element.py: Report errors using `self.get_kind()`

We should always show the user the "kind" string when referring
to a plugin type, not the type name with `type(self).__name__`.

1 files changed, 4 insertions, 4 deletions

diff --git a/buildstream/element.py b/buildstream/element.py
index 394439e37..2b2f16062 100644
--- a/buildstream/element.py
+++ b/buildstream/element.py
@@ -1676,14 +1676,14 @@ class Element(Plugin):
         if self.BST_FORBID_RDEPENDS:
             runtime_deps = list(self.dependencies(Scope.RUN, recurse=False))
             if runtime_deps:
-                raise ElementError("{}: Runtime dependencies are forbidden for elements of type {}"
-                                   .format(self, type(self).__name__), reason="element-forbidden-rdepends")
+                raise ElementError("{}: Runtime dependencies are forbidden for '{}' elements"
+                                   .format(self, self.get_kind()), reason="element-forbidden-rdepends")
 
         if self.BST_FORBID_SOURCES:
             sources = list(self.sources())
             if sources:
-                raise ElementError("{}: Sources are forbidden for elements of type {}"
-                                   .format(self, type(self).__name__), reason="element-forbidden-sources")
+                raise ElementError("{}: Sources are forbidden for '{}' elements"
+                                   .format(self, self.get_kind()), reason="element-forbidden-sources")
 
         self.preflight()