Capture check stdlib under new scheme

Author: Linyxus

scala2-library-cc/src/scala/collection/Iterable.scala

@@ -682,7 +682,7 @@ trait IterableOps[+A, +CC[_], +C] extends Any with IterableOnce[A] with Iterable
 
   def map[B](f: A => B): CC[B]^{this, f} = iterableFactory.from(new View.Map(this, f))
 
-  def flatMap[B](f: A => IterableOnce[B]^): CC[B]^{this, f} = iterableFactory.from(new View.FlatMap(this, f))
+  def flatMap[B](@caps.use f: A => IterableOnce[B]^): CC[B]^{this, f*} = iterableFactory.from(new View.FlatMap(this, f))
 
   def flatten[B](implicit asIterable: A -> IterableOnce[B]): CC[B]^{this} = flatMap(asIterable)
 
@@ -902,7 +902,7 @@ object IterableOps {
     def map[B](f: A => B): CC[B]^{this, f} =
       self.iterableFactory.from(new View.Map(filtered, f))
 
-    def flatMap[B](f: A => IterableOnce[B]^): CC[B]^{this, f} =
+    def flatMap[B](@caps.use f: A => IterableOnce[B]^): CC[B]^{this, f*} =
       self.iterableFactory.from(new View.FlatMap(filtered, f))
 
     def foreach[U](f: A => U): Unit = filtered.foreach(f)

scala2-library-cc/src/scala/collection/IterableOnce.scala

@@ -246,10 +246,9 @@ final class IterableOnceExtensionMethods[A](private val it: IterableOnce[A]) ext
   }
 
   @deprecated("Use .iterator.flatMap instead or consider requiring an Iterable", "2.13.0")
-  def flatMap[B](f: A => IterableOnce[B]^): IterableOnce[B]^{f} = it match {
+  def flatMap[B](@caps.use f: A => IterableOnce[B]^): IterableOnce[B]^{f*} = it match
     case it: Iterable[A] => it.flatMap(f)
     case _ => it.iterator.flatMap(f)
-  }
 
   @deprecated("Use .iterator.sameElements instead", "2.13.0")
   def sameElements[B >: A](that: IterableOnce[B]): Boolean = it.iterator.sameElements(that)
@@ -439,7 +438,7 @@ trait IterableOnceOps[+A, +CC[_], +C] extends Any { this: IterableOnce[A]^ =>
    *  @return       a new $coll resulting from applying the given collection-valued function
    *                `f` to each element of this $coll and concatenating the results.
    */
-  def flatMap[B](f: A => IterableOnce[B]^): CC[B]^{this, f}
+  def flatMap[B](@caps.use f: A => IterableOnce[B]^): CC[B]^{this, f*}
 
   /** Converts this $coll of iterable collections into
    *  a $coll formed by the elements of these iterable

scala2-library-cc/src/scala/collection/Iterator.scala

@@ -588,7 +588,7 @@ trait Iterator[+A] extends IterableOnce[A] with IterableOnceOps[A, Iterator, Ite
     def next() = f(self.next())
   }
 
-  def flatMap[B](f: A => IterableOnce[B]^): Iterator[B]^{this, f} = new AbstractIterator[B] {
+  def flatMap[B](@caps.use f: A => IterableOnce[B]^): Iterator[B]^{this, f*} = new AbstractIterator[B] {
     private[this] var cur: Iterator[B]^{f} = Iterator.empty
     /** Trillium logic boolean: -1 = unknown, 0 = false, 1 = true */
     private[this] var _hasNext: Int = -1
@@ -623,7 +623,7 @@ trait Iterator[+A] extends IterableOnce[A] with IterableOnceOps[A, Iterator, Ite
     }
   }
 
