49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
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# Copyright (c) 2022 Intel and/or its affiliates.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import ExpressionConverter
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class ProtocolHeaderField:
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def __init__(self, Size, Value, Mask, Field):
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self.Size = Size
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self.Value = Value
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self.Mask = Mask
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self.Field = Field
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def UpdateValue(self, expression, auto):
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if self.Field.IsReadonly and not auto:
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return False
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if expression != None:
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ret, _ = ExpressionConverter.Verify(self.Field.Format, expression)
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if not ret:
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return False
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self.Value = expression
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return True
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def UpdateMask(self, expression):
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if expression != None:
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ret, _ = ExpressionConverter.Verify(self.Field.Format, expression)
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if not ret:
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return False
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self.Mask = expression
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return True
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def UpdateSize(self):
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if self.Size:
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return
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self.Size = self.Field.Size
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