From 0813f352058fc7966ceb957a7a6b1e3fdc06bc3d Mon Sep 17 00:00:00 2001
From: KodrAus <kodraus@hey.com>
Date: Mon, 15 Nov 2021 10:55:38 +1000
Subject: [PATCH 1/2] fix up level iterators

---
 src/lib.rs | 36 +++++++++++++++++++++++++++++-------
 1 file changed, 29 insertions(+), 7 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index f924e3255..65c498534 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -561,11 +561,22 @@ impl Level {
         LOG_LEVEL_NAMES[*self as usize]
     }
 
-    /// Iterate through all supported logging levels
+    /// Iterate through all supported logging levels.
     ///
-    /// The order of iteration is from more severe to less severe log messages
+    /// The order of iteration is from more severe to less severe log messages.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use log::Level;
+    ///
+    /// let mut levels = Level::iter();
+    ///
+    /// assert_eq!(Some(Level::Error), levels.next());
+    /// assert_eq!(Some(Level::Trace), levels.last());
+    /// ```
     pub fn iter() -> impl Iterator<Item = Self> {
-        (1..).flat_map(Self::from_usize)
+        (1..6).flat_map(Self::from_usize)
     }
 }
 
@@ -709,6 +720,7 @@ impl LevelFilter {
             _ => None,
         }
     }
+
     /// Returns the most verbose logging level filter.
     #[inline]
     pub fn max() -> LevelFilter {
@@ -730,11 +742,22 @@ impl LevelFilter {
         LOG_LEVEL_NAMES[*self as usize]
     }
 
-    /// Iterate through all supported filtering levels
+    /// Iterate through all supported filtering levels.
     ///
-    /// The order of iteration is from less to more verbose filtering
+    /// The order of iteration is from less to more verbose filtering.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use log::LevelFilter;
+    ///
+    /// let mut levels = LevelFilter::iter();
+    ///
+    /// assert_eq!(Some(LevelFilter::Off), levels.next());
+    /// assert_eq!(Some(LevelFilter::Trace), levels.last());
+    /// ```
     pub fn iter() -> impl Iterator<Item = Self> {
-        (0..).flat_map(Self::from_usize)
+        (0..6).flat_map(Self::from_usize)
     }
 }
 
@@ -929,7 +952,6 @@ impl<'a> Record<'a> {
 ///
 /// # Examples
 ///
-///
 /// ```edition2018
 /// use log::{Level, Record};
 ///

From d394b0c3c3c88d6294577de6c0f234c7348176b8 Mon Sep 17 00:00:00 2001
From: KodrAus <kodraus@hey.com>
Date: Mon, 15 Nov 2021 11:00:04 +1000
Subject: [PATCH 2/2] just unwrap since they're always valid

---
 src/lib.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 65c498534..bfd0819e9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -576,7 +576,7 @@ impl Level {
     /// assert_eq!(Some(Level::Trace), levels.last());
     /// ```
     pub fn iter() -> impl Iterator<Item = Self> {
-        (1..6).flat_map(Self::from_usize)
+        (1..6).map(|i| Self::from_usize(i).unwrap())
     }
 }
 
@@ -757,7 +757,7 @@ impl LevelFilter {
     /// assert_eq!(Some(LevelFilter::Trace), levels.last());
     /// ```
     pub fn iter() -> impl Iterator<Item = Self> {
-        (0..6).flat_map(Self::from_usize)
+        (0..6).map(|i| Self::from_usize(i).unwrap())
     }
 }