Add license to Flow

Makefile

@@ -17,6 +17,12 @@ emseries-dev:
 emseries-test:
 	cd emseries && make test
 
+flow-dev:
+	cd flow && make dev
+
+flow-test:
+	cd flow && make test
+
 fluent-ergonomics-dev:
 	cd fluent-ergonomics && make dev
 

flow/Cargo.toml

@@ -2,6 +2,8 @@
 name = "flow"
 version = "0.1.0"
 edition = "2021"
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

flow/Makefile

@@ -0,0 +1,5 @@
+dev:
+	cargo watch -x build
+
+test:
+	cargo watch -x test

flow/src/lib.rs

@@ -1,3 +1,15 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of the Luminescent Dreams Tools.
+
+Luminescent Dreams Tools is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+Luminescent Dreams Tools is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with Lumeto. If not, see <https://www.gnu.org/licenses/>.
+*/
+
 //! Control Flow for Correctness-Critical applications
 //!
 //! https://sled.rs/errors.html
@@ -113,8 +125,8 @@ pub fn fatal<A, FE: FatalError, E: Error>(err: FE) -> Flow<A, FE, E> {
     Flow::Fatal(err)
 }
 
-#[macro_export]
 /// Return early from the current function if the value is a fatal error.
+#[macro_export]
 macro_rules! return_fatal {
     ($x:expr) => {
         match $x {
@@ -149,7 +161,7 @@ mod test {
     }
     impl super::FatalError for FatalError {}
     impl PartialEq for FatalError {
-        fn eq(&self, rhs: &Self) -> bool {
+        fn eq(&self, _rhs: &Self) -> bool {
             true
         }
     }
@@ -160,7 +172,7 @@ mod test {
         Error,
     }
     impl PartialEq for Error {
-        fn eq(&self, rhs: &Self) -> bool {
+        fn eq(&self, _rhs: &Self) -> bool {
             true
         }
     }
@@ -218,7 +230,7 @@ mod test {
             let value = return_fatal!(error::<i32, FatalError, Error>(Error::Error));
             match value {
                 Ok(_) => panic!("shouldn't have gotten here"),
-                Err(err) => ok(0),
+                Err(_) => ok(0),
             }
         }