move to rust 2018

Cargo.toml

@@ -21,6 +21,7 @@ repository = "https://github.com/stainless-steel/sqlite"
 readme = "README.md"
 categories = ["api-bindings", "database"]
 keywords = ["database"]
+edition = "2018"
 
 [lib]
 name = "marine_sqlite_connector"

src/connection.rs

@@ -1,9 +1,9 @@
-use sqlite3_connector as ffi;
+use crate::sqlite3_connector as ffi;
 
 use std::marker::PhantomData;
 use std::path::Path;
 
-use {Result, Statement};
+use crate::{Result, Statement};
 
 /// A database connection.
 pub struct Connection {
@@ -33,14 +33,14 @@ impl Connection {
             match result.ret_code {
                 ffi::SQLITE_OK => {}
                 code => {
-                    return match ::last_error(result.db_handle) {
+                    return match crate::last_error(result.db_handle) {
                         Some(error) => {
                             ffi::sqlite3_close(result.db_handle);
                             Err(error)
                         }
                         _ => {
                             ffi::sqlite3_close(result.db_handle);
-                            Err(::Error {
+                            Err(crate::Error {
                                 code: Some(code as isize),
                                 message: None,
                             })
@@ -91,7 +91,7 @@ impl Connection {
     /// Create a prepared statement.
     #[inline]
     pub fn prepare<T: AsRef<str>>(&self, statement: T) -> Result<Statement> {
-        ::statement::new(self.raw, statement)
+        crate::statement::new(self.raw, statement)
     }
 
     /// Return the number of rows inserted, updated, or deleted by the most

src/cursor.rs

@@ -1,6 +1,6 @@
-use sqlite3_connector as ffi;
-use statement::{State, Statement};
-use {Result, Value};
+use crate::sqlite3_connector as ffi;
+use crate::statement::{State, Statement};
+use crate::{Result, Value};
 
 /// An iterator over rows.
 pub struct Cursor {

src/lib.rs

@@ -108,9 +108,9 @@ use std::{error, fmt};
 
 macro_rules! error(
     ($connection:expr, $code:expr) => (
-        match ::last_error($connection) {
+        match crate::last_error($connection) {
             Some(error) => return Err(error),
-            _ => return Err(::Error {
+            _ => return Err(crate::Error {
                 code: Some($code as isize),
                 message: None,
             }),
@@ -121,7 +121,7 @@ macro_rules! error(
 macro_rules! ok_descr(
     ($connection:expr, $result:expr) => (
         match $result.ret_code {
-            ::ffi::SQLITE_OK => {}
+            crate::ffi::SQLITE_OK => {}
             code => error!($connection, code),
         }
     );
@@ -139,7 +139,7 @@ macro_rules! ok_descr(
 macro_rules! ok_raw(
     ($connection:expr, $result:expr) => (
         match $result {
-            ::ffi::SQLITE_OK => {}
+            crate::ffi::SQLITE_OK => {}
             code => error!($connection, code),
         }
     );

src/statement.rs

@@ -1,7 +1,7 @@
-use sqlite3_connector as ffi;
+use crate::sqlite3_connector as ffi;
 use std::marker::PhantomData;
 
-use {Cursor, Result, Type, Value};
+use crate::{Cursor, Result, Type, Value};
 
 /// A prepared statement.
 pub struct Statement {
@@ -31,7 +31,7 @@ pub trait Readable: Sized {
     /// Read from a column.
     ///
     /// The leftmost column has the index 0.
-    fn read(&Statement, usize) -> Result<Self>;
+    fn read(_: &Statement, _: usize) -> Result<Self>;
 }
 
 impl Statement {
@@ -108,7 +108,7 @@ impl Statement {
     /// Upgrade to a cursor.
     #[inline]
     pub fn cursor(self) -> Cursor {
-        ::cursor::new(self)
+        crate::cursor::new(self)
     }
 
     /// Return the raw pointer.