Run clippy

schala-lang/language/src/ast/visitor.rs

@@ -39,12 +39,10 @@ pub fn walk_block<V: ASTVisitor>(v: &mut V, block: &Block) {
             Import(ref import_spec) => {
                 v.import(import_spec);
             }
-            Flow(ref flow_control) => match flow_control {
-                FlowControl::Return(Some(ref retval)) => {
+            Flow(ref flow_control) =>
+                if let FlowControl::Return(Some(ref retval)) = flow_control {
                     walk_expression(v, retval);
-                }
-                _ => (),
-            },
+                },
         }
     }
 }

schala-lang/language/src/lib.rs

@@ -6,9 +6,9 @@
 //! It defines the `Schala` type, which contains the state for a Schala REPL, and implements
 //! `ProgrammingLanguageInterface` and the chain of compiler passes for it.
 
-extern crate schala_repl;
-extern crate schala_lang_codegen;
 extern crate derivative;
+extern crate schala_lang_codegen;
+extern crate schala_repl;
 
 #[macro_use]
 mod util;

schala-lang/language/src/parsing/new.rs

@@ -26,10 +26,7 @@ impl Parser {
 
         schala_parser::program(input, self).map_err(|err: peg::error::ParseError<LineCol>| {
             let msg = err.to_string();
-            ParseError {
-                msg,
-                location: err.location.offset.into(),
-            }
+            ParseError { msg, location: err.location.offset.into() }
         })
     }
 
@@ -91,14 +88,14 @@ peg::parser! {
                 ImportSpecifier {
                     id: parser.fresh(),
                     path_components,
-                    imported_names: suffix.unwrap_or_else(|| ImportedNames::LastOfPath)
+                    imported_names: suffix.unwrap_or(ImportedNames::LastOfPath)
                 }
             }
 
         rule path_components() -> Vec<Rc<String>> =
             "::"? name:identifier() rest:path_component()* {
                 let mut items = vec![rc_string(name)];
-                items.extend(rest.into_iter().map(|n| rc_string(n)));
+                items.extend(rest.into_iter().map(rc_string));
                 items
             }
 
@@ -217,7 +214,7 @@ peg::parser! {
             __ kind:expression_kind(true, parser) _ type_anno:type_anno()? { Expression { id: parser.fresh(), type_anno, kind } }
 
         rule expression_no_struct(parser: &mut Parser) -> Expression =
-            __ kind:expression_kind(false, parser) { Expression { id: parser.fresh(), type_anno: None, kind: kind } }
+            __ kind:expression_kind(false, parser) { Expression { id: parser.fresh(), type_anno: None, kind } }
 
         rule expression_kind(struct_ok: bool, parser: &mut Parser) -> ExpressionKind =
             precedence_expr(struct_ok, parser)
@@ -568,11 +565,7 @@ impl BinopSequence {
             parser: &mut Parser,
         ) -> Expression {
             let mut lhs = Expression::new(parser.fresh(), lhs);
-            loop {
-                let (next_op, next_rhs) = match rest.pop() {
-                    Some((a, b)) => (a, b),
-                    None => break,
-                };
+            while let Some((next_op, next_rhs)) = rest.pop() {
                 let new_precedence = next_op.get_precedence();
                 if precedence >= new_precedence {
                     rest.push((next_op, next_rhs));

schala-lang/language/src/schala.rs

@@ -4,9 +4,7 @@ use schala_repl::{
 };
 use stopwatch::Stopwatch;
 
-use crate::{
-    error::SchalaError, parsing, reduced_ir, symbol_table, tree_walk_eval, type_inference,
-};
+use crate::{error::SchalaError, parsing, reduced_ir, symbol_table, tree_walk_eval, type_inference};
 
 /// All the state necessary to parse and execute a Schala program are stored in this struct.
 pub struct Schala<'a> {
@@ -127,7 +125,7 @@ impl SourceReference {
     pub(crate) fn load_new_source(&mut self, source: &str) {
         self.newline_offsets = vec![];
         for (offset, ch) in source.as_bytes().iter().enumerate() {
-            if *ch == ('\n' as u8) {
+            if *ch == b'\n' {
                 self.newline_offsets.push(offset);
             }
         }
@@ -194,7 +192,7 @@ impl<'a> ProgrammingLanguageInterface for Schala<'a> {
             self.run_pipeline(source, request.config).map_err(|schala_err| schala_err.display());
         let total_duration = sw.elapsed();
 
-        let stage_durations: Vec<_> = std::mem::replace(&mut self.timings, vec![])
+        let stage_durations: Vec<_> = std::mem::take(&mut self.timings)
             .into_iter()
             .map(|(label, duration)| (label.to_string(), duration))
             .collect();

schala-lang/language/src/symbol_table/resolver.rs

@@ -55,7 +55,7 @@ impl<'a> ScopeResolver<'a> {
         if components.len() == 1 {
             match name_type {
                 Some(NameType::Import(fqsn)) => {
-                    let def_id = self.symbol_table.symbol_trie.lookup(&fqsn);
+                    let def_id = self.symbol_table.symbol_trie.lookup(fqsn);
 
                     if let Some(def_id) = def_id {
                         self.symbol_table.id_to_def.insert(*id, def_id);
@@ -71,14 +71,14 @@ impl<'a> ScopeResolver<'a> {
                 Some(NameType::LocalFunction(item_id)) => {
                     let def_id = self.symbol_table.id_to_def.get(item_id);
                     if let Some(def_id) = def_id {
-                        let def_id = def_id.clone();
+                        let def_id = *def_id;
                         self.symbol_table.id_to_def.insert(*id, def_id);
                     }
                 }
                 Some(NameType::LocalVariable(item_id)) => {
                     let def_id = self.symbol_table.id_to_def.get(item_id);
                     if let Some(def_id) = def_id {
-                        let def_id = def_id.clone();
+                        let def_id = *def_id;
                         self.symbol_table.id_to_def.insert(*id, def_id);
                     }
                 }
@@ -87,10 +87,8 @@ impl<'a> ScopeResolver<'a> {
                         self.symbol_table.id_to_def.insert(*id, def_id);
                     },
             }
-        } else {
-            if let Some(def_id) = def_id {
-                self.symbol_table.id_to_def.insert(*id, def_id);
-            }
+        } else if let Some(def_id) = def_id {
+            self.symbol_table.id_to_def.insert(*id, def_id);
         }
     }
 }

schala-lang/language/src/tree_walk_eval/evaluator.rs

@@ -67,8 +67,7 @@ impl<'a, 'b> Evaluator<'a, 'b> {
             if self.early_returning {
                 break;
             }
-            if let Some(_) = self.loop_control {
-                println!("We here?");
+            if self.loop_control.is_some() {
                 break;
             }
         }