compilers: refactor sanity checking code

The goal is to reduce code duplication, and allow each language to
implement as little as possible to get good checking. The main
motivation is that half of the checks are fragile, as they add the work
directory to the paths of the generated files they want to use. This
works when run inside mesonmain because we always have an absolute build
directory, but when put into run_project_tests.py it doesn't work
because that gives a relative build directory.

1 files changed, 2 insertions, 3 deletions

diff --git a/mesonbuild/compilers/cpp.py b/mesonbuild/compilers/cpp.py
index fa032ec79..8da100483 100644
--- a/mesonbuild/compilers/cpp.py
+++ b/mesonbuild/compilers/cpp.py
@@ -86,9 +86,8 @@ class CPPCompiler(CLikeCompiler, Compiler):
     def get_no_stdlib_link_args(self) -> T.List[str]:
         return ['-nostdlib++']
 
-    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
-        code = 'class breakCCompiler;int main(void) { return 0; }\n'
-        return self._sanity_check_impl(work_dir, environment, 'sanitycheckcpp.cc', code)
+    def _sanity_check_source_code(self) -> str:
+        return 'class breakCCompiler;int main(void) { return 0; }\n'
 
     def get_compiler_check_args(self, mode: CompileCheckMode) -> T.List[str]:
         # -fpermissive allows non-conforming code to compile which is necessary