From 225f1c760d998b2f26107c3938d4ca8baa57c6c0 Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Fri, 26 Jul 2013 18:03:26 -0700
Subject: cleanup get_ref

---
 src/libstd/result.rs | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index acc4ece8fd5..7b660ed8624 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -47,22 +47,6 @@ pub fn get<T:Clone,U>(res: &Result<T, U>) -> T {
     }
 }
 
-/**
- * Get a reference to the value out of a successful result
- *
- * # Failure
- *
- * If the result is an error
- */
-#[inline]
-pub fn get_ref<'a, T, U>(res: &'a Result<T, U>) -> &'a T {
-    match *res {
-        Ok(ref t) => t,
-        Err(ref the_err) =>
-            fail!("get_ref called on error result: %?", *the_err)
-    }
-}
-
 /**
  * Get the value out of an error result
  *
@@ -229,8 +213,21 @@ pub fn map_err<T:Clone,E,F:Clone>(res: &Result<T, E>, op: &fn(&E) -> F)
 }
 
 impl<T, E> Result<T, E> {
+    /**
+     * Get a reference to the value out of a successful result
+     *
+     * # Failure
+     *
+     * If the result is an error
+     */
     #[inline]
-    pub fn get_ref<'a>(&'a self) -> &'a T { get_ref(self) }
+    pub fn get_ref<'a>(&'a self) -> &'a T {
+        match *self {
+        Ok(ref t) => t,
+        Err(ref the_err) =>
+            fail!("get_ref called on error result: %?", *the_err)
+        }
+    }
 
     #[inline]
     pub fn is_ok(&self) -> bool { is_ok(self) }
-- 
cgit 1.4.1-3-g733a5


From 4eb95f6d1c22419b50980d0bf8effc6e2f22feb5 Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Fri, 26 Jul 2013 18:03:44 -0700
Subject: cleanup .iter and .iter_err

---
 src/libstd/result.rs | 95 ++++++++++++++++++++++++++--------------------------
 1 file changed, 48 insertions(+), 47 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index 7b660ed8624..809244af12a 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -62,21 +62,6 @@ pub fn get_err<T, U: Clone>(res: &Result<T, U>) -> U {
     }
 }
 
-/// Returns true if the result is `ok`
-#[inline]
-pub fn is_ok<T, U>(res: &Result<T, U>) -> bool {
-    match *res {
-      Ok(_) => true,
-      Err(_) => false
-    }
-}
-
-/// Returns true if the result is `err`
-#[inline]
-pub fn is_err<T, U>(res: &Result<T, U>) -> bool {
-    !is_ok(res)
-}
-
 /**
  * Convert to the `either` type
  *
@@ -134,27 +119,8 @@ pub fn chain_err<T, U, V>(
     }
 }
 
-/**
- * Call a function based on a previous result
- *
- * If `res` is `ok` then the value is extracted and passed to `op` whereupon
- * `op`s result is returned. if `res` is `err` then it is immediately
- * returned. This function can be used to compose the results of two
- * functions.
- *
- * Example:
- *
- *     iter(read_file(file)) { |buf|
- *         print_buf(buf)
- *     }
- */
-#[inline]
-pub fn iter<T, E>(res: &Result<T, E>, f: &fn(&T)) {
-    match *res {
-      Ok(ref t) => f(t),
-      Err(_) => ()
-    }
-}
+
+
 
 /**
  * Call a function based on a previous result
@@ -164,13 +130,7 @@ pub fn iter<T, E>(res: &Result<T, E>, f: &fn(&T)) {
  * This function can be used to pass through a successful result while
  * handling an error.
  */
-#[inline]
-pub fn iter_err<T, E>(res: &Result<T, E>, f: &fn(&E)) {
-    match *res {
-      Ok(_) => (),
-      Err(ref e) => f(e)
-    }
-}
+
 
 /**
  * Call a function based on a previous result
@@ -229,17 +189,58 @@ impl<T, E> Result<T, E> {
         }
     }
 
+    /// Returns true if the result is `ok`
     #[inline]
-    pub fn is_ok(&self) -> bool { is_ok(self) }
+    pub fn is_ok(&self) -> bool {
+        match *self {
+            Ok(_) => true,
+            Err(_) => false
+        }
+    }
 
+    /// Returns true if the result is `err`
     #[inline]
-    pub fn is_err(&self) -> bool { is_err(self) }
+    pub fn is_err(&self) -> bool {
+        !self.is_ok()
+    }
 
+    /**
+     * Call a function based on a previous result
+     *
+     * If `*self` is `ok` then the value is extracted and passed to `op` whereupon
+     * `op`s result is returned. if `res` is `err` then it is immediately
+     * returned. This function can be used to compose the results of two
+     * functions.
+     *
+     * Example:
+     *
+     *     read_file(file).iter() { |buf|
+     *         print_buf(buf)
+     *     }
+     */
     #[inline]
-    pub fn iter(&self, f: &fn(&T)) { iter(self, f) }
+    pub fn iter(&self, f: &fn(&T)) {
+        match *self {
+            Ok(ref t) => f(t),
+            Err(_) => ()
+        }
+    }
 
+    /**
+     * Call a function based on a previous result
+     *
+     * If `*self` is `err` then the value is extracted and passed to `op` whereupon
+     * `op`s result is returned. if `res` is `ok` then it is immediately returned.
+     * This function can be used to pass through a successful result while
+     * handling an error.
+     */
     #[inline]
-    pub fn iter_err(&self, f: &fn(&E)) { iter_err(self, f) }
+    pub fn iter_err(&self, f: &fn(&E)) {
+        match *self {
+            Ok(_) => (),
+            Err(ref e) => f(e)
+        }
+    }
 
     #[inline]
     pub fn unwrap(self) -> T { unwrap(self) }
-- 
cgit 1.4.1-3-g733a5


From e308167a2fe558924fcebcc99358c057ae0b90b4 Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Fri, 26 Jul 2013 18:03:57 -0700
Subject: cleanup .unwrap and .unwrap_err fixing io tests

---
 src/libextra/workcache.rs |  3 +--
 src/libstd/io.rs          |  6 ++----
 src/libstd/result.rs      | 33 ++++++++++++++-------------------
 3 files changed, 17 insertions(+), 25 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libextra/workcache.rs b/src/libextra/workcache.rs
index 42210d0cd89..1cabab713b8 100644
--- a/src/libextra/workcache.rs
+++ b/src/libextra/workcache.rs
@@ -22,7 +22,6 @@ use std::cell::Cell;
 use std::comm::{PortOne, oneshot, send_one, recv_one};
 use std::either::{Either, Left, Right};
 use std::io;
-use std::result;
 use std::run;
 use std::task;
 
@@ -208,7 +207,7 @@ fn json_encode<T:Encodable<json::Encoder>>(t: &T) -> ~str {
 // FIXME(#5121)
 fn json_decode<T:Decodable<json::Decoder>>(s: &str) -> T {
     do io::with_str_reader(s) |rdr| {
-        let j = result::unwrap(json::from_reader(rdr));
+        let j = json::from_reader(rdr).unwrap();
         let mut decoder = json::Decoder(j);
         Decodable::decode(&mut decoder)
     }
diff --git a/src/libstd/io.rs b/src/libstd/io.rs
index 05a5184ccba..fcc53c33a5d 100644
--- a/src/libstd/io.rs
+++ b/src/libstd/io.rs
@@ -1851,12 +1851,10 @@ mod tests {
             ~"A hoopy frood who really knows where his towel is.";
         debug!(frood.clone());
         {
-            let out: @io::Writer =
-                result::unwrap(
-                    io::file_writer(tmpfile, [io::Create, io::Truncate]));
+            let out: @io::Writer = io::file_writer(tmpfile, [io::Create, io::Truncate]).unwrap();
             out.write_str(frood);
         }
-        let inp: @io::Reader = result::unwrap(io::file_reader(tmpfile));
+        let inp: @io::Reader = io::file_reader(tmpfile).unwrap();
         let frood2: ~str = inp.read_c_str();
         debug!(frood2.clone());
         assert_eq!(frood, frood2);
diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index 809244af12a..ec2715fcf2e 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -242,11 +242,23 @@ impl<T, E> Result<T, E> {
         }
     }
 
+    /// Unwraps a result, assuming it is an `ok(T)`
     #[inline]
-    pub fn unwrap(self) -> T { unwrap(self) }
+    pub fn unwrap(self) -> T {
+        match self {
+            Ok(t) => t,
+            Err(_) => fail!("unwrap called on an err result")
+        }
+    }
 
+    /// Unwraps a result, assuming it is an `err(U)`
     #[inline]
-    pub fn unwrap_err(self) -> E { unwrap_err(self) }
+    pub fn unwrap_err(self) -> E {
+        match self {
+            Err(u) => u,
+            Ok(_) => fail!("unwrap called on an ok result")
+        }
+    }
 
     #[inline]
     pub fn chain<U>(self, op: &fn(T) -> Result<U,E>) -> Result<U,E> {
@@ -375,23 +387,6 @@ pub fn iter_vec2<S,T,U>(ss: &[S], ts: &[T],
     return Ok(());
 }
 
-/// Unwraps a result, assuming it is an `ok(T)`
-#[inline]
-pub fn unwrap<T, U>(res: Result<T, U>) -> T {
-    match res {
-      Ok(t) => t,
-      Err(_) => fail!("unwrap called on an err result")
-    }
-}
-
-/// Unwraps a result, assuming it is an `err(U)`
-#[inline]
-pub fn unwrap_err<T, U>(res: Result<T, U>) -> U {
-    match res {
-      Err(u) => u,
-      Ok(_) => fail!("unwrap called on an ok result")
-    }
-}
 
 #[cfg(test)]
 mod tests {
-- 
cgit 1.4.1-3-g733a5


From f6bcf5d5f11a24930c8b3eea4269ba0df583b5cf Mon Sep 17 00:00:00 2001
From: maikklein <maikklein@googlemail.com>
Date: Tue, 23 Jul 2013 02:27:53 +0200
Subject: cleanup .chain and .chain_err + fixing other files

---
 src/librustc/metadata/filesearch.rs |  6 +--
 src/librustdoc/config.rs            | 26 ++++------
 src/libstd/io.rs                    | 12 ++---
 src/libstd/result.rs                | 97 +++++++++++++------------------------
 4 files changed, 54 insertions(+), 87 deletions(-)

(limited to 'src/libstd')

diff --git a/src/librustc/metadata/filesearch.rs b/src/librustc/metadata/filesearch.rs
index 6017b804b57..7ac215e3949 100644
--- a/src/librustc/metadata/filesearch.rs
+++ b/src/librustc/metadata/filesearch.rs
@@ -147,7 +147,7 @@ pub fn get_rustpkg_root() -> Result<Path, ~str> {
 }
 
 pub fn get_rustpkg_root_nearest() -> Result<Path, ~str> {
-    do result::chain(get_rustpkg_root()) |p| {
+    do get_rustpkg_root().chain |p| {
         let cwd = os::getcwd();
         let cwd_rustpkg = cwd.push(".rustpkg");
         let rustpkg_is_non_root_file =
@@ -173,13 +173,13 @@ pub fn get_rustpkg_root_nearest() -> Result<Path, ~str> {
 }
 
 fn get_rustpkg_lib_path() -> Result<Path, ~str> {
-    do result::chain(get_rustpkg_root()) |p| {
+    do get_rustpkg_root().chain |p| {
         result::Ok(p.push(libdir()))
     }
 }
 
 fn get_rustpkg_lib_path_nearest() -> Result<Path, ~str> {
-    do result::chain(get_rustpkg_root_nearest()) |p| {
+    do get_rustpkg_root_nearest().chain |p| {
         result::Ok(p.push(libdir()))
     }
 }
diff --git a/src/librustdoc/config.rs b/src/librustdoc/config.rs
index de4815ab7a6..aa3557e8a9d 100644
--- a/src/librustdoc/config.rs
+++ b/src/librustdoc/config.rs
@@ -138,7 +138,7 @@ fn config_from_opts(
 
     let config = default_config(input_crate);
     let result = result::Ok(config);
-    let result = do result::chain(result) |config| {
+    let result = do result.chain |config| {
         let output_dir = getopts::opt_maybe_str(matches, opt_output_dir());
         let output_dir = output_dir.map(|s| Path(*s));
         result::Ok(Config {
@@ -146,14 +146,10 @@ fn config_from_opts(
             .. config
         })
     };
-    let result = do result::chain(result) |config| {
-        let output_format = getopts::opt_maybe_str(
-            matches, opt_output_format());
-        do output_format.map_default(result::Ok(config.clone()))
-            |output_format| {
-            do result::chain(parse_output_format(*output_format))
-                |output_format| {
-
+    let result = do result.chain |config| {
+        let output_format = getopts::opt_maybe_str(matches, opt_output_format());
+        do output_format.map_default(result::Ok(config.clone())) |output_format| {
+            do parse_output_format(*output_format).chain |output_format| {
                 result::Ok(Config {
                     output_format: output_format,
                     .. config.clone()
@@ -161,13 +157,11 @@ fn config_from_opts(
             }
         }
     };
-    let result = do result::chain(result) |config| {
+    let result = do result.chain |config| {
         let output_style =
             getopts::opt_maybe_str(matches, opt_output_style());
-        do output_style.map_default(result::Ok(config.clone()))
-            |output_style| {
-            do result::chain(parse_output_style(*output_style))
-                |output_style| {
+        do output_style.map_default(result::Ok(config.clone())) |output_style| {
+            do parse_output_style(*output_style).chain |output_style| {
                 result::Ok(Config {
                     output_style: output_style,
                     .. config.clone()
@@ -176,11 +170,11 @@ fn config_from_opts(
         }
     };
     let process_output = Cell::new(process_output);
-    let result = do result::chain(result) |config| {
+    let result = do result.chain |config| {
         let pandoc_cmd = getopts::opt_maybe_str(matches, opt_pandoc_cmd());
         let pandoc_cmd = maybe_find_pandoc(
             &config, pandoc_cmd, process_output.take());
-        do result::chain(pandoc_cmd) |pandoc_cmd| {
+        do pandoc_cmd.chain |pandoc_cmd| {
             result::Ok(Config {
                 pandoc_cmd: pandoc_cmd,
                 .. config.clone()
diff --git a/src/libstd/io.rs b/src/libstd/io.rs
index fcc53c33a5d..0d781a1aea2 100644
--- a/src/libstd/io.rs
+++ b/src/libstd/io.rs
@@ -1726,21 +1726,21 @@ pub fn seek_in_buf(offset: int, pos: uint, len: uint, whence: SeekStyle) ->
 }
 
 pub fn read_whole_file_str(file: &Path) -> Result<~str, ~str> {
-    result::chain(read_whole_file(file), |bytes| {
+    do read_whole_file(file).chain |bytes| {
         if str::is_utf8(bytes) {
             result::Ok(str::from_bytes(bytes))
         } else {
             result::Err(file.to_str() + " is not UTF-8")
         }
-    })
+    }
 }
 
 // FIXME (#2004): implement this in a low-level way. Going through the
 // abstractions is pointless.
 pub fn read_whole_file(file: &Path) -> Result<~[u8], ~str> {
-    result::chain(file_reader(file), |rdr| {
+    do file_reader(file).chain |rdr| {
         result::Ok(rdr.read_whole_stream())
-    })
+    }
 }
 
 // fsync related
@@ -1851,10 +1851,10 @@ mod tests {
             ~"A hoopy frood who really knows where his towel is.";
         debug!(frood.clone());
         {
-            let out: @io::Writer = io::file_writer(tmpfile, [io::Create, io::Truncate]).unwrap();
+            let out = io::file_writer(tmpfile, [io::Create, io::Truncate]).unwrap();
             out.write_str(frood);
         }
-        let inp: @io::Reader = io::file_reader(tmpfile).unwrap();
+        let inp = io::file_reader(tmpfile).unwrap();
         let frood2: ~str = inp.read_c_str();
         debug!(frood2.clone());
         assert_eq!(frood, frood2);
diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index ec2715fcf2e..0aeb9654f56 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -77,61 +77,6 @@ pub fn to_either<T:Clone,U:Clone>(res: &Result<U, T>)
     }
 }
 
