diff options
| -rw-r--r-- | src/repl/scala/tools/nsc/interpreter/ILoop.scala | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/repl/scala/tools/nsc/interpreter/ILoop.scala b/src/repl/scala/tools/nsc/interpreter/ILoop.scala index 8ec8b2ed5f..a84d076e76 100644 --- a/src/repl/scala/tools/nsc/interpreter/ILoop.scala +++ b/src/repl/scala/tools/nsc/interpreter/ILoop.scala @@ -22,6 +22,7 @@ import scala.reflect.classTag import StdReplTags._ import scala.concurrent.{ ExecutionContext, Await, Future, future } import ExecutionContext.Implicits._ +import scala.reflect.internal.util.BatchSourceFile /** The Scala interactive shell. It provides a read-eval-print loop * around the Interpreter class. @@ -530,8 +531,19 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) def pasteCommand(): Result = { echo("// Entering paste mode (ctrl-D to finish)\n") val code = readWhile(_ => true) mkString "\n" - echo("\n// Exiting paste mode, now interpreting.\n") - intp interpret code + if (code.trim.isEmpty) { + echo("\n// Nothing pasted, nothing gained.\n") + } else { + echo("\n// Exiting paste mode, now interpreting.\n") + val res = intp interpret code + // if input is incomplete, let the compiler try to say why + if (res == IR.Incomplete) { + echo("The pasted code is incomplete!\n") + // Remembrance of Things Pasted in an object + val errless = intp compileSources new BatchSourceFile("<pastie>", s"object pastel {\n$code\n}") + if (errless) echo("...but compilation found no error? Good luck with that.") + } + } () } |