Fix sbt-test/source-dependencies/binary

Author: nicolasstucki

compiler/src/dotty/tools/dotc/core/Symbols.scala

@@ -150,7 +150,8 @@ object Symbols {
       * symbols defined by the user in a prior run of the REPL, that are still valid.
       */
     final def isDefinedInSource(using Context): Boolean =
-      span.exists && isValidInCurrentRun && associatedFileMatches(_.extension != "class")
+      span.exists && isValidInCurrentRun
+      && associatedFileMatches(file => file.extension != "class" && file.extension != "tasty")
 
     /** Is symbol valid in current run? */
     final def isValidInCurrentRun(using Context): Boolean =
@@ -284,7 +285,7 @@ object Symbols {
 
     final def source(using Context): SourceFile = {
       def valid(src: SourceFile): SourceFile =
-        if (src.exists && src.file.extension != "class") src
+        if (src.exists && src.file.extension != "class" && src.file.extension != "tasty") src
         else NoSource
 
       if (!denot.exists) NoSource

compiler/src/dotty/tools/dotc/sbt/ExtractDependencies.scala

@@ -144,6 +144,13 @@ class ExtractDependencies extends Phase {
       if (depFile.extension == "class") {
         // Dependency is external -- source is undefined
         processExternalDependency(depFile, dep.to.binaryClassName)
+      } else if (depFile.extension == "tasty") {
+        val parent = depFile match  // TODO: simplify when #3552 is fixed
+          case depFile: io.ZipArchive#Entry => depFile.parent
+          case _ => depFile.container
+        val depClassFile = parent.lookupName(dep.to.binaryClassName + ".class", directory = false)
+        if depClassFile != null then
+          processExternalDependency(depClassFile, dep.to.binaryClassName)
       } else if (allowLocal || depFile.file != sourceFile) {
         // We cannot ignore dependencies coming from the same source file because
         // the dependency info needs to propagate. See source-dependencies/trait-trait-211.

sbt-test/source-dependencies/binary/test

@@ -3,4 +3,4 @@
 $ sleep 2000
 
 $ copy-file changes/Break.scala dep/A.scala
-# FIXME -> use/compile
+-> use/compile