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Side by Side Diff: core/scripts/in_generator.py

Issue 15685002: IDL roll. (Closed) Base URL: http://dart.googlecode.com/svn/third_party/WebCore/
Patch Set: Created 7 years, 7 months ago
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1 # Copyright (C) 2013 Google Inc. All rights reserved. 1 # Copyright (C) 2013 Google Inc. All rights reserved.
2 # 2 #
3 # Redistribution and use in source and binary forms, with or without 3 # Redistribution and use in source and binary forms, with or without
4 # modification, are permitted provided that the following conditions are 4 # modification, are permitted provided that the following conditions are
5 # met: 5 # met:
6 # 6 #
7 # * Redistributions of source code must retain the above copyright 7 # * Redistributions of source code must retain the above copyright
8 # notice, this list of conditions and the following disclaimer. 8 # notice, this list of conditions and the following disclaimer.
9 # * Redistributions in binary form must reproduce the above 9 # * Redistributions in binary form must reproduce the above
10 # copyright notice, this list of conditions and the following disclaimer 10 # copyright notice, this list of conditions and the following disclaimer
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42 self.in_file = InFile.load_from_path(in_file_path, self.defaults, self.d efault_parameters) 42 self.in_file = InFile.load_from_path(in_file_path, self.defaults, self.d efault_parameters)
43 43
44 # Subclasses should override. 44 # Subclasses should override.
45 def generate_header(self): 45 def generate_header(self):
46 raise NotImplementedError 46 raise NotImplementedError
47 47
48 # Subclasses should override. 48 # Subclasses should override.
49 def generate_implementation(self): 49 def generate_implementation(self):
50 raise NotImplementedError 50 raise NotImplementedError
51 51
52 def wrap_with_condition(self, string, condition):
53 if not condition:
54 return string
55 return "#if ENABLE(%(condition)s)\n%(string)s\n#endif" % { 'condition' : condition, 'string' : string }
56
52 def _forcibly_create_text_file_at_path_with_contents(self, file_path, conten ts): 57 def _forcibly_create_text_file_at_path_with_contents(self, file_path, conten ts):
53 # FIXME: This method can be made less force-full anytime after 6/1/2013. 58 # FIXME: This method can be made less force-full anytime after 6/1/2013.
54 # A gyp error was briefly checked into the tree, causing 59 # A gyp error was briefly checked into the tree, causing
55 # a directory to have been generated in place of one of 60 # a directory to have been generated in place of one of
56 # our output files. Clean up after that error so that 61 # our output files. Clean up after that error so that
57 # all users don't need to clobber their output directories. 62 # all users don't need to clobber their output directories.
58 shutil.rmtree(file_path, ignore_errors=True) 63 shutil.rmtree(file_path, ignore_errors=True)
59 # The build system should ensure our output directory exists, but just i n case. 64 # The build system should ensure our output directory exists, but just i n case.
60 directory = os.path.dirname(file_path) 65 directory = os.path.dirname(file_path)
61 if not os.path.exists(directory): 66 if not os.path.exists(directory):
62 os.makedirs(directory) 67 os.makedirs(directory)
63 68
64 with open(file_path, "w") as file_to_write: 69 with open(file_path, "w") as file_to_write:
65 file_to_write.write(contents) 70 file_to_write.write(contents)
66 71
67 def write_header(self, output_dir): 72 def write_header(self, output_dir):
68 header_path = os.path.join(output_dir, self.class_name + ".h") 73 contents = self.generate_header()
69 self._forcibly_create_text_file_at_path_with_contents(header_path, self. generate_header()) 74 if not contents:
75 return
76 path = os.path.join(output_dir, self.class_name + ".h")
77 self._forcibly_create_text_file_at_path_with_contents(path, contents)
70 78
71 def write_implmentation(self, output_dir): 79 def write_implmentation(self, output_dir):
72 implmentation_path = os.path.join(output_dir, self.class_name + ".cpp") 80 contents = self.generate_implementation()
73 self._forcibly_create_text_file_at_path_with_contents(implmentation_path , self.generate_implementation()) 81 if not contents:
82 return
83 path = os.path.join(output_dir, self.class_name + ".cpp")
84 self._forcibly_create_text_file_at_path_with_contents(path, contents)
74 85
75 86
76 class Maker(object): 87 class Maker(object):
77 def __init__(self, writer_class): 88 def __init__(self, writer_class):
78 self._writer_class = writer_class 89 self._writer_class = writer_class
79 90
80 def main(self, argv): 91 def main(self, argv):
81 script_name = os.path.basename(argv[0]) 92 script_name = os.path.basename(argv[0])
82 args = argv[1:] 93 args = argv[1:]
83 if len(args) < 1: 94 if len(args) < 1:
84 print "USAGE: %i INPUT_FILE [OUTPUT_DIRECTORY]" % script_name 95 print "USAGE: %i INPUT_FILE [OUTPUT_DIRECTORY]" % script_name
85 exit(1) 96 exit(1)
86 output_dir = args[1] if len(args) > 1 else os.getcwd() 97 output_dir = args[1] if len(args) > 1 else os.getcwd()
87 98
88 writer = self._writer_class(args[0]) 99 writer = self._writer_class(args[0])
89 writer.write_header(output_dir) 100 writer.write_header(output_dir)
90 writer.write_implmentation(output_dir) 101 writer.write_implmentation(output_dir)
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