#43 ignoring macros

Author: sksamuel

build.sbt

@@ -12,12 +12,12 @@ resolvers := ("releases" at "https://oss.sonatype.org/service/local/staging/depl
 
 javacOptions ++= Seq("-source", "1.6", "-target", "1.6")
 
-scalaVersion := "2.11.2"
+scalaVersion := "2.11.0"
 
-crossScalaVersions := Seq("2.10.4", "2.11.2")
+crossScalaVersions := Seq("2.10.4", "2.11.0")
 
 libraryDependencies ++= Seq(
-  "org.scala-lang"                 % "scala-compiler"            % scalaVersion.value    % "provided",
+  "org.scala-lang"                 %     "scala-compiler"        % scalaVersion.value    % "provided",
   "commons-io"                     %     "commons-io"            % "2.4",
   "org.scalatest"                  %%    "scalatest"             % "2.2.1"       % "test",
   "com.typesafe.scala-logging"     %%    "scala-logging-slf4j"   % "2.1.2"       % "test",

src/main/scala/scoverage/plugin.scala

@@ -337,6 +337,9 @@ class ScoverageInstrumentationComponent(val global: Global)
             c
           }
 
+        // ignore macro definitions in 2.11
+        case DefDef(mods, _, _, _, _, _) if mods.isMacro => tree
+
         // this will catch methods defined as macros, eg def test = macro testImpl
         // it will not catch macro implemenations
         case d: DefDef if d.symbol != null

src/test/scala/scoverage/PluginCoverageTest.scala

@@ -1,7 +1,7 @@
 package scoverage
 
-import org.scalatest.{BeforeAndAfterEachTestData, OneInstancePerTest, FunSuite}
 import org.scalatest.mock.MockitoSugar
+import org.scalatest.{BeforeAndAfterEachTestData, FunSuite, OneInstancePerTest}
 
 /** @author Stephen Samuel */
 class PluginCoverageTest
@@ -23,6 +23,22 @@ class PluginCoverageTest
     assertNMeasuredStatements(2)
   }
 
+  test("scoverage should skip macros") {
+    val code = """
+              import scala.language.experimental.macros
+              import scala.reflect.macros.Context
+              class Impl(val c: Context) {
+                import c.universe._
+                def poly[T: c.WeakTypeTag] = c.literal(c.weakTypeOf[T].toString)
+              }
+              object Macros {
+                def poly[T] = macro Impl.poly[T]
+              }"""
+    compileCodeSnippet(code)
+    assert(!reporter.hasErrors)
+    assertNMeasuredStatements(0)
+  }
+
   test("scoverage should instrument final vals") {
     compileCodeSnippet( """ object FinalVals {
                           |  final val name = {