-/**
- * Call a function based on a previous result
- *
- * If `res` is `ok` then the value is extracted and passed to `op` whereupon
- * `op`s result is returned. if `res` is `err` then it is immediately
- * returned. This function can be used to compose the results of two
- * functions.
- *
- * Example:
- *
- *     let res = chain(read_file(file)) { |buf|
- *         ok(parse_bytes(buf))
- *     }
- */
-#[inline]
-pub fn chain<T, U, V>(res: Result<T, V>, op: &fn(T)
-    -> Result<U, V>) -> Result<U, V> {
-    match res {
-        Ok(t) => op(t),
-        Err(e) => Err(e)
-    }
-}
-
-/**
- * Call a function based on a previous result
- *
- * If `res` is `err` then the value is extracted and passed to `op`
- * whereupon `op`s result is returned. if `res` is `ok` then it is
- * immediately returned.  This function can be used to pass through a
- * successful result while handling an error.
- */
-#[inline]
-pub fn chain_err<T, U, V>(
-    res: Result<T, V>,
-    op: &fn(t: V) -> Result<T, U>)
-    -> Result<T, U> {
-    match res {
-      Ok(t) => Ok(t),
-      Err(v) => op(v)
-    }
-}
-
-
-
-
-/**
- * Call a function based on a previous result
- *
- * If `res` is `err` then the value is extracted and passed to `op` whereupon
- * `op`s result is returned. if `res` is `ok` then it is immediately returned.
- * This function can be used to pass through a successful result while
- * handling an error.
- */
-
-
 /**
  * Call a function based on a previous result
  *
@@ -208,7 +153,7 @@ impl<T, E> Result<T, E> {
      * Call a function based on a previous result
      *
      * If `*self` is `ok` then the value is extracted and passed to `op` whereupon
-     * `op`s result is returned. if `res` is `err` then it is immediately
+     * `op`s result is returned. if `*self` is `err` then it is immediately
      * returned. This function can be used to compose the results of two
      * functions.
      *
@@ -230,7 +175,7 @@ impl<T, E> Result<T, E> {
      * Call a function based on a previous result
      *
      * If `*self` is `err` then the value is extracted and passed to `op` whereupon
-     * `op`s result is returned. if `res` is `ok` then it is immediately returned.
+     * `op`s result is returned. if `*self` is `ok` then it is immediately returned.
      * This function can be used to pass through a successful result while
      * handling an error.
      */
@@ -260,14 +205,42 @@ impl<T, E> Result<T, E> {
         }
     }
 
+    /**
+     * Call a function based on a previous result
+     *
+     * If `self` is `ok` then the value is extracted and passed to `op` whereupon
+     * `op`s result is returned. if `self` is `err` then it is immediately
+     * returned. This function can be used to compose the results of two
+     * functions.
+     *
+     * Example:
+     *
+     *     let res = read_file(file).chain(op) { |buf|
+     *         ok(parse_bytes(buf))
+     *     }
+     */
     #[inline]
     pub fn chain<U>(self, op: &fn(T) -> Result<U,E>) -> Result<U,E> {
-        chain(self, op)
+        match self {
+            Ok(t) => op(t),
+            Err(e) => Err(e)
+        }
     }
 
+    /**
+    * Call a function based on a previous result
+    *
+    * If `self` is `err` then the value is extracted and passed to `op`
+    * whereupon `op`s result is returned. if `self` is `ok` then it is
+    * immediately returned.  This function can be used to pass through a
+    * successful result while handling an error.
+    */
     #[inline]
     pub fn chain_err<F>(self, op: &fn(E) -> Result<T,F>) -> Result<T,F> {
-        chain_err(self, op)
+        match self {
+            Ok(t) => Ok(t),
+            Err(v) => op(v)
+        }
     }
 }
 
@@ -390,7 +363,7 @@ pub fn iter_vec2<S,T,U>(ss: &[S], ts: &[T],
 
 #[cfg(test)]
 mod tests {
-    use result::{Err, Ok, Result, chain, get, get_err};
+    use result::{Err, Ok, Result, get, get_err};
     use result;
 
     pub fn op1() -> result::Result<int, ~str> { result::Ok(666) }
@@ -403,12 +376,12 @@ mod tests {
 
     #[test]
     pub fn chain_success() {
-        assert_eq!(get(&chain(op1(), op2)), 667u);
+        assert_eq!(get(&(op1().chain(op2))), 667u);
     }
 
     #[test]
     pub fn chain_failure() {
-        assert_eq!(get_err(&chain(op3(), op2)), ~"sadface");
+        assert_eq!(get_err(&op3().chain( op2)), ~"sadface");
     }
 
     #[test]
-- 
cgit 1.4.1-3-g733a5


From 9dc1de4c9e84a5b8625ff1f066b3f05c39531d9d Mon Sep 17 00:00:00 2001
From: maikklein <maikklein@googlemail.com>
Date: Tue, 23 Jul 2013 03:41:53 +0200
Subject: cleanup .get and .get_err

---
 src/libstd/result.rs | 65 +++++++++++++++++++++++-----------------------------
 1 file changed, 29 insertions(+), 36 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index 0aeb9654f56..54c901f3a24 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -31,37 +31,6 @@ pub enum Result<T, U> {
     Err(U)
 }
 
-/**
- * Get the value out of a successful result
- *
- * # Failure
- *
- * If the result is an error
- */
-#[inline]
-pub fn get<T:Clone,U>(res: &Result<T, U>) -> T {
-    match *res {
-      Ok(ref t) => (*t).clone(),
-      Err(ref the_err) =>
-        fail!("get called on error result: %?", *the_err)
-    }
-}
-
-/**
- * Get the value out of an error result
- *
- * # Failure
- *
- * If the result is not an error
- */
-#[inline]
-pub fn get_err<T, U: Clone>(res: &Result<T, U>) -> U {
-    match *res {
-      Err(ref u) => (*u).clone(),
-      Ok(_) => fail!("get_err called on ok result")
-    }
-}
-
 /**
  * Convert to the `either` type
  *
@@ -245,8 +214,20 @@ impl<T, E> Result<T, E> {
 }
 
 impl<T:Clone,E> Result<T, E> {
+    /**
+     * Get the value out of a successful result
+     *
+     * # Failure
+     *
+     * If the result is an error
+     */
     #[inline]
-    pub fn get(&self) -> T { get(self) }
+    pub fn get(&self) -> T {
+        match *self {
+            Ok(ref t) => (*t).clone(),
+            Err(ref e) => fail!("get called on error result: %?", *e),
+        }
+    }
 
     #[inline]
     pub fn map_err<F:Clone>(&self, op: &fn(&E) -> F) -> Result<T,F> {
@@ -255,8 +236,20 @@ impl<T:Clone,E> Result<T, E> {
 }
 
 impl<T, E:Clone> Result<T, E> {
+    /**
+     * Get the value out of an error result
+     *
+     * # Failure
+     *
+     * If the result is not an error
+     */
     #[inline]
-    pub fn get_err(&self) -> E { get_err(self) }
+    pub fn get_err(&self) -> E {
+        match *self {
+            Err(ref u) => (*u).clone(),
+            Ok(_) => fail!("get_err called on ok result"),
+        }
+    }
 
     #[inline]
     pub fn map<U:Clone>(&self, op: &fn(&T) -> U) -> Result<U,E> {
@@ -363,7 +356,7 @@ pub fn iter_vec2<S,T,U>(ss: &[S], ts: &[T],
 
 #[cfg(test)]
 mod tests {
-    use result::{Err, Ok, Result, get, get_err};
+    use result::{Err, Ok, Result};
     use result;
 
     pub fn op1() -> result::Result<int, ~str> { result::Ok(666) }
@@ -376,12 +369,12 @@ mod tests {
 
     #[test]
     pub fn chain_success() {
-        assert_eq!(get(&(op1().chain(op2))), 667u);
+        assert_eq!(op1().chain(op2).get(), 667u);
     }
 
     #[test]
     pub fn chain_failure() {
-        assert_eq!(get_err(&op3().chain( op2)), ~"sadface");
+        assert_eq!(op3().chain( op2).get_err(), ~"sadface");
     }
 
     #[test]
-- 
cgit 1.4.1-3-g733a5


From aad53cb6e298192cc75cd5769a1b997a3457666c Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Fri, 26 Jul 2013 19:19:33 -0700
Subject: cleanup .map and .map_err

---
 src/libstd/result.rs | 73 ++++++++++++++++++++++++----------------------------
 1 file changed, 33 insertions(+), 40 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index 54c901f3a24..8e44a42e038 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -46,45 +46,10 @@ pub fn to_either<T:Clone,U:Clone>(res: &Result<U, T>)
     }
 }
 
-/**
- * Call a function based on a previous result
- *
- * If `res` is `ok` then the value is extracted and passed to `op` whereupon
- * `op`s result is wrapped in `ok` and returned. if `res` is `err` then it is
- * immediately returned.  This function can be used to compose the results of
- * two functions.
- *
- * Example:
- *
- *     let res = map(read_file(file)) { |buf|
- *         parse_bytes(buf)
- *     }
- */
-#[inline]
-pub fn map<T, E: Clone, U: Clone>(res: &Result<T, E>, op: &fn(&T) -> U)
-  -> Result<U, E> {
-    match *res {
-      Ok(ref t) => Ok(op(t)),
-      Err(ref e) => Err((*e).clone())
-    }
-}
 
-/**
- * Call a function based on a previous result
- *
- * If `res` is `err` then the value is extracted and passed to `op` whereupon
- * `op`s result is wrapped in an `err` and returned. if `res` is `ok` then it
- * is immediately returned.  This function can be used to pass through a
- * successful result while handling an error.
- */
-#[inline]
-pub fn map_err<T:Clone,E,F:Clone>(res: &Result<T, E>, op: &fn(&E) -> F)
-  -> Result<T, F> {
-    match *res {
-      Ok(ref t) => Ok((*t).clone()),
-      Err(ref e) => Err(op(e))
-    }
-}
+
+
+
 
 impl<T, E> Result<T, E> {
     /**
@@ -229,9 +194,20 @@ impl<T:Clone,E> Result<T, E> {
         }
     }
 
