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Java: Calculation of vtable and vtable size moved to the __init method. (#5210)

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vtable and vtable size depends only on `Table#bb_pos` but calculated in
`Table#_offset` method on each field lookup.
Doing this with every call of `Table#__offset` is redundant.

These values can be read once with change of `Table#bb_pos` and reused
for any field lookup.
This commit is contained in:
Kulikov Alexey
2019-02-26 05:45:29 +07:00
committed by Wouter van Oortmerssen
parent dc61512f20
commit 4e5152d886
20 changed files with 39 additions and 19 deletions
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2
tests/MyGame/Example/Referrable.java
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@@ -11,7 +11,7 @@ import com.google.flatbuffers.*;
public final class Referrable extends Table {
public static Referrable getRootAsReferrable(ByteBuffer _bb) { return getRootAsReferrable(_bb, new Referrable()); }
public static Referrable getRootAsReferrable(ByteBuffer _bb, Referrable obj) { _bb.order(ByteOrder.LITTLE_ENDIAN); return (obj.__assign(_bb.getInt(_bb.position()) + _bb.position(), _bb)); }
public void __init(int _i, ByteBuffer _bb) { bb_pos = _i; bb = _bb; }
public void __init(int _i, ByteBuffer _bb) { bb_pos = _i; bb = _bb; vtable_start = bb_pos - bb.getInt(bb_pos); vtable_size = bb.getShort(vtable_start); }
public Referrable __assign(int _i, ByteBuffer _bb) { __init(_i, _bb); return this; }
public long id() { int o = __offset(4); return o != 0 ? bb.getLong(o + bb_pos) : 0L; }