Martin Duhem a80966e394 Handle macros that have themselves as original tree ... It has been reported in sbt/sbt#1237 that stack overflows may occur during the extraction of used names (and later of dependencies between files). This problem has been introduced by sbt/sbt#1163, which was about recording the dependencies of macro arguments. When a macro is expanded, the compiler attaches the tree before expansion to the tree representing the expanded macro. As of Scala 2.11-RC3, some macros have themselves attached as original tree, which caused the same macro to be inspected over and over until a stack overflow. This commit solves this problem by making sure that the original of a macro expansion will be inspected if and only if it is different from the expanded tree. Fixes sbt/sbt#1237		2014-04-07 11:33:47 +02:00
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src	Handle macros that have themselves as original tree	2014-04-07 11:33:47 +02:00
NOTICE	legal cleanup	2010-02-07 23:45:19 -05:00