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namespace Oni.Metadata |
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{ |
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internal class CompareVisitor : MetaTypeVisitor |
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{ |
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private readonly BinaryReader reader1; |
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private readonly BinaryReader reader2; |
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private bool equals = true; |
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|
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public CompareVisitor(BinaryReader reader1, BinaryReader reader2) |
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{ |
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this.reader1 = reader1; |
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this.reader2 = reader2; |
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} |
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|
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public bool AreEquals => equals; |
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|
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public override void VisitByte(MetaByte type) => equals = (reader1.ReadByte() == reader2.ReadByte()); |
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public override void VisitInt16(MetaInt16 type) => equals = (reader1.ReadInt16() == reader2.ReadInt16()); |
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public override void VisitInt32(MetaInt32 type) => equals = (reader1.ReadInt32() == reader2.ReadInt32()); |
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public override void VisitUInt32(MetaUInt32 type) => equals = (reader1.ReadUInt32() == reader2.ReadUInt32()); |
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public override void VisitInt64(MetaInt64 type) => equals = (reader1.ReadInt64() == reader2.ReadInt64()); |
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public override void VisitUInt64(MetaUInt64 type) => equals = (reader1.ReadUInt64() == reader2.ReadUInt64()); |
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public override void VisitFloat(MetaFloat type) => equals = (reader1.ReadSingle() == reader2.ReadSingle()); |
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public override void VisitColor(MetaColor type) => equals = (reader1.ReadInt32() == reader2.ReadInt32()); |
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public override void VisitRawOffset(MetaRawOffset type) => equals = (reader1.ReadInt32() == reader2.ReadInt32()); |
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public override void VisitSepOffset(MetaSepOffset type) => equals = (reader1.ReadInt32() == reader2.ReadInt32()); |
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public override void VisitPointer(MetaPointer type) => equals = (reader1.ReadInt32() == reader2.ReadInt32()); |
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public override void VisitString(MetaString type) => equals = (reader1.ReadString(type.Count) == reader2.ReadString(type.Count)); |
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|
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public override void VisitPadding(MetaPadding type) |
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{ |
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reader1.Skip(type.Count); |
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reader2.Skip(type.Count); |
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} |
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|
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public override void VisitStruct(MetaStruct type) |
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{ |
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foreach (var field in type.Fields) |
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{ |
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field.Type.Accept(this); |
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|
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if (!equals) |
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break; |
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} |
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} |
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|
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public override void VisitArray(MetaArray type) |
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{ |
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CompareArray(type.ElementType, type.Count); |
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} |
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|
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public override void VisitVarArray(MetaVarArray type) |
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{ |
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int count1, count2; |
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|
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if (type.CountField.Type == MetaType.Int16) |
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{ |
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count1 = reader1.ReadInt16(); |
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count2 = reader2.ReadInt16(); |
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} |
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else |
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{ |
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count1 = reader1.ReadInt32(); |
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count2 = reader2.ReadInt32(); |
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} |
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|
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equals = (count1 == count2); |
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|
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if (!equals) |
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return; |
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|
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CompareArray(type.ElementType, count1); |
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} |
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|
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private void CompareArray(MetaType elementType, int count) |
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{ |
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for (int i = 0; i < count; i++) |
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{ |
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elementType.Accept(this); |
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|
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if (!equals) |
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break; |
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} |
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} |
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} |
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} |
