account for catch in constant lambda expressions (#3454)

mishoo · Oct 6, 2019 · 8a4c707 · 8a4c707
1 parent 0a63f2f
commit 8a4c707
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lib/compress.js b/lib/compress.js
@@ -3403,6 +3403,12 @@ merge(Compressor.prototype, {
             var inner_scopes = [];
             self.walk(new TreeWalker(function(node, descend) {
                 if (!result) return true;
+                if (node instanceof AST_Catch) {
+                    inner_scopes.push(node.argname.scope);
+                    descend();
+                    inner_scopes.pop();
+                    return true;
+                }
                 if (node instanceof AST_Scope && node !== self) {
                     inner_scopes.push(node);
                     descend();