From 9285727e95cd5b909362ab58c2301c77547f0b99 Mon Sep 17 00:00:00 2001
From: Andrew <andrew@digerati.co.nz>
Date: Tue, 2 May 2023 01:22:47 +1200
Subject: [PATCH] Restrict functions to pub(crate) where appropriate

---
 src/colors.rs  | 6 +++---
 src/filters.rs | 9 +++++----
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/colors.rs b/src/colors.rs
index 59a0c360..22f24f19 100644
--- a/src/colors.rs
+++ b/src/colors.rs
@@ -56,7 +56,7 @@ impl ColorType {
     }
 
     #[inline]
-    pub fn channels_per_pixel(&self) -> u8 {
+    pub(crate) fn channels_per_pixel(&self) -> u8 {
         match self {
             ColorType::Grayscale { .. } | ColorType::Indexed { .. } => 1,
             ColorType::GrayscaleAlpha => 2,
@@ -66,12 +66,12 @@ impl ColorType {
     }
 
     #[inline]
-    pub fn is_rgb(&self) -> bool {
+    pub(crate) fn is_rgb(&self) -> bool {
         matches!(self, ColorType::RGB { .. } | ColorType::RGBA)
     }
 
     #[inline]
-    pub fn has_alpha(&self) -> bool {
+    pub(crate) fn has_alpha(&self) -> bool {
         matches!(self, ColorType::GrayscaleAlpha | ColorType::RGBA)
     }
 
diff --git a/src/filters.rs b/src/filters.rs
index 1fec39e6..a2136139 100644
--- a/src/filters.rs
+++ b/src/filters.rs
@@ -53,10 +53,11 @@ impl Display for RowFilter {
 
 impl RowFilter {
     pub const LAST: u8 = Self::Brute as u8;
-    pub const STANDARD: [Self; 5] = [Self::None, Self::Sub, Self::Up, Self::Average, Self::Paeth];
-    pub const SINGLE_LINE: [Self; 2] = [Self::None, Self::Sub];
+    pub(crate) const STANDARD: [Self; 5] =
+        [Self::None, Self::Sub, Self::Up, Self::Average, Self::Paeth];
+    pub(crate) const SINGLE_LINE: [Self; 2] = [Self::None, Self::Sub];
 
-    pub fn filter_line(
+    pub(crate) fn filter_line(
         self,
         bpp: usize,
         data: &mut [u8],
@@ -176,7 +177,7 @@ impl RowFilter {
         }
     }
 
-    pub fn unfilter_line(
+    pub(crate) fn unfilter_line(
         self,
         bpp: usize,
         data: &[u8],