From 2e20287f80f25bb2237d2c1c32358210c81bf2fc Mon Sep 17 00:00:00 2001
From: Alexey Andreev <Alexey.Andreev@jetbrains.com>
Date: Tue, 22 Nov 2016 22:10:18 +0300
Subject: [PATCH] JS: fix operator priority when rendering `new` expression

---
 .../javascript/rendering/StatementRenderer.java       | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/core/src/main/java/org/teavm/backend/javascript/rendering/StatementRenderer.java b/core/src/main/java/org/teavm/backend/javascript/rendering/StatementRenderer.java
index ba607b3b3..0925e8ae0 100644
--- a/core/src/main/java/org/teavm/backend/javascript/rendering/StatementRenderer.java
+++ b/core/src/main/java/org/teavm/backend/javascript/rendering/StatementRenderer.java
@@ -1137,8 +1137,19 @@ public class StatementRenderer implements ExprVisitor, StatementVisitor {
             if (expr.getLocation() != null) {
                 pushLocation(expr.getLocation());
             }
+
+            Precedence outerPrecedence = precedence;
+            if (outerPrecedence.ordinal() > Precedence.FUNCTION_CALL.ordinal()) {
+                writer.append('(');
+            }
+
             precedence = Precedence.FUNCTION_CALL;
+
             writer.append("new ").append(naming.getNameFor(expr.getConstructedClass()));
+            if (outerPrecedence.ordinal() > Precedence.FUNCTION_CALL.ordinal()) {
+                writer.append(')');
+            }
+
             if (expr.getLocation() != null) {
                 popLocation();
             }