+    /**
+    * Call a function based on a previous result
+    *
+    * If `*self` is `err` then the value is extracted and passed to `op` whereupon
+    * `op`s result is wrapped in an `err` and returned. if `*self` is `ok` then it
+    * is immediately returned.  This function can be used to pass through a
+    * successful result while handling an error.
+    */
     #[inline]
     pub fn map_err<F:Clone>(&self, op: &fn(&E) -> F) -> Result<T,F> {
-        map_err(self, op)
+        match *self {
+            Ok(ref t) => Ok(t.clone()),
+            Err(ref e) => Err(op(e))
+        }
     }
 }
 
@@ -251,9 +227,26 @@ impl<T, E:Clone> Result<T, E> {
         }
     }
 
+    /**
+    * Call a function based on a previous result
+    *
+    * If `res` is `ok` then the value is extracted and passed to `op` whereupon
+    * `op`s result is wrapped in `ok` and returned. if `res` is `err` then it is
+    * immediately returned.  This function can be used to compose the results of
+    * two functions.
+    *
+    * Example:
+    *
+    *     let res = map(read_file(file)) { |buf|
+    *         parse_bytes(buf)
+    *     }
+    */
     #[inline]
     pub fn map<U:Clone>(&self, op: &fn(&T) -> U) -> Result<U,E> {
-        map(self, op)
+        match *self {
+            Ok(ref t) => Ok(op(t)),
+            Err(ref e) => Err(e.clone())
+        }
     }
 }
 
-- 
cgit 1.4.1-3-g733a5


From 2a68c719f4a32123fbd428fe280f41af47d00fea Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Fri, 26 Jul 2013 18:36:51 -0700
Subject: to_either + fixes

---
 src/libextra/json.rs                          | 19 +++---
 src/libextra/time.rs                          |  8 +--
 src/librustpkg/tests.rs                       |  4 +-
 src/libstd/result.rs                          | 94 ++++++++++++++-------------
 src/test/bench/core-std.rs                    |  2 +-
 src/test/bench/shootout-fasta.rs              |  4 +-
 src/test/bench/shootout-k-nucleotide-pipes.rs |  2 +-
 src/test/run-fail/result-get-fail.rs          |  2 +-
 src/test/run-pass/cleanup-copy-mode.rs        |  4 +-
 src/test/run-pass/issue-4016.rs               |  3 +-
 10 files changed, 71 insertions(+), 71 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libextra/json.rs b/src/libextra/json.rs
index 6a7f0607dd6..4cd67d6ebac 100644
--- a/src/libextra/json.rs
+++ b/src/libextra/json.rs
@@ -1867,27 +1867,26 @@ mod tests {
                 col: 8u,
                 msg: @~"EOF while parsing object"}));
 
-        assert_eq!(result::unwrap(from_str("{}")), mk_object([]));
-        assert_eq!(result::unwrap(from_str("{\"a\": 3}")),
+        assert_eq!(from_str("{}").unwrap(), mk_object([]));
+        assert_eq!(from_str("{\"a\": 3}").unwrap(),
                   mk_object([(~"a", Number(3.0f))]));
 
-        assert_eq!(result::unwrap(from_str(
-                      "{ \"a\": null, \"b\" : true }")),
+        assert_eq!(from_str(
+                      "{ \"a\": null, \"b\" : true }").unwrap(),
                   mk_object([
                       (~"a", Null),
                       (~"b", Boolean(true))]));
-        assert_eq!(result::unwrap(
-                      from_str("\n{ \"a\": null, \"b\" : true }\n")),
+        assert_eq!(from_str("\n{ \"a\": null, \"b\" : true }\n").unwrap(),
                   mk_object([
                       (~"a", Null),
                       (~"b", Boolean(true))]));
-        assert_eq!(result::unwrap(from_str(
-                      "{\"a\" : 1.0 ,\"b\": [ true ]}")),
+        assert_eq!(from_str(
+                      "{\"a\" : 1.0 ,\"b\": [ true ]}").unwrap(),
                   mk_object([
                       (~"a", Number(1.0)),
                       (~"b", List(~[Boolean(true)]))
                   ]));
-        assert_eq!(result::unwrap(from_str(
+        assert_eq!(from_str(
                       ~"{" +
                           "\"a\": 1.0, " +
                           "\"b\": [" +
@@ -1895,7 +1894,7 @@ mod tests {
                               "\"foo\\nbar\", " +
                               "{ \"c\": {\"d\": null} } " +
                           "]" +
-                      "}")),
+                      "}").unwrap(),
                   mk_object([
                       (~"a", Number(1.0f)),
                       (~"b", List(~[
diff --git a/src/libextra/time.rs b/src/libextra/time.rs
index b1c07e83f52..f926572dad6 100644
--- a/src/libextra/time.rs
+++ b/src/libextra/time.rs
@@ -1132,13 +1132,13 @@ mod tests {
         assert!(test("6", "%w"));
         assert!(test("2009", "%Y"));
         assert!(test("09", "%y"));
-        assert!(result::unwrap(strptime("UTC", "%Z")).tm_zone ==
+        assert!(strptime("UTC", "%Z").unwrap().tm_zone ==
             ~"UTC");
-        assert!(result::unwrap(strptime("PST", "%Z")).tm_zone ==
+        assert!(strptime("PST", "%Z").unwrap().tm_zone ==
             ~"");
-        assert!(result::unwrap(strptime("-0000", "%z")).tm_gmtoff ==
+        assert!(strptime("-0000", "%z").unwrap().tm_gmtoff ==
             0);
-        assert!(result::unwrap(strptime("-0800", "%z")).tm_gmtoff ==
+        assert!(strptime("-0800", "%z").unwrap().tm_gmtoff ==
             0);
         assert!(test("%", "%%"));
 
diff --git a/src/librustpkg/tests.rs b/src/librustpkg/tests.rs
index 286b1f84802..a203fccfb5f 100644
--- a/src/librustpkg/tests.rs
+++ b/src/librustpkg/tests.rs
@@ -62,9 +62,7 @@ fn git_repo_pkg() -> PkgId {
 }
 
 fn writeFile(file_path: &Path, contents: &str) {
-    let out: @io::Writer =
-        result::unwrap(io::file_writer(file_path,
-                                       [io::Create, io::Truncate]));
+    let out = io::file_writer(file_path, [io::Create, io::Truncate]).unwrap();
     out.write_line(contents);
 }
 
diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index 8e44a42e038..f43b3e73113 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -31,27 +31,21 @@ pub enum Result<T, U> {
     Err(U)
 }
 
-/**
- * Convert to the `either` type
- *
- * `ok` result variants are converted to `either::right` variants, `err`
- * result variants are converted to `either::left`.
- */
-#[inline]
-pub fn to_either<T:Clone,U:Clone>(res: &Result<U, T>)
-    -> Either<T, U> {
-    match *res {
-      Ok(ref res) => either::Right((*res).clone()),
-      Err(ref fail_) => either::Left((*fail_).clone())
+impl<T, E> Result<T, E> {
+    /**
+     * Convert to the `either` type
+     *
+     * `ok` result variants are converted to `either::right` variants, `err`
+     * result variants are converted to `either::left`.
+     */
+    #[inline]
+    pub fn to_either(self)-> Either<E, T>{
+        match self {
+            Ok(t) => either::Right(t),
+            Err(e) => either::Left(e),
+        }
     }
-}
-
-
-
 
-
-
-impl<T, E> Result<T, E> {
     /**
      * Get a reference to the value out of a successful result
      *
@@ -84,7 +78,7 @@ impl<T, E> Result<T, E> {
     }
 
     /**
-     * Call a function based on a previous result
+     * Call a method based on a previous result
      *
      * If `*self` is `ok` then the value is extracted and passed to `op` whereupon
      * `op`s result is returned. if `*self` is `err` then it is immediately
@@ -106,7 +100,7 @@ impl<T, E> Result<T, E> {
     }
 
     /**
-     * Call a function based on a previous result
+     * Call a method based on a previous result
      *
      * If `*self` is `err` then the value is extracted and passed to `op` whereupon
      * `op`s result is returned. if `*self` is `ok` then it is immediately returned.
@@ -140,7 +134,7 @@ impl<T, E> Result<T, E> {
     }
 
