Format comments (#711)

cmd/pen/src/package_builder.rs

@@ -15,8 +15,8 @@ pub fn build(target_triple: Option<&str>, verbose: bool) -> Result<(), Box<dyn s
         infrastructure::create(file_path_converter.clone(), &main_package_directory)?;
     let main_package_directory =
         file_path_converter.convert_to_file_path(&main_package_directory)?;
-    // TODO Share an external package directory to avoid initializing them multiple times for
-    // different targets.
+    // TODO Share an external package directory to avoid initializing them multiple
+    // times for different targets.
     let output_directory = main_package_directory.join(&app::infra::FilePath::new([
         OUTPUT_DIRECTORY,
         target_triple.unwrap_or(DEFAULT_TARGET_DIRECTORY),

lib/mir/src/analysis/reference_count/conversion.rs

@@ -21,8 +21,8 @@ fn convert_definition(
     definition: &Definition,
     global: bool,
 ) -> Result<Definition, ReferenceCountError> {
-    // Backend is expected to clone a function itself and its free variables at the very beginning
-    // of the function.
+    // Backend is expected to clone a function itself and its free variables at the
+    // very beginning of the function.
     let owned_variables = if global {
         None
     } else {
@@ -59,13 +59,14 @@ fn convert_definition(
     ))
 }
 
-// Here, we convert expressions tracking moved variables and cloning variables moved already.
-// The basic rules are listed below.
+// Here, we convert expressions tracking moved variables and cloning variables
+// moved already. The basic rules are listed below.
 //
 // - The returned values of functions are moved.
-// - Every input of expressions is moved including conditions of if expressions and records of record
-//   field operations.
-// - Newly bound variables in let expressions are dropped if they are not moved in their expressions.
+// - Every input of expressions is moved including conditions of if expressions
+//   and records of record field operations.
+// - Newly bound variables in let expressions are dropped if they are not moved
+//   in their expressions.
 fn convert_expression(
     expression: &Expression,
     owned_variables: &FnvHashMap<String, Type>,

lib/mir/src/ir/let_recursive.rs

@@ -12,9 +12,9 @@ use std::sync::Arc;
 //   function calls.
 //   - This requirement can be potentially removed by dropping every functions
 //     used in function calls inside the functions themselves.
-//     - This is safe because only global function definitions can be
-//       recursive.
-// - This recursion is necessary to compile "anonymous" loops in HIR effectively.
+//     - This is safe because only global function definitions can be recursive.
+// - This recursion is necessary to compile "anonymous" loops in HIR
+//   effectively.
 //   - e.g. list comprehension
 #[derive(Clone, Debug, PartialEq)]
 pub struct LetRecursive {

lib/os-sync/ffi/library/src/open_file_options.rs

@@ -15,7 +15,8 @@ impl From<OpenFileOptions> for OpenOptions {
     fn from(options: OpenFileOptions) -> Self {
         let mut open_options = Self::new();
 
-        // Set the create option after the create_new option because the latter is prioritized.
+        // Set the create option after the create_new option because the latter is
+        // prioritized.
         open_options
             .append(options.append)
             .create_new(options.create_new)

lib/os/ffi/application/src/main.rs

@@ -23,7 +23,8 @@ unsafe extern "C" fn _pen_os_main(_: &mut Stack, _: ContinuationFunction) -> ffi
 }
 
 fn main() {
-    // HACK Is it OK to call the _pen_os_main function with an extra argument of a closure environment?
+    // HACK Is it OK to call the _pen_os_main function with an extra argument of a
+    // closure environment?
     let code: ffi::Number =
         Runtime::new()
             .unwrap()

lib/os/ffi/library/src/open_file_options.rs

@@ -15,7 +15,8 @@ impl From<OpenFileOptions> for OpenOptions {
     fn from(options: OpenFileOptions) -> Self {
         let mut open_options = Self::new();
 
-        // Set the create option after the create_new option because the latter is prioritized.
+        // Set the create option after the create_new option because the latter is
+        // prioritized.
         open_options
             .append(options.append)
             .create_new(options.create_new)