Move needless_collect into the methods lint pass

Author: Jarcho

clippy_lints/src/declared_lints.rs

@@ -237,7 +237,6 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::loops::MANUAL_MEMCPY_INFO,
     crate::loops::MISSING_SPIN_LOOP_INFO,
     crate::loops::MUT_RANGE_BOUND_INFO,
-    crate::loops::NEEDLESS_COLLECT_INFO,
     crate::loops::NEEDLESS_RANGE_LOOP_INFO,
     crate::loops::NEVER_LOOP_INFO,
     crate::loops::SAME_ITEM_PUSH_INFO,
@@ -346,6 +345,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::methods::MAP_UNWRAP_OR_INFO,
     crate::methods::MUT_MUTEX_LOCK_INFO,
     crate::methods::NAIVE_BYTECOUNT_INFO,
+    crate::methods::NEEDLESS_COLLECT_INFO,
     crate::methods::NEEDLESS_OPTION_AS_DEREF_INFO,
     crate::methods::NEEDLESS_OPTION_TAKE_INFO,
     crate::methods::NEEDLESS_SPLITN_INFO,

clippy_lints/src/loops/mod.rs

@@ -9,7 +9,6 @@ mod manual_flatten;
 mod manual_memcpy;
 mod missing_spin_loop;
 mod mut_range_bound;
-mod needless_collect;
 mod needless_range_loop;
 mod never_loop;
 mod same_item_push;
@@ -205,28 +204,6 @@ declare_clippy_lint! {
     "`loop { if let { ... } else break }`, which can be written as a `while let` loop"
 }
 
-declare_clippy_lint! {
-    /// ### What it does
-    /// Checks for functions collecting an iterator when collect
-    /// is not needed.
-    ///
-    /// ### Why is this bad?
-    /// `collect` causes the allocation of a new data structure,
-    /// when this allocation may not be needed.
-    ///
-    /// ### Example
-    /// ```rust
-    /// # let iterator = vec![1].into_iter();
-    /// let len = iterator.clone().collect::<Vec<_>>().len();
-    /// // should be
-    /// let len = iterator.count();
-    /// ```
-    #[clippy::version = "1.30.0"]
-    pub NEEDLESS_COLLECT,
-    nursery,
-    "collecting an iterator when collect is not needed"
-}
-
 declare_clippy_lint! {
     /// ### What it does
     /// Checks `for` loops over slices with an explicit counter
@@ -605,7 +582,6 @@ declare_lint_pass!(Loops => [
     EXPLICIT_INTO_ITER_LOOP,
     ITER_NEXT_LOOP,
     WHILE_LET_LOOP,
-    NEEDLESS_COLLECT,
     EXPLICIT_COUNTER_LOOP,
     EMPTY_LOOP,
     WHILE_LET_ON_ITERATOR,
@@ -667,8 +643,6 @@ impl<'tcx> LateLintPass<'tcx> for Loops {
             while_immutable_condition::check(cx, condition, body);
             missing_spin_loop::check(cx, condition, body);
         }
-
-        needless_collect::check(expr, cx);
     }
 }
 

clippy_lints/src/methods/mod.rs

@@ -54,6 +54,7 @@ mod map_flatten;
 mod map_identity;
 mod map_unwrap_or;
 mod mut_mutex_lock;
+mod needless_collect;
 mod needless_option_as_deref;
 mod needless_option_take;
 mod no_effect_replace;
@@ -3141,6 +3142,28 @@ declare_clippy_lint! {
     "jumping to the start of stream using `seek` method"
 }
 
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks for functions collecting an iterator when collect
+    /// is not needed.
+    ///
+    /// ### Why is this bad?
+    /// `collect` causes the allocation of a new data structure,
+    /// when this allocation may not be needed.
+    ///
+    /// ### Example
+    /// ```rust
+    /// # let iterator = vec![1].into_iter();
+    /// let len = iterator.clone().collect::<Vec<_>>().len();
+    /// // should be
+    /// let len = iterator.count();
+    /// ```
+    #[clippy::version = "1.30.0"]
+    pub NEEDLESS_COLLECT,
+    nursery,
+    "collecting an iterator when collect is not needed"
+}
+
 pub struct Methods {
     avoid_breaking_exported_api: bool,
     msrv: Option<RustcVersion>,
@@ -3267,6 +3290,7 @@ impl_lint_pass!(Methods => [
     ITER_KV_MAP,
     SEEK_FROM_CURRENT,
     SEEK_TO_START_INSTEAD_OF_REWIND,
+    NEEDLESS_COLLECT,
 ]);
 
 /// Extracts a method call name, args, and `Span` of the method name.
@@ -3317,6 +3341,8 @@ impl<'tcx> LateLintPass<'tcx> for Methods {
             },
             _ => (),
         }
+
+        needless_collect::check(expr, cx);
     }
 
     #[allow(clippy::too_many_lines)]