rawurl[begin..i])?;
userinfo = Some(UserInfo::new(user, None)); userinfo = Some(UserInfo::new(user, None));
st = State::InHost; st = State::InHost;
} }
State::PassHostPort => { State::PassHostPort => {
let user = try!(decode_component(&rawurl[begin..pos])); let user = decode_component(&rawurl[begin..pos])?;
let pass = try!(decode_component(&rawurl[pos + 1..i])); let pass = decode_component(&rawurl[pos + 1..i])?;
userinfo = Some(UserInfo::new(user, Some(pass))); userinfo = Some(UserInfo::new(user, Some(pass)));
st = State::InHost; st = State::InHost;
} }
@ -392,7 +392,7 @@ fn get_path(rawurl: &str, is_authority: bool) -> DecodeResult<(String, &str)> {
if is_authority && end != 0 && !rawurl.starts_with('/') { if is_authority && end != 0 && !rawurl.starts_with('/') {
Err("Non-empty path must begin with '/' in presence of authority.".to_owned()) Err("Non-empty path must begin with '/' in presence of authority.".to_owned())
} else { } else {
Ok((try!(decode_component(&rawurl[0..end])), &rawurl[end..len])) Ok((decode_component(&rawurl[0..end])?, &rawurl[end..len]))
} }
} }
@ -403,11 +403,11 @@ fn get_query_fragment(rawurl: &str) -> DecodeResult<(Query, Option<String>)> {
// Parse the fragment if available // Parse the fragment if available
let fragment = match raw_fragment { let fragment = match raw_fragment {
"" => None, "" => None,
raw => Some(try!(decode_component(raw))), raw => Some(decode_component(raw)?),
}; };
match before_fragment.chars().next() { match before_fragment.chars().next() {
Some('?') => Ok((try!(query_from_str(&before_fragment[1..])), fragment)), Some('?') => Ok((query_from_str(&before_fragment[1..])?, fragment)),
None => Ok((vec![], fragment)), None => Ok((vec![], fragment)),
_ => Err(format!("Query didn't start with '?': '{}..'", before_fragment)), _ => Err(format!("Query didn't start with '?': '{}..'", before_fragment)),
} }

2
tokio-postgres/src/error.rs
View File

@ -24,7 +24,7 @@ pub enum Error<C = Connection> {
impl fmt::Display for Error { impl fmt::Display for Error {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
try!(fmt.write_str(error::Error::description(self))); fmt.write_str(error::Error::description(self))?;
match *self { match *self {
Error::Db(ref err, _) => write!(fmt, ": {}", err), Error::Db(ref err, _) => write!(fmt, ": {}", err),
Error::Io(ref err) => write!(fmt, ": {}", err), Error::Io(ref err) => write!(fmt, ": {}", err),

2
tokio-postgres/src/stream.rs
View File

@ -136,7 +136,7 @@ impl Codec for PostgresCodec {
// FIXME ideally we'd avoid re-copying the data // FIXME ideally we'd avoid re-copying the data
fn decode(&mut self, buf: &mut EasyBuf) -> io::Result<Option<Self::In>> { fn decode(&mut self, buf: &mut EasyBuf) -> io::Result<Option<Self::In>> {
match try!(backend::Message::parse_owned(buf.as_ref())) { match backend::Message::parse_owned(buf.as_ref())? {
ParseResult::Complete { message, consumed } => { ParseResult::Complete { message, consumed } => {
buf.drain_to(consumed); buf.drain_to(consumed);
Ok(Some(message)) Ok(Some(message))

4
tokio-postgres/src/tls/openssl.rs
View File

@ -24,7 +24,7 @@ pub struct OpenSsl(SslConnector);
impl OpenSsl { impl OpenSsl {
/// Creates a new `OpenSsl` with default settings. /// Creates a new `OpenSsl` with default settings.
pub fn new() -> Result<OpenSsl, ErrorStack> { pub fn new() -> Result<OpenSsl, ErrorStack> {
let connector = try!(SslConnectorBuilder::new(SslMethod::tls())).build(); let connector = SslConnectorBuilder::new(SslMethod::tls())?.build();
Ok(OpenSsl(connector)) Ok(OpenSsl(connector))
} }
} }
@ -51,4 +51,4 @@ impl Handshake for OpenSsl {
}) })
.boxed() .boxed()
} }
} }