alias sass:color builtin functions

src/builtin/functions/color/hsl.rs

@@ -205,15 +205,15 @@ fn inner_hsl(name: &'static str, mut args: CallArgs, parser: &mut Parser<'_>) ->
     }
 }
 
-fn hsl(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn hsl(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     inner_hsl("hsl", args, parser)
 }
 
-fn hsla(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn hsla(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     inner_hsl("hsla", args, parser)
 }
 
-fn hue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn hue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.hue(), Unit::Deg, true)),
@@ -225,7 +225,7 @@ fn hue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     }
 }
 
-fn saturation(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn saturation(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.saturation(), Unit::Percent, true)),
@@ -237,7 +237,7 @@ fn saturation(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value>
     }
 }
 
-fn lightness(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn lightness(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.lightness(), Unit::Percent, true)),
@@ -249,7 +249,7 @@ fn lightness(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     }
 }
 
-fn adjust_hue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn adjust_hue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(2)?;
     let color = match args.get_err(0, "color")? {
         Value::Color(c) => c,
@@ -405,7 +405,7 @@ fn desaturate(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value>
     Ok(Value::Color(Box::new(color.desaturate(amount))))
 }
 
-fn grayscale(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn grayscale(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     let color = match args.get_err(0, "color")? {
         Value::Color(c) => c,
@@ -426,7 +426,7 @@ fn grayscale(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     Ok(Value::Color(Box::new(color.desaturate(Number::one()))))
 }
 
-fn complement(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn complement(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     let color = match args.get_err(0, "color")? {
         Value::Color(c) => c,
@@ -441,7 +441,7 @@ fn complement(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value>
     Ok(Value::Color(Box::new(color.complement())))
 }
 
-fn invert(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn invert(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(2)?;
     let weight = match args.default_arg(
         1,

src/builtin/functions/color/mod.rs

@@ -1,9 +1,9 @@
 use super::{Builtin, GlobalFunctionMap};
 
-mod hsl;
-mod opacity;
-mod other;
-mod rgb;
+pub mod hsl;
+pub mod opacity;
+pub mod other;
+pub mod rgb;
 
 pub(crate) fn declare(f: &mut GlobalFunctionMap) {
     hsl::declare(f);

src/builtin/functions/color/opacity.rs

@@ -5,7 +5,7 @@ use crate::{
     value::Value,
 };
 
-fn alpha(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn alpha(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.alpha(), Unit::None, true)),
@@ -17,7 +17,7 @@ fn alpha(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     }
 }
 
-fn opacity(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn opacity(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.alpha(), Unit::None, true)),
@@ -33,6 +33,7 @@ fn opacity(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     }
 }
 
+// todo: unify `opacify` and `fade_in`
 fn opacify(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(2)?;
     let color = match args.get_err(0, "color")? {
@@ -83,6 +84,7 @@ fn fade_in(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     Ok(Value::Color(Box::new(color.fade_in(amount))))
 }
 
+// todo: unify with `fade_out`
 fn transparentize(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(2)?;
     let color = match args.get_err(0, "color")? {

src/builtin/functions/color/other.rs

@@ -46,7 +46,7 @@ macro_rules! opt_hsl {
     };
 }
 
-fn change_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn change_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     if args.positional_arg(1).is_some() {
         return Err((
             "Only one positional argument is allowed. All other arguments must be passed by name.",
@@ -113,7 +113,7 @@ fn change_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value
     }))
 }
 
-fn adjust_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn adjust_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     let color = match args.get_err(0, "color")? {
         Value::Color(c) => c,
         v => {
@@ -175,8 +175,8 @@ fn adjust_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value
 
 #[allow(clippy::cognitive_complexity)]
 // todo: refactor into rgb and hsl?
-fn scale_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
-    fn scale(val: Number, by: Number, max: Number) -> Number {
+pub(crate) fn scale_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+    pub(crate) fn scale(val: Number, by: Number, max: Number) -> Number {
         if by.is_zero() {
             return val;
         }
@@ -288,7 +288,7 @@ fn scale_color(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value>
     }))
 }
 
-fn ie_hex_str(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn ie_hex_str(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     let color = match args.get_err(0, "color")? {
         Value::Color(c) => c,

src/builtin/functions/color/rgb.rs

@@ -336,15 +336,15 @@ fn inner_rgb(name: &'static str, mut args: CallArgs, parser: &mut Parser<'_>) ->
     }
 }
 
-fn rgb(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn rgb(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     inner_rgb("rgb", args, parser)
 }
 
-fn rgba(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn rgba(args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     inner_rgb("rgba", args, parser)
 }
 
-fn red(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn red(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.red(), Unit::None, true)),
@@ -356,7 +356,7 @@ fn red(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     }
 }
 
-fn green(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn green(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.green(), Unit::None, true)),
@@ -368,7 +368,7 @@ fn green(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     }
 }
 
-fn blue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn blue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(1)?;
     match args.get_err(0, "color")? {
         Value::Color(c) => Ok(Value::Dimension(c.blue(), Unit::None, true)),
@@ -380,7 +380,7 @@ fn blue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     }
 }
 
-fn mix(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+pub(crate) fn mix(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
     args.max_args(3)?;
     let color1 = match args.get_err(0, "color1")? {
         Value::Color(c) => c,

src/builtin/mod.rs

@@ -1,4 +1,6 @@
 mod functions;
 pub(crate) mod modules;
 
-pub(crate) use functions::{list, map, math, meta, selector, string, Builtin, GLOBAL_FUNCTIONS};
+pub(crate) use functions::{
+    color, list, map, math, meta, selector, string, Builtin, GLOBAL_FUNCTIONS,
+};

src/builtin/modules/color.rs

@@ -1,5 +1,38 @@
 use crate::{
-    args::CallArgs, builtin::modules::Module, error::SassResult, parse::Parser, value::Value,
+    args::CallArgs,
+    builtin::{
+        color::{
+            hsl::{complement, grayscale, hue, invert, lightness, saturation},
+            opacity::alpha,
+            other::{adjust_color, change_color, ie_hex_str, scale_color},
+            rgb::{blue, green, mix, red},
+        },
+        modules::Module,
+    },
+    error::SassResult,
+    parse::Parser,
+    value::Value,
 };
 
-pub(crate) fn declare(_f: &mut Module) {}
+fn adjust_hue(mut args: CallArgs, parser: &mut Parser<'_>) -> SassResult<Value> {
+    args.max_args(2)?;
+    todo!()
+}
+
+pub(crate) fn declare(f: &mut Module) {
+    f.insert_builtin("adjust", adjust_color);
+    f.insert_builtin("alpha", alpha);
+    f.insert_builtin("blue", blue);
+    f.insert_builtin("change", change_color);
+    f.insert_builtin("complement", complement);
+    f.insert_builtin("grayscale", grayscale);
+    f.insert_builtin("green", green);
+    f.insert_builtin("hue", hue);
+    f.insert_builtin("ie-hex-str", ie_hex_str);
+    f.insert_builtin("invert", invert);
+    f.insert_builtin("lightness", lightness);
+    f.insert_builtin("mix", mix);
+    f.insert_builtin("red", red);
+    f.insert_builtin("saturation", saturation);
+    f.insert_builtin("scale", scale_color);
+}