Blink IDL roll.

core/scripts/in_generator.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 14 matching lines @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import os.path
 import shlex
 import shutil
 import optparse
 
 from in_file import InFile
-import template_expander
 
 
 class Writer(object):
     # Subclasses should override.
     class_name = None
     defaults = None
     valid_values = None
     default_parameters = None
 
     def __init__(self, in_files, enabled_conditions):
         if isinstance(in_files, basestring):
             in_files = [in_files]
         self.in_file = InFile.load_from_files(in_files, self.defaults, self.valid_values, self.default_parameters)
         self._enabled_conditions = enabled_conditions
-
-    # Subclasses should override.
-    def generate_header(self):
-        return ''
-
-    # Subclasses should override.
-    def generate_interfaces_header(self):
-        return ''
-
-    # Subclasses should override.
-    def generate_headers_header(self):
-        return ''
-
-    # Subclasses should override.
-    def generate_implementation(self):
-        return ''
-
-    # Subclasses should override.
-    def generate_idl(self):
-        return ''
+        self._outputs = {}  # file_name -> generator
 
     def wrap_with_condition(self, string, condition):
         if not condition:
             return string
         return "#if ENABLE(%(condition)s)\n%(string)s\n#endif" % { 'condition' : condition, 'string' : string }
 
     def _forcibly_create_text_file_at_path_with_contents(self, file_path, contents):
         # FIXME: This method can be made less force-full anytime after 6/1/2013.
         # A gyp error was briefly checked into the tree, causing
         # a directory to have been generated in place of one of
         # our output files.  Clean up after that error so that
         # all users don't need to clobber their output directories.
         shutil.rmtree(file_path, ignore_errors=True)
         # The build system should ensure our output directory exists, but just in case.
         directory = os.path.dirname(file_path)
         if not os.path.exists(directory):
             os.makedirs(directory)
 
         with open(file_path, "w") as file_to_write:
             file_to_write.write(contents)
 
-    def _write_file(self, output_dir, generator, file_name):
-        contents = generator()
-        if type(contents) is dict:
-            contents = template_expander.apply_template(file_name + ".tmpl", contents)
-        if not contents:
-            return
+    def _write_file(self, output_dir, contents, file_name):
         path = os.path.join(output_dir, file_name)
         self._forcibly_create_text_file_at_path_with_contents(path, contents)
 
-    def write_header(self, output_dir):
-        self._write_file(output_dir, self.generate_header, self.class_name + '.h')
-
-    def write_headers_header(self, output_dir):
-        self._write_file(output_dir, self.generate_headers_header, self.class_name + 'Headers.h')
-
-    def write_interfaces_header(self, output_dir):
-        self._write_file(output_dir, self.generate_interfaces_header, self.class_name + 'Interfaces.h')
-
-    def write_implmentation(self, output_dir):
-        self._write_file(output_dir, self.generate_implementation, self.class_name + '.cpp')
-
-    def write_idl(self, output_dir):
-        self._write_file(output_dir, self.generate_idl, self.class_name + '.idl')
+    def write_files(self, output_dir):
+        for file_name, generator in self._outputs.items():
+            self._write_file(output_dir, generator(), file_name)
 
 
 class Maker(object):
     def __init__(self, writer_class):
         self._writer_class = writer_class
 
     def _enabled_conditions_from_defines(self, defines_arg_string):
         if not defines_arg_string:
             return []
 
@@ skipping 21 matching lines @@
             exit(1)
 
         parser = optparse.OptionParser()
         parser.add_option("--defines")
         parser.add_option("--output_dir", default=os.getcwd())
         (options, args) = parser.parse_args()
 
         enabled_conditions = self._enabled_conditions_from_defines(options.defines)
 
         writer = self._writer_class(args, enabled_conditions)
-        writer.write_header(options.output_dir)
-        writer.write_headers_header(options.output_dir)
-        writer.write_interfaces_header(options.output_dir)
-        writer.write_implmentation(options.output_dir)
-        writer.write_idl(options.output_dir)
+        writer.write_files(options.output_dir)