Reducing hella boilerplate with these macros. Thanks Claude

waycast-macros/src/lib.rs

@@ -254,3 +254,166 @@ pub fn plugin(input: TokenStream) -> TokenStream {
     let config = parse_macro_input!(input as PluginConfig);
     config.generate().into()
 }
+
+/// LauncherListItem configuration parsed from the macro input
+struct LauncherEntryConfig {
+    id: Expr,
+    title: Expr,
+    description: Option<Expr>,
+    icon: Expr,
+    execute: Expr,
+}
+
+impl Parse for LauncherEntryConfig {
+    fn parse(input: ParseStream) -> Result<Self> {
+        let mut id = None;
+        let mut title = None;
+        let mut description = None;
+        let mut icon = None;
+        let mut execute = None;
+
+        // Parse comma-separated key: value pairs
+        while !input.is_empty() {
+            if input.peek(Token![,]) {
+                input.parse::<Token![,]>()?;
+            }
+            
+            if input.is_empty() {
+                break;
+            }
+
+            let key: Ident = input.parse()?;
+            input.parse::<Token![:]>()?;
+
+            match key.to_string().as_str() {
+                "id" => {
+                    let expr: Expr = input.parse()?;
+                    id = Some(expr);
+                }
+                "title" => {
+                    let expr: Expr = input.parse()?;
+                    title = Some(expr);
+                }
+                "description" => {
+                    let expr: Expr = input.parse()?;
+                    description = Some(expr);
+                }
+                "icon" => {
+                    let expr: Expr = input.parse()?;
+                    icon = Some(expr);
+                }
+                "execute" => {
+                    let expr: Expr = input.parse()?;
+                    execute = Some(expr);
+                }
+                _ => {
+                    let key_str = key.to_string();
+                    return Err(syn::Error::new_spanned(
+                        key,
+                        format!("Unknown launcher entry configuration key: {}", key_str),
+                    ));
+                }
+            }
+        }
+
+        // Validate required fields
+        let id = id.ok_or_else(|| {
+            syn::Error::new(input.span(), "LauncherListItem must have an 'id' field")
+        })?;
+        let title = title.ok_or_else(|| {
+            syn::Error::new(input.span(), "LauncherListItem must have a 'title' field")
+        })?;
+        let icon = icon.ok_or_else(|| {
+            syn::Error::new(input.span(), "LauncherListItem must have an 'icon' field")
+        })?;
+        let execute = execute.ok_or_else(|| {
+            syn::Error::new(input.span(), "LauncherListItem must have an 'execute' field")
+        })?;
+
+        Ok(LauncherEntryConfig {
+            id,
+            title,
+            description,
+            icon,
+            execute,
+        })
+    }
+}
+
+impl LauncherEntryConfig {
+    /// Generate the implementation of LauncherListItem trait methods
+    fn generate(&self) -> proc_macro2::TokenStream {
+        let id_expr = &self.id;
+        let title_expr = &self.title;
+        let icon_expr = &self.icon;
+        let execute_expr = &self.execute;
+
+        // Generate description method
+        let description_method = if let Some(ref desc_expr) = self.description {
+            quote! {
+                fn description(&self) -> Option<String> {
+                    #desc_expr
+                }
+            }
+        } else {
+            quote! {
+                fn description(&self) -> Option<String> {
+                    None
+                }
+            }
+        };
+
+        quote! {
+            fn id(&self) -> String {
+                #id_expr
+            }
+
+            fn title(&self) -> String {
+                #title_expr
+            }
+
+            #description_method
+
+            fn icon(&self) -> String {
+                #icon_expr
+            }
+
+            fn execute(&self) -> Result<(), waycast_core::LaunchError> {
+                #execute_expr
+            }
+
+            // Stub implementations to satisfy rust-analyzer
+            // These are only compiled when rust-analyzer is checking the code
+            #[cfg(rust_analyzer)]
+            fn id(&self) -> String { unimplemented!("Generated by launcher_entry! macro") }
+            #[cfg(rust_analyzer)]
+            fn title(&self) -> String { unimplemented!("Generated by launcher_entry! macro") }
+            #[cfg(rust_analyzer)]
+            fn description(&self) -> Option<String> { unimplemented!("Generated by launcher_entry! macro") }
+            #[cfg(rust_analyzer)]
+            fn icon(&self) -> String { unimplemented!("Generated by launcher_entry! macro") }
+            #[cfg(rust_analyzer)]
+            fn execute(&self) -> Result<(), waycast_core::LaunchError> { unimplemented!("Generated by launcher_entry! macro") }
+        }
+    }
+}
+
+/// The launcher_entry! proc macro
+/// 
+/// Usage inside impl LauncherListItem block:
+/// ```rust
+/// impl LauncherListItem for FileEntry {
+///     launcher_entry! {
+///         id: self.path.to_string_lossy().to_string(),
+///         title: self.path.file_name().unwrap().to_string_lossy().to_string(),
+///         description: Some(self.path.to_string_lossy().to_string()),
+///         icon: "text-x-generic".to_string(),
+///         execute: { println!("Opening file"); Ok(()) }
+///     }
+/// }
+/// ```
+#[proc_macro]
+pub fn launcher_entry(input: TokenStream) -> TokenStream {
+    let config = parse_macro_input!(input as LauncherEntryConfig);
+    config.generate().into()
+}

waycast-plugins/src/drun.rs

@@ -1,6 +1,6 @@
 use gio::{prelude::*, AppInfo, DesktopAppInfo, Icon};
 use waycast_core::{LaunchError, LauncherListItem, LauncherPlugin};
-use waycast_macros::plugin;
+use waycast_macros::{plugin, launcher_entry};
 
