fix reduce_vars within try-block (#1818)

Possible partial execution due to exceptions.
2017-04-17 14:03:29 +08:00
parent 43ad4e9775
commit 6ad823d1e8
2 changed files with 44 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -359,7 +359,19 @@ merge(Compressor.prototype, {
                    pop();
                    return true;
                }
-                if (node instanceof AST_Catch || node instanceof AST_SwitchBranch) {
+                if (node instanceof AST_Try) {
+                    push();
+                    walk_body(node, tw);
+                    pop();
+                    if (node.bcatch) {
+                        push();
+                        node.bcatch.walk(tw);
+                        pop();
+                    }
+                    if (node.bfinally) node.bfinally.walk(tw);
+                    return true;
+                }
+                if (node instanceof AST_SwitchBranch) {
                    push();
                    descend();
                    pop();