Make ColorSpec constructor and getters const

src/lib.rs

@@ -1590,6 +1590,13 @@ pub struct ColorSpec {
 
 impl Default for ColorSpec {
     fn default() -> ColorSpec {
+        ColorSpec::new()
+    }
+}
+
+impl ColorSpec {
+    /// Create a new color specification that has no colors or styles.
+    pub const fn new() -> ColorSpec {
         ColorSpec {
             fg_color: None,
             bg_color: None,
@@ -1601,15 +1608,9 @@ impl Default for ColorSpec {
             reset: true,
         }
     }
-}
-
-impl ColorSpec {
-    /// Create a new color specification that has no colors or styles.
-    pub fn new() -> ColorSpec {
-        ColorSpec::default()
-    }
 
     /// Get the foreground color.
+    // TODO: Make this const when MSVR is 1.48
     pub fn fg(&self) -> Option<&Color> {
         self.fg_color.as_ref()
     }
@@ -1621,6 +1622,7 @@ impl ColorSpec {
     }
 
     /// Get the background color.
+    // TODO: Make this const when MSVR is 1.48
     pub fn bg(&self) -> Option<&Color> {
         self.bg_color.as_ref()
     }
@@ -1634,7 +1636,7 @@ impl ColorSpec {
     /// Get whether this is bold or not.
     ///
     /// Note that the bold setting has no effect in a Windows console.
-    pub fn bold(&self) -> bool {
+    pub const fn bold(&self) -> bool {
         self.bold
     }
 
@@ -1649,7 +1651,7 @@ impl ColorSpec {
     /// Get whether this is dimmed or not.
     ///
     /// Note that the dimmed setting has no effect in a Windows console.
-    pub fn dimmed(&self) -> bool {
+    pub const fn dimmed(&self) -> bool {
         self.dimmed
     }
 
@@ -1664,7 +1666,7 @@ impl ColorSpec {
     /// Get whether this is italic or not.
     ///
     /// Note that the italic setting has no effect in a Windows console.
-    pub fn italic(&self) -> bool {
+    pub const fn italic(&self) -> bool {
         self.italic
     }
 
@@ -1679,7 +1681,7 @@ impl ColorSpec {
     /// Get whether this is underline or not.
     ///
     /// Note that the underline setting has no effect in a Windows console.
-    pub fn underline(&self) -> bool {
+    pub const fn underline(&self) -> bool {
         self.underline
     }
 
@@ -1698,7 +1700,7 @@ impl ColorSpec {
     /// settings are applied.
     ///
     /// Note that the reset setting has no effect in a Windows console.
-    pub fn reset(&self) -> bool {
+    pub const fn reset(&self) -> bool {
         self.reset
     }
 
@@ -1726,7 +1728,7 @@ impl ColorSpec {
     ///
     /// On Windows systems, this will output the ANSI escape sequence
     /// that will print a brighter version of the color specified.
-    pub fn intense(&self) -> bool {
+    pub const fn intense(&self) -> bool {
         self.intense
     }