Merge branch 'origin/master' into flat-map

jeremystucki · jeremystucki · commit 2bfcf89f8219 · 2019-08-14T07:36:37.000+02:00
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs
@@ -1094,11 +1094,12 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Methods {
                         (Predicate::Projection(poly_projection_predicate), _) => {
                             let binder = poly_projection_predicate.ty();
                             let associated_type = binder.skip_binder();
-                            let associated_type_is_self_type = same_tys(cx, ty, associated_type);
 
-                            // if the associated type is self, early return and do not trigger lint
-                            if associated_type_is_self_type {
-                                return;
+                            // walk the associated type and check for Self
+                            for inner_type in associated_type.walk() {
+                                if same_tys(cx, ty, inner_type) {
+                                    return;
+                                }
                             }
                         },
                         (_, _) => {},
diff --git a/clippy_lints/src/write.rs b/clippy_lints/src/write.rs
@@ -73,7 +73,7 @@ declare_clippy_lint! {
     /// lint is to catch debugging remnants.
     ///
     /// **Why is this bad?** The purpose of the `Debug` trait is to facilitate
-    /// debugging Rust code. It should not be used in in user-facing output.
+    /// debugging Rust code. It should not be used in user-facing output.
     ///
     /// **Example:**
     /// ```rust
diff --git a/doc/adding_lints.md b/doc/adding_lints.md
@@ -10,6 +10,7 @@ because that's clearly a non-descriptive name.
 * [Setup](#Setup)
 * [Testing](#Testing)
 * [Rustfix tests](#Rustfix-tests)
+* [Edition 2018 tests](#Edition-2018-tests)
 * [Lint declaration](#Lint-declaration)
 * [Lint passes](#Lint-passes)
 * [Emitting a lint](#Emitting-a-lint)
@@ -101,6 +102,12 @@ Use `tests/ui/update-all-references.sh` to automatically generate the
 
 With tests in place, let's have a look at implementing our lint now.
 
+### Edition 2018 tests
+
+Some features require the 2018 edition to work (e.g. `async_await`), but
+compile-test tests run on the 2015 edition by default. To change this behavior
+add `// compile-flags: --edition 2018` at the top of the test file.
+
 ### Testing manually
 
 Manually testing against an example file can be useful if you have added some
diff --git a/tests/ui/methods.rs b/tests/ui/methods.rs
@@ -1,5 +1,7 @@
 // aux-build:option_helpers.rs
+// compile-flags: --edition 2018
 
+#![feature(async_await)]
 #![warn(clippy::all, clippy::pedantic, clippy::option_unwrap_used)]
 #![allow(
     clippy::blacklisted_name,
@@ -11,7 +13,6 @@
     clippy::needless_pass_by_value,
     clippy::default_trait_access,
     clippy::use_self,
-    clippy::new_ret_no_self,
     clippy::useless_format,
     clippy::wrong_self_convention
 )]
@@ -138,6 +139,22 @@ impl<T> V<T> {
     }
 }
 
+struct AsyncNew;
+
+impl AsyncNew {
+    async fn new() -> Option<Self> {
+        None
+    }
+}
+
+struct BadNew;
+
+impl BadNew {
+    fn new() -> i32 {
+        0
+    }
+}
+
 impl Mul<T> for T {
     type Output = T;
     // No error, obviously.
diff --git a/tests/ui/methods.stderr b/tests/ui/methods.stderr
@@ -1,5 +1,5 @@
 error: defining a method called `add` on this type; consider implementing the `std::ops::Add` trait or choosing a less ambiguous name
-  --> $DIR/methods.rs:36:5
+  --> $DIR/methods.rs:37:5
    |
 LL | /     pub fn add(self, other: T) -> T {
 LL | |         self
@@ -8,8 +8,18 @@ LL | |     }
    |
    = note: `-D clippy::should-implement-trait` implied by `-D warnings`
 
