diff options
Diffstat (limited to 'src/compiler/scala/tools/nsc/typechecker/AnalyzerPlugins.scala')
-rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/AnalyzerPlugins.scala | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/AnalyzerPlugins.scala b/src/compiler/scala/tools/nsc/typechecker/AnalyzerPlugins.scala index fa6e5399eb..5a70d4c524 100644 --- a/src/compiler/scala/tools/nsc/typechecker/AnalyzerPlugins.scala +++ b/src/compiler/scala/tools/nsc/typechecker/AnalyzerPlugins.scala @@ -190,6 +190,16 @@ trait AnalyzerPlugins { self: Analyzer => def pluginsTypedMacroBody(typer: Typer, ddef: DefDef): Option[Tree] = None /** + * Figures out whether the given macro definition is blackbox or whitebox. + * + * Default implementation provided in `self.standardIsBlackbox` loads the macro impl binding + * and fetches boxity from the "isBlackbox" field of the macro signature. + * + * $nonCumulativeReturnValueDoc. + */ + def pluginsIsBlackbox(macroDef: Symbol): Option[Boolean] = None + + /** * Expands an application of a def macro (i.e. of a symbol that has the MACRO flag set), * possibly using the current typer mode and the provided prototype. * @@ -375,6 +385,14 @@ trait AnalyzerPlugins { self: Analyzer => def custom(plugin: MacroPlugin) = plugin.pluginsTypedMacroBody(typer, ddef) }) + /** @see MacroPlugin.pluginsIsBlackbox */ + def pluginsIsBlackbox(macroDef: Symbol): Boolean = invoke(new NonCumulativeOp[Boolean] { + def position = macroDef.pos + def description = "compute boxity for this macro definition" + def default = standardIsBlackbox(macroDef) + def custom(plugin: MacroPlugin) = plugin.pluginsIsBlackbox(macroDef) + }) + /** @see MacroPlugin.pluginsMacroExpand */ def pluginsMacroExpand(typer: Typer, expandee: Tree, mode: Mode, pt: Type): Tree = invoke(new NonCumulativeOp[Tree] { def position = expandee.pos |