WIP: commands: add req/res constructors

src/commands.rs

@@ -195,6 +195,12 @@ macro_rules! empty_command_request {
             }
         }
 
+        impl $name {
+            pub fn req() -> <Self as crate::commands::Command>::Request {
+                paste::paste! { [<$name Request>] }
+            }
+        }
+
         impl crate::commands::CommandRequest for paste::paste! { [<$name Request>] } {
             const COMMAND: &'static str = $command_name;
             const MIN_ARGS: u32 = 0;
@@ -228,6 +234,12 @@ macro_rules! empty_command_response {
             }
         }
 
+        impl $name {
+            pub fn res() -> <Self as crate::commands::Command>::Response {
+                paste::paste! { [<$name Response>] }
+            }
+        }
+
         impl crate::commands::CommandResponse for paste::paste! { [<$name Response>] } {
             fn parse(
                 _parts: crate::commands::ResponseAttributes<'_>,
@@ -254,6 +266,12 @@ macro_rules! single_item_command_request {
             }
         }
 
+        impl $name {
+            pub fn req(item: $item_type) -> <Self as crate::commands::Command>::Request {
+                <Self as crate::commands::Command>::Request::new(item)
+            }
+        }
+
         impl crate::commands::CommandRequest for paste::paste! { [<$name Request>] } {
             const COMMAND: &'static str = $command_name;
             const MIN_ARGS: u32 = 1;
@@ -299,6 +317,12 @@ macro_rules! single_optional_item_command_request {
             }
         }
 
+        impl $name {
+            pub fn req(item: Option<$item_type>) -> <Self as crate::commands::Command>::Request {
+                <Self as crate::commands::Command>::Request::new(item)
+            }
+        }
+
         impl crate::commands::CommandRequest for paste::paste! { [<$name Request>] } {
             const COMMAND: &'static str = $command_name;
             const MIN_ARGS: u32 = 0;
@@ -350,6 +374,12 @@ macro_rules! single_item_command_response {
             }
         }
 
+        impl $name {
+            pub fn res(item: $item_type) -> <Self as crate::commands::Command>::Response {
+                <Self as crate::commands::Command>::Response::new(item)
+            }
+        }
+
         impl crate::commands::CommandResponse for paste::paste! { [<$name Response>] } {
             fn parse(
                 parts: crate::commands::ResponseAttributes<'_>,
@@ -394,6 +424,12 @@ macro_rules! multi_item_command_response {
             }
         }
 
+        impl $name {
+            pub fn res(items: Vec<$item_type>) -> <Self as crate::commands::Command>::Response {
+                <Self as crate::commands::Command>::Response::new(items)
+            }
+        }
+
         impl crate::commands::CommandResponse for paste::paste! { [<$name Response>] } {
             fn parse(
                 parts: crate::commands::ResponseAttributes<'_>,