code: def SourceCode(self, entry, builder):
          
          msg = """SourceCode() has been deprecated and there is no replacement.
  \tIf you need this function, please contact scons-dev@scons.org"""
          SCons.Warnings.warn(SCons.Warnings.DeprecatedSourceCodeWarning, msg)
          entries = self.arg2nodes(entry, self.fs.Entry)
          for entry in entries:
              entry.set_src_builder(builder)
          return entries
docs: Arrange for a source code builder for (part of) a tree.