     /**
-     * Call a function based on a previous result
+     * Call a method based on a previous result
      *
      * If `self` is `ok` then the value is extracted and passed to `op` whereupon
      * `op`s result is returned. if `self` is `err` then it is immediately
@@ -149,9 +143,9 @@ impl<T, E> Result<T, E> {
      *
      * Example:
      *
-     *     let res = read_file(file).chain(op) { |buf|
+     *     let res = do read_file(file).chain |buf| {
      *         ok(parse_bytes(buf))
-     *     }
+     *     };
      */
     #[inline]
     pub fn chain<U>(self, op: &fn(T) -> Result<U,E>) -> Result<U,E> {
@@ -162,7 +156,7 @@ impl<T, E> Result<T, E> {
     }
 
     /**
-    * Call a function based on a previous result
+    * Call a method based on a previous result
     *
     * If `self` is `err` then the value is extracted and passed to `op`
     * whereupon `op`s result is returned. if `self` is `ok` then it is
@@ -195,13 +189,13 @@ impl<T:Clone,E> Result<T, E> {
     }
 
     /**
-    * Call a function based on a previous result
-    *
-    * If `*self` is `err` then the value is extracted and passed to `op` whereupon
-    * `op`s result is wrapped in an `err` and returned. if `*self` is `ok` then it
-    * is immediately returned.  This function can be used to pass through a
-    * successful result while handling an error.
-    */
+     * Call a method based on a previous result
+     *
+     * If `*self` is `err` then the value is extracted and passed to `op` whereupon
+     * `op`s result is wrapped in an `err` and returned. if `*self` is `ok` then it
+     * is immediately returned.  This function can be used to pass through a
+     * successful result while handling an error.
+     */
     #[inline]
     pub fn map_err<F:Clone>(&self, op: &fn(&E) -> F) -> Result<T,F> {
         match *self {
@@ -228,19 +222,19 @@ impl<T, E:Clone> Result<T, E> {
     }
 
     /**
-    * Call a function based on a previous result
-    *
-    * If `res` is `ok` then the value is extracted and passed to `op` whereupon
-    * `op`s result is wrapped in `ok` and returned. if `res` is `err` then it is
-    * immediately returned.  This function can be used to compose the results of
-    * two functions.
-    *
-    * Example:
-    *
-    *     let res = map(read_file(file)) { |buf|
-    *         parse_bytes(buf)
-    *     }
-    */
+     * Call a method based on a previous result
+     *
+     * If `res` is `ok` then the value is extracted and passed to `op` whereupon
+     * `op`s result is wrapped in `ok` and returned. if `res` is `err` then it is
+     * immediately returned.  This function can be used to compose the results of
+     * two functions.
+     *
+     * Example:
+     *
+     *     let res = read_file(file).map() { |buf|
+     *         parse_bytes(buf)
+     *     });
+     */
     #[inline]
     pub fn map<U:Clone>(&self, op: &fn(&T) -> U) -> Result<U,E> {
         match *self {
@@ -351,6 +345,7 @@ pub fn iter_vec2<S,T,U>(ss: &[S], ts: &[T],
 mod tests {
     use result::{Err, Ok, Result};
     use result;
+    use either;
 
     pub fn op1() -> result::Result<int, ~str> { result::Ok(666) }
 
@@ -408,4 +403,13 @@ mod tests {
         let foo: Result<int, ()> = Ok(100);
         assert_eq!(*foo.get_ref(), 100);
     }
+
+    #[test]
+    pub fn test_to_either() {
+        let r: Result<int, ()> = Ok(100);
+        let err: Result<(), int> = Err(404);
+
+        assert_eq!(r.to_either(), either::Right(100));
+        assert_eq!(err.to_either(), either::Left(404));
+    }
 }
diff --git a/src/test/bench/core-std.rs b/src/test/bench/core-std.rs
index 0d93bdb6f94..754181f9cd8 100644
--- a/src/test/bench/core-std.rs
+++ b/src/test/bench/core-std.rs
@@ -75,7 +75,7 @@ fn read_line() {
         .push_rel(&Path("src/test/bench/shootout-k-nucleotide.data"));
 
     for int::range(0, 3) |_i| {
-        let reader = result::unwrap(io::file_reader(&path));
+        let reader = io::file_reader(&path).unwrap();
         while !reader.eof() {
             reader.read_line();
         }
diff --git a/src/test/bench/shootout-fasta.rs b/src/test/bench/shootout-fasta.rs
index 5d05817e512..4597212b390 100644
--- a/src/test/bench/shootout-fasta.rs
+++ b/src/test/bench/shootout-fasta.rs
@@ -124,8 +124,8 @@ fn main() {
     };
 
     let writer = if os::getenv("RUST_BENCH").is_some() {
-        result::unwrap(io::file_writer(&Path("./shootout-fasta.data"),
-                                       [io::Truncate, io::Create]))
+        io::file_writer(&Path("./shootout-fasta.data"),
+                        [io::Truncate, io::Create]).unwrap()
     } else {
         io::stdout()
     };
diff --git a/src/test/bench/shootout-k-nucleotide-pipes.rs b/src/test/bench/shootout-k-nucleotide-pipes.rs
index 46b882f7b82..8b4664ac060 100644
--- a/src/test/bench/shootout-k-nucleotide-pipes.rs
+++ b/src/test/bench/shootout-k-nucleotide-pipes.rs
@@ -161,7 +161,7 @@ fn main() {
        // get to this massive data set, but include_bin! chokes on it (#2598)
        let path = Path(env!("CFG_SRC_DIR"))
            .push_rel(&Path("src/test/bench/shootout-k-nucleotide.data"));
-       result::unwrap(io::file_reader(&path))
+       io::file_reader(&path).unwrap()
    } else {
       io::stdin()
    };
diff --git a/src/test/run-fail/result-get-fail.rs b/src/test/run-fail/result-get-fail.rs
index cb9cce3249f..6e5005fe03d 100644
--- a/src/test/run-fail/result-get-fail.rs
+++ b/src/test/run-fail/result-get-fail.rs
@@ -13,5 +13,5 @@
 use std::result;
 
 fn main() {
-  error!(result::get(&result::Err::<int,~str>(~"kitty")));
+  error!(result::Err::<int,~str>(~"kitty").get());
 }
diff --git a/src/test/run-pass/cleanup-copy-mode.rs b/src/test/run-pass/cleanup-copy-mode.rs
index 2446e9057c2..45375efe9d6 100644
--- a/src/test/run-pass/cleanup-copy-mode.rs
+++ b/src/test/run-pass/cleanup-copy-mode.rs
@@ -16,7 +16,7 @@ use std::task;
 fn adder(x: @int, y: @int) -> int { return *x + *y; }
 fn failer() -> @int { fail!(); }
 pub fn main() {
-    assert!(result::is_err(&task::try(|| {
+    assert!(task::try(|| {
         adder(@2, failer()); ()
-    })));
+    }).is_err());
 }
diff --git a/src/test/run-pass/issue-4016.rs b/src/test/run-pass/issue-4016.rs
index 6b0dd6cb947..c4178961d9e 100644
--- a/src/test/run-pass/issue-4016.rs
+++ b/src/test/run-pass/issue-4016.rs
@@ -11,14 +11,13 @@
 
 extern mod extra;
 
-use std::result;
 use extra::json;
 use extra::serialize::Decodable;
 
 trait JD : Decodable<json::Decoder> { }
 
 fn exec<T: JD>() {
-    let doc = result::unwrap(json::from_str(""));
+    let doc = json::from_str("").unwrap();
     let mut decoder = json::Decoder(doc);
     let _v: T = Decodable::decode(&mut decoder);
     fail!()
-- 
cgit 1.4.1-3-g733a5


From 03a16dbb8e6341e622f7d09c9be99ec5502239f3 Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Tue, 23 Jul 2013 21:29:02 -0700
Subject: std: fix the casing of option::{Some,None} in the docs

---
 src/libstd/option.rs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/option.rs b/src/libstd/option.rs
index eb3f227562a..ff35af4cff0 100644
--- a/src/libstd/option.rs
+++ b/src/libstd/option.rs
@@ -271,7 +271,7 @@ impl<T> Option<T> {
     pub fn get_ref<'a>(&'a self) -> &'a T {
         match *self {
           Some(ref x) => x,
-          None => fail!("option::get_ref None")
+          None => fail!("option::get_ref `None`"),
         }
     }
 
@@ -293,7 +293,7 @@ impl<T> Option<T> {
     pub fn get_mut_ref<'a>(&'a mut self) -> &'a mut T {
         match *self {
           Some(ref mut x) => x,
-          None => fail!("option::get_mut_ref None")
+          None => fail!("option::get_mut_ref `None`"),
         }
     }
 
@@ -317,7 +317,7 @@ impl<T> Option<T> {
          */
         match self {
           Some(x) => x,
-          None => fail!("option::unwrap None")
+          None => fail!("option::unwrap `None`"),
         }
     }
 
