diff options
Diffstat (limited to 'utils/ipc/mojo/public/tools/mojom/mojom/generate/constant_resolver.py')
-rw-r--r-- | utils/ipc/mojo/public/tools/mojom/mojom/generate/constant_resolver.py | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/utils/ipc/mojo/public/tools/mojom/mojom/generate/constant_resolver.py b/utils/ipc/mojo/public/tools/mojom/mojom/generate/constant_resolver.py deleted file mode 100644 index 0dfd996e..00000000 --- a/utils/ipc/mojo/public/tools/mojom/mojom/generate/constant_resolver.py +++ /dev/null @@ -1,93 +0,0 @@ -# Copyright 2015 The Chromium Authors. All rights reserved. -# Use of this source code is governed by a BSD-style license that can be -# found in the LICENSE file. -"""Resolves the values used for constants and enums.""" - -from itertools import ifilter - -from mojom.generate import module as mojom - - -def ResolveConstants(module, expression_to_text): - in_progress = set() - computed = set() - - def GetResolvedValue(named_value): - assert isinstance(named_value, (mojom.EnumValue, mojom.ConstantValue)) - if isinstance(named_value, mojom.EnumValue): - field = next( - ifilter(lambda field: field.name == named_value.name, - named_value.enum.fields), None) - if not field: - raise RuntimeError( - 'Unable to get computed value for field %s of enum %s' % - (named_value.name, named_value.enum.name)) - if field not in computed: - ResolveEnum(named_value.enum) - return field.resolved_value - else: - ResolveConstant(named_value.constant) - named_value.resolved_value = named_value.constant.resolved_value - return named_value.resolved_value - - def ResolveConstant(constant): - if constant in computed: - return - if constant in in_progress: - raise RuntimeError('Circular dependency for constant: %s' % constant.name) - in_progress.add(constant) - if isinstance(constant.value, (mojom.EnumValue, mojom.ConstantValue)): - resolved_value = GetResolvedValue(constant.value) - else: - resolved_value = expression_to_text(constant.value) - constant.resolved_value = resolved_value - in_progress.remove(constant) - computed.add(constant) - - def ResolveEnum(enum): - def ResolveEnumField(enum, field, default_value): - if field in computed: - return - if field in in_progress: - raise RuntimeError('Circular dependency for enum: %s' % enum.name) - in_progress.add(field) - if field.value: - if isinstance(field.value, mojom.EnumValue): - resolved_value = GetResolvedValue(field.value) - elif isinstance(field.value, str): - resolved_value = int(field.value, 0) - else: - raise RuntimeError('Unexpected value: %s' % field.value) - else: - resolved_value = default_value - field.resolved_value = resolved_value - in_progress.remove(field) - computed.add(field) - - current_value = 0 - for field in enum.fields: - ResolveEnumField(enum, field, current_value) - current_value = field.resolved_value + 1 - - for constant in module.constants: - ResolveConstant(constant) - - for enum in module.enums: - ResolveEnum(enum) - - for struct in module.structs: - for constant in struct.constants: - ResolveConstant(constant) - for enum in struct.enums: - ResolveEnum(enum) - for field in struct.fields: - if isinstance(field.default, (mojom.ConstantValue, mojom.EnumValue)): - field.default.resolved_value = GetResolvedValue(field.default) - - for interface in module.interfaces: - for constant in interface.constants: - ResolveConstant(constant) - for enum in interface.enums: - ResolveEnum(enum) - - return module |