_loader/types: cimport yaml functions for better speed

- _yaml: export node_validate function as Cython, as it was not done
before. This requires rewriting the function to remove a closure.
- Optimize node check by not calling is_node().

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index e393096b8..ab3c6f30d 100755
--- a/setup.py
+++ b/setup.py
@@ -399,7 +399,7 @@ def register_cython_module(module_name, dependencies=None):
 BUILD_EXTENSIONS = []
 
 register_cython_module("buildstream._loader._loader")
-register_cython_module("buildstream._loader.types")
+register_cython_module("buildstream._loader.types", dependencies=["buildstream._yaml"])
 register_cython_module("buildstream._yaml")
 register_cython_module("buildstream._variables", dependencies=["buildstream._yaml"])