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| author | Eugene Burmako <xeno.by@gmail.com> | 2012-04-12 01:59:46 +0200 |
|---|---|---|
| committer | Eugene Burmako <xeno.by@gmail.com> | 2012-04-12 02:04:14 +0200 |
| commit | 814cf34fb00f9ccb001249f4b3445ebc4f9942c9 (patch) | |
| tree | 24dd54da571d27f10b0c482a6e08932c318fd7b2 /test/files/run/macro-impl-default-params | |
| parent | db3056f11730da19e4e56f09f12e300bda62f57c (diff) | |
| download | scala-814cf34fb00f9ccb001249f4b3445ebc4f9942c9.tar.gz scala-814cf34fb00f9ccb001249f4b3445ebc4f9942c9.tar.bz2 scala-814cf34fb00f9ccb001249f4b3445ebc4f9942c9.zip | |
Next generation of macros
Implements SIP 16: Self-cleaning macros: http://bit.ly/wjjXTZ
Features:
* Macro defs
* Reification
* Type tags
* Manifests aliased to type tags
* Extended reflection API
* Several hundred tests
* 1111 changed files
Not yet implemented:
* Reification of refined types
* Expr.value splicing
* Named and default macro expansions
* Intricacies of interaction between macros and implicits
* Emission of debug information for macros (compliant with JSR-45)
Dedicated to Yuri Alekseyevich Gagarin
Diffstat (limited to 'test/files/run/macro-impl-default-params')
| -rw-r--r-- | test/files/run/macro-impl-default-params/Impls_Macros_1.scala | 20 | ||||
| -rw-r--r-- | test/files/run/macro-impl-default-params/Test_2.scala | 4 |
2 files changed, 24 insertions, 0 deletions
diff --git a/test/files/run/macro-impl-default-params/Impls_Macros_1.scala b/test/files/run/macro-impl-default-params/Impls_Macros_1.scala new file mode 100644 index 0000000000..cece1c09e4 --- /dev/null +++ b/test/files/run/macro-impl-default-params/Impls_Macros_1.scala @@ -0,0 +1,20 @@ +import scala.reflect.makro.{Context => Ctx} + +object Impls { + def foo_targs[T, U: c.TypeTag](c: Ctx = null)(x: c.Expr[Int] = null) = { + import c.{prefix => prefix} + import c.mirror._ + val U = implicitly[c.TypeTag[U]] + val body = Block( + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("invoking foo_targs...")))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("type of prefix is: " + prefix.tpe)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("type of prefix tree is: " + prefix.tree.tpe)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("U is: " + U.tpe)))), + Literal(Constant(()))) + Expr[Unit](body) + } +} + +class Macros[T] { + def foo_targs[U](x: Int) = macro Impls.foo_targs[T, U] +} diff --git a/test/files/run/macro-impl-default-params/Test_2.scala b/test/files/run/macro-impl-default-params/Test_2.scala new file mode 100644 index 0000000000..90e850df21 --- /dev/null +++ b/test/files/run/macro-impl-default-params/Test_2.scala @@ -0,0 +1,4 @@ +object Test extends App { + println("foo_targs:") + new Macros[Int]().foo_targs[String](42) +}
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