Initial implementation of WebUI generator (WUG) toolkit.

components/wug/generator/export_h.py

Index: components/wug/generator/export_h.py
diff --git a/components/wug/generator/export_h.py b/components/wug/generator/export_h.py
new file mode 100644
index 0000000000000000000000000000000000000000..3c4eceb90e70cfe3ac6fcfef023327bfb2df3839
--- /dev/null
+++ b/components/wug/generator/export_h.py
@@ -0,0 +1,66 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import datetime
+import util
+import os
+
+H_FILE_TEMPLATE = \
+"""// Copyright %(year)d The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// NOTE: this file is generated from "%(source)s". Do not modify directly.
+
+#ifndef %(include_guard)s
+#define %(include_guard)s
+
+#if defined(COMPONENT_BUILD)
+
+#if defined(WIN32)
+
+#if defined(%(impl_macro)s)
+#define %(export_macro)s __declspec(dllexport)
+#else
+#define %(export_macro)s __declspec(dllimport)
+#endif  // defined(%(impl_macro)s)
+
+#else  // defined(WIN32)
+
+#if defined(%(impl_macro)s)
+#define %(export_macro)s __attribute__((visibility("default")))
+#else
+#define %(export_macro)s
+#endif  // defined(%(impl_macro)s)
+
+#endif  // defined(WIN32)
+
+#else  // defined(COMPONENT_BUILD)
+
+#define %(export_macro)s
+
+#endif
+
+#endif  // %(include_guard)s
+"""
+
+def GenHFile(declaration):
+  subs = {}
+  subs['year'] = datetime.date.today().year
+  subs['source'] = declaration.path
+  subs['include_guard'] = util.PathToIncludeGuard(
+                              declaration.export_h_include_path)
+  subs['export_macro'] = declaration.component_export_macro
+  subs['impl_macro'] = declaration.component_impl_macro
+  return H_FILE_TEMPLATE % subs
+
+def ListOutputs(declaration, destination):
+  dirname = os.path.join(destination, os.path.dirname(declaration.path))
+  h_file_path = os.path.join(dirname, declaration.export_h_name)
+  return [h_file_path]
+
+def Gen(declaration, destination):
+  h_file_path = ListOutputs(declaration, destination)[0]
+  util.CreateDirIfNotExists(os.path.dirname(h_file_path))
+  open(h_file_path, 'w').write(GenHFile(declaration))