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-rw-r--r--src/compiler/scala/tools/nsc/util/SourceFile.scala2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/util/SourceFile.scala b/src/compiler/scala/tools/nsc/util/SourceFile.scala
index 90a9057f01..bc0f706649 100644
--- a/src/compiler/scala/tools/nsc/util/SourceFile.scala
+++ b/src/compiler/scala/tools/nsc/util/SourceFile.scala
@@ -22,7 +22,7 @@ abstract class SourceFile {
def isSelfContained: Boolean
def length : Int
def position(offset: Int) : Position = {
- assert(offset < length)
+ assert(offset < length, file + ": " + offset + " >= " + length)
new OffsetPosition(this, offset)
}
def position(line: Int, column: Int) : Position = new OffsetPosition(this, lineToOffset(line) + column)