add blobs via #bytes to edn

db-traits/errors.rs

@@ -118,10 +118,10 @@ impl ::std::fmt::Display for InputError {
         match self {
             BadDbId => {
                 writeln!(f, ":db/id in map notation must either not be present or be an entid, an ident, or a tempid")
-            },
+            }
             BadEntityPlace => {
                 writeln!(f, "cannot convert value place into entity place")
-            },
+            }
         }
     }
 }

db/src/cache.rs

@@ -61,7 +61,7 @@ use std::iter::Peekable;
 use failure::ResultExt;
 
 use rusqlite;
-use rusqlite::{params_from_iter};
+use rusqlite::params_from_iter;
 
 use core_traits::{Binding, Entid, TypedValue};
 
@@ -1072,7 +1072,9 @@ impl AttributeCaches {
         replacing: bool,
     ) -> Result<()> {
         let mut aev_factory = AevFactory::new();
-        let rows = statement.query_map(params_from_iter(&args), |row| Ok(aev_factory.row_to_aev(row)))?;
+        let rows = statement.query_map(params_from_iter(&args), |row| {
+            Ok(aev_factory.row_to_aev(row))
+        })?;
         let aevs = AevRows { rows };
         self.accumulate_into_cache(
             None,

db/src/db.rs

@@ -22,9 +22,9 @@ use itertools;
 use itertools::Itertools;
 use rusqlite;
 use rusqlite::limits::Limit;
+use rusqlite::params_from_iter;
 use rusqlite::types::{ToSql, ToSqlOutput};
 use rusqlite::TransactionBehavior;
-use rusqlite::{params_from_iter};
 
 use crate::bootstrap;
 use crate::{repeat_values, to_namespaced_keyword};

db/src/internal_types.rs

@@ -75,7 +75,7 @@ impl TransactableValue for ValueAndSpan {
                 }
             }
             Nil | Boolean(_) | Instant(_) | BigInteger(_) | Float(_) | Uuid(_) | PlainSymbol(_)
-            | NamespacedSymbol(_) | Vector(_) | Set(_) | Map(_) => {
+            | NamespacedSymbol(_) | Vector(_) | Set(_) | Map(_) | Bytes(_) => {
                 bail!(DbErrorKind::InputError(errors::InputError::BadEntityPlace))
             }
         }

db/src/timelines.rs

@@ -81,7 +81,7 @@ fn move_transactions_to(
             new_timeline,
             crate::repeat_values(tx_ids.len(), 1)
         ),
-        params_from_iter(tx_ids.iter())
+        params_from_iter(tx_ids.iter()),
     )?;
     Ok(())
 }

edn/Cargo.toml

@@ -19,6 +19,8 @@ uuid = { version = "~0.8", features = ["v4", "serde"] }
 serde = { version = "~1.0", optional = true }
 serde_derive = { version = "~1.0", optional = true }
 peg = "~0.7"
+bytes = "1.0.1"
+hex = "0.4.3"
 
 [dev-dependencies]
 serde_test = "~1.0"

edn/src/lib.rs

@@ -8,7 +8,9 @@
 // CONDITIONS OF ANY KIND, either express or implied. See the License for the
 // specific language governing permissions and limitations under the License.
 
+extern crate bytes;
 extern crate chrono;
+extern crate hex;
 extern crate itertools;
 extern crate num;
 extern crate ordered_float;
@@ -38,7 +40,9 @@ pub mod value_rc;
 pub use crate::value_rc::{Cloned, FromRc, ValueRc};
 
 // Re-export the types we use.
+use bytes::Bytes;
 pub use chrono::{DateTime, Utc};
+use hex::decode;
 pub use num::BigInt;
 pub use ordered_float::OrderedFloat;
 pub use uuid::Uuid;
@@ -172,6 +176,13 @@ peg::parser!(pub grammar parse() for str {
     pub rule uuid() -> SpannedValue = "#uuid" whitespace()+ u:uuid_string()
         { SpannedValue::Uuid(u) }
 
+    rule byte_buffer() -> Bytes =
+        u:$( ['a'..='f' | 'A'..='F' | '0'..='9']* ) {
+            let b = decode(u).expect("this is a valid hex byte string");
+            Bytes::copy_from_slice(&b)
+        }
+    pub rule bytes() -> SpannedValue = "#bytes" whitespace()+ u:byte_buffer()
+        { SpannedValue::Bytes(u) }
     rule namespace_divider() = "."
     rule namespace_separator() = "/"
 
