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Side by Side Diff: Source/bindings/scripts/v8_callback_interface.py

Issue 24156003: Revert IDL compiler build flow to Perl, rename 'deprecated' (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Rebase Created 7 years, 3 months ago
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1 # Copyright (C) 2013 Google Inc. All rights reserved.
2 #
3 # Redistribution and use in source and binary forms, with or without
4 # modification, are permitted provided that the following conditions are
5 # met:
6 #
7 # * Redistributions of source code must retain the above copyright
8 # notice, this list of conditions and the following disclaimer.
9 # * Redistributions in binary form must reproduce the above
10 # copyright notice, this list of conditions and the following disclaimer
11 # in the documentation and/or other materials provided with the
12 # distribution.
13 # * Neither the name of Google Inc. nor the names of its
14 # contributors may be used to endorse or promote products derived from
15 # this software without specific prior written permission.
16 #
17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 """Generate template values for a callback interface."""
30
31 from v8_types import cpp_type, cpp_value_to_v8_value, includes_for_type
32 from v8_utilities import v8_class_name
33
34 CALLBACK_INTERFACE_H_INCLUDES = set([
35 'bindings/v8/ActiveDOMCallback.h',
36 'bindings/v8/DOMWrapperWorld.h',
37 'bindings/v8/ScopedPersistent.h',
38 ])
39 CALLBACK_INTERFACE_CPP_INCLUDES = set([
40 'core/dom/ScriptExecutionContext.h',
41 'bindings/v8/V8Binding.h',
42 'bindings/v8/V8Callback.h',
43 'wtf/Assertions.h',
44 ])
45 CPP_TO_V8_CONVERSION = 'v8::Handle<v8::Value> {name}Handle = {cpp_value_to_v8_va lue};'
46
47
48 def cpp_to_v8_conversion(idl_type, name):
49 this_cpp_value_to_v8_value = cpp_value_to_v8_value(idl_type, name, 'isolate' , creation_context='v8::Handle<v8::Object>()')
50 return CPP_TO_V8_CONVERSION.format(name=name, cpp_value_to_v8_value=this_cpp _value_to_v8_value)
51
52
53 def generate_callback_interface(callback_interface):
54 cpp_includes = CALLBACK_INTERFACE_CPP_INCLUDES
55
56 def generate_method(operation):
57 method_contents, method_cpp_includes = generate_method_and_includes(oper ation)
58 cpp_includes.update(method_cpp_includes)
59 return method_contents
60
61 methods = [generate_method(operation) for operation in callback_interface.op erations]
62 template_contents = {
63 'cpp_class_name': callback_interface.name,
64 'v8_class_name': v8_class_name(callback_interface),
65 'header_includes': CALLBACK_INTERFACE_H_INCLUDES,
66 'cpp_includes': cpp_includes,
67 'methods': methods,
68 }
69 return template_contents
70
71
72 def generate_method_and_includes(operation):
73 if 'Custom' in operation.extended_attributes:
74 return generate_method_contents(operation), []
75 if operation.data_type != 'boolean':
76 raise Exception("We don't yet support callbacks that return non-boolean values.")
77 cpp_includes = includes_for_operation(operation)
78 return generate_method_contents(operation), cpp_includes
79
80
81 def includes_for_operation(operation):
82 includes = includes_for_type(operation.data_type)
83 for argument in operation.arguments:
84 includes.update(includes_for_type(argument.data_type))
85 return includes
86
87
88 def generate_method_contents(operation):
89 contents = {
90 'name': operation.name,
91 'return_cpp_type': cpp_type(operation.data_type, 'RefPtr'),
92 'custom': 'Custom' in operation.extended_attributes,
93 }
94 contents.update(generate_arguments_contents(operation.arguments))
95 return contents
96
97
98 def generate_arguments_contents(arguments):
99 def argument_declaration(argument):
100 return '%s %s' % (cpp_type(argument.data_type), argument.name)
101
102 def generate_argument(argument):
103 return {
104 'name': argument.name,
105 'cpp_to_v8_conversion': cpp_to_v8_conversion(argument.data_type, arg ument.name),
106 }
107
108 return {
109 'argument_declarations': [argument_declaration(argument) for argument in arguments],
110 'arguments': [generate_argument(argument) for argument in arguments],
111 'handles': ['%sHandle' % argument.name for argument in arguments],
112 }
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