@@ -331,7 +331,7 @@ impl<T> Option<T> {
      */
     #[inline]
     pub fn take_unwrap(&mut self) -> T {
-        if self.is_none() { fail!("option::take_unwrap None") }
+        if self.is_none() { fail!("option::take_unwrap `None`") }
         self.take().unwrap()
     }
 
@@ -369,7 +369,7 @@ impl<T> Option<T> {
     pub fn get(self) -> T {
         match self {
           Some(x) => return x,
-          None => fail!("option::get None")
+          None => fail!("option::get `None`")
         }
     }
 
@@ -379,7 +379,7 @@ impl<T> Option<T> {
         match self { Some(x) => x, None => def }
     }
 
-    /// Applies a function zero or more times until the result is None.
+    /// Applies a function zero or more times until the result is `None`.
     #[inline]
     pub fn while_some(self, blk: &fn(v: T) -> Option<T>) {
         let mut opt = self;
-- 
cgit 1.4.1-3-g733a5


From 796b3371f9bbb6f6ed189219d1b055d7ed737e78 Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Tue, 23 Jul 2013 21:30:25 -0700
Subject: std: Put the option tests into a tests submodule

---
 src/libstd/option.rs | 216 ++++++++++++++++++++++++++-------------------------
 1 file changed, 111 insertions(+), 105 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/option.rs b/src/libstd/option.rs
index ff35af4cff0..6e4880550eb 100644
--- a/src/libstd/option.rs
+++ b/src/libstd/option.rs
@@ -441,134 +441,140 @@ impl<'self, A> Iterator<&'self mut A> for OptionMutIterator<'self, A> {
     }
 }
 
-#[test]
-fn test_unwrap_ptr() {
-    unsafe {
-        let x = ~0;
-        let addr_x: *int = ::cast::transmute(&*x);
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use util;
+
+    #[test]
+    fn test_unwrap_ptr() {
+        unsafe {
+            let x = ~0;
+            let addr_x: *int = ::cast::transmute(&*x);
+            let opt = Some(x);
+            let y = opt.unwrap();
+            let addr_y: *int = ::cast::transmute(&*y);
+            assert_eq!(addr_x, addr_y);
+        }
+    }
+
+    #[test]
+    fn test_unwrap_str() {
+        let x = ~"test";
+        let addr_x = x.as_imm_buf(|buf, _len| buf);
         let opt = Some(x);
         let y = opt.unwrap();
-        let addr_y: *int = ::cast::transmute(&*y);
+        let addr_y = y.as_imm_buf(|buf, _len| buf);
         assert_eq!(addr_x, addr_y);
     }
-}
 
-#[test]
-fn test_unwrap_str() {
-    let x = ~"test";
-    let addr_x = x.as_imm_buf(|buf, _len| buf);
-    let opt = Some(x);
-    let y = opt.unwrap();
-    let addr_y = y.as_imm_buf(|buf, _len| buf);
-    assert_eq!(addr_x, addr_y);
-}
+    #[test]
+    fn test_unwrap_resource() {
+        struct R {
+           i: @mut int,
+        }
 
-#[test]
-fn test_unwrap_resource() {
-    struct R {
-       i: @mut int,
-    }
+        #[unsafe_destructor]
+        impl ::ops::Drop for R {
+           fn drop(&self) { *(self.i) += 1; }
+        }
 
-    #[unsafe_destructor]
-    impl ::ops::Drop for R {
-       fn drop(&self) { *(self.i) += 1; }
-    }
+        fn R(i: @mut int) -> R {
+            R {
+                i: i
+            }
+        }
 
-    fn R(i: @mut int) -> R {
-        R {
-            i: i
+        let i = @mut 0;
+        {
+            let x = R(i);
+            let opt = Some(x);
+            let _y = opt.unwrap();
         }
+        assert_eq!(*i, 1);
     }
 
-    let i = @mut 0;
-    {
-        let x = R(i);
-        let opt = Some(x);
-        let _y = opt.unwrap();
+    #[test]
+    fn test_option_dance() {
+        let x = Some(());
+        let mut y = Some(5);
+        let mut y2 = 0;
+        for x.iter().advance |_x| {
+            y2 = y.take_unwrap();
+        }
+        assert_eq!(y2, 5);
+        assert!(y.is_none());
+    }
+    #[test] #[should_fail] #[ignore(cfg(windows))]
+    fn test_option_too_much_dance() {
+        let mut y = Some(util::NonCopyable);
+        let _y2 = y.take_unwrap();
+        let _y3 = y.take_unwrap();
+    }
+
+    #[test]
+    fn test_option_while_some() {
+        let mut i = 0;
+        do Some(10).while_some |j| {
+            i += 1;
+            if (j > 0) {
+                Some(j-1)
+            } else {
+                None
+            }
+        }
+        assert_eq!(i, 11);
     }
-    assert_eq!(*i, 1);
-}
 
-#[test]
-fn test_option_dance() {
-    let x = Some(());
-    let mut y = Some(5);
-    let mut y2 = 0;
-    for x.iter().advance |_x| {
-        y2 = y.take_unwrap();
+    #[test]
+    fn test_get_or_zero() {
+        let some_stuff = Some(42);
+        assert_eq!(some_stuff.get_or_zero(), 42);
+        let no_stuff: Option<int> = None;
+        assert_eq!(no_stuff.get_or_zero(), 0);
     }
-    assert_eq!(y2, 5);
-    assert!(y.is_none());
-}
-#[test] #[should_fail] #[ignore(cfg(windows))]
-fn test_option_too_much_dance() {
-    let mut y = Some(util::NonCopyable);
-    let _y2 = y.take_unwrap();
-    let _y3 = y.take_unwrap();
-}
 
-#[test]
-fn test_option_while_some() {
-    let mut i = 0;
-    do Some(10).while_some |j| {
-        i += 1;
-        if (j > 0) {
-            Some(j-1)
-        } else {
-            None
-        }
+    #[test]
+    fn test_filtered() {
+        let some_stuff = Some(42);
+        let modified_stuff = some_stuff.filtered(|&x| {x < 10});
+        assert_eq!(some_stuff.get(), 42);
+        assert!(modified_stuff.is_none());
     }
-    assert_eq!(i, 11);
-}
 
-#[test]
-fn test_get_or_zero() {
-    let some_stuff = Some(42);
-    assert_eq!(some_stuff.get_or_zero(), 42);
-    let no_stuff: Option<int> = None;
-    assert_eq!(no_stuff.get_or_zero(), 0);
-}
+    #[test]
+    fn test_iter() {
+        let val = 5;
 
-#[test]
-fn test_filtered() {
-    let some_stuff = Some(42);
-    let modified_stuff = some_stuff.filtered(|&x| {x < 10});
-    assert_eq!(some_stuff.get(), 42);
-    assert!(modified_stuff.is_none());
-}
+        let x = Some(val);
+        let mut it = x.iter();
 
-#[test]
-fn test_iter() {
-    let val = 5;
-
-    let x = Some(val);
-    let mut it = x.iter();
-
-    assert_eq!(it.size_hint(), (1, Some(1)));
-    assert_eq!(it.next(), Some(&val));
-    assert_eq!(it.size_hint(), (0, Some(0)));
-    assert!(it.next().is_none());
-}
+        assert_eq!(it.size_hint(), (1, Some(1)));
+        assert_eq!(it.next(), Some(&val));
+        assert_eq!(it.size_hint(), (0, Some(0)));
+        assert!(it.next().is_none());
+    }
 
-#[test]
-fn test_mut_iter() {
-    let val = 5;
-    let new_val = 11;
+    #[test]
+    fn test_mut_iter() {
+        let val = 5;
+        let new_val = 11;
 
-    let mut x = Some(val);
-    let mut it = x.mut_iter();
+        let mut x = Some(val);
+        let mut it = x.mut_iter();
 
-    assert_eq!(it.size_hint(), (1, Some(1)));
+        assert_eq!(it.size_hint(), (1, Some(1)));
 
-    match it.next() {
-        Some(interior) => {
-            assert_eq!(*interior, val);
-            *interior = new_val;
-            assert_eq!(x, Some(new_val));
+        match it.next() {
+            Some(interior) => {
+                assert_eq!(*interior, val);
+                *interior = new_val;
+                assert_eq!(x, Some(new_val));
+            }
+            None => assert!(false),
         }
-        None => assert!(false),
-    }
 
-    assert_eq!(it.size_hint(), (0, Some(0)));
-    assert!(it.next().is_none());
+        assert_eq!(it.size_hint(), (0, Some(0)));
+        assert!(it.next().is_none());
+    }
 }
-- 
cgit 1.4.1-3-g733a5


From ea106f72f7d28b3fc977899b6f272d5b69cbbc31 Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Wed, 24 Jul 2013 20:41:13 -0700
Subject: core: correct the casing of result::{Ok,Err} in the docs

