From cb2074a152dda5ebcc8d03ec275b715cf34fa848 Mon Sep 17 00:00:00 2001
From: Basile Burg <basile.b@gmx.com>
Date: Fri, 7 Apr 2017 17:26:44 +0200
Subject: [PATCH] prevent a range error, close #368

---
 src/server/autocomplete.d | 11 +++++++++--
 tests/tc052/file.d        |  1 +
 tests/tc052/run.sh        |  4 ++++
 3 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 tests/tc052/file.d
 create mode 100755 tests/tc052/run.sh

diff --git a/src/server/autocomplete.d b/src/server/autocomplete.d
index e689c9e..84ece04 100644
--- a/src/server/autocomplete.d
+++ b/src/server/autocomplete.d
@@ -791,10 +791,14 @@ DSymbol*[] getSymbolsByTokenChain(T)(Scope* completionScope,
 		//writeln("<<<");
 		//dumpTokens(tokens.release);
 		//writeln("<<<");
+		if (tokens.length == 0) // workaround (#371)
+			return [];
 	}
 	else if (tokens[0] == tok!"." && tokens.length > 1)
 	{
 		tokens = tokens[1 .. $];
+		if (tokens.length == 0)	// workaround (#371)
+			return [];
 		symbols = completionScope.getSymbolsAtGlobalScope(stringToken(tokens[0]));
 	}
 	else
@@ -802,8 +806,11 @@ DSymbol*[] getSymbolsByTokenChain(T)(Scope* completionScope,
 
 	if (symbols.length == 0)
 	{
-		warning("Could not find declaration of ", stringToken(tokens[0]),
-			" from position ", cursorPosition);
+		//TODO: better bugfix for issue #368, see test case 52 or pull #371
+		if (tokens.length)
+			warning("Could not find declaration of ", stringToken(tokens[0]),
+				" from position ", cursorPosition);
+		else assert(0, "internal error");
 		return [];
 	}
 
diff --git a/tests/tc052/file.d b/tests/tc052/file.d
new file mode 100644
index 0000000..ae4e197
--- /dev/null
+++ b/tests/tc052/file.d
@@ -0,0 +1 @@
+void main(){assert(te.caretRightText == "tà");}
diff --git a/tests/tc052/run.sh b/tests/tc052/run.sh
new file mode 100755
index 0000000..c2f589e
--- /dev/null
+++ b/tests/tc052/run.sh
@@ -0,0 +1,4 @@
+set -e
+set -u
+
+../../bin/dcd-client $1 file.d -c46 -d