 #[derive(Debug)]
 pub struct DesktopEntry {
@@ -11,36 +11,17 @@ pub struct DesktopEntry {
 }
 
 impl LauncherListItem for DesktopEntry {
-    fn id(&self) -> String {
-        self.id.clone()
-    }
-
-    fn title(&self) -> String {
-        return self.name.to_owned();
-    }
-
-    fn description(&self) -> Option<String> {
+    launcher_entry! {
+        id: self.id.clone(),
+        title: self.name.to_owned(),
+        description: {
             if let Some(glib_string) = &self.description {
-            return Some(glib_string.to_string().to_owned());
+                Some(glib_string.to_string().to_owned())
+            } else {
+                None
             }
-
-        return None;
-    }
-
-    fn execute(&self) -> Result<(), LaunchError> {
-        if let Some(di) = DesktopAppInfo::new(&self.id) {
-            let app: AppInfo = di.upcast();
-            let ctx = gio::AppLaunchContext::new();
-            if app.launch(&[], Some(&ctx)).ok().is_none() {
-                return Err(LaunchError::CouldNotLaunch("App failed to launch".into()));
-            };
-            return Ok(());
-        }
-
-        return Err(LaunchError::CouldNotLaunch("Invalid .desktop entry".into()));
-    }
-
-    fn icon(&self) -> String {
+        },
+        icon: {
             if let Some(icon) = &self.icon {
                 if let Ok(ti) = icon.clone().downcast::<gio::ThemedIcon>() {
                     // ThemedIcon may have multiple names, we take the first
@@ -55,8 +36,20 @@ impl LauncherListItem for DesktopEntry {
                     }
                 }
             }
-
-        return "application-x-executable".into();
+            "application-x-executable".into()
+        },
+        execute: {
+            if let Some(di) = DesktopAppInfo::new(&self.id) {
+                let app: AppInfo = di.upcast();
+                let ctx = gio::AppLaunchContext::new();
+                if app.launch(&[], Some(&ctx)).ok().is_none() {
+                    return Err(LaunchError::CouldNotLaunch("App failed to launch".into()));
+                };
+                Ok(())
+            } else {
+                Err(LaunchError::CouldNotLaunch("Invalid .desktop entry".into()))
+            }
+        }
     }
 }
 

waycast-plugins/src/file_search.rs

@@ -7,7 +7,7 @@ use std::sync::Arc;
 use std::time::Duration;
 use tokio::sync::Mutex;
 use walkdir::{DirEntry, WalkDir};
-use waycast_macros::plugin;
+use waycast_macros::{plugin, launcher_entry};
 
 use waycast_core::{LaunchError, LauncherListItem, LauncherPlugin};
 
@@ -25,18 +25,21 @@ impl FileEntry {
 }
 
 impl LauncherListItem for FileEntry {
-    fn id(&self) -> String {
-        self.path.to_string_lossy().to_string()
+    launcher_entry! {
+        id: self.path.to_string_lossy().to_string(),
+        title: String::from(self.path.file_name().unwrap().to_string_lossy()),
+        description: Some(self.path.to_string_lossy().to_string()),
+        icon: {
+            let (content_type, _) = gio::content_type_guess(Some(&self.path), None);
+            let icon = gio::content_type_get_icon(&content_type);
+            if let Some(themed_icon) = icon.downcast_ref::<gio::ThemedIcon>() {
+                if let Some(icon_name) = themed_icon.names().first() {
+                    return icon_name.to_string();
                 }
-
-    fn title(&self) -> String {
-        return String::from(self.path.file_name().unwrap().to_string_lossy());
             }
-    fn description(&self) -> Option<String> {
-        Some(self.path.to_string_lossy().to_string())
-    }
-
-    fn execute(&self) -> Result<(), LaunchError> {
+            String::from("text-x-generic")
+        },
+        execute: {
             println!("Executing: {}", self.path.display());
 
             // Use xdg-open directly since it works properly with music files
@@ -66,19 +69,6 @@ impl LauncherListItem for FileEntry {
                 }
             }
         }
-
-    fn icon(&self) -> String {
-        let (content_type, _) = gio::content_type_guess(Some(&self.path), None);
-
-        let icon = gio::content_type_get_icon(&content_type);
-
-        if let Some(themed_icon) = icon.downcast_ref::<gio::ThemedIcon>() {
-            if let Some(icon_name) = themed_icon.names().first() {
-                return icon_name.to_string();
-            }
-        }
-
-        String::from("text-x-generic")
     }
 }
 

waycast-plugins/src/lib.rs

@@ -1,5 +1,5 @@
 pub mod drun;
 pub mod file_search;
 
-// Re-export the macro for external use
-pub use waycast_macros::plugin;
+// Re-export the macros for external use
+pub use waycast_macros::{plugin, launcher_entry};