Question

在我的播放应用中，我有一个包含公共文件路由的路由文件。最近我添加了-Ywarn-unused编译器标志，并且我收到了一些意外的警告。

步骤：

activator new testingScalac（从模板列表中选择play-scala）
使用build.sbt

scalacOptions ++= Seq("-Ywarn-unused")

添加到路线文件：

GET /favicon.ico controllers.Assets.at(path="/public",file="/images/favicon.ico")

GET /favicon.png controllers.Assets.at(path="/public",file="/images/favicon.png")

GET /robots.txt controllers.Assets.at(path="/public",file="robots.txt")

现在，运行sbt compile会返回：

$ sbt compile
[info] Loading project definition from /Users/pedrorijo/git/testRepos/testingScalac/project
[info] Set current project to testingScalac (in build file:/Users/pedrorijo/git/testRepos/testingScalac/)
[info] Compiling 4 Scala sources and 1 Java source to /Users/pedrorijo/git/testRepos/testingScalac/target/scala-2.11/classes...
[warn] /Users/pedrorijo/git/testRepos/testingScalac/conf/routes:15: local val in method at is never used
[warn] GET        /favicon.ico            controllers.Assets.at(path="/public",file="/images/favicon.ico")
[warn] /Users/pedrorijo/git/testRepos/testingScalac/conf/routes:16: local val in method at is never used
[warn] GET        /favicon.png            controllers.Assets.at(path="/public",file="/images/favicon.png")
[warn] /Users/pedrorijo/git/testRepos/testingScalac/conf/routes:17: local val in method at is never used
[warn] GET        /robots.txt             controllers.Assets.at(path="/public",file="robots.txt")
[warn] three warnings found
[success] Total time: 10 s, completed Jul 5, 2016 3:11:28 PM

我在路由文件上做错了什么，或者它是一个playframework /编译器错误（我查看了github并且找不到与此相关的任何内容）？

注意：它使用play 2.5.4但它也发生在play 2.4.x
上

Answer 1

创建了一个问题，它似乎是一个Play框架问题：https://github.com/playframework/playframework/issues/6302

与此同时，PR已经完成，可以解决：https://github.com/playframework/playframework/pull/7538

播放框架路由文件编译警告：方法at中的local val从未使用过

1 个答案: