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Side by Side Diff: mojo/public/tools/bindings/generators/mojom_go_generator.py

Issue 1539673003: Generate Mojom Types in Dart (Take 2) (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Move and Standardize Mojom Type Functions Created 4 years, 10 months ago
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1 # Copyright 2015 The Chromium Authors. All rights reserved. 1 # Copyright 2015 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be 2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file. 3 # found in the LICENSE file.
4 4
5 '''Generates Go source files from a mojom.Module.''' 5 '''Generates Go source files from a mojom.Module.'''
6 6
7 from itertools import chain 7 from itertools import chain
8 import os 8 import os
9 import re 9 import re
10 10
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132 return name[0].lower() + name[1:] 132 return name[0].lower() + name[1:]
133 133
134 # Returns full name of an imported element. 134 # Returns full name of an imported element.
135 # If the |element| is not imported returns formatted name of it. 135 # If the |element| is not imported returns formatted name of it.
136 # |element| should have attr 'name'. |exported| argument is used to make 136 # |element| should have attr 'name'. |exported| argument is used to make
137 # |FormatName()| calls only. 137 # |FormatName()| calls only.
138 def GetFullName(element, exported=True): 138 def GetFullName(element, exported=True):
139 return GetQualifiedName( 139 return GetQualifiedName(
140 element.name, GetPackageNameForElement(element), exported) 140 element.name, GetPackageNameForElement(element), exported)
141 141
142 # Returns a string of the form package.path.TypeName - the full identifier
143 # for an element.
144 def GetFullIdentifier(element, exported=True):
145 return '%s.%s' % (element.module.namespace, GetNameForElement(element))
146
147 def GetUnqualifiedNameForElement(element, exported=True): 142 def GetUnqualifiedNameForElement(element, exported=True):
148 return FormatName(element.name, exported) 143 return FormatName(element.name, exported)
149 144
150 # Returns a name for nested elements like enum field or constant. 145 # Returns a name for nested elements like enum field or constant.
151 # The returned name consists of camel-cased parts separated by '_'. 146 # The returned name consists of camel-cased parts separated by '_'.
152 def GetNameForNestedElement(element): 147 def GetNameForNestedElement(element):
153 if element.parent_kind: 148 if element.parent_kind:
154 return "%s_%s" % (GetNameForElement(element.parent_kind), 149 return "%s_%s" % (GetNameForElement(element.parent_kind),
155 FormatName(element.name)) 150 FormatName(element.name))
156 return GetFullName(element) 151 return GetFullName(element)
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300 path = GetPackagePath(imported['module']) 295 path = GetPackagePath(imported['module'])
301 if path in imports: 296 if path in imports:
302 return 297 return
303 name = GetPackageName(imported['module']) 298 name = GetPackageName(imported['module'])
304 while name in imports.values(): # This avoids repeated names. 299 while name in imports.values(): # This avoids repeated names.
305 name += '_' 300 name += '_'
306 imported['go_name'] = name 301 imported['go_name'] = name
307 imports[path] = name 302 imports[path] = name
308 mojom_imports[path] = name 303 mojom_imports[path] = name
309 304
310 def GetIdentifier(kind):
311 """Use the kind's module to determine the package and name."""
312 # Note: InterfaceRequest's should use the Interface inside them.
313 if hasattr(kind, 'module'):
314 package = GetPackageName(kind.module)
315 name = kind.name
316 elif mojom.IsInterfaceRequestKind(kind):
317 package = GetPackageName(kind.kind.module)
318 name = kind.kind.name
319 else:
320 # These kinds (e.g., simple kinds, maps, and arrays) lack identifiers.
321 raise Exception('Unexpected kind: %s' % kind)
322
323 return '%s_%s' % (package, name)
324
325 # Get the mojom type's identifier suffix.
326 def GetMojomTypeIdentifier(kind):
327 # Since this should be unique, it is based on the type's identifier.
