fix corner cases with block-scoped functions (#4695)

2021-02-26 20:16:14 +00:00
parent ea52339502
commit ac26993b5a
6 changed files with 271 additions and 20 deletions
--- a/lib/scope.js
+++ b/lib/scope.js
@@ -327,6 +327,13 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options) {
                    self.uses_eval = true;
                }
            }
+            if (sym.init instanceof AST_LambdaDefinition && sym.scope !== sym.init.name.scope) {
+                var scope = node.scope;
+                do {
+                    if (scope === sym.init.name.scope) break;
+                } while (scope = scope.parent_scope);
+                if (!scope) sym.init = undefined;
+            }
            node.thedef = sym;
            node.reference(options);
            return true;