-  def flatten[B](implicit ev: A -> IterableOnce[B]): Iterator[B]^{this} =
+  def flatten[B](implicit ev: A -> IterableOnce[B]): Iterator[B]^{this, ev*} =
     flatMap[B](ev)
 
   def concat[B >: A](xs: => IterableOnce[B]^): Iterator[B]^{this, xs} = new Iterator.ConcatIterator[B](self).concat(xs)
@@ -982,7 +982,7 @@ object Iterator extends IterableFactory[Iterator] {
   /** Creates a target $coll from an existing source collection
     *
     * @param source Source collection
-    * @tparam A the type of the collection’s elements
+    * @tparam A the type of the collection's elements
     * @return a new $coll with the elements of `source`
     */
   override def from[A](source: IterableOnce[A]^): Iterator[A]^{source} = source.iterator
@@ -1003,7 +1003,7 @@ object Iterator extends IterableFactory[Iterator] {
 
   /**
     * @return A builder for $Coll objects.
-    * @tparam A the type of the ${coll}’s elements
+    * @tparam A the type of the ${coll}'s elements
     */
   def newBuilder[A]: Builder[A, Iterator[A]] =
     new ImmutableBuilder[A, Iterator[A]](empty[A]) {

scala2-library-cc/src/scala/collection/Map.scala

@@ -321,7 +321,7 @@ trait MapOps[K, +V, +CC[_, _] <: IterableOps[_, AnyConstr, _], +C]
     *  @return       a new $coll resulting from applying the given collection-valued function
     *                `f` to each element of this $coll and concatenating the results.
     */
-  def flatMap[K2, V2](f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2] = mapFactory.from(new View.FlatMap(this, f))
+  def flatMap[K2, V2](@caps.use f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2] = mapFactory.from(new View.FlatMap(this, f))
 
   /** Returns a new $coll containing the elements from the left hand operand followed by the elements from the
     *  right hand operand. The element type of the $coll is the most specific superclass encompassing
@@ -383,7 +383,7 @@ object MapOps {
     def map[K2, V2](f: ((K, V)) => (K2, V2)): CC[K2, V2]^{this, f} =
       self.mapFactory.from(new View.Map(filtered, f))
 
-    def flatMap[K2, V2](f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2]^{this, f} =
+    def flatMap[K2, V2](@caps.use f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2]^{this, f*} =
       self.mapFactory.from(new View.FlatMap(filtered, f))
 
     override def withFilter(q: ((K, V)) => Boolean): WithFilter[K, V, IterableCC, CC]^{this, q} =

scala2-library-cc/src/scala/collection/SortedMap.scala

@@ -208,7 +208,7 @@ object SortedMapOps {
     def map[K2 : Ordering, V2](f: ((K, V)) => (K2, V2)): CC[K2, V2] =
       self.sortedMapFactory.from(new View.Map(filtered, f))
 
-    def flatMap[K2 : Ordering, V2](f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2] =
+    def flatMap[K2 : Ordering, V2](@caps.use f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2] =
       self.sortedMapFactory.from(new View.FlatMap(filtered, f))
 
     override def withFilter(q: ((K, V)) => Boolean): WithFilter[K, V, IterableCC, MapCC, CC]^{this, q} =

scala2-library-cc/src/scala/collection/StrictOptimizedIterableOps.scala

@@ -104,7 +104,7 @@ trait StrictOptimizedIterableOps[+A, +CC[_], +C]
     b.result()
   }
 
-  override def flatMap[B](f: A => IterableOnce[B]^): CC[B] =
+  override def flatMap[B](@caps.use f: A => IterableOnce[B]^): CC[B] =
     strictOptimizedFlatMap(iterableFactory.newBuilder, f)
 
   /**

scala2-library-cc/src/scala/collection/StrictOptimizedMapOps.scala

@@ -29,7 +29,7 @@ trait StrictOptimizedMapOps[K, +V, +CC[_, _] <: IterableOps[_, AnyConstr, _], +C
   override def map[K2, V2](f: ((K, V)) => (K2, V2)): CC[K2, V2] =
     strictOptimizedMap(mapFactory.newBuilder, f)
 
