scala - 宏注释在 IntelliJ14 中不起作用

Question

我在使用 Scala 宏时遇到问题。它一直告诉我要

enable macro paradise to expand macro annotations

来 self 写的@compileTimeOnly 消息。我按照 Macro annotation documentation 中的所有说明进行操作和 SBT example .

集成环境:IntelliJ 14.1

Scala 版本:2.11.7

Project文件夹下的Build.scala:

import sbt._
import sbt.Keys._

object Build extends Build {
  val paradiseVersion = "2.1.0-M5"
  lazy val sm = Project(id = "server-modules", base = file(".")).settings(
    version := "1.0",
    logLevel := Level.Warn,
    scalacOptions ++= Seq(),
    scalaVersion := "2.11.7",
    crossScalaVersions := Seq("2.10.2", "2.10.3", "2.10.4", "2.10.5", "2.11.0", "2.11.1", "2.11.2", "2.11.3", "2.11.4", "2.11.5", "2.11.6", "2.11.7"),
    resolvers += Resolver.sonatypeRepo("snapshots"),
    resolvers += Resolver.sonatypeRepo("releases"),
    addCompilerPlugin("org.scalamacros" % "paradise" % paradiseVersion cross CrossVersion.full),
    libraryDependencies <+= (scalaVersion)("org.scala-lang" % "scala-reflect" % _),
  )
}

代码:

@compileTimeOnly("enable macro paradise to expand macro annotations")
class dmCompile extends StaticAnnotation{
  def macroTransform(annottees: Any*): Any = macro DMCompile.impl
}

object DMCompile {
  def impl(c: whitebox.Context)(annottees: c.Expr[Any]*): c.Expr[Any] = {
    import c.universe._

    Log.info("Work work work!")

    c.Expr(q"""var x = y""")
  }
}

@dmCompile class Test{}

我到底错过了什么？

Answer 1

这花了我一整天的时间，但我让它工作了。

只需忽略宏天堂的 SBT 设置，并手动将其添加到 Preference -> Scala Compiler

就是这样!