commit be9ff49d53a771db198fccd8daad01f7b7c36fce
author Denis Fokin <Denis.Fokin@jetbrains.com> Mon Feb 27 16:48:10 2017 +0300
committer Denis Fokin <Denis.Fokin@jetbrains.com> Mon Feb 27 16:48:10 2017 +0300
tree b1711a232e36cbe4d2be24acd10e55765cb3e1df
parent bac44b6f19fdbe1d2f0fed60ccd452076e70abf5

IDEA-157806 StackOverflowError on start when parsing PAC file to autodetect Proxy settings
Backport: 8169481: StackOverflowError on start when parsing PAC file to autodetect Proxy settings

src/jdk/nashorn/internal/codegen/WeighNodes.java

diff --git a/src/jdk/nashorn/internal/codegen/WeighNodes.java b/src/jdk/nashorn/internal/codegen/WeighNodes.java
index 494afb4..94048f7 100644
--- a/src/jdk/nashorn/internal/codegen/WeighNodes.java
+++ b/src/jdk/nashorn/internal/codegen/WeighNodes.java
@@ -77,6 +77,7 @@
     static final long CALL_WEIGHT      = 10;
     static final long CATCH_WEIGHT     = 10;
     static final long COMPARE_WEIGHT   =  6;
+    static final long CONST_WEIGHT     =  2;
     static final long CONTINUE_WEIGHT  =  1;
     static final long IF_WEIGHT        =  2;
     static final long LITERAL_WEIGHT   = 10;
@@ -185,7 +186,7 @@
 
     @Override
     public Node leaveIdentNode(final IdentNode identNode) {
-        weight += ACCESS_WEIGHT + identNode.getName().length() * 2;
+        weight += ACCESS_WEIGHT;
         return identNode;
     }
 
@@ -210,6 +211,11 @@
     @SuppressWarnings("rawtypes")
     @Override
     public boolean enterLiteralNode(final LiteralNode literalNode) {
+        if (literalNode instanceof LiteralNode.PrimitiveLiteralNode) {
+            weight += CONST_WEIGHT;
+            return false;
+        }
+
         weight += LITERAL_WEIGHT;
 
         if (literalNode instanceof ArrayLiteralNode) {

test/script/basic/JDK-8030182_2.js

diff --git a/test/script/basic/JDK-8030182_2.js b/test/script/basic/JDK-8030182_2.js
index 4c2f5c4..4b563de 100644
--- a/test/script/basic/JDK-8030182_2.js
+++ b/test/script/basic/JDK-8030182_2.js
@@ -31,7 +31,7 @@
 var str = "";
 
 // large code to force splitting
-for (i = 0; i < 1000; ++i)
+for (i = 0; i < 2000; ++i)
     str +="o = new Object()\n";
 
 str +="g()";