gpui_macros: Extract border_style_methods macro (#14514)

This PR extracts a separate `border_style_methods` macro so that it can
be used independently from `style_helpers!`.

Release Notes:

- N/A

crates/gpui/src/styled.rs

@@ -5,8 +5,9 @@ use crate::{
     SharedString, StyleRefinement, WhiteSpace,
 };
 pub use gpui_macros::{
-    box_shadow_style_methods, cursor_style_methods, margin_style_methods, overflow_style_methods,
-    padding_style_methods, position_style_methods, visibility_style_methods,
+    border_style_methods, box_shadow_style_methods, cursor_style_methods, margin_style_methods,
+    overflow_style_methods, padding_style_methods, position_style_methods,
+    visibility_style_methods,
 };
 use taffy::style::{AlignContent, Display};
 
@@ -23,6 +24,7 @@ pub trait Styled: Sized {
     gpui_macros::position_style_methods!();
     gpui_macros::overflow_style_methods!();
     gpui_macros::cursor_style_methods!();
+    gpui_macros::border_style_methods!();
     gpui_macros::box_shadow_style_methods!();
 
     /// Sets the display type of the element to `block`.
@@ -303,16 +305,6 @@ pub trait Styled: Sized {
         self
     }
 
-    /// Sets the border color of the element.
-    fn border_color<C>(mut self, border_color: C) -> Self
-    where
-        C: Into<Hsla>,
-        Self: Sized,
-    {
-        self.style().border_color = Some(border_color.into());
-        self
-    }
-
     /// Get the text style that has been configured on this element.
     fn text_style(&mut self) -> &mut Option<TextStyleRefinement> {
         let style: &mut StyleRefinement = self.style();

crates/gpui_macros/src/gpui_macros.rs

@@ -70,6 +70,12 @@ pub fn cursor_style_methods(input: TokenStream) -> TokenStream {
     styles::cursor_style_methods(input)
 }
 
+/// Generates methods for border styles.
+#[proc_macro]
+pub fn border_style_methods(input: TokenStream) -> TokenStream {
+    styles::border_style_methods(input)
+}
+
 /// Generates methods for box shadow styles.
 #[proc_macro]
 pub fn box_shadow_style_methods(input: TokenStream) -> TokenStream {

crates/gpui_macros/src/styles.rs

@@ -317,6 +317,55 @@ pub fn cursor_style_methods(input: TokenStream) -> TokenStream {
     output.into()
 }
 
+pub fn border_style_methods(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as StyleableMacroInput);
+    let visibility = input.method_visibility;
+
+    let mut methods = Vec::new();
+
+    for border_style_prefix in border_prefixes() {
+        methods.push(generate_custom_value_setter(
+            visibility.clone(),
+            border_style_prefix.prefix,
+            quote! { AbsoluteLength },
+            &border_style_prefix.fields,
+            border_style_prefix.doc_string_prefix,
+        ));
+
+        for border_style_suffix in border_suffixes() {
+            methods.push(generate_predefined_setter(
+                visibility.clone(),
+                border_style_prefix.prefix,
+                border_style_suffix.suffix,
+                &border_style_prefix.fields,
+                &border_style_suffix.width_tokens,
+                false,
+                &format!(
+                    "{prefix}\n\n{suffix}",
+                    prefix = border_style_prefix.doc_string_prefix,
+                    suffix = border_style_suffix.doc_string_suffix,
+                ),
+            ));
+        }
+    }
+
+    let output = quote! {
+        /// Sets the border color of the element.
+        #visibility fn border_color<C>(mut self, border_color: C) -> Self
+        where
+            C: Into<Hsla>,
+            Self: Sized,
+        {
+            self.style().border_color = Some(border_color.into());
+            self
+        }
+
+        #(#methods)*
+    };
+
+    output.into()
+}
+
 pub fn box_shadow_style_methods(input: TokenStream) -> TokenStream {
     let input = parse_macro_input!(input as StyleableMacroInput);
     let visibility = input.method_visibility;
@@ -564,31 +613,6 @@ fn generate_methods() -> Vec<TokenStream2> {
         }
     }
 
-    for border_style_prefix in border_prefixes() {
-        methods.push(generate_custom_value_setter(
-            visibility.clone(),
-            border_style_prefix.prefix,
-            quote! { AbsoluteLength },
-            &border_style_prefix.fields,
-            border_style_prefix.doc_string_prefix,
-        ));
-
-        for border_style_suffix in border_suffixes() {
-            methods.push(generate_predefined_setter(
-                visibility.clone(),
-                border_style_prefix.prefix,
-                border_style_suffix.suffix,
-                &border_style_prefix.fields,
-                &border_style_suffix.width_tokens,
-                false,
-                &format!(
-                    "{prefix}\n\n{suffix}",
-                    prefix = border_style_prefix.doc_string_prefix,
-                    suffix = border_style_suffix.doc_string_suffix,
-                ),
-            ));
-        }
-    }
     methods
 }