328 return "%s__" % GetIdentifier(kind)
329
330 class Generator(generator.Generator): 305 class Generator(generator.Generator):
331 go_filters = { 306 go_filters = {
332 'array': lambda kind: mojom.Array(kind), 307 'array': lambda kind: mojom.Array(kind),
333 'bit_size': GetBitSize, 308 'bit_size': GetBitSize,
334 'decode_suffix': DecodeSuffix, 309 'decode_suffix': DecodeSuffix,
335 'encode_suffix': EncodeSuffix, 310 'encode_suffix': EncodeSuffix,
336 'go_type': GetGoType, 311 'go_type': GetGoType,
337 'expression_to_text': ExpressionToText, 312 'expression_to_text': ExpressionToText,
338 'has_response': lambda method: method.response_parameters is not None, 313 'has_response': lambda method: method.response_parameters is not None,
339 'identifier': GetIdentifier,
340 'is_array': mojom.IsArrayKind, 314 'is_array': mojom.IsArrayKind,
341 'is_enum': mojom.IsEnumKind, 315 'is_enum': mojom.IsEnumKind,
342 'is_handle': mojom.IsAnyHandleKind, 316 'is_handle': mojom.IsAnyHandleKind,
343 'is_interface': mojom.IsInterfaceKind, 317 'is_interface': mojom.IsInterfaceKind,
344 'is_interface_request': mojom.IsInterfaceRequestKind, 318 'is_interface_request': mojom.IsInterfaceRequestKind,
345 'is_map': mojom.IsMapKind, 319 'is_map': mojom.IsMapKind,
346 'is_none_or_empty': lambda array: array is None or len(array) == 0, 320 'is_none_or_empty': lambda array: array is None or len(array) == 0,
347 'is_nullable': mojom.IsNullableKind, 321 'is_nullable': mojom.IsNullableKind,
348 'is_pointer': IsPointer, 322 'is_pointer': IsPointer,
349 'is_object': mojom.IsObjectKind, 323 'is_object': mojom.IsObjectKind,
350 'is_struct': mojom.IsStructKind, 324 'is_struct': mojom.IsStructKind,
351 'is_union': mojom.IsUnionKind, 325 'is_union': mojom.IsUnionKind,
352 'qualified': GetQualifiedName, 326 'qualified': GetQualifiedName,
353 'fullidentifier': GetFullIdentifier, 327 'fullidentifier': mojom.GetMojomTypeFullIdentifier,
354 'mojom_type': GetMojomTypeValue, 328 'mojom_type': GetMojomTypeValue,
355 'mojom_type_identifier': GetMojomTypeIdentifier, 329 'mojom_type_identifier': mojom.GetMojomTypeIdentifier,
356 'name': GetNameForElement, 330 'name': GetNameForElement,
357 'unqualified_name': GetUnqualifiedNameForElement, 331 'unqualified_name': GetUnqualifiedNameForElement,
358 'package': GetPackageNameForElement, 332 'package': GetPackageNameForElement,
359 'tab_indent': lambda s, size = 1: ('\n' + '\t' * size).join(s.splitlines()) 333 'tab_indent': lambda s, size = 1: ('\n' + '\t' * size).join(s.splitlines())
360 } 334 }
361 335
362 # If set to True, then mojom type information will be generated. 336 # If set to True, then mojom type information will be generated.
363 should_gen_mojom_types = False 337 should_gen_mojom_types = False
364 338
365 def GetParameters(self): 339 def GetParameters(self):
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487 # Overrides the implementation from the base class in order to customize the 461 # Overrides the implementation from the base class in order to customize the
488 # struct and field names. 462 # struct and field names.
489 def _GetResponseStructFromMethod(self, method): 463 def _GetResponseStructFromMethod(self, method):
490 params_class = "%s_%s_ResponseParams" % ( 464 params_class = "%s_%s_ResponseParams" % (
491 GetNameForElement(method.interface), GetNameForElement(method)) 465 GetNameForElement(method.interface), GetNameForElement(method))
492 struct = mojom.Struct(params_class, module=method.interface.module) 466 struct = mojom.Struct(params_class, module=method.interface.module)
493 for param in method.response_parameters: 467 for param in method.response_parameters:
494 struct.AddField("out%s" % GetNameForElement(param), 468 struct.AddField("out%s" % GetNameForElement(param),
495 param.kind, param.ordinal, attributes=param.attributes) 469 param.kind, param.ordinal, attributes=param.attributes)
496 return self._AddStructComputedData(False, struct) 470 return self._AddStructComputedData(False, struct)
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