Added suffix '_literal' to boolean literals (#196)

Also fix clippy lints

Author: JuanCortezEclyp

treeedb/src/cli.rs

@@ -32,10 +32,10 @@ fn handle_parse_errors(path: &str, tree: &Tree, on_parse_error: &OnParseError) {
         OnParseError::Warn if !node.has_error() => (),
         OnParseError::Error if !node.has_error() => (),
         OnParseError::Warn => {
-            eprintln!("[warn] Parse error in {}", path);
+            eprintln!("[warn] Parse error in {path}");
         }
         OnParseError::Error => {
-            eprintln!("[error] Parse error in {}", path);
+            eprintln!("[error] Parse error in {path}");
             process::exit(1);
         }
     }
@@ -58,7 +58,7 @@ pub struct Args {
 }
 
 fn read_file(file: &str) -> Result<String> {
-    fs::read_to_string(file).with_context(|| format!("Failed to read file {}", file))
+    fs::read_to_string(file).with_context(|| format!("Failed to read file {file}"))
 }
 
 fn parse(language: tree_sitter::Language, code: &str) -> Result<Tree> {

treeedbgen-souffle/src/cli.rs

@@ -26,7 +26,7 @@ pub fn main(node_types: &str) -> Result<()> {
     };
     if let Some(path) = args.output {
         let mut file = std::fs::File::create(&path)
-            .with_context(|| format!("Failed to write to file {}", path))?;
+            .with_context(|| format!("Failed to write to file {path}"))?;
         super::r#gen(&config, &mut file, node_types)?;
     } else {
         // https://nnethercote.github.io/perf-book/io.html#locking

treeedbgen-souffle/src/gen.rs

@@ -16,7 +16,11 @@ fn node_with_fields(
     w: &mut impl Write,
     node: &Node,
 ) -> Result<String, io::Error> {
-    let rel_name = &node.ty;
+    let rel_name = match node.ty.as_str() {
+        "true" => "true_literal",
+        "false" => "false_literal",
+        _ => &node.ty,
+    };
     let type_name = node.ty.to_upper_camel_case();
     writeln!(w, ".type {}{} <: symbol", config.type_prefix, type_name)?;
     writeln!(
@@ -55,7 +59,7 @@ fn node_with_fields(
                 node.ty.to_upper_camel_case(),
                 field_name.to_upper_camel_case(),
             );
-            write!(w, ".type {} = ", field_type_name)?;
+            write!(w, ".type {field_type_name} = ")?;
             let mut types = Vec::new();
             for t in &field.types {
                 if t.named {
@@ -189,7 +193,7 @@ impl PrivGenConfig {
         PrivGenConfig {
             printsize: config.printsize,
             relation_prefix: if let Some(pfx) = &config.prefix {
-                format!("{}_", pfx)
+                format!("{pfx}_")
             } else {
                 "".to_owned()
             },