Merge pull request #156 from jgallagher/clippy

Address clippy warnings

clippy.toml

@@ -0,0 +1 @@
+doc-valid-idents = ["SQLite", "lang_transaction"]

src/cache.rs

@@ -34,7 +34,7 @@ impl Connection {
     /// Will return `Err` if `sql` cannot be converted to a C-compatible string or if the
     /// underlying SQLite call fails.
     pub fn prepare_cached<'a>(&'a self, sql: &str) -> Result<CachedStatement<'a>> {
-        self.cache.get(&self, sql)
+        self.cache.get(self, sql)
     }
 
     /// Set the maximum number of cached prepared statements this connection will hold.

src/error.rs

@@ -160,8 +160,8 @@ impl error::Error for Error {
             Error::InvalidColumnIndex(_) |
             Error::InvalidColumnName(_) |
             Error::InvalidColumnType |
-            Error::InvalidPath(_) => None,
-            Error::StatementChangedRows(_) => None,
+            Error::InvalidPath(_) |
+            Error::StatementChangedRows(_) |
             Error::StatementFailedToInsertRow => None,
 
             #[cfg(feature = "functions")]