sgrif

scalaVersion := "2.11.6"

libraryDependencies ++= Seq(
  "com.chuusai" %% "shapeless" % "2.1.0"
)

sgrif

sgrif

[master][/tmp/qoiwjefoiqwejfoiqwjfoiqwejfioqewjioqfew] cat ~/.rspec
--colour
--order random
--profile 5
[master][/tmp/qoiwjefoiqwejfoiqwjfoiqwejfioqewjioqfew] ruby -v
ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-darwin14]
[master][/tmp/qoiwjefoiqwejfoiqwjfoiqwejfioqewjioqfew] ber -fd

Randomized with seed 44318

sgrif

mod embedded_migrations {
    struct EmbeddedMigration {
        version: &'static str,
        up_sql: &'static str,
    };
    
    impl Migration for EmbeddedMigration {
        fn version(&self) -> &str {
            self.version
        }

sgrif

match cache.entry(sql) {
    Occupied(entry) => Ok(entry.get().clone()),
    Vacant(entry) => {
        let statement = try!(Statement::prepare(&self.raw_connection, entry.key()));
        Ok(entry.insert(CachedStatement::new(statement)).clone())
    }
}

sgrif

match cache.entry(sql) {
    Occupied(entry) => Ok(entry.get().clone()),
    Vacant(entry) => {
        let statement = try!(Statement::prepare(&self.raw_connection, entry.key()));
        Ok(entry.insert(CachedStatement::new(statement)).clone())
    }
}

sgrif

Benchmarks comparing v0.6.0 with master

PostgreSQL

                                                          v0.6.0 ns/iter  master ns/iter    diff ns/iter   diff %
bench_selecting_0_rows_with_medium_complex_query          223,674         119,463               -104,211  -46.59%
bench_selecting_0_rows_with_trivial_query                 77,281          51,273                 -26,008  -33.65%
bench_selecting_10k_rows_with_medium_complex_query        57,555,386      55,233,745          -2,321,641   -4.03%
bench_selecting_10k_rows_with_medium_complex_query_boxed  58,937,340      54,434,717          -4,502,623   -7.64%

sgrif

diff --git a/diesel/src/lib.rs b/diesel/src/lib.rs
index 28c60a3..18225b2 100644
--- a/diesel/src/lib.rs
+++ b/diesel/src/lib.rs
@@ -3,6 +3,7 @@
 //! found in the README.
 #![deny(warnings)]
 #![cfg_attr(feature = "unstable", feature(specialization))]
+#![cfg_attr(all(test, feature = "unstable"), feature(test))]
 

sgrif

cache.entry(sql).or_insert_with_result(|sql| {
    Statement::prepare(&self.raw_connection, &sql)
        .map(CachedStatement::new)
}).clone()

sgrif

use std::fmt;
use std::marker::PhantomData;

fn main() {
    // Upper stages
    let ablestar = SimpleStage { dry_mass: 667.0, engine: AJ10_104D, };
    let baby_sergeant_1 = SimpleStage { dry_mass: BABY_SERGEANT.mass, engine: BABY_SERGEANT };
    let baby_sergeant_3 = MultiEngine { dry_mass: BABY_SERGEANT.mass * 3.0, engine: BABY_SERGEANT, engine_count: 3 };
    let baby_sergeant_11 = MultiEngine { dry_mass: BABY_SERGEANT.mass * 11.0, engine: BABY_SERGEANT, engine_count: 11 };