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[Merged by Bors] - Mark TableRow and TableId as repr(transparent) #7166
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james7132
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A bug that results in undefined compiler behavior
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lol
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# Objective Following #6681, both `TableRow` and `TableId` are now part of `EntityLocation`. However, the safety invariant on `EntityLocation` requires that all of the constituent fields are `repr(transprent)` or `repr(C)` and the bit pattern of all 1s must be valid. This is not true for `TableRow` and `TableId` currently. ## Solution Mark `TableRow` and `TableId` to satisfy the safety requirement. Add safety comments on `ArchetypeId`, `ArchetypeRow`, `TableId` and `TableRow`.
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Mark TableRow and TableId as repr(transparent)
[Merged by Bors] - Mark TableRow and TableId as repr(transparent)
Jan 11, 2023
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# Objective Following bevyengine#6681, both `TableRow` and `TableId` are now part of `EntityLocation`. However, the safety invariant on `EntityLocation` requires that all of the constituent fields are `repr(transprent)` or `repr(C)` and the bit pattern of all 1s must be valid. This is not true for `TableRow` and `TableId` currently. ## Solution Mark `TableRow` and `TableId` to satisfy the safety requirement. Add safety comments on `ArchetypeId`, `ArchetypeRow`, `TableId` and `TableRow`.
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# Objective Following bevyengine#6681, both `TableRow` and `TableId` are now part of `EntityLocation`. However, the safety invariant on `EntityLocation` requires that all of the constituent fields are `repr(transprent)` or `repr(C)` and the bit pattern of all 1s must be valid. This is not true for `TableRow` and `TableId` currently. ## Solution Mark `TableRow` and `TableId` to satisfy the safety requirement. Add safety comments on `ArchetypeId`, `ArchetypeRow`, `TableId` and `TableRow`.
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A-ECS
Entities, components, systems, and events
P-Unsound
A bug that results in undefined compiler behavior
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Objective
Following #6681, both
TableRow
andTableId
are now part ofEntityLocation
. However, the safety invariant onEntityLocation
requires that all of the constituent fields arerepr(transprent)
orrepr(C)
and the bit pattern of all 1s must be valid. This is not true forTableRow
andTableId
currently.Solution
Mark
TableRow
andTableId
to satisfy the safety requirement. Add safety comments onArchetypeId
,ArchetypeRow
,TableId
andTableRow
.