fix reduce_vars on AST_Accessor

fixes #2774
2018-01-13 02:05:19 +08:00 · 2018-01-13 02:05:19 +08:00 · dbc637d391
commit dbc637d391
parent d4d7d99b70
2 changed files with 28 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@ -467,8 +467,9 @@ merge(Compressor.prototype, {
            if (node instanceof AST_SymbolRef) d.references.push(node);
            d.fixed = false;
        });
-        def(AST_Accessor, function(tw, descend) {
+        def(AST_Accessor, function(tw, descend, compressor) {
            push(tw);
+            reset_variables(tw, compressor, this);
            descend();
            pop(tw);
            return true;
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@ -5276,3 +5276,29 @@ duplicate_lambda_defun_name_2: {
    }
    expect_stdout: "0"
 }
+
+issue_2774: {
+    options = {
+        reduce_vars: true,
+        unused: true,
+    }
+    input: {
+        console.log({
+            get a() {
+                var b;
+                (b = true) && b.c;
+                b = void 0;
+            }
+        }.a);
+    }
+    expect: {
+        console.log({
+            get a() {
+                var b;
+                (b = true) && b.c;
+                b = void 0;
+            }
+        }.a);
+    }
+    expect_stdout: "undefined"
+}