| Ting Xu | ce4b645 | 2022-04-24 06:14:25 +0000 | [diff] [blame] | 1 | # Copyright (c) 2022 Intel and/or its affiliates. |
| 2 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 3 | # you may not use this file except in compliance with the License. |
| 4 | # You may obtain a copy of the License at: |
| 5 | # |
| 6 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 7 | # |
| 8 | # Unless required by applicable law or agreed to in writing, software |
| 9 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 10 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 11 | # See the License for the specific language governing permissions and |
| 12 | # limitations under the License. |
| 13 | |
| 14 | import ExpressionConverter |
| 15 | from InputFormat import * |
| 16 | |
| 17 | |
| 18 | class NodeField: |
| 19 | def __init__(self): |
| 20 | self.DefaultValue = None |
| 21 | self.IsReserved = None |
| 22 | self.IsReadonly = None |
| 23 | self.IsAutoIncrease = None |
| 24 | self.IsIncreaseLength = None |
| 25 | self.Optional = None |
| 26 | self.VariableSize = None |
| 27 | |
| 28 | def Create(token): |
| 29 | if token == None: |
| 30 | return None |
| 31 | |
| 32 | field = NodeField() |
| 33 | |
| 34 | if token["name"] == None: |
| 35 | return None |
| 36 | if token["size"] == None: |
| 37 | return None |
| 38 | |
| 39 | # name |
| 40 | field.Name = token["name"] |
| 41 | |
| 42 | if field.Name == "reserved": |
| 43 | field.IsReserved = True |
| 44 | |
| 45 | inputFormat = InputFormat.bytearray |
| 46 | res, u16 = ExpressionConverter.ToNum(token["size"]) |
| 47 | |
| 48 | # size |
| 49 | if res: |
| 50 | field.Size = u16 |
| 51 | if u16 <= 8: |
| 52 | inputFormat = InputFormat.u8 |
| 53 | elif u16 <= 16: |
| 54 | inputFormat = InputFormat.u16 |
| 55 | elif u16 <= 32: |
| 56 | inputFormat = InputFormat.u32 |
| 57 | elif u16 <= 64: |
| 58 | inputFormat = InputFormat.u64 |
| 59 | else: |
| 60 | inputFormat = InputFormat.bytearray |
| 61 | else: |
| 62 | field.Size = 0 |
| 63 | field.VariableSize = token["size"] |
| 64 | |
| 65 | if "format" in token and token["format"] != None: |
| 66 | inputFormat = InputFormat[token["format"]] |
| 67 | |
| 68 | field.Format = inputFormat |
| 69 | |
| 70 | if "default" in token and token["default"] != None: |
| 71 | field.DefaultValue = token["default"] |
| 72 | ret, _ = ExpressionConverter.Verify(field.Format, field.DefaultValue) |
| 73 | if not ret: |
| 74 | return None |
| 75 | |
| 76 | if "readonly" in token and token["readonly"] == "true" or field.IsReserved: |
| 77 | field.IsReadonly = True |
| 78 | if "autoincrease" in token and token["autoincrease"] == "true": |
| 79 | field.IsAutoIncrease = True |
| 80 | field.IsReadonly = True |
| 81 | if "increaselength" in token and token["increaselength"] == "true": |
| 82 | field.IsIncreaseLength = True |
| 83 | if "optional" in token: |
| 84 | field.Optional = token["optional"] |
| 85 | |
| 86 | return field |