account for catch in constant lambda expressions (#3454)

2019-10-06 16:51:37 +08:00
parent 0a63f2f2b0
commit 8a4c7077bb
1 changed files with 6 additions and 0 deletions
--- 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();