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Diffstat (limited to 'src/library/scala/reflect/makro/Symbols.scala')
| -rw-r--r-- | src/library/scala/reflect/makro/Symbols.scala | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/library/scala/reflect/makro/Symbols.scala b/src/library/scala/reflect/makro/Symbols.scala new file mode 100644 index 0000000000..91a5f6d8a5 --- /dev/null +++ b/src/library/scala/reflect/makro/Symbols.scala @@ -0,0 +1,17 @@ +package scala.reflect.makro + +trait Symbols { + self: Context => + + /** Can this symbol be loaded by a reflective mirror? + * + * Scalac relies on `ScalaSignature' annotation to retain symbols across compilation runs. + * Such annotations (also called "pickles") are applied on top-level classes and include information + * about all symbols reachable from the annotee. However, local symbols (e.g. classes or definitions local to a block) + * are typically unreachable and information about them gets lost. + * + * This method is useful for macro writers who wish to save certain ASTs to be used at runtime. + * With `isLocatable' it's possible to check whether a tree can be retained as is, or it needs special treatment. + */ + def isLocatable(sym: Symbol): Boolean +}
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