-  override def flatMap[K2, V2](f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2] =
+  override def flatMap[K2, V2](@caps.use f: ((K, V)) => IterableOnce[(K2, V2)]^): CC[K2, V2] =
     strictOptimizedFlatMap(mapFactory.newBuilder, f)
 
   override def concat[V2 >: V](suffix: IterableOnce[(K, V2)]^): CC[K, V2] =

scala2-library-cc/src/scala/collection/View.scala

@@ -309,8 +309,8 @@ object View extends IterableFactory[View] {
 
   /** A view that flatmaps elements of the underlying collection. */
   @SerialVersionUID(3L)
-  class FlatMap[A, B](underlying: SomeIterableOps[A]^, f: A => IterableOnce[B]^) extends AbstractView[B] {
-    def iterator: Iterator[B]^{underlying, f} = underlying.iterator.flatMap(f)
+  class FlatMap[A, B](underlying: SomeIterableOps[A]^, @caps.use f: A => IterableOnce[B]^) extends AbstractView[B] {
+    def iterator: Iterator[B]^{underlying, f*} = underlying.iterator.flatMap(f)
     override def knownSize: Int = if (underlying.knownSize == 0) 0 else super.knownSize
     override def isEmpty: Boolean = iterator.isEmpty
   }

scala2-library-cc/src/scala/collection/WithFilter.scala

@@ -45,7 +45,7 @@ abstract class WithFilter[+A, +CC[_]] extends Serializable {
     *                of the filtered outer $coll and
     *                concatenating the results.
     */
-  def flatMap[B](f: A => IterableOnce[B]^): CC[B]^{this, f}
+  def flatMap[B](@caps.use f: A => IterableOnce[B]^): CC[B]^{this, f*}
 
   /** Applies a function `f` to all elements of the `filtered` outer $coll.
     *

scala2-library-cc/src/scala/collection/immutable/LazyListIterable.scala

@@ -592,7 +592,7 @@ final class LazyListIterable[+A] private(@untrackedCaptures lazyState: () => Laz
     */
   // optimisations are not for speed, but for functionality
   // see tickets #153, #498, #2147, and corresponding tests in run/ (as well as run/stream_flatmap_odds.scala)
-  override def flatMap[B](f: A => IterableOnce[B]^): LazyListIterable[B]^{this, f} =
+  override def flatMap[B](@caps.use f: A => IterableOnce[B]^): LazyListIterable[B]^{this, f} =
     if (knownIsEmpty) LazyListIterable.empty
     else LazyListIterable.flatMapImpl(this, f)
 
@@ -1307,7 +1307,7 @@ object LazyListIterable extends IterableFactory[LazyListIterable] {
     extends collection.WithFilter[A, LazyListIterable] {
     private[this] val filtered = lazyList.filter(p)
     def map[B](f: A => B): LazyListIterable[B]^{this, f} = filtered.map(f)
-    def flatMap[B](f: A => IterableOnce[B]^): LazyListIterable[B]^{this, f} = filtered.flatMap(f)
+    def flatMap[B](@caps.use f: A => IterableOnce[B]^): LazyListIterable[B]^{this, f} = filtered.flatMap(f)
     def foreach[U](f: A => U): Unit = filtered.foreach(f)
     def withFilter(q: A => Boolean): collection.WithFilter[A, LazyListIterable]^{this, q} = new WithFilter(filtered, q)
   }

scala2-library-cc/src/scala/collection/immutable/List.scala

@@ -286,7 +286,7 @@ sealed abstract class List[+A]
     }
   }
 
-  final override def flatMap[B](f: A => IterableOnce[B]^): List[B] = {
+  final override def flatMap[B](@caps.use f: A => IterableOnce[B]^): List[B] = {
     var rest = this
     var h: ::[B] = null
     var t: ::[B] = null

scala2-library-cc/src/scala/collection/immutable/TreeSeqMap.scala

@@ -234,7 +234,7 @@ final class TreeSeqMap[K, +V] private (
     bdr.result()
   }
 
-  override def flatMap[K2, V2](f: ((K, V)) => IterableOnce[(K2, V2)]^): TreeSeqMap[K2, V2] = {
+  override def flatMap[K2, V2](@caps.use f: ((K, V)) => IterableOnce[(K2, V2)]^): TreeSeqMap[K2, V2] = {
     val bdr = newBuilder[K2, V2](orderedBy)
     val iter = ordering.iterator
     while (iter.hasNext) {