From 56b50d1dffb9ef2e957dc329c433879910eb1b0a Mon Sep 17 00:00:00 2001
From: Dmitry Jemerov <yole@jetbrains.com>
Date: Thu, 31 Oct 2013 20:42:58 +0100
Subject: [PATCH] report parsing error if no expression was found after *
 (PY-10177 part 1)

---
 .../jetbrains/python/parsing/ExpressionParsing.java |  1 +
 python/testData/psi/LoneStar.py                     |  1 +
 python/testData/psi/LoneStar.txt                    | 13 +++++++++++++
 .../com/jetbrains/python/PythonParsingTest.java     |  4 ++++
 4 files changed, 19 insertions(+)
 create mode 100644 python/testData/psi/LoneStar.py
 create mode 100644 python/testData/psi/LoneStar.txt

diff --git a/python/src/com/jetbrains/python/parsing/ExpressionParsing.java b/python/src/com/jetbrains/python/parsing/ExpressionParsing.java
index 9181d02dc593..65c791a33aed 100644
--- a/python/src/com/jetbrains/python/parsing/ExpressionParsing.java
+++ b/python/src/com/jetbrains/python/parsing/ExpressionParsing.java
@@ -772,6 +772,7 @@ public class ExpressionParsing extends Parsing {
       PsiBuilder.Marker starExpr = myBuilder.mark();
       nextToken();
       if (!parseBitwiseORExpression(isTargetExpression)) {
+        myBuilder.error(message("PARSE.expected.expression"));
         starExpr.drop();
         return false;
       }
diff --git a/python/testData/psi/LoneStar.py b/python/testData/psi/LoneStar.py
new file mode 100644
index 000000000000..b54e94ecac2c
--- /dev/null
+++ b/python/testData/psi/LoneStar.py
@@ -0,0 +1 @@
+x = (*)
diff --git a/python/testData/psi/LoneStar.txt b/python/testData/psi/LoneStar.txt
new file mode 100644
index 000000000000..8dc1b17e3d36
--- /dev/null
+++ b/python/testData/psi/LoneStar.txt
@@ -0,0 +1,13 @@
+PyFile:LoneStar.py
+  PyAssignmentStatement
+    PyTargetExpression: x
+      PsiElement(Py:IDENTIFIER)('x')
+    PsiWhiteSpace(' ')
+    PsiElement(Py:EQ)('=')
+    PsiWhiteSpace(' ')
+    PyParenthesizedExpression
+      PsiElement(Py:LPAR)('(')
+      PsiElement(Py:MULT)('*')
+      PsiErrorElement:expression expected
+        <empty list>
+      PsiElement(Py:RPAR)(')')
\ No newline at end of file
diff --git a/python/testSrc/com/jetbrains/python/PythonParsingTest.java b/python/testSrc/com/jetbrains/python/PythonParsingTest.java
index 34119cf248ef..87f9e535ade2 100644
--- a/python/testSrc/com/jetbrains/python/PythonParsingTest.java
+++ b/python/testSrc/com/jetbrains/python/PythonParsingTest.java
@@ -398,6 +398,10 @@ public class PythonParsingTest extends ParsingTestCase {
     doTest();
   }
 
+  public void testLoneStar() {  // PY-10177
+    doTest();
+  }
+
   public void doTest(LanguageLevel languageLevel) {
     LanguageLevel prev = myLanguageLevel;
     myLanguageLevel = languageLevel;