use macro rule for default implementation of pattern

Cargo.lock

@@ -920,6 +920,14 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "pattern_derive"
+version = "0.1.0"
+dependencies = [
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "peeking_take_while"
 version = "0.1.2"
@@ -1096,6 +1104,7 @@ dependencies = [
  "bluer",
  "clap",
  "futures",
+ "pattern_derive",
  "rand",
  "rodio",
  "serde",

Cargo.toml

@@ -12,7 +12,8 @@ futures = "0.3.19"
 rand = "0.8.5"
 rodio = "0.15.0"
 clap = { version = "3.1.6", features = ["derive"] }
+pattern_derive = { path = "pattern_derive" }
 
 serde_derive = "1.0.136"
 serde = "1.0.136"
-serde_yaml = "0.8"
+serde_yaml = "0.8"

src/main.rs

@@ -6,6 +6,7 @@ mod patterns;
 mod runner;
 mod spectacle;
 
+use pattern_derive;
 use crate::args::Cli;
 use crate::audio::play_sound;
 use crate::config::{load_from_file, Config};

src/patterns.rs

@@ -49,8 +49,34 @@ pub(crate) enum Patterns<const N: usize> {
 pub trait Pattern: Iterator {
     type Strip;
 
-    fn init(&mut self) -> Option<Self::Strip>;
-    fn is_last_iteration(&self) -> bool;
+    fn init(&mut self) -> Option<Self::Strip> {
+        None
+    }
+    fn is_last_iteration(&self) -> bool ;
+}
+
+#[macro_export]
+macro_rules! impl_pattern_none {
+    ($name:ty, $generic: tt) => {
+           type Strip = Strip<N>;
+
+            fn init(&mut self) -> Option<Self::Strip> {
+                None
+            }
+
+            fn is_last_iteration(&self) -> bool {
+                match self.max_iteration {
+                    None => false,
+                    Some(max_iter) => {
+                        if self.current_iteration >= max_iter {
+                            true
+                        } else {
+                            false
+                        }
+                    }
+                }
+            }
+        }
 }
 
 impl<const N: usize> Iterator for Patterns<N> {

src/patterns/blink.rs

@@ -1,6 +1,6 @@
 use crate::patterns::fade::Fade;
 use crate::patterns::Pattern;
-use crate::Strip;
+use crate::{impl_pattern_none, Strip};
 use serde::{Deserialize, Serialize};
 
 /// # Blink
@@ -15,24 +15,7 @@ pub struct Blink<const N: usize> {
 }
 
 impl<const N: usize> Pattern for Blink<N> {
-    type Strip = Strip<N>;
-
-    fn init(&mut self) -> Option<Self::Strip> {
-        None
-    }
-
-    fn is_last_iteration(&self) -> bool {
-        match self.max_iteration {
-            None => false,
-            Some(max_iter) => {
-                if self.current_iteration >= max_iter {
-                    true
-                } else {
-                    false
-                }
-            }
-        }
-    }
+    impl_pattern_none!(FadeRandom, N);
 }
 
 impl<const N: usize> Iterator for Blink<N> {

src/patterns/fade_random.rs

@@ -1,6 +1,6 @@
 use crate::patterns::fade::Fade;
 use crate::patterns::Pattern;
-use crate::Strip;
+use crate::{impl_pattern_none, Strip};
 use serde::{Deserialize, Serialize};
 
 /// # FadeRandom
@@ -16,25 +16,25 @@ pub struct FadeRandom<const N: usize> {
 }
 
 impl<const N: usize> Pattern for FadeRandom<N> {
-    type Strip = Strip<N>;
-
-    fn init(&mut self) -> Option<Self::Strip> {
-        None
-    }
-
-    fn is_last_iteration(&self) -> bool {
-        match self.max_iteration {
-            None => false,
-            Some(max_iter) => {
-                if self.current_iteration >= max_iter {
-                    true
-                } else {
-                    false
-                }
-            }
-        }
-    }
+    impl_pattern_none!(FadeRandom, N);
 }
+//
+// impl<const N: usize> Pattern for FadeRandom<N> {
+//     type Strip = Strip<N>;
+//
+//     fn is_last_iteration(&self) -> bool {
+//         match self.max_iteration {
+//             None => false,
+//             Some(max_iter) => {
+//                 if self.current_iteration >= max_iter {
+//                     true
+//                 } else {
+//                     false
+//                 }
+//             }
+//         }
+//     }
+// }
 
