compilers/rust: Add support for clippy

Clippy is a compiler wrapper for rust that provides an extra layer of
linting. It's quite popular, but unfortunately doesn't provide the
output of the compiler that it's wrapping in it's output, so we don't
detect that clippy is rustc. This small patch adds a new compiler class
(that is the Rustc class with a different id) and the necessary logic to
detect that clippy is in fact rustc)

Fixes: #8767

1 files changed, 17 insertions, 0 deletions

diff --git a/mesonbuild/compilers/rust.py b/mesonbuild/compilers/rust.py
index 2337ceb..9423b2d 100644
--- a/mesonbuild/compilers/rust.py
+++ b/mesonbuild/compilers/rust.py
@@ -196,3 +196,20 @@ class RustCompiler(Compiler):
         # Rustc currently has no way to toggle this, it's controlled by whether
         # pic is on by rustc
         return []
+
+
+class ClippyRustCompiler(RustCompiler):
+
+    """Clippy is a linter that wraps Rustc.
+
+    This just provides us a different id
+    """
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo',
+                 exe_wrapper: T.Optional['ExternalProgram'] = None,
+                 full_version: T.Optional[str] = None,
+                 linker: T.Optional['DynamicLinker'] = None):
+        super().__init__(exelist, version, for_machine, is_cross, info,
+                         exe_wrapper, full_version, linker)
+        self.id = 'clippy-driver rustc'