[libcxx-commits] [libcxx] [libc++] Implements the new FTM header test generator. (PR #134542)

[Louis Dionne via libcxx-commits]

================
@@ -2296,24 +2424,160 @@ def version_header(self) -> str:
             )
         )
 
+    def header_ftm(self, header: str) -> Dict[Std, List[Dict[Ftm, FtmHeaderTest]]]:
+        """Generates the FTM information for a `header`."""
+
+        result = dict()
+        for std in self.std_dialects:
+            result[get_std_number(std)] = list()
+
+        for ftm, values in self.standard_ftms.items():
+            if not header in self.ftm_metadata[ftm].headers:
+                continue
+
+            last_value = None
+            last_entry = None
+
+            for std in self.std_dialects:
+                if not std in values.keys():
+                    result[get_std_number(std)].append(dict({ftm: None}))
----------------
ldionne wrote:

```suggestion
                    result[get_std_number(std)].append({ftm: None})
```

https://github.com/llvm/llvm-project/pull/134542