1 files changed, 12 insertions, 0 deletions
diff --git a/src/dotty/tools/dotc/transform/CtxLazy.scala b/src/dotty/tools/dotc/transform/CtxLazy.scala
new file mode 100644
index 000000000..c0bac4e11
--- /dev/null
+++ b/src/dotty/tools/dotc/transform/CtxLazy.scala
@@ -0,0 +1,12 @@
+package dotty.tools.dotc
+package util
+import core.Contexts.Context
+
+class CtxLazy[T](expr: Context => T) {
+  private var myValue: T = _
+  private var forced = false
+  def apply()(implicit ctx: Context): T = {
+    if (!forced) myValue = expr(ctx)
+    myValue
+  }
+}
+\ No newline at end of file