@@ -219,7 +230,7 @@ peg::parser!(pub grammar parse() for str {
 
     // Note: It's important that float comes before integer or the parser assumes that floats are integers and fails to parse.
     pub rule value() -> ValueAndSpan =
-        __ start:position!() v:(nil() / nan() / infinity() / boolean() / number() / inst() / uuid() / text() / keyword() / symbol() / list() / vector() / map() / set()) end:position!() __ {
+        __ start:position!() v:(nil() / nan() / infinity() / boolean() / number() / inst() / uuid() / text() / keyword() / symbol() / list() / vector() / map() / set() / bytes() ) end:position!() __ {
             ValueAndSpan {
                 inner: v,
                 span: Span::new(start, end)

edn/src/pretty_print.rs

@@ -58,9 +58,7 @@ impl Value {
         let open = open.into();
         let n = open.len() as isize;
         let i = {
-            let this = vs
-                .into_iter()
-                .map(|v| v.as_doc(allocator));
+            let this = vs.into_iter().map(|v| v.as_doc(allocator));
             let element = allocator.line();
             Itertools::intersperse(this, element)
         };
@@ -86,9 +84,9 @@ impl Value {
             Value::Map(ref vs) => {
                 let xs = {
                     let this = vs
-                                .iter()
-                                .rev()
-                                .map(|(k, v)| k.as_doc(pp).append(pp.line()).append(v.as_doc(pp)).group());
+                        .iter()
+                        .rev()
+                        .map(|(k, v)| k.as_doc(pp).append(pp.line()).append(v.as_doc(pp)).group());
                     let element = pp.line();
                     Itertools::intersperse(this, element)
                 };

edn/src/query.rs

@@ -233,7 +233,7 @@ impl FromValue<FnArg> for FnArg {
             {
                 Some(FnArg::Constant(x.clone().into()))
             }
-            Nil | NamespacedSymbol(_) | Vector(_) | List(_) | Set(_) | Map(_) => None,
+            Nil | NamespacedSymbol(_) | Vector(_) | List(_) | Set(_) | Map(_) | Bytes(_) => None,
         }
     }
 }
@@ -410,6 +410,7 @@ impl FromValue<PatternValuePlace> for PatternValuePlace {
             crate::SpannedValue::List(_) => None,
             crate::SpannedValue::Set(_) => None,
             crate::SpannedValue::Vector(_) => None,
+            crate::SpannedValue::Bytes(_) => None,
         }
     }
 }

edn/src/types.rs

@@ -27,6 +27,8 @@ use uuid::Uuid;
 
 use crate::symbols;
 
+use bytes::Bytes;
+use hex::encode;
 /// Value represents one of the allowed values in an EDN string.
 #[derive(PartialEq, Eq, Hash, Clone, Debug)]
 pub enum Value {
@@ -52,6 +54,7 @@ pub enum Value {
     // See https://internals.rust-lang.org/t/implementing-hash-for-hashset-hashmap/3817/1
     Set(BTreeSet<Value>),
     Map(BTreeMap<Value, Value>),
+    Bytes(Bytes),
 }
 
 /// `SpannedValue` is the parallel to `Value` but used in `ValueAndSpan`.
@@ -73,6 +76,7 @@ pub enum SpannedValue {
     List(LinkedList<ValueAndSpan>),
     Set(BTreeSet<ValueAndSpan>),
     Map(BTreeMap<ValueAndSpan, ValueAndSpan>),
+    Bytes(Bytes),
 }
 
 /// Span represents the current offset (start, end) into the input string.
@@ -172,6 +176,7 @@ impl From<SpannedValue> for Value {
                     .map(|(x, y)| (x.without_spans(), y.without_spans()))
                     .collect(),
             ),
+            SpannedValue::Bytes(b) => Value::Bytes(b),
         }
     }
 }
@@ -328,6 +333,7 @@ macro_rules! def_common_value_methods {
         def_is!(is_list, $t::List(_));
         def_is!(is_set, $t::Set(_));
         def_is!(is_map, $t::Map(_));
+        def_is!(is_bytes, $t::Bytes(_));
 
         pub fn is_keyword(&self) -> bool {
             match self {
@@ -360,6 +366,7 @@ macro_rules! def_common_value_methods {
         def_as_ref!(as_uuid, $t::Uuid, Uuid);
         def_as_ref!(as_symbol, $t::PlainSymbol, symbols::PlainSymbol);
         def_as_ref!(as_namespaced_symbol, $t::NamespacedSymbol, symbols::NamespacedSymbol);
+        def_as_ref!(as_bytes, $t::Bytes, Bytes);
 
         pub fn as_keyword(&self) -> Option<&symbols::Keyword> {
             match self {
@@ -397,6 +404,7 @@ macro_rules! def_common_value_methods {
         def_into!(into_uuid, $t::Uuid, Uuid,);
         def_into!(into_symbol, $t::PlainSymbol, symbols::PlainSymbol,);
         def_into!(into_namespaced_symbol, $t::NamespacedSymbol, symbols::NamespacedSymbol,);
+        def_into!(into_bytes, $t::Bytes, Bytes,);
 
         pub fn into_keyword(self) -> Option<symbols::Keyword> {
             match self {
@@ -467,6 +475,7 @@ macro_rules! def_common_value_methods {
                 $t::List(_) => 13,
                 $t::Set(_) => 14,
                 $t::Map(_) => 15,
+                $t::Bytes(_) => 16,
             }
         }
 
