refactor(renderer): Make functions const

Author: Muscraft

Diff for: src/renderer/mod.rs

@@ -24,16 +24,16 @@ impl Renderer {
     }
 
     /// No terminal styling
-    pub fn plain() -> Self {
+    pub const fn plain() -> Self {
         Self {
             anonymized_line_numbers: false,
             margin: None,
-            stylesheet: StyleSheet::default(),
+            stylesheet: StyleSheet::const_default(),
         }
     }
 
     /// Default terminal styling
-    pub fn styled() -> Self {
+    pub const fn styled() -> Self {
         Self {
             anonymized_line_numbers: false,
             margin: None,
@@ -50,52 +50,52 @@ impl Renderer {
         }
     }
 
-    pub fn anonymized_line_numbers(mut self, anonymized_line_numbers: bool) -> Self {
+    pub const fn anonymized_line_numbers(mut self, anonymized_line_numbers: bool) -> Self {
         self.anonymized_line_numbers = anonymized_line_numbers;
         self
     }
 
-    pub fn margin(mut self, margin: Option<Margin>) -> Self {
+    pub const fn margin(mut self, margin: Option<Margin>) -> Self {
         self.margin = margin;
         self
     }
 
-    pub fn error(mut self, style: Style) -> Self {
+    pub const fn error(mut self, style: Style) -> Self {
         self.stylesheet.error = style;
         self
     }
 
-    pub fn warning(mut self, style: Style) -> Self {
+    pub const fn warning(mut self, style: Style) -> Self {
         self.stylesheet.warning = style;
         self
     }
 
-    pub fn info(mut self, style: Style) -> Self {
+    pub const fn info(mut self, style: Style) -> Self {
         self.stylesheet.info = style;
         self
     }
 
-    pub fn note(mut self, style: Style) -> Self {
+    pub const fn note(mut self, style: Style) -> Self {
         self.stylesheet.note = style;
         self
     }
 
-    pub fn help(mut self, style: Style) -> Self {
+    pub const fn help(mut self, style: Style) -> Self {
         self.stylesheet.help = style;
         self
     }
 
-    pub fn line_no(mut self, style: Style) -> Self {
+    pub const fn line_no(mut self, style: Style) -> Self {
         self.stylesheet.line_no = style;
         self
     }
 
-    pub fn emphasis(mut self, style: Style) -> Self {
+    pub const fn emphasis(mut self, style: Style) -> Self {
         self.stylesheet.emphasis = style;
         self
     }
 
-    pub fn none(mut self, style: Style) -> Self {
+    pub const fn none(mut self, style: Style) -> Self {
         self.stylesheet.none = style;
         self
     }