---
 src/libstd/result.rs                 | 116 +++++++++++++++++------------------
 src/test/run-fail/result-get-fail.rs |   2 +-
 2 files changed, 58 insertions(+), 60 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index f43b3e73113..5919acc1125 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -35,8 +35,8 @@ impl<T, E> Result<T, E> {
     /**
      * Convert to the `either` type
      *
-     * `ok` result variants are converted to `either::right` variants, `err`
-     * result variants are converted to `either::left`.
+     * `Ok` result variants are converted to `either::Right` variants, `Err`
+     * result variants are converted to `either::Left`.
      */
     #[inline]
     pub fn to_either(self)-> Either<E, T>{
@@ -56,13 +56,12 @@ impl<T, E> Result<T, E> {
     #[inline]
     pub fn get_ref<'a>(&'a self) -> &'a T {
         match *self {
-        Ok(ref t) => t,
-        Err(ref the_err) =>
-            fail!("get_ref called on error result: %?", *the_err)
+            Ok(ref t) => t,
+            Err(ref e) => fail!("get_ref called on `Err` result: %?", *e),
         }
     }
 
-    /// Returns true if the result is `ok`
+    /// Returns true if the result is `Ok`
     #[inline]
     pub fn is_ok(&self) -> bool {
         match *self {
@@ -71,7 +70,7 @@ impl<T, E> Result<T, E> {
         }
     }
 
-    /// Returns true if the result is `err`
+    /// Returns true if the result is `Err`
     #[inline]
     pub fn is_err(&self) -> bool {
         !self.is_ok()
@@ -80,14 +79,14 @@ impl<T, E> Result<T, E> {
     /**
      * Call a method based on a previous result
      *
-     * If `*self` is `ok` then the value is extracted and passed to `op` whereupon
-     * `op`s result is returned. if `*self` is `err` then it is immediately
-     * returned. This function can be used to compose the results of two
-     * functions.
+     * If `self` is `Ok` then the value is extracted and passed to `op`
+     * whereupon `op`s result is returned. if `self` is `Err` then it is
+     * immediately returned. This function can be used to compose the results
+     * of two functions.
      *
      * Example:
      *
-     *     read_file(file).iter() { |buf|
+     *     do read_file(file).iter |buf| {
      *         print_buf(buf)
      *     }
      */
@@ -95,84 +94,84 @@ impl<T, E> Result<T, E> {
     pub fn iter(&self, f: &fn(&T)) {
         match *self {
             Ok(ref t) => f(t),
-            Err(_) => ()
+            Err(_) => (),
         }
     }
 
     /**
      * Call a method based on a previous result
      *
-     * If `*self` is `err` then the value is extracted and passed to `op` whereupon
-     * `op`s result is returned. if `*self` is `ok` then it is immediately returned.
-     * This function can be used to pass through a successful result while
-     * handling an error.
+     * If `self` is `Err` then the value is extracted and passed to `op`
+     * whereupon `op`s result is returned. if `self` is `Ok` then it is
+     * immediately returned.  This function can be used to pass through a
+     * successful result while handling an error.
      */
     #[inline]
     pub fn iter_err(&self, f: &fn(&E)) {
         match *self {
             Ok(_) => (),
-            Err(ref e) => f(e)
+            Err(ref e) => f(e),
         }
     }
 
-    /// Unwraps a result, assuming it is an `ok(T)`
+    /// Unwraps a result, assuming it is an `Ok(T)`
     #[inline]
     pub fn unwrap(self) -> T {
         match self {
             Ok(t) => t,
-            Err(_) => fail!("unwrap called on an err result")
+            Err(_) => fail!("unwrap called on an `Err` result"),
         }
     }
 
-    /// Unwraps a result, assuming it is an `err(U)`
+    /// Unwraps a result, assuming it is an `Err(U)`
     #[inline]
     pub fn unwrap_err(self) -> E {
         match self {
-            Err(u) => u,
-            Ok(_) => fail!("unwrap called on an ok result")
+            Err(e) => e,
+            Ok(_) => fail!("unwrap called on an `Ok` result"),
         }
     }
 
     /**
      * Call a method based on a previous result
      *
-     * If `self` is `ok` then the value is extracted and passed to `op` whereupon
-     * `op`s result is returned. if `self` is `err` then it is immediately
-     * returned. This function can be used to compose the results of two
-     * functions.
+     * If `self` is `Ok` then the value is extracted and passed to `op`
+     * whereupon `op`s result is returned. if `self` is `Err` then it is
+     * immediately returned. This function can be used to compose the results
+     * of two functions.
      *
      * Example:
      *
-     *     let res = do read_file(file).chain |buf| {
-     *         ok(parse_bytes(buf))
+     *     let res = do read_file(file) |buf| {
+     *         Ok(parse_bytes(buf))
      *     };
      */
     #[inline]
-    pub fn chain<U>(self, op: &fn(T) -> Result<U,E>) -> Result<U,E> {
+    pub fn chain<U>(self, op: &fn(T) -> Result<U, E>) -> Result<U, E> {
         match self {
             Ok(t) => op(t),
-            Err(e) => Err(e)
+            Err(e) => Err(e),
         }
     }
 
     /**
-    * Call a method based on a previous result
-    *
-    * If `self` is `err` then the value is extracted and passed to `op`
-    * whereupon `op`s result is returned. if `self` is `ok` then it is
-    * immediately returned.  This function can be used to pass through a
-    * successful result while handling an error.
-    */
+     * Call a function based on a previous result
+     *
+     * If `self` is `Err` then the value is extracted and passed to `op`
+     * whereupon `op`s result is returned. if `self` is `Ok` then it is
+     * immediately returned.  This function can be used to pass through a
+     * successful result while handling an error.
+     */
     #[inline]
-    pub fn chain_err<F>(self, op: &fn(E) -> Result<T,F>) -> Result<T,F> {
+    pub fn chain_err<F>(self, op: &fn(E) -> Result<T, F>) -> Result<T, F> {
         match self {
             Ok(t) => Ok(t),
-            Err(v) => op(v)
+            Err(e) => op(e),
         }
     }
 }
 
-impl<T:Clone,E> Result<T, E> {
+impl<T: Clone, E> Result<T, E> {
     /**
      * Get the value out of a successful result
      *
@@ -183,18 +182,18 @@ impl<T:Clone,E> Result<T, E> {
     #[inline]
     pub fn get(&self) -> T {
         match *self {
-            Ok(ref t) => (*t).clone(),
-            Err(ref e) => fail!("get called on error result: %?", *e),
+            Ok(ref t) => t.clone(),
+            Err(ref e) => fail!("get called on `Err` result: %?", *e),
         }
     }
 
     /**
      * Call a method based on a previous result
      *
-     * If `*self` is `err` then the value is extracted and passed to `op` whereupon
-     * `op`s result is wrapped in an `err` and returned. if `*self` is `ok` then it
-     * is immediately returned.  This function can be used to pass through a
-     * successful result while handling an error.
+     * If `self` is `Err` then the value is extracted and passed to `op`
+     * whereupon `op`s result is wrapped in an `Err` and returned. if `self` is
+     * `Ok` then it is immediately returned.  This function can be used to pass
+     * through a successful result while handling an error.
      */
     #[inline]
     pub fn map_err<F:Clone>(&self, op: &fn(&E) -> F) -> Result<T,F> {
@@ -205,7 +204,7 @@ impl<T:Clone,E> Result<T, E> {
     }
 }
 
-impl<T, E:Clone> Result<T, E> {
+impl<T, E: Clone> Result<T, E> {
     /**
      * Get the value out of an error result
      *
@@ -216,24 +215,24 @@ impl<T, E:Clone> Result<T, E> {
     #[inline]
     pub fn get_err(&self) -> E {
         match *self {
-            Err(ref u) => (*u).clone(),
-            Ok(_) => fail!("get_err called on ok result"),
+            Err(ref e) => e.clone(),
+            Ok(_) => fail!("get_err called on `Ok` result")
         }
     }
 
     /**
      * Call a method based on a previous result
      *
-     * If `res` is `ok` then the value is extracted and passed to `op` whereupon
-     * `op`s result is wrapped in `ok` and returned. if `res` is `err` then it is
-     * immediately returned.  This function can be used to compose the results of
-     * two functions.
+     * If `self` is `Ok` then the value is extracted and passed to `op`
+     * whereupon `op`s result is wrapped in `Ok` and returned. if `self` is
+     * `Err` then it is immediately returned.  This function can be used to
+     * compose the results of two functions.
      *
      * Example:
      *
-     *     let res = read_file(file).map() { |buf|
+     *     let res = do read_file(file).map |buf| {
      *         parse_bytes(buf)
-     *     });
+     *     };
      */
     #[inline]
     pub fn map<U:Clone>(&self, op: &fn(&T) -> U) -> Result<U,E> {
@@ -254,8 +253,8 @@ impl<T, E:Clone> Result<T, E> {
  * checking for overflow:
  *
  *     fn inc_conditionally(x: uint) -> result<uint,str> {
- *         if x == uint::max_value { return err("overflow"); }
- *         else { return ok(x+1u); }
+ *         if x == uint::max_value { return Err("overflow"); }
+ *         else { return Ok(x+1u); }
  *     }
  *     map(~[1u, 2u, 3u], inc_conditionally).chain {|incd|
  *         assert!(incd == ~[2u, 3u, 4u]);
@@ -340,7 +339,6 @@ pub fn iter_vec2<S,T,U>(ss: &[S], ts: &[T],
     return Ok(());
 }
 
