From 7c16fb8a890edea80800bc034264fc79d3a5f62b Mon Sep 17 00:00:00 2001
From: Denis Zharkov <denis.zharkov@jetbrains.com>
Date: Wed, 9 Sep 2015 12:41:54 +0300
Subject: [PATCH] Fix StringIndexOutOfBoundsException

 #EA-72837 Fixed
---
 .../testData/diagnostics/tests/regressions/ea72837.kt    | 9 +++++++++
 .../testData/diagnostics/tests/regressions/ea72837.txt   | 5 +++++
 .../kotlin/checkers/JetDiagnosticsTestGenerated.java     | 6 ++++++
 .../resolve/scopes/DecapitalizedAnnotationScope.kt       | 2 +-
 4 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 compiler/testData/diagnostics/tests/regressions/ea72837.kt
 create mode 100644 compiler/testData/diagnostics/tests/regressions/ea72837.txt

diff --git a/compiler/testData/diagnostics/tests/regressions/ea72837.kt b/compiler/testData/diagnostics/tests/regressions/ea72837.kt
new file mode 100644
index 00000000000..45ff901ec27
--- /dev/null
+++ b/compiler/testData/diagnostics/tests/regressions/ea72837.kt
@@ -0,0 +1,9 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+fun <T> g(x: T) = 1
+fun h(x: () -> Unit) = 1
+
+fun foo() {
+    <!UNRESOLVED_REFERENCE!>f<!>(::<!SYNTAX!><!>)
+    g(::<!SYNTAX!><!>)
+    h(::<!SYNTAX!><!>)
+}
diff --git a/compiler/testData/diagnostics/tests/regressions/ea72837.txt b/compiler/testData/diagnostics/tests/regressions/ea72837.txt
new file mode 100644
index 00000000000..92c2cb3a8c5
--- /dev/null
+++ b/compiler/testData/diagnostics/tests/regressions/ea72837.txt
@@ -0,0 +1,5 @@
+package
+
+public fun foo(): kotlin.Unit
+public fun </*0*/ T> g(/*0*/ x: T): kotlin.Int
+public fun h(/*0*/ x: () -> kotlin.Unit): kotlin.Int
diff --git a/compiler/tests/org/jetbrains/kotlin/checkers/JetDiagnosticsTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/checkers/JetDiagnosticsTestGenerated.java
index 78e33187ce3..503851af02d 100644
--- a/compiler/tests/org/jetbrains/kotlin/checkers/JetDiagnosticsTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/checkers/JetDiagnosticsTestGenerated.java
@@ -11262,6 +11262,12 @@ public class JetDiagnosticsTestGenerated extends AbstractJetDiagnosticsTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("ea72837.kt")
+            public void testEa72837() throws Exception {
+                String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/regressions/ea72837.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("ErrorsOnIbjectExpressionsAsParameters.kt")
             public void testErrorsOnIbjectExpressionsAsParameters() throws Exception {
                 String fileName = JetTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/regressions/ErrorsOnIbjectExpressionsAsParameters.kt");
diff --git a/core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/DecapitalizedAnnotationScope.kt b/core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/DecapitalizedAnnotationScope.kt
index 08896ebff39..43edc71d483 100644
--- a/core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/DecapitalizedAnnotationScope.kt
+++ b/core/descriptors/src/org/jetbrains/kotlin/resolve/scopes/DecapitalizedAnnotationScope.kt
@@ -40,7 +40,7 @@ public class DecapitalizedAnnotationScope(override val workerScope: JetScope) :
     private fun findDecapitalizedAnnotation(name: Name, location: LookupLocation): ClassifierDescriptor? {
         val nameAsString = name.asString()
 
-        if (nameAsString[0].isUpperCase() || nameAsString !in DECAPITALIZED_SHORT_NAMES) return null
+        if (nameAsString.length() == 0 || nameAsString[0].isUpperCase() || nameAsString !in DECAPITALIZED_SHORT_NAMES) return null
         val capitalizedIdentifier = Name.identifier(nameAsString.capitalize())
 
         val capitalizedClassifier = getClassifier(capitalizedIdentifier, location) ?: return null