Add script to auto-generate object-macros-undef.h

We were missing a few undefs there. Add a script to auto-generate
object-macros-undef.h from object-macros.h and update
object-macros-undef.h with the output of that script.

R=marja@chromium.org

Bug: v8:5402, v8:8238
Change-Id: I6917940dcbfdf68039a25dc7fb8c219fe55adb10
Reviewed-on: https://chromium-review.googlesource.com/c/1345991Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57728}

src/objects/object-macros-undef.h

@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// Generate this file using the update-object-macros-undef.py script.
+
 // PRESUBMIT_INTENTIONALLY_MISSING_INCLUDE_GUARD
 
 #undef OBJECT_CONSTRUCTORS
@@ -11,6 +13,9 @@
 #undef DECL_PRIMITIVE_ACCESSORS
 #undef DECL_BOOLEAN_ACCESSORS
 #undef DECL_INT_ACCESSORS
+#undef DECL_INT32_ACCESSORS
+#undef DECL_UINT16_ACCESSORS
+#undef DECL_UINT8_ACCESSORS
 #undef DECL_ACCESSORS
 #undef DECL_ACCESSORS2
 #undef DECL_CAST
@@ -18,12 +23,19 @@
 #undef CAST_ACCESSOR
 #undef CAST_ACCESSOR2
 #undef INT_ACCESSORS
+#undef INT32_ACCESSORS
+#undef RELAXED_INT32_ACCESSORS
+#undef UINT16_ACCESSORS
+#undef UINT8_ACCESSORS
 #undef ACCESSORS_CHECKED2
 #undef ACCESSORS_CHECKED
 #undef ACCESSORS
 #undef ACCESSORS2
-#undef WEAK_ACCESSORS_CHECKED
+#undef SYNCHRONIZED_ACCESSORS_CHECKED2
+#undef SYNCHRONIZED_ACCESSORS_CHECKED
+#undef SYNCHRONIZED_ACCESSORS
 #undef WEAK_ACCESSORS_CHECKED2
+#undef WEAK_ACCESSORS_CHECKED
 #undef WEAK_ACCESSORS
 #undef SMI_ACCESSORS_CHECKED
 #undef SMI_ACCESSORS
@@ -39,6 +51,7 @@
 #undef READ_WEAK_FIELD
 #undef ACQUIRE_READ_FIELD
 #undef RELAXED_READ_FIELD
+#undef RELAXED_READ_WEAK_FIELD
 #undef WRITE_FIELD
 #undef WRITE_WEAK_FIELD
 #undef RELEASE_WRITE_FIELD
@@ -51,15 +64,19 @@
 #undef WRITE_DOUBLE_FIELD
 #undef READ_INT_FIELD
 #undef WRITE_INT_FIELD
-#undef READ_INTPTR_FIELD
-#undef WRITE_INTPTR_FIELD
+#undef ACQUIRE_READ_INTPTR_FIELD
 #undef RELAXED_READ_INTPTR_FIELD
+#undef READ_INTPTR_FIELD
+#undef RELEASE_WRITE_INTPTR_FIELD
 #undef RELAXED_WRITE_INTPTR_FIELD
+#undef WRITE_INTPTR_FIELD
 #undef READ_UINTPTR_FIELD
 #undef WRITE_UINTPTR_FIELD
 #undef READ_UINT8_FIELD
 #undef WRITE_UINT8_FIELD
+#undef RELAXED_WRITE_INT8_FIELD
 #undef READ_INT8_FIELD
+#undef RELAXED_READ_INT8_FIELD
 #undef WRITE_INT8_FIELD
 #undef READ_UINT16_FIELD
 #undef WRITE_UINT16_FIELD
@@ -68,7 +85,9 @@
 #undef READ_UINT32_FIELD
 #undef WRITE_UINT32_FIELD
 #undef READ_INT32_FIELD
+#undef RELAXED_READ_INT32_FIELD
 #undef WRITE_INT32_FIELD
+#undef RELAXED_WRITE_INT32_FIELD
 #undef READ_FLOAT_FIELD
 #undef WRITE_FLOAT_FIELD
 #undef READ_UINT64_FIELD

tools/update-object-macros-undef.py

+#!/usr/bin/env python3
+# Copyright 2018 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+# vim:fenc=utf-8:shiftwidth=2:tabstop=2:softtabstop=2:extandtab
+
+"""
+Generate object-macros-undef.h from object-macros.h.
+"""
+
+import os.path
+import re
+import sys
+
+INPUT = 'src/objects/object-macros.h'
+OUTPUT = 'src/objects/object-macros-undef.h'
+HEADER = """// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Generate this file using the {} script.
+
+// PRESUBMIT_INTENTIONALLY_MISSING_INCLUDE_GUARD
+
+""".format(os.path.basename(__file__))
+
+
+def main():
+  if not os.path.isfile(INPUT):
+    sys.exit("Input file {} does not exist; run this script in a v8 checkout."
+             .format(INPUT))
+  if not os.path.isfile(OUTPUT):
+    sys.exit("Output file {} does not exist; run this script in a v8 checkout."
+             .format(OUTPUT))
+  regexp = re.compile('^#define (\w+)')
+  seen = set()
+  with open(INPUT, 'r') as infile, open(OUTPUT, 'w') as outfile:
+    outfile.write(HEADER)
+    for line in infile:
+      match = regexp.match(line)
+      if match and match.group(1) not in seen:
+        seen.add(match.group(1))
+        outfile.write('#undef {}\n'.format(match.group(1)))
+
+if __name__ == "__main__":
+  main()