@@ -487,6 +496,7 @@ macro_rules! def_common_value_methods {
                 $t::List(_) => true,
                 $t::Set(_) => true,
                 $t::Map(_) => true,
+                $t::Bytes(_) => true,
             }
         }
 
@@ -524,6 +534,7 @@ macro_rules! def_common_value_ord {
             (&$t::List(ref a), &$t::List(ref b)) => b.cmp(a),
             (&$t::Set(ref a), &$t::Set(ref b)) => b.cmp(a),
             (&$t::Map(ref a), &$t::Map(ref b)) => b.cmp(a),
+            (&$t::Bytes(ref a), &$t::Bytes(ref b)) => b.cmp(a),
             _ => $value.precedence().cmp(&$other.precedence()),
         }
     };
@@ -590,6 +601,10 @@ macro_rules! def_common_value_display {
                 }
                 write!($f, " }}")
             }
+            $t::Bytes(ref v) => {
+                let s = encode(v);
+                write!($f, "#bytes \"{}\"", s)
+            }
         }
     };
 }

edn/tests/tests.rs

@@ -82,6 +82,7 @@ fn_parse_into_value!(vector);
 fn_parse_into_value!(set);
 fn_parse_into_value!(map);
 fn_parse_into_value!(value);
+fn_parse_into_value!(bytes);
 
 #[test]
 fn test_nil() {
@@ -316,6 +317,27 @@ fn test_uuid() {
     assert_eq!(value.to_pretty(100).unwrap(), s);
 }
 
+#[test]
+fn test_bytes() {
+    assert!(parse::bytes("#bytes01 ").is_err()); // No whitespace.
+    assert!(parse::bytes("#bytes _ZZ").is_err()); // No whitespace.
+    assert!(parse::bytes("#bytes 01 ").is_err()); // No whitespace.
+    assert!(parse::bytes("#01 ").is_err()); // No whitespace.
+
+    let expected = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+    let s = format!("{} {}", "#bytes", hex::encode(expected.clone()));
+    let actual: Value = parse::bytes(&s).expect("parse success").into();
+    assert!(actual.is_bytes());
+    assert_eq!(expected, actual.as_bytes().unwrap().to_vec());
+
+    assert_eq!(
+        self::bytes("#bytes 010203050403022a").unwrap(),
+        Value::Bytes(bytes::Bytes::copy_from_slice(&vec!(
+            1, 2, 3, 5, 4, 3, 2, 42
+        )))
+    );
+}
+
 #[test]
 fn test_inst() {
     assert!(parse::value("#inst\"2016-01-01T11:00:00.000Z\"").is_err()); // No whitespace.
@@ -584,6 +606,12 @@ fn test_value() {
         value("#inst \"2017-04-28T20:23:05.187Z\"").unwrap(),
         Instant(Utc.timestamp(1493410985, 187000000))
     );
+    assert_eq!(
+        value("#bytes 010203050403022a").unwrap(),
+        Bytes(bytes::Bytes::copy_from_slice(&vec!(
+            1, 2, 3, 5, 4, 3, 2, 42
+        )))
+    );
 }
 
 #[test]

tolstoy/src/remote_client.rs

@@ -10,7 +10,7 @@
 
 #![allow(dead_code)]
 
-use hyper::{body, header, Client, Body, Method, Request, StatusCode};
+use hyper::{body, header, Body, Client, Method, Request, StatusCode};
 use hyper_tls::HttpsConnector;
 // TODO: https://github.com/mozilla/mentat/issues/570
 // use serde_cbor;

tolstoy/src/syncer.rs

@@ -741,13 +741,14 @@ impl Syncer {
         // Since we've "merged" with the remote bootstrap, the "no-op" and
         // "local fast-forward" cases are reported as merges.
         match Syncer::what_do(remote_state, local_state) {
-            SyncAction::NoOp => {
-                Ok(SyncReport::Merge(SyncFollowup::None))
-            }
+            SyncAction::NoOp => Ok(SyncReport::Merge(SyncFollowup::None)),
 
             SyncAction::PopulateRemote => {
                 // This is a programming error.
-                bail!(TolstoyError::UnexpectedState("Remote state can't be empty on first sync against non-empty remote".to_string()))
+                bail!(TolstoyError::UnexpectedState(
+                    "Remote state can't be empty on first sync against non-empty remote"
+                        .to_string()
+                ))
             }
 
             SyncAction::RemoteFastForward => {
@@ -761,12 +762,11 @@ impl Syncer {
 
             SyncAction::CombineChanges => {
                 let local_txs = Processor::process(
-                    &ip.transaction, Some(local_metadata.root), LocalTxSet::new())?;
-                Syncer::merge(
-                    ip,
-                    incoming_txs[1..].to_vec(),
-                    local_txs,
-                )
+                    &ip.transaction,
+                    Some(local_metadata.root),
+                    LocalTxSet::new(),
+                )?;
+                Syncer::merge(ip, incoming_txs[1..].to_vec(), local_txs)
             }
         }
     }