fix corner case in collapse_vars (#3582)

fixes #3581
2019-11-13 16:45:16 +08:00
parent d6fd18d0b0
commit fe65ce9658
2 changed files with 65 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1090,7 +1090,7 @@ merge(Compressor.prototype, {
                    scope = node;
                    break;
                } else if (node instanceof AST_Try) {
-                    in_try = true;
+                    in_try = node;
                }
            } while (node = compressor.parent(level++));
        }
@@ -1321,6 +1321,10 @@ merge(Compressor.prototype, {
            function is_last_node(node, parent) {
                if (node instanceof AST_Call) return true;
                if (node instanceof AST_Exit) {
+                    if (in_try) {
+                        if (in_try.bfinally) return true;
+                        if (in_try.bcatch && node instanceof AST_Throw) return true;
+                    }
                    return side_effects || lhs instanceof AST_PropAccess || may_modify(lhs);
                }
                if (node instanceof AST_Function) {