Merge branch 'release-v0.9.5' into release

Cargo.toml

@@ -1,11 +1,11 @@
 [package]
 name = "postgres"
-version = "0.9.4"
+version = "0.9.5"
 authors = ["Steven Fackler <sfackler@gmail.com>"]
 license = "MIT"
 description = "A native PostgreSQL driver"
 repository = "https://github.com/sfackler/rust-postgres"
-documentation = "https://sfackler.github.io/rust-postgres/doc/v0.9.4/postgres"
+documentation = "https://sfackler.github.io/rust-postgres/doc/v0.9.5/postgres"
 readme = "README.md"
 keywords = ["database", "sql"]
 build = "build.rs"

README.md

@@ -1,7 +1,7 @@
 # Rust-Postgres
 A native PostgreSQL driver for Rust.
 
-[Documentation](https://sfackler.github.io/rust-postgres/doc/v0.9.4/postgres)
+[Documentation](https://sfackler.github.io/rust-postgres/doc/v0.9.5/postgres)
 
 [![Build Status](https://travis-ci.org/sfackler/rust-postgres.png?branch=master)](https://travis-ci.org/sfackler/rust-postgres) [![Latest Version](https://img.shields.io/crates/v/postgres.svg)](https://crates.io/crates/postgres)
 

src/lib.rs

@@ -41,7 +41,7 @@
 //!     }
 //! }
 //! ```
-#![doc(html_root_url="https://sfackler.github.io/rust-postgres/doc/v0.9.4")]
+#![doc(html_root_url="https://sfackler.github.io/rust-postgres/doc/v0.9.5")]
 #![warn(missing_docs)]
 
 extern crate bufstream;

src/types/mod.rs

@@ -815,6 +815,25 @@ pub trait ToSql: fmt::Debug {
                       -> Result<IsNull>;
 }
 
+impl<'a, T> ToSql for &'a T where T: ToSql {
+    fn to_sql_checked(&self, ty: &Type, out: &mut Write, ctx: &SessionInfo)
+                      -> Result<IsNull> {
+        if !<&'a T as ToSql>::accepts(ty) {
+            return Err(Error::WrongType(ty.clone()));
+        }
+        self.to_sql(ty, out, ctx)
+    }
+
+
+    fn to_sql<W: Write + ?Sized>(&self, ty: &Type, out: &mut W, ctx: &SessionInfo) -> Result<IsNull> {
+        (*self).to_sql(ty, out, ctx)
+    }
+
+    fn accepts(ty: &Type) -> bool { T::accepts(ty) }
+}
+
+
+
 impl<T: ToSql> ToSql for Option<T> {
     to_sql_checked!();
 

tests/types/mod.rs

@@ -31,6 +31,14 @@ fn test_type<T: PartialEq+FromSql+ToSql, S: fmt::Display>(sql_type: &str, checks
     }
 }
 
+#[test]
+fn test_ref_tosql() {
+    let conn = or_panic!(Connection::connect("postgres://postgres@localhost", &SslMode::None));
+    let stmt = conn.prepare("SELECT $1::Int").unwrap();
+    let num: &ToSql = &&7;
+    stmt.query(&[num]).unwrap();
+}
+
 #[test]
 fn test_bool_params() {
     test_type("BOOL", &[(Some(true), "'t'"), (Some(false), "'f'"),