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| author | Todd Vierling <tv@duh.org> | 2014-05-09 13:09:49 -0400 |
|---|---|---|
| committer | Todd Vierling <tv@duh.org> | 2014-05-09 13:14:48 -0400 |
| commit | bed189ec8c373dfd429d424256dfbfcc17ac4221 (patch) | |
| tree | 68a380815061ccf346fa18a892301f53c5272c7e | |
| parent | 251616a107f4255203e318c9f6342f774d25e66d (diff) | |
| download | scala-bed189ec8c373dfd429d424256dfbfcc17ac4221.tar.gz scala-bed189ec8c373dfd429d424256dfbfcc17ac4221.tar.bz2 scala-bed189ec8c373dfd429d424256dfbfcc17ac4221.zip | |
@inline Predef.identity[A].
Since identity[A] is often used as a function directly supplied to
methods requiring (A)=>A, there's no need to have the generated
Function1 object contain an explicit call to identity[A]().
This implementation isn't going to change, so let the synthetic
Function1 elide the extra call, generating just "aload_1; areturn".
| -rw-r--r-- | src/library/scala/Predef.scala | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/library/scala/Predef.scala b/src/library/scala/Predef.scala index faeb1dcbe2..2be6a9dcc1 100644 --- a/src/library/scala/Predef.scala +++ b/src/library/scala/Predef.scala @@ -126,7 +126,7 @@ object Predef extends LowPriorityImplicits with DeprecatedPredef { def optManifest[T](implicit m: OptManifest[T]) = m // Minor variations on identity functions - def identity[A](x: A): A = x // @see `conforms` for the implicit version + @inline def identity[A](x: A): A = x // @see `conforms` for the implicit version @inline def implicitly[T](implicit e: T) = e // for summoning implicit values from the nether world -- TODO: when dependent method types are on by default, give this result type `e.type`, so that inliner has better chance of knowing which method to inline in calls like `implicitly[MatchingStrategy[Option]].zero` @inline def locally[T](x: T): T = x // to communicate intent and avoid unmoored statements |