Shorten some signatures

src/builder/cpp_file_builder.rs

@@ -11,7 +11,10 @@ impl FileBuilder for CppFileBuilder {
     }
 
     fn write_top_level(&mut self, output: &mut dyn Write) -> Result<()> {
-        write!(output, "#pragma once\n\n#include <cstddef>\n\n")
+        writeln!(output, "#pragma once\n")?;
+        writeln!(output, "#include <cstddef>\n")?;
+
+        Ok(())
     }
 
     fn write_namespace(

src/config.rs

@@ -27,6 +27,11 @@ pub enum Operation {
     },
 }
 
+#[derive(Debug, Deserialize, Serialize)]
+pub struct Config {
+    pub signatures: Vec<Signature>,
+}
+
 #[derive(Debug, Deserialize, Serialize)]
 pub struct Signature {
     pub name: String,
@@ -34,8 +39,3 @@ pub struct Signature {
     pub pattern: String,
     pub operations: Vec<Operation>,
 }
-
-#[derive(Debug, Deserialize, Serialize)]
-pub struct Config {
-    pub signatures: Vec<Signature>,
-}

src/main.rs

@@ -119,8 +119,8 @@ fn main() -> Result<()> {
     Ok(())
 }
 
-fn map_file_extension_to_builder(ext: &str) -> Result<FileBuilderEnum, &'static str> {
-    match ext {
+fn map_file_extension_to_builder(extension: &str) -> Result<FileBuilderEnum, &'static str> {
+    match extension {
         ".cs" => Ok(FileBuilderEnum::CSharpFileBuilder(CSharpFileBuilder)),
         ".hpp" => Ok(FileBuilderEnum::CppFileBuilder(CppFileBuilder)),
         ".json" => Ok(FileBuilderEnum::JsonFileBuilder(JsonFileBuilder::default())),