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[C#] Rework how sorted vectors are looked up (#7441)

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This commit is contained in:
Derek Bailey
2022-08-15 09:33:07 -07:00
committed by GitHub
parent 44a7dc9995
commit 214125e417
5 changed files with 104 additions and 68 deletions
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10
tests/MyGame/Example/Stat.cs
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@@ -52,17 +52,21 @@ public struct Stat : IFlatbufferObject
}
public static VectorOffset CreateSortedVectorOfStat(FlatBufferBuilder builder, Offset<Stat>[] offsets) {
Array.Sort(offsets, (Offset<Stat> o1, Offset<Stat> o2) => builder.DataBuffer.GetUshort(Table.__offset(8, o1.Value, builder.DataBuffer)).CompareTo(builder.DataBuffer.GetUshort(Table.__offset(8, o2.Value, builder.DataBuffer))));
Array.Sort(offsets,
(Offset<Stat> o1, Offset<Stat> o2) =>
new Stat().__assign(builder.DataBuffer.Length - o1.Value, builder.DataBuffer).Count.CompareTo(new Stat().__assign(builder.DataBuffer.Length - o2.Value, builder.DataBuffer).Count));
return builder.CreateVectorOfTables(offsets);
}
public static Stat? __lookup_by_key(int vectorLocation, ushort key, ByteBuffer bb) {
Stat obj_ = new Stat();
int span = bb.GetInt(vectorLocation - 4);
int start = 0;
while (span != 0) {
int middle = span / 2;
int tableOffset = Table.__indirect(vectorLocation + 4 * (start + middle), bb);
int comp = bb.GetUshort(Table.__offset(8, bb.Length - tableOffset, bb)).CompareTo(key);
obj_.__assign(tableOffset, bb);
int comp = obj_.Count.CompareTo(key);
if (comp > 0) {
span = middle;
} else if (comp < 0) {
@@ -70,7 +74,7 @@ public struct Stat : IFlatbufferObject
start += middle;
span -= middle;
} else {
return new Stat().__assign(tableOffset, bb);
return obj_;
}
}
return null;