Add some macros (#8)

Cargo.toml

@@ -1,7 +1,7 @@
 workspace = { members = ["procs"] }
 [package]
 name = "statecs"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

src/tuple_proc.rs

@@ -21,41 +21,83 @@ macro_rules! cascade {
     };
 }
 
+#[macro_export]
+macro_rules! cascade_fn {
+    ($expr:expr) => {
+        |x| cascade!(x => $expr)
+    };
+}
+
 #[macro_export]
 macro_rules! cascade_option {
     ($val:expr => $expr:expr) => {
         $expr.into_tuple_processor().cascade_option($val)
     };
 }
 
+#[macro_export]
+macro_rules! cascade_option_fn {
+    ($expr:expr) => {
+        |x| cascade_option!(x => $expr)
+    };
+}
+
 #[macro_export]
 macro_rules! cascade_result {
     ($val:expr => $expr:expr) => {
         $expr.into_tuple_processor().cascade_result($val)
     };
 }
 
+#[macro_export]
+macro_rules! cascade_result_fn {
+    ($expr:expr) => {
+        |x| cascade_result!(x => $expr)
+    };
+}
+
 #[macro_export]
 macro_rules! cascade_async {
     ($val:expr => $expr:expr) => {
         $expr.into_tuple_processor().cascade_fut($val)
     };
 }
 
+#[macro_export]
+macro_rules! cascade_async_fn {
+    ($expr:expr) => {
+        |x| cascade_async!(x => $expr)
+    };
+}
+
 #[macro_export]
 macro_rules! cascade_option_async {
     ($val:expr => $expr:expr) => {
         $expr.into_tuple_processor().cascade_option_fut($val)
     };
 }
 
+#[macro_export]
+macro_rules! cascade_option_async_fn {
+    ($expr:expr) => {
+        |x| cascade_option_async!(x => $expr)
+    };
+}
+
 #[macro_export]
 macro_rules! cascade_result_async {
     ($val:expr => $expr:expr) => {
         $expr.into_tuple_processor().cascade_result_fut($val)
     };
 }
 
+#[macro_export]
+macro_rules! cascade_result_async_fn {
+    ($expr:expr) => {
+        |x| cascade_result_async!(x => $expr)
+    };
+}
+
 #[cfg(test)]
 mod tests {
     use crate::*;