compilers: change get_argument_syntax to static method

This allows to get this fixed value before the class is initialized.

Signed-off-by: Kacper Michajłow <kasper93@gmail.com>

mesonbuild/compilers/asm.py

@@ -158,7 +158,8 @@ class MasmCompiler(Compiler):
     def get_compile_only_args(self) -> T.List[str]:
         return ['/c']
 
-    def get_argument_syntax(self) -> str:
+    @staticmethod
+    def get_argument_syntax() -> str:
         return 'msvc'
 
     def needs_static_linker(self) -> bool:

mesonbuild/compilers/compilers.py

@@ -963,7 +963,8 @@ class Compiler(HoldableObject, metaclass=abc.ABCMeta):
     def get_pie_link_args(self) -> T.List[str]:
         return self.linker.get_pie_args()
 
-    def get_argument_syntax(self) -> str:
+    @staticmethod
+    def get_argument_syntax() -> str:
         """Returns the argument family type.
 
         Compilers fall into families if they try to emulate the command line

mesonbuild/compilers/mixins/gnu.py

@@ -420,7 +420,8 @@ class GnuLikeCompiler(Compiler, metaclass=abc.ABCMeta):
         # For other targets, discard the .def file.
         return []
 
-    def get_argument_syntax(self) -> str:
+    @staticmethod
+    def get_argument_syntax() -> str:
         return 'gcc'
 
     def get_profile_generate_args(self) -> T.List[str]:

mesonbuild/compilers/mixins/visualstudio.py

@@ -362,7 +362,8 @@ class VisualStudioLikeCompiler(Compiler, metaclass=abc.ABCMeta):
         # false without compiling anything
         return name in {'dllimport', 'dllexport'}, False
 
-    def get_argument_syntax(self) -> str:
+    @staticmethod
+    def get_argument_syntax() -> str:
         return 'msvc'
 
     def symbols_have_underscore_prefix(self, env: 'Environment') -> bool: