From 8a61ff432543a29234193cd1f7c14abd3f3d31a0 Mon Sep 17 00:00:00 2001
From: Felix Mulder <felix.mulder@gmail.com>
Date: Wed, 2 Nov 2016 11:08:28 +0100
Subject: Move compiler and compiler tests to compiler dir

---
 .../dotty/tools/dotc/reporting/StoreReporter.scala | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 compiler/src/dotty/tools/dotc/reporting/StoreReporter.scala

(limited to 'compiler/src/dotty/tools/dotc/reporting/StoreReporter.scala')

diff --git a/compiler/src/dotty/tools/dotc/reporting/StoreReporter.scala b/compiler/src/dotty/tools/dotc/reporting/StoreReporter.scala
new file mode 100644
index 000000000..586273c2e
--- /dev/null
+++ b/compiler/src/dotty/tools/dotc/reporting/StoreReporter.scala
@@ -0,0 +1,46 @@
+package dotty.tools
+package dotc
+package reporting
+
+import core.Contexts.Context
+import collection.mutable
+import config.Printers.typr
+import diagnostic.MessageContainer
+import diagnostic.messages._
+
+/** This class implements a Reporter that stores all messages
+  *
+  * Beware that this reporter can leak memory, and force messages in two
+  * scenarios:
+  *
+  * - During debugging `config.Printers.typr` is set from `noPrinter` to `new
+  *   Printer`, which forces the message
+  * - The reporter is not flushed and the message containers capture a
+  *   `Context` (about 4MB)
+  */
+class StoreReporter(outer: Reporter) extends Reporter {
+
+  private var infos: mutable.ListBuffer[MessageContainer] = null
+
+  def doReport(m: MessageContainer)(implicit ctx: Context): Unit = {
+    typr.println(s">>>> StoredError: ${m.message}") // !!! DEBUG
+    if (infos == null) infos = new mutable.ListBuffer
+    infos += m
+  }
+
+  override def hasPending: Boolean = infos != null && {
+    infos exists {
+      case _: Error => true
+      case _: Warning => true
+      case _ => false
+    }
+  }
+
+  override def flush()(implicit ctx: Context) =
+    if (infos != null) {
+      infos.foreach(ctx.reporter.report(_))
+      infos = null
+    }
+
+  override def errorsReported = hasErrors || outer.errorsReported
+}
-- 
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