feat(css): add unary expression parsing

crates/biome_css_formatter/src/css/any/expression.rs

@@ -12,6 +12,7 @@ impl FormatRule<AnyCssExpression> for FormatAnyCssExpression {
             AnyCssExpression::CssCommaSeparatedValue(node) => node.format().fmt(f),
             AnyCssExpression::CssListOfComponentValuesExpression(node) => node.format().fmt(f),
             AnyCssExpression::CssParenthesizedExpression(node) => node.format().fmt(f),
+            AnyCssExpression::CssUnaryExpression(node) => node.format().fmt(f),
         }
     }
 }

crates/biome_css_formatter/src/css/auxiliary/mod.rs

@@ -116,6 +116,7 @@ pub(crate) mod syntax_component_without_multiplier;
 pub(crate) mod syntax_multiplier;
 pub(crate) mod syntax_type;
 pub(crate) mod type_function;
+pub(crate) mod unary_expression;
 pub(crate) mod unicode_codepoint;
 pub(crate) mod unicode_range;
 pub(crate) mod unicode_range_interval;

crates/biome_css_formatter/src/css/auxiliary/unary_expression.rs

@@ -0,0 +1,18 @@
+use crate::prelude::*;
+use biome_css_syntax::{CssUnaryExpression, CssUnaryExpressionFields};
+use biome_formatter::write;
+
+#[derive(Debug, Clone, Default)]
+pub(crate) struct FormatCssUnaryExpression;
+impl FormatNodeRule<CssUnaryExpression> for FormatCssUnaryExpression {
+    fn fmt_fields(&self, node: &CssUnaryExpression, f: &mut CssFormatter) -> FormatResult<()> {
+        let CssUnaryExpressionFields {
+            operator,
+            expression,
+        } = node.as_fields();
+        let operator = operator?;
+        let expression = expression?;
+
+        write!(f, [operator.format(), expression.format()])
+    }
+}

crates/biome_css_formatter/src/generated.rs

@@ -6225,6 +6225,44 @@ impl IntoFormat<CssFormatContext> for biome_css_syntax::CssTypeSelector {
         )
     }
 }
+impl FormatRule<biome_css_syntax::CssUnaryExpression>
+    for crate::css::auxiliary::unary_expression::FormatCssUnaryExpression
+{
+    type Context = CssFormatContext;
+    #[inline(always)]
+    fn fmt(
+        &self,
+        node: &biome_css_syntax::CssUnaryExpression,
+        f: &mut CssFormatter,
+    ) -> FormatResult<()> {
+        FormatNodeRule::<biome_css_syntax::CssUnaryExpression>::fmt(self, node, f)
+    }
+}
+impl AsFormat<CssFormatContext> for biome_css_syntax::CssUnaryExpression {
+    type Format<'a> = FormatRefWithRule<
+        'a,
+        biome_css_syntax::CssUnaryExpression,
+        crate::css::auxiliary::unary_expression::FormatCssUnaryExpression,
+    >;
+    fn format(&self) -> Self::Format<'_> {
+        FormatRefWithRule::new(
+            self,
+            crate::css::auxiliary::unary_expression::FormatCssUnaryExpression::default(),
+        )
+    }
+}
+impl IntoFormat<CssFormatContext> for biome_css_syntax::CssUnaryExpression {
+    type Format = FormatOwnedWithRule<
+        biome_css_syntax::CssUnaryExpression,
+        crate::css::auxiliary::unary_expression::FormatCssUnaryExpression,
+    >;
+    fn into_format(self) -> Self::Format {
+        FormatOwnedWithRule::new(
+            self,
+            crate::css::auxiliary::unary_expression::FormatCssUnaryExpression::default(),
+        )
+    }
+}
 impl FormatRule<biome_css_syntax::CssUnicodeCodepoint>
     for crate::css::auxiliary::unicode_codepoint::FormatCssUnicodeCodepoint
 {

crates/biome_css_formatter/tests/specs/css/scss/expression/qualified-names.scss.snap

@@ -1,8 +1,8 @@
 ---
 source: crates/biome_formatter_test/src/snapshot_builder.rs
-assertion_line: 212
 info: css/scss/expression/qualified-names.scss
 ---
+
 # Input
 
 ```scss

crates/biome_css_formatter/tests/specs/css/unary-precedence.css

@@ -0,0 +1,5 @@
+.unary-precedence{
+  width:calc(-1 +2);
+  width:calc(+var(--x)+1px);
+  width:calc(- var(--y)*2);
+}

crates/biome_css_formatter/tests/specs/css/unary-precedence.css.snap

@@ -0,0 +1,41 @@
+---
+source: crates/biome_formatter_test/src/snapshot_builder.rs
+assertion_line: 212
+info: css/unary-precedence.css
+---
+
+# Input
+
+```css
+.unary-precedence{
+  width:calc(-1 +2);
+  width:calc(+var(--x)+1px);
+  width:calc(- var(--y)*2);
+}
+
+```
+
+
+=============================
+
+# Outputs
+
+## Output 1
+
+-----
+Indent style: Tab
+Indent width: 2
+Line ending: LF
+Line width: 80
+Quote style: Double Quotes
+Trailing newline: true
+-----
+
+```css
+.unary-precedence {
+	width: calc(-1 +2);
+	width: calc(+var(--x) +1px);
+	width: calc(-var(--y) * 2);
+}
+
+```