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Performs the following renamings:
* scala.reflect.macros.BlackboxContext to scala.reflect.macros.blackbox.Context
* scala.reflect.macros.BlackboxMacro to scala.reflect.macros.blackbox.Macro
* scala.reflect.macros.WhiteboxContext to scala.reflect.macros.whitebox.Context
* scala.reflect.macros.WhiteboxMacro to scala.reflect.macros.whitebox.Macro
https://groups.google.com/forum/#!topic/scala-internals/MX40-dM28rk
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This is the first commit in the series. This commit only:
1) Splits Context into BlackboxContext and WhiteboxContext
2) Splits Macro into BlackboxMacro and WhiteboxMacro
3) Introduces the isBundle property in the macro impl binding
Here we just teach the compiler that macros can now be blackbox and whitebox,
without actually imposing any restrictions on blackbox macros. These
restrictions will come in subsequent commits.
For description and documentation of the blackbox/whitebox separation
see the official macro guide at the scaladoc website:
http://docs.scala-lang.org/overviews/macros/blackbox-whitebox.html
Some infrastructure work to make evolving macros easier:
compile partest-extras with quick so they can use latest library/reflect/...
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Currently we allow macros to override non-abstract methods (in order
to provide performance enhancements such as foreach for collections),
and we also disallow macros to override abstract methods (otherwise
downcasting might lead to AbstractMethodErrors).
This patch fixes an oversight in the disallowing rule that prohibited
macros from overriding a concrete method if that concrete method itself
overrides an abstract method. RefCheck entertains all overriding pairs,
not only the immediate ones, so the disallowing rule was triggered.
Now macros can override abstract methods if and only if either the base
type or the self type contain a matching non-abstract method.
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