perf(parser): Shrink lalrpop's symbol size slightly

gluon-lang · Jan 12, 2019 · fff12fa · fff12fa
1 parent 7bd988e
commit fff12fa
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/parser/src/grammar.lalrpop b/parser/src/grammar.lalrpop
@@ -829,8 +829,8 @@ pub TopExpr: SpannedExpr<Id> = {
     "shebang line"? <expr: SpExpr> SkipExtraTokens => expr,
 };
 
-pub ReplLine: Option<ReplLine<Id>> = {
-    <TopExpr> => Some(ReplLine::Expr(<>)),
-    "block open" <PlainValueBinding> "block close" => Some(ReplLine::Let(<>)),
+pub ReplLine: Option<Box<ReplLine<Id>>> = {
+    <TopExpr> => Some(Box::new(ReplLine::Expr(<>))),
+    "block open" <PlainValueBinding> "block close" => Some(Box::new(ReplLine::Let(<>))),
     => None,
 };
diff --git a/parser/src/lib.rs b/parser/src/lib.rs
@@ -475,6 +475,7 @@ where
 
     match result {
         Ok(repl_line) => {
+            let repl_line = repl_line.map(|b| *b);
             if parse_errors.has_errors() {
                 Err((repl_line, transform_errors(input.span(), parse_errors)))
             } else {