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aoiroaoino/gist:9308248

Created March 2, 2014 15:29
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for文で三角形
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gistfile1.scala
scala> import scala.language.experimental.macros
import scala.language.experimental.macros
scala> import scala.reflect.macros.Context
import scala.reflect.macros.Context
scala> def for_impl(c: Context) = c.universe.reify(println("*\n**\n***\n****\n***\n**\n*"))
for_impl: (c: scala.reflect.macros.Context)c.universe.Expr[Unit]
scala> def for文 = macro for_impl
for文: Unit
scala> for文
*
**
***
****
***
**
*
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