1 files changed, 49 insertions, 0 deletions
diff --git a/third_party/rust/fuchsia-zircon/tools/gen_status.py b/third_party/rust/fuchsia-zircon/tools/gen_status.py
new file mode 100755
index 0000000000..c2a954bdb1
--- /dev/null
+++ b/third_party/rust/fuchsia-zircon/tools/gen_status.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+
+# Copyright 2016 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# A tool for autogenerating the mapping between Status and zx_status_t
+# Usage: python gen_status.py zircon/system/public/zircon/errors.h {sys,enum,match}
+import re
+import sys
+
+status_re = re.compile('#define\s+(ZX_\w+)\s+\((\-?\d+)\)$')
+
+def parse(in_filename):
+    result = []
+    for line in file(in_filename):
+        m = status_re.match(line)
+        if m:
+            result.append((m.group(1), int(m.group(2))))
+    return result
+
+def to_snake_case(name):
+    result = []
+    for element in name.split('_'):
+        result.append(element[0] + element[1:].lower())
+    return ''.join(result)
+
+def out(style, l):
+    print('// Auto-generated using tools/gen_status.py')
+    longest = max(len(name) for (name, num) in l)
+    if style == 'sys':
+        for (name, num) in l:
+            print('pub const %s : zx_status_t = %d;' % (name.ljust(longest), num))
+    if style == 'enum':
+        print('pub enum Status {')
+        for (name, num) in l:
+            print('    %s = %d,' % (to_snake_case(name[3:]), num))
+        print('');
+        print('    /// Any zx_status_t not in the set above will map to the following:')
+        print('    UnknownOther = -32768,')
+        print('}')
+    if style == 'match':
+        for (name, num) in l:
+            print('            sys::%s => Status::%s,' % (name, to_snake_case(name[3:])))
+        print('            _ => Status::UnknownOther,')
+
+
+l = parse(sys.argv[1])
+out(sys.argv[2], l)