fix: add C comments to bindings

ast-mapper.py

@@ -44,6 +44,25 @@
                     for p in func.get("inner", [])
                     if p.get("kind") == "ParmVarDecl" and p.get("name") is not None
                 ],
+                [
+                    "\n".join(
+                        [
+                            text.get("text", "")
+                            for text in para.get("inner", [])
+                            if text.get("kind") == "TextComment"
+                        ]
+                    )
+                    for para in (
+                        next(
+                            (
+                                c.get("inner", [])
+                                for c in func.get("inner", [])
+                                if c.get("kind") == "FullComment"
+                            ),
+                            [],
+                        )
+                    )
+                ],
             )
             for func in ast["inner"]
             if func["kind"] == "FunctionDecl"
@@ -55,15 +74,21 @@
     out.write(prelim_header)
     for file, funcs in functions.items():
         out.write(f'#include "pdfium/{file}"\n')
-        for name, type, params in funcs:
-            out.write(
-                f"FFI_PLUGIN_EXPORT {type} PDFIUM_{name}({','.join(map(lambda p : f"{p[1]} {p[0]}", params))});\n"
+        for name, type, params, comment in funcs:
+            out.writelines(
+                [
+                    "".join(
+                        "".join(map(lambda i: f"// {i}\n", line))
+                        for line in (c.split("\n") for c in comment)
+                    ),
+                    f"FFI_PLUGIN_EXPORT {type} PDFIUM_{name}({','.join(map(lambda p : f"{p[1]} {p[0]}", params))});\n",
+                ]
             )
 
 with open(os.path.join("./", "src", "flutter_pdfium.c"), "w") as out:
     out.write(prelim_impl)
     for file, funcs in functions.items():
-        for name, type, params in funcs:
+        for name, type, params, _ in funcs:
             out.writelines(
                 [
                     f"FFI_PLUGIN_EXPORT {type} PDFIUM_{name}({','.join(map(lambda p : f"{p[1]} {p[0]}", params))}){{\n",

justfile

@@ -16,7 +16,7 @@ version := "6276"
     mkdir -p ./.tmp/ast
     for header in $(find ./.tmp/release/include -name "*.h" -maxdepth 1 -type f); do
         echo "Create AST for $header"
-        clang -Xclang -ast-dump=json -fsyntax-only $header > ./.tmp/ast/$(basename $header).json
+        clang -Xclang -ast-dump=json -fsyntax-only -fparse-all-comments $header > ./.tmp/ast/$(basename $header).json
     done
 
 @create-mapping: