Mark various constructors const

color/lib.rs

@@ -572,7 +572,7 @@ pub struct Hsl {
 
 impl Hsl {
     /// Construct a new HSL color from it's components.
-    pub fn new(
+    pub const fn new(
         hue: Option<f32>,
         saturation: Option<f32>,
         lightness: Option<f32>,
@@ -619,7 +619,7 @@ pub struct Hwb {
 
 impl Hwb {
     /// Construct a new HWB color from it's components.
-    pub fn new(
+    pub const fn new(
         hue: Option<f32>,
         whiteness: Option<f32>,
         blackness: Option<f32>,
@@ -685,7 +685,7 @@ macro_rules! impl_lab_like {
     ($cls:ident, $fname:literal) => {
         impl $cls {
             /// Construct a new Lab color format with lightness, a, b and alpha components.
-            pub fn new(
+            pub const fn new(
                 lightness: Option<f32>,
                 a: Option<f32>,
                 b: Option<f32>,
@@ -757,7 +757,7 @@ macro_rules! impl_lch_like {
     ($cls:ident, $fname:literal) => {
         impl $cls {
             /// Construct a new color with lightness, chroma and hue components.
-            pub fn new(
+            pub const fn new(
                 lightness: Option<f32>,
                 chroma: Option<f32>,
                 hue: Option<f32>,
@@ -814,7 +814,7 @@ pub struct ColorFunction {
 impl ColorFunction {
     /// Construct a new color function definition with the given color space and
     /// color components.
-    pub fn new(
+    pub const fn new(
         color_space: PredefinedColorSpace,
         c1: Option<f32>,
         c2: Option<f32>,

src/parser.rs

@@ -116,13 +116,13 @@ impl<'i, T> From<BasicParseError<'i>> for ParseError<'i, T> {
 impl SourceLocation {
     /// Create a new BasicParseError at this location for an unexpected token
     #[inline]
-    pub fn new_basic_unexpected_token_error(self, token: Token<'_>) -> BasicParseError<'_> {
+    pub const fn new_basic_unexpected_token_error(self, token: Token<'_>) -> BasicParseError<'_> {
         self.new_basic_error(BasicParseErrorKind::UnexpectedToken(token))
     }
 
     /// Create a new BasicParseError at this location
     #[inline]
-    pub fn new_basic_error(self, kind: BasicParseErrorKind<'_>) -> BasicParseError<'_> {
+    pub const fn new_basic_error(self, kind: BasicParseErrorKind<'_>) -> BasicParseError<'_> {
         BasicParseError {
             kind,
             location: self,
@@ -131,13 +131,13 @@ impl SourceLocation {
 
     /// Create a new ParseError at this location for an unexpected token
     #[inline]
-    pub fn new_unexpected_token_error<E>(self, token: Token<'_>) -> ParseError<'_, E> {
+    pub const fn new_unexpected_token_error<E>(self, token: Token<'_>) -> ParseError<'_, E> {
         self.new_error(BasicParseErrorKind::UnexpectedToken(token))
     }
 
     /// Create a new basic ParseError at the current location
     #[inline]
-    pub fn new_error<E>(self, kind: BasicParseErrorKind<'_>) -> ParseError<'_, E> {
+    pub const fn new_error<E>(self, kind: BasicParseErrorKind<'_>) -> ParseError<'_, E> {
         ParseError {
             kind: ParseErrorKind::Basic(kind),
             location: self,
@@ -240,7 +240,7 @@ struct CachedToken<'i> {
 
 impl<'i> ParserInput<'i> {
     /// Create a new input for a parser.
-    pub fn new(input: &'i str) -> ParserInput<'i> {
+    pub const fn new(input: &'i str) -> ParserInput<'i> {
         ParserInput {
             tokenizer: Tokenizer::new(input),
             cached_token: None,
@@ -383,7 +383,7 @@ macro_rules! expect {
 impl<'i: 't, 't> Parser<'i, 't> {
     /// Create a new parser
     #[inline]
-    pub fn new(input: &'t mut ParserInput<'i>) -> Parser<'i, 't> {
+    pub const fn new(input: &'t mut ParserInput<'i>) -> Parser<'i, 't> {
         Parser {
             input,
             at_start_of: None,
@@ -435,7 +435,7 @@ impl<'i: 't, 't> Parser<'i, 't> {
 
