Merge pull request #8898 from e820/interpreter-required-arguments

interpreter: Add checked kwarg to compiler.get_supported_arguments

docs/markdown/snippets/compiler_argument_checking.md

@@ -0,0 +1,6 @@
+## Compiler argument checking for `get_supported_arguments`
+
+The compiler method `get_supported_arguments` now supports
+a new keyword argument named `checked` that can be set to
+one of `warn`, `require` or `off` (defaults to `off`) to
+enforce argument checks.

mesonbuild/interpreter/compiler.py

@@ -1,5 +1,7 @@
 import functools
 
+from ..interpreterbase.decorators import typed_kwargs, KwargInfo
+
 from .interpreterobjects import (extract_required_kwarg, extract_search_dirs)
 
 from .. import mesonlib
@@ -684,12 +686,24 @@ class CompilerHolder(ObjectHolder['Compiler']):
         return result
 
     @FeatureNew('compiler.get_supported_arguments', '0.43.0')
-    @permittedKwargs({})
+    @typed_kwargs(
-    def get_supported_arguments_method(self, args, kwargs):
+        'compiler.get_supported_arguments',
+        KwargInfo('checked', str, default='off', since='0.59.0',
+                  validator=lambda s: 'must be one of "warn", "require" or "off"' if s not in ['warn', 'require', 'off'] else None)
+    )
+    def get_supported_arguments_method(self, args: T.Sequence[str], kwargs: T.Dict[str, T.Any]):
         args = mesonlib.stringlistify(args)
         supported_args = []
+        checked = kwargs.pop('checked')
+
         for arg in args:
-            if self.has_argument_method(arg, kwargs):
+            if not self.has_argument_method(arg, kwargs):
+                msg = f'Compiler for {self.compiler.get_display_language()} does not support "{arg}"'
+                if checked == 'warn':
+                    mlog.warning(msg)
+                elif checked == 'require':
+                    raise mesonlib.MesonException(msg)
+            else:
                 supported_args.append(arg)
         return supported_args
 

mesonbuild/interpreter/interpreter.py

@@ -2332,7 +2332,7 @@ This will become a hard error in the future.''' % kwargs['input'], location=self
         self._add_global_arguments(node, self.build.global_link_args[kwargs['native']], args[0], kwargs)
 
     @typed_pos_args('add_project_arguments', varargs=str)
-    @typed_kwargs('add_global_arguments', _NATIVE_KW, _LANGUAGE_KW)
+    @typed_kwargs('add_project_arguments', _NATIVE_KW, _LANGUAGE_KW)
     def func_add_project_arguments(self, node: mparser.FunctionNode, args: T.Tuple[T.List[str]], kwargs: 'kwargs.FuncAddProjectArgs') -> None:
         self._add_project_arguments(node, self.build.projects_args[kwargs['native']], args[0], kwargs)
 

test cases/failing/115 compiler argument checking/meson.build

@@ -0,0 +1,4 @@
+project('compiler argument checking test', 'c')
+
+cc = meson.get_compiler('c')
+add_project_arguments(cc.get_supported_arguments('-meson-goober-arg-for-testing', checked : 'require'), language : 'c')

test cases/failing/115 compiler argument checking/test.json

@@ -0,0 +1,7 @@
+{
+  "stdout": [
+    {
+        "line": "test cases/failing/115 compiler argument checking/meson.build:4:0: ERROR: Compiler for C does not support \"-meson-goober-arg-for-testing\""
+    }
+  ]
+}