-
 #[cfg(test)]
 mod tests {
     use result::{Err, Ok, Result};
diff --git a/src/test/run-fail/result-get-fail.rs b/src/test/run-fail/result-get-fail.rs
index 6e5005fe03d..782ce61cab2 100644
--- a/src/test/run-fail/result-get-fail.rs
+++ b/src/test/run-fail/result-get-fail.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// error-pattern:get called on error result: ~"kitty"
+// error-pattern:get called on `Err` result: ~"kitty"
 
 use std::result;
 
-- 
cgit 1.4.1-3-g733a5


From 3478589b99b296b1c0014478826f03f848b536bf Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Wed, 24 Jul 2013 20:23:38 -0700
Subject: std and rustc: cleanup uses of result methods

---
 src/libstd/io.rs | 52 +++++++++++++++++++++++++---------------------------
 1 file changed, 25 insertions(+), 27 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/io.rs b/src/libstd/io.rs
index 0d781a1aea2..761d07da805 100644
--- a/src/libstd/io.rs
+++ b/src/libstd/io.rs
@@ -46,28 +46,26 @@ implement `Reader` and `Writer`, where appropriate.
 
 #[allow(missing_doc)];
 
-use result::Result;
-
+use cast;
 use clone::Clone;
 use container::Container;
 use int;
-use libc;
-use libc::{c_int, c_long, c_void, size_t, ssize_t};
+use iterator::IteratorUtil;
 use libc::consts::os::posix88::*;
+use libc::{c_int, c_long, c_void, size_t, ssize_t};
+use libc;
 use num;
+use ops::Drop;
 use os;
-use cast;
 use path::Path;
-use ops::Drop;
-use iterator::IteratorUtil;
 use ptr;
-use result;
-use str;
+use result::{Result, Ok, Err};
 use str::{StrSlice, OwnedStr};
+use str;
 use to_str::ToStr;
 use uint;
-use vec;
 use vec::{MutableVector, ImmutableVector, OwnedVector, OwnedCopyableVector, CopyableVector};
+use vec;
 
 #[allow(non_camel_case_types)] // not sure what to do about this
 pub type fd_t = c_int;
@@ -1038,9 +1036,9 @@ pub fn file_reader(path: &Path) -> Result<@Reader, ~str> {
     };
 
     if f as uint == 0u {
-        result::Err(~"error opening " + path.to_str())
+        Err(~"error opening " + path.to_str())
     } else {
-        result::Ok(FILE_reader(f, true))
+        Ok(FILE_reader(f, true))
     }
 }
 
@@ -1287,10 +1285,9 @@ pub fn mk_file_writer(path: &Path, flags: &[FileFlag])
         }
     };
     if fd < (0 as c_int) {
-        result::Err(fmt!("error opening %s: %s", path.to_str(),
-                         os::last_os_error()))
+        Err(fmt!("error opening %s: %s", path.to_str(), os::last_os_error()))
     } else {
-        result::Ok(fd_writer(fd, true))
+        Ok(fd_writer(fd, true))
     }
 }
 
@@ -1559,7 +1556,7 @@ impl<T:Writer> WriterUtil for T {
 }
 
 pub fn file_writer(path: &Path, flags: &[FileFlag]) -> Result<@Writer, ~str> {
-    mk_file_writer(path, flags).chain(|w| result::Ok(w))
+    mk_file_writer(path, flags).chain(|w| Ok(w))
 }
 
 
@@ -1572,9 +1569,9 @@ pub fn buffered_file_writer(path: &Path) -> Result<@Writer, ~str> {
             }
         };
         return if f as uint == 0u {
-            result::Err(~"error opening " + path.to_str())
+            Err(~"error opening " + path.to_str())
         } else {
-            result::Ok(FILE_writer(f, true))
+            Ok(FILE_writer(f, true))
         }
     }
 }
@@ -1728,9 +1725,9 @@ pub fn seek_in_buf(offset: int, pos: uint, len: uint, whence: SeekStyle) ->
 pub fn read_whole_file_str(file: &Path) -> Result<~str, ~str> {
     do read_whole_file(file).chain |bytes| {
         if str::is_utf8(bytes) {
-            result::Ok(str::from_bytes(bytes))
+            Ok(str::from_bytes(bytes))
         } else {
-            result::Err(file.to_str() + " is not UTF-8")
+            Err(file.to_str() + " is not UTF-8")
         }
     }
 }
@@ -1739,7 +1736,7 @@ pub fn read_whole_file_str(file: &Path) -> Result<~str, ~str> {
 // abstractions is pointless.
 pub fn read_whole_file(file: &Path) -> Result<~[u8], ~str> {
     do file_reader(file).chain |rdr| {
-        result::Ok(rdr.read_whole_stream())
+        Ok(rdr.read_whole_stream())
     }
 }
 
@@ -1839,6 +1836,7 @@ mod tests {
     use io::{BytesWriter, SeekCur, SeekEnd, SeekSet};
     use io;
     use path::Path;
+    use result::{Ok, Err};
     use result;
     use u64;
     use vec;
@@ -1939,10 +1937,10 @@ mod tests {
     #[test]
     fn file_reader_not_exist() {
         match io::file_reader(&Path("not a file")) {
-          result::Err(e) => {
+          Err(e) => {
             assert_eq!(e, ~"error opening not a file");
           }
-          result::Ok(_) => fail!()
+          Ok(_) => fail!()
         }
     }
 
@@ -1980,20 +1978,20 @@ mod tests {
     #[test]
     fn file_writer_bad_name() {
         match io::file_writer(&Path("?/?"), []) {
-          result::Err(e) => {
+          Err(e) => {
             assert!(e.starts_with("error opening"));
           }
-          result::Ok(_) => fail!()
+          Ok(_) => fail!()
         }
     }
 
     #[test]
     fn buffered_file_writer_bad_name() {
         match io::buffered_file_writer(&Path("?/?")) {
-          result::Err(e) => {
+          Err(e) => {
             assert!(e.starts_with("error opening"));
           }
-          result::Ok(_) => fail!()
+          Ok(_) => fail!()
         }
     }
 
-- 
cgit 1.4.1-3-g733a5


From b147d70b08f93ea0a13a5331f413d547819b2f4c Mon Sep 17 00:00:00 2001
From: Erick Tryzelaar <erick.tryzelaar@gmail.com>
Date: Wed, 24 Jul 2013 20:25:18 -0700
Subject: std: cleanup imports in result::tests

---
 src/libstd/result.rs | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/result.rs b/src/libstd/result.rs
index 5919acc1125..c045c191488 100644
--- a/src/libstd/result.rs
+++ b/src/libstd/result.rs
@@ -15,7 +15,6 @@
 use clone::Clone;
 use cmp::Eq;
 use either;
-use either::Either;
 use iterator::IteratorUtil;
 use option::{None, Option, Some};
 use vec;
@@ -39,7 +38,7 @@ impl<T, E> Result<T, E> {
      * result variants are converted to `either::Left`.
      */
     #[inline]
-    pub fn to_either(self)-> Either<E, T>{
+    pub fn to_either(self)-> either::Either<E, T>{
         match self {
             Ok(t) => either::Right(t),
             Err(e) => either::Left(e),
@@ -341,17 +340,16 @@ pub fn iter_vec2<S,T,U>(ss: &[S], ts: &[T],
 
 #[cfg(test)]
 mod tests {
-    use result::{Err, Ok, Result};
-    use result;
+    use super::*;
     use either;
 
-    pub fn op1() -> result::Result<int, ~str> { result::Ok(666) }
+    pub fn op1() -> Result<int, ~str> { Ok(666) }
 
-    pub fn op2(i: int) -> result::Result<uint, ~str> {
-        result::Ok(i as uint + 1u)
+    pub fn op2(i: int) -> Result<uint, ~str> {
+        Ok(i as uint + 1u)
     }
 
-    pub fn op3() -> result::Result<int, ~str> { result::Err(~"sadface") }
+    pub fn op3() -> Result<int, ~str> { Err(~"sadface") }
 
     #[test]
     pub fn chain_success() {
-- 
cgit 1.4.1-3-g733a5