     /// The current line number and column number.
     #[inline]
-    pub fn current_source_location(&self) -> SourceLocation {
+    pub const fn current_source_location(&self) -> SourceLocation {
         self.input.tokenizer.current_source_location()
     }
 
@@ -459,13 +459,13 @@ impl<'i: 't, 't> Parser<'i, 't> {
 
     /// Create a new BasicParseError at the current location
     #[inline]
-    pub fn new_basic_error(&self, kind: BasicParseErrorKind<'i>) -> BasicParseError<'i> {
+    pub const fn new_basic_error(&self, kind: BasicParseErrorKind<'i>) -> BasicParseError<'i> {
         self.current_source_location().new_basic_error(kind)
     }
 
     /// Create a new basic ParseError at the current location
     #[inline]
-    pub fn new_error<E>(&self, kind: BasicParseErrorKind<'i>) -> ParseError<'i, E> {
+    pub const fn new_error<E>(&self, kind: BasicParseErrorKind<'i>) -> ParseError<'i, E> {
         self.current_source_location().new_error(kind)
     }
 
@@ -477,13 +477,13 @@ impl<'i: 't, 't> Parser<'i, 't> {
 
     /// Create a new unexpected token BasicParseError at the current location
     #[inline]
-    pub fn new_basic_unexpected_token_error(&self, token: Token<'i>) -> BasicParseError<'i> {
+    pub const fn new_basic_unexpected_token_error(&self, token: Token<'i>) -> BasicParseError<'i> {
         self.new_basic_error(BasicParseErrorKind::UnexpectedToken(token))
     }
 
     /// Create a new unexpected token ParseError at the current location
     #[inline]
-    pub fn new_unexpected_token_error<E>(&self, token: Token<'i>) -> ParseError<'i, E> {
+    pub const fn new_unexpected_token_error<E>(&self, token: Token<'i>) -> ParseError<'i, E> {
         self.new_error(BasicParseErrorKind::UnexpectedToken(token))
     }
 

src/rules_and_declarations.rs

@@ -232,7 +232,7 @@ impl<'i, 't, 'a, P, I, E> RuleBodyParser<'i, 't, 'a, P, I, E> {
     /// The return type for finished declarations and at-rules also needs to be the same,
     /// since `<DeclarationListParser as Iterator>::next` can return either.
     /// It could be a custom enum.
-    pub fn new(input: &'a mut Parser<'i, 't>, parser: &'a mut P) -> Self {
+    pub const fn new(input: &'a mut Parser<'i, 't>, parser: &'a mut P) -> Self {
         Self {
             input,
             parser,
@@ -340,7 +340,7 @@ where
     ///
     /// The return type for finished qualified rules and at-rules also needs to be the same,
     /// since `<RuleListParser as Iterator>::next` can return either. It could be a custom enum.
-    pub fn new(input: &'a mut Parser<'i, 't>, parser: &'a mut P) -> Self {
+    pub const fn new(input: &'a mut Parser<'i, 't>, parser: &'a mut P) -> Self {
         Self {
             input,
             parser,

src/serializer.rs

@@ -306,7 +306,7 @@ where
     W: fmt::Write,
 {
     /// Wrap a text writer to create a `CssStringWriter`.
-    pub fn new(inner: &'a mut W) -> CssStringWriter<'a, W> {
+    pub const fn new(inner: &'a mut W) -> CssStringWriter<'a, W> {
         CssStringWriter { inner }
     }
 }

src/tokenizer.rs

@@ -229,7 +229,7 @@ enum SeenStatus {
 
 impl<'a> Tokenizer<'a> {
     #[inline]
-    pub fn new(input: &'a str) -> Self {
+    pub const fn new(input: &'a str) -> Self {
         Tokenizer {
             input,
             position: 0,
@@ -274,7 +274,7 @@ impl<'a> Tokenizer<'a> {
     }
 
     #[inline]
-    pub fn current_source_location(&self) -> SourceLocation {
+    pub const fn current_source_location(&self) -> SourceLocation {
         SourceLocation {
             line: self.current_line_number,
             column: (self.position - self.current_line_start_position + 1) as u32,