+error: methods called `new` usually return `Self`
+  --> $DIR/methods.rs:153:5
+   |
+LL | /     fn new() -> i32 {
+LL | |         0
+LL | |     }
+   | |_____^
+   |
+   = note: `-D clippy::new-ret-no-self` implied by `-D warnings`
+
 error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
-  --> $DIR/methods.rs:158:13
+  --> $DIR/methods.rs:175:13
    |
 LL |       let _ = opt.map(|x| x + 1)
    |  _____________^
@@ -21,7 +31,7 @@ LL | |                .unwrap_or(0);
    = note: replace `map(|x| x + 1).unwrap_or(0)` with `map_or(0, |x| x + 1)`
 
 error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
-  --> $DIR/methods.rs:162:13
+  --> $DIR/methods.rs:179:13
    |
 LL |       let _ = opt.map(|x| {
    |  _____________^
@@ -31,7 +41,7 @@ LL | |               ).unwrap_or(0);
    | |____________________________^
 
 error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
-  --> $DIR/methods.rs:166:13
+  --> $DIR/methods.rs:183:13
    |
 LL |       let _ = opt.map(|x| x + 1)
    |  _____________^
@@ -41,15 +51,15 @@ LL | |                 });
    | |__________________^
 
 error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
-  --> $DIR/methods.rs:171:13
+  --> $DIR/methods.rs:188:13
    |
 LL |     let _ = opt.map(|x| Some(x + 1)).unwrap_or(None);
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
 
 error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
-  --> $DIR/methods.rs:173:13
+  --> $DIR/methods.rs:190:13
    |
 LL |       let _ = opt.map(|x| {
    |  _____________^
@@ -59,7 +69,7 @@ LL | |     ).unwrap_or(None);
    | |_____________________^
 
 error: called `map(f).unwrap_or(None)` on an Option value. This can be done more directly by calling `and_then(f)` instead
-  --> $DIR/methods.rs:177:13
+  --> $DIR/methods.rs:194:13
    |
 LL |       let _ = opt
    |  _____________^
@@ -70,15 +80,15 @@ LL | |         .unwrap_or(None);
    = note: replace `map(|x| Some(x + 1)).unwrap_or(None)` with `and_then(|x| Some(x + 1))`
 
 error: called `map(f).unwrap_or(a)` on an Option value. This can be done more directly by calling `map_or(a, f)` instead
-  --> $DIR/methods.rs:188:13
+  --> $DIR/methods.rs:205:13
    |
 LL |     let _ = Some("prefix").map(|p| format!("{}.", p)).unwrap_or(id);
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: replace `map(|p| format!("{}.", p)).unwrap_or(id)` with `map_or(id, |p| format!("{}.", p))`
 
 error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
-  --> $DIR/methods.rs:192:13
+  --> $DIR/methods.rs:209:13
    |
 LL |       let _ = opt.map(|x| x + 1)
    |  _____________^
@@ -90,7 +100,7 @@ LL | |                .unwrap_or_else(|| 0);
    = note: replace `map(|x| x + 1).unwrap_or_else(|| 0)` with `map_or_else(|| 0, |x| x + 1)`
 
 error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
-  --> $DIR/methods.rs:196:13
+  --> $DIR/methods.rs:213:13
    |
 LL |       let _ = opt.map(|x| {
    |  _____________^
@@ -100,7 +110,7 @@ LL | |               ).unwrap_or_else(|| 0);
    | |____________________________________^
 
 error: called `map(f).unwrap_or_else(g)` on an Option value. This can be done more directly by calling `map_or_else(g, f)` instead
-  --> $DIR/methods.rs:200:13
+  --> $DIR/methods.rs:217:13
    |
 LL |       let _ = opt.map(|x| x + 1)
    |  _____________^
@@ -110,7 +120,7 @@ LL | |                 );
    | |_________________^
 
 error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
-  --> $DIR/methods.rs:230:13
+  --> $DIR/methods.rs:247:13
    |
 LL |     let _ = v.iter().filter(|&x| *x < 0).next();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -119,7 +129,7 @@ LL |     let _ = v.iter().filter(|&x| *x < 0).next();
    = note: replace `filter(|&x| *x < 0).next()` with `find(|&x| *x < 0)`
 
 error: called `filter(p).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(p)` instead.
-  --> $DIR/methods.rs:233:13
+  --> $DIR/methods.rs:250:13
    |
 LL |       let _ = v.iter().filter(|&x| {
    |  _____________^
@@ -129,7 +139,7 @@ LL | |                    ).next();
    | |___________________________^
 
 error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
-  --> $DIR/methods.rs:249:13
+  --> $DIR/methods.rs:266:13
    |
 LL |     let _ = v.iter().find(|&x| *x < 0).is_some();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -138,7 +148,7 @@ LL |     let _ = v.iter().find(|&x| *x < 0).is_some();
    = note: replace `find(|&x| *x < 0).is_some()` with `any(|x| *x < 0)`
 
 error: called `is_some()` after searching an `Iterator` with find. This is more succinctly expressed by calling `any()`.
-  --> $DIR/methods.rs:252:13
+  --> $DIR/methods.rs:269:13
    |
 LL |       let _ = v.iter().find(|&x| {
    |  _____________^
@@ -148,15 +158,15 @@ LL | |                    ).is_some();
    | |______________________________^
 
 error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
-  --> $DIR/methods.rs:258:13
+  --> $DIR/methods.rs:275:13
    |
 LL |     let _ = v.iter().position(|&x| x < 0).is_some();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: replace `position(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
 
 error: called `is_some()` after searching an `Iterator` with position. This is more succinctly expressed by calling `any()`.
-  --> $DIR/methods.rs:261:13
+  --> $DIR/methods.rs:278:13
    |
 LL |       let _ = v.iter().position(|&x| {
    |  _____________^
@@ -166,15 +176,15 @@ LL | |                    ).is_some();
    | |______________________________^
 
 error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
-  --> $DIR/methods.rs:267:13
+  --> $DIR/methods.rs:284:13
    |
 LL |     let _ = v.iter().rposition(|&x| x < 0).is_some();
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: replace `rposition(|&x| x < 0).is_some()` with `any(|&x| x < 0)`
 
 error: called `is_some()` after searching an `Iterator` with rposition. This is more succinctly expressed by calling `any()`.
-  --> $DIR/methods.rs:270:13
+  --> $DIR/methods.rs:287:13
    |
 LL |       let _ = v.iter().rposition(|&x| {
    |  _____________^
@@ -184,12 +194,12 @@ LL | |                    ).is_some();
    | |______________________________^
 
 error: used unwrap() on an Option value. If you don't want to handle the None case gracefully, consider using expect() to provide a better panic message
-  --> $DIR/methods.rs:285:13
+  --> $DIR/methods.rs:302:13
    |
 LL |     let _ = opt.unwrap();
    |             ^^^^^^^^^^^^
    |
    = note: `-D clippy::option-unwrap-used` implied by `-D warnings`
 
-error: aborting due to 20 previous errors
+error: aborting due to 21 previous errors
 
diff --git a/util/fetch_prs_between.sh b/util/fetch_prs_between.sh
@@ -14,7 +14,12 @@ IFS='
 for pr in $(git log --oneline --grep "Merge #" --grep "Merge pull request" --grep "Auto merge of" "$first...$last" | sort -rn | uniq); do
   id=$(echo $pr | rg -o '#[0-9]{3,5}' | cut -c 2-)
   commit=$(echo $pr | cut -d' ' -f 1)
+  message=$(git --no-pager show --pretty=medium $commit)
+  if [ ! -z $(echo "$message" | rg "^[\s]{4}changelog: [nN]one\.*$") ]; then
+    continue
+  fi
+
   echo "URL: https://github.com/rust-lang/rust-clippy/pull/$id"
-  echo "$(git --no-pager show --pretty=medium $commit)"
+  echo "$message"
   echo "---------------------------------------------------------\n"
 done
