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| 1 #!/usr/bin/env python | |
| 2 # Copyright 2013 The Chromium Authors. All rights reserved. | |
| 3 # Use of this source code is governed by a BSD-style license that can be | |
| 4 # found in the LICENSE file. | |
| 5 | |
| 6 """Translate parse tree to Mojom IR""" | |
| 7 | |
| 8 | |
| 9 import os | |
| 10 import sys | |
| 11 | |
| 12 | |
| 13 def MapTree(func, tree, name): | |
| 14 if not tree: | |
| 15 return [] | |
| 16 return [func(subtree) for subtree in tree if subtree[0] == name] | |
| 17 | |
| 18 def MapKind(kind): | |
| 19 map_to_kind = { 'bool': 'b', | |
| 20 'int8': 'i8', | |
| 21 'int16': 'i16', | |
| 22 'int32': 'i32', | |
| 23 'int64': 'i64', | |
| 24 'uint8': 'u8', | |
| 25 'uint16': 'u16', | |
| 26 'uint32': 'u32', | |
| 27 'uint64': 'u64', | |
| 28 'float': 'f', | |
| 29 'double': 'd', | |
| 30 'string': 's', | |
| 31 'handle': 'h', | |
| 32 'handle<data_pipe_consumer>': 'h:d:c', | |
| 33 'handle<data_pipe_producer>': 'h:d:p', | |
| 34 'handle<message_pipe>': 'h:m', | |
| 35 'handle<shared_buffer>': 'h:s'} | |
| 36 if kind.endswith('[]'): | |
| 37 return 'a:' + MapKind(kind[0:len(kind)-2]) | |
| 38 if kind in map_to_kind: | |
| 39 return map_to_kind[kind] | |
| 40 return 'x:' + kind | |
| 41 | |
| 42 def MapOrdinal(ordinal): | |
| 43 if ordinal == None: | |
| 44 return None | |
| 45 return int(ordinal[1:]) # Strip leading '@' | |
| 46 | |
| 47 def GetAttribute(attributes, name): | |
| 48 out = None | |
| 49 if attributes: | |
| 50 for attribute in attributes: | |
| 51 if attribute[0] == 'ATTRIBUTE' and attribute[1] == name: | |
| 52 out = attribute[2] | |
| 53 return out | |
| 54 | |
| 55 def MapField(tree): | |
| 56 return {'name': tree[2], | |
| 57 'kind': MapKind(tree[1]), | |
| 58 'ordinal': MapOrdinal(tree[3]), | |
| 59 'default': tree[4]} | |
| 60 | |
| 61 def MapParameter(tree): | |
| 62 return {'name': tree[2], | |
| 63 'kind': MapKind(tree[1]), | |
| 64 'ordinal': MapOrdinal(tree[3])} | |
| 65 | |
| 66 def MapMethod(tree): | |
| 67 method = {'name': tree[1], | |
| 68 'parameters': MapTree(MapParameter, tree[2], 'PARAM'), | |
| 69 'ordinal': MapOrdinal(tree[3])} | |
| 70 if tree[4] != None: | |
| 71 method['response_parameters'] = MapTree(MapParameter, tree[4], 'PARAM') | |
| 72 return method | |
| 73 | |
| 74 def MapEnumField(tree): | |
| 75 return {'name': tree[1], | |
| 76 'value': tree[2]} | |
| 77 | |
| 78 def MapStruct(tree): | |
| 79 struct = {} | |
| 80 struct['name'] = tree[1] | |
| 81 # TODO(darin): Add support for |attributes| | |
| 82 #struct['attributes'] = MapAttributes(tree[2]) | |
| 83 struct['fields'] = MapTree(MapField, tree[3], 'FIELD') | |
| 84 struct['enums'] = MapTree(MapEnum, tree[3], 'ENUM') | |
| 85 return struct | |
| 86 | |
| 87 def MapInterface(tree): | |
| 88 interface = {} | |
| 89 interface['name'] = tree[1] | |
| 90 interface['peer'] = GetAttribute(tree[2], 'Peer') | |
| 91 interface['methods'] = MapTree(MapMethod, tree[3], 'METHOD') | |
| 92 interface['enums'] = MapTree(MapEnum, tree[3], 'ENUM') | |
| 93 return interface | |
| 94 | |
| 95 def MapEnum(tree): | |
| 96 enum = {} | |
| 97 enum['name'] = tree[1] | |
| 98 enum['fields'] = MapTree(MapEnumField, tree[2], 'ENUM_FIELD') | |
| 99 return enum | |
| 100 | |
| 101 def MapModule(tree, name): | |
| 102 mojom = {} | |
| 103 mojom['name'] = name | |
| 104 mojom['namespace'] = tree[1] | |
| 105 mojom['structs'] = MapTree(MapStruct, tree[2], 'STRUCT') | |
| 106 mojom['interfaces'] = MapTree(MapInterface, tree[2], 'INTERFACE') | |
| 107 mojom['enums'] = MapTree(MapEnum, tree[2], 'ENUM') | |
| 108 return mojom | |
| 109 | |
| 110 def MapImport(tree): | |
| 111 import_item = {} | |
| 112 import_item['filename'] = tree[1] | |
| 113 return import_item | |
| 114 | |
| 115 | |
| 116 class MojomBuilder(): | |
| 117 def __init__(self): | |
| 118 self.mojom = {} | |
| 119 | |
| 120 def Build(self, tree, name): | |
| 121 modules = [MapModule(item, name) | |
| 122 for item in tree if item[0] == 'MODULE'] | |
| 123 if len(modules) != 1: | |
| 124 raise Exception('A mojom file must contain exactly 1 module.') | |
| 125 self.mojom = modules[0] | |
| 126 self.mojom['imports'] = MapTree(MapImport, tree, 'IMPORT') | |
| 127 return self.mojom | |
| 128 | |
| 129 | |
| 130 def Translate(tree, name): | |
| 131 return MojomBuilder().Build(tree, name) | |
| 132 | |
| 133 | |
| 134 def Main(): | |
| 135 if len(sys.argv) < 2: | |
| 136 print("usage: %s filename" % (sys.argv[0])) | |
| 137 sys.exit(1) | |
| 138 tree = eval(open(sys.argv[1]).read()) | |
| 139 name = os.path.splitext(os.path.basename(sys.argv[1]))[0] | |
| 140 result = Translate(tree, name) | |
| 141 print(result) | |
| 142 | |
| 143 | |
| 144 if __name__ == '__main__': | |
| 145 Main() | |
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Chromium Code Reviews
Issue 226263002:
Mojo: Move mojo/public/bindings to mojo/public/tools/bindings. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src