 impl<const N: usize> Iterator for FadeRandom<N> {
     type Item = Strip<N>;

src/patterns/fade_unstable.rs

@@ -18,10 +18,6 @@ pub struct FadeUnstable<const N: usize> {
 impl<const N: usize> Pattern for FadeUnstable<N> {
     type Strip = Strip<N>;
 
-    fn init(&mut self) -> Option<Self::Strip> {
-        None
-    }
-
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
             None => false,

src/patterns/fill_random.rs

@@ -1,5 +1,5 @@
 use crate::patterns::{Pattern, PixelColor};
-use crate::Strip;
+use crate::{impl_pattern_none, Strip};
 use serde::{Deserialize, Serialize};
 
 /// # FillRandom
@@ -15,24 +15,7 @@ pub struct FillRandom<const N: usize> {
 }
 
 impl<const N: usize> Pattern for FillRandom<N> {
-    type Strip = Strip<N>;
-
-    fn init(&mut self) -> Option<Self::Strip> {
-        None
-    }
-
-    fn is_last_iteration(&self) -> bool {
-        match self.max_iteration {
-            None => false,
-            Some(max_iter) => {
-                if self.current_iteration >= max_iter {
-                    true
-                } else {
-                    false
-                }
-            }
-        }
-    }
+    impl_pattern_none!(FadeRandom, N);
 }
 
 impl<const N: usize> Iterator for FillRandom<N> {

src/patterns/fill_unstable.rs

@@ -1,5 +1,5 @@
 use crate::patterns::{Pattern, PixelColor};
-use crate::Strip;
+use crate::{impl_pattern_none, Strip};
 use serde::{Deserialize, Serialize};
 
 /// # FillUnstable
@@ -15,24 +15,7 @@ pub struct FillUnstable<const N: usize> {
 }
 
 impl<const N: usize> Pattern for FillUnstable<N> {
-    type Strip = Strip<N>;
-
-    fn init(&mut self) -> Option<Self::Strip> {
-        None
-    }
-
-    fn is_last_iteration(&self) -> bool {
-        match self.max_iteration {
-            None => false,
-            Some(max_iter) => {
-                if self.current_iteration >= max_iter {
-                    true
-                } else {
-                    false
-                }
-            }
-        }
-    }
+    impl_pattern_none!(FadeRandom, N);
 }
 
 impl<const N: usize> Iterator for FillUnstable<N> {

src/patterns/rainbow.rs

@@ -1,5 +1,5 @@
 use crate::patterns::{Pattern, PixelColor};
-use crate::Strip;
+use crate::{impl_pattern_none, Strip};
 use serde::{Deserialize, Serialize};
 
 /// # Rainbow pattern
@@ -21,24 +21,7 @@ pub struct Rainbow<const N: usize> {
 }
 
 impl<const N: usize> Pattern for Rainbow<N> {
-    type Strip = Strip<N>;
-
-    fn init(&mut self) -> Option<Self::Strip> {
-        None
-    }
-
-    fn is_last_iteration(&self) -> bool {
-        match self.max_iteration {
-            None => false,
-            Some(max_iter) => {
-                if self.current_iteration >= max_iter {
-                    true
-                } else {
-                    false
-                }
-            }
-        }
-    }
+    impl_pattern_none!(FadeRandom, N);
 }
 
 impl<const N: usize> Iterator for Rainbow<N> {

src/patterns/ring.rs

@@ -20,7 +20,7 @@ impl<const N: usize> Pattern for Ring<N> {
 
     fn init(&mut self) -> Option<Self::Strip> {
         None
-    }
+    } //FIXME
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {

src/patterns/ring_scanner.rs

@@ -20,7 +20,7 @@ impl<const N: usize> Pattern for RingScanner<N> {
 
     fn init(&mut self) -> Option<Self::Strip> {
         None
-    }
+    } //FIXME
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {