Add basic code for feature version detection:

* store target version
* Add empty method decorator

1 files changed, 17 insertions, 0 deletions

diff --git a/mesonbuild/interpreterbase.py b/mesonbuild/interpreterbase.py
index 9f323d1..52dad72 100644
--- a/mesonbuild/interpreterbase.py
+++ b/mesonbuild/interpreterbase.py
@@ -17,6 +17,7 @@
 
 from . import mparser, mesonlib, mlog
 from . import environment, dependencies
+from . import coredata
 
 import os, copy, re, types
 from functools import wraps
@@ -123,6 +124,22 @@ class permittedKwargs:
             return f(*wrapped_args, **wrapped_kwargs)
         return wrapped
 
+class featureVersion:
+    """Checks for newer/deprecated features"""
+
+    def __init__(self, feature_name, wanted_version):
+        self.feature_name = feature_name
+        self.wanted_version = wanted_version
+
+    def __call__(self, f):
+        @wraps(f)
+        def wrapped(*wrapped_args, **wrapped_kwargs):
+            tv = coredata.target_version
+            if tv == '':
+                return
+            return f(*wrapped_args, **wrapped_kwargs)
+        return wrapped
+
 class InterpreterException(mesonlib.MesonException):
     pass