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Encode without array allocation

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This commit is contained in:
Peter Butzhammer
2024-04-25 13:33:05 +02:00
parent b400a7215a
commit 08f572b582
3 changed files with 56 additions and 101 deletions
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10
Sharp7.Rx.Tests/ValueConverterTests/ConverterTestBase.cs
View File

@@ -49,6 +49,8 @@ internal abstract class ConverterTestBase
yield return new ConverterTestCase("ABCD", "DB99.WString10.4", [0x00, 0x04, 0x00, 0x04, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, 0x44]);
yield return new ConverterTestCase("ABCD", "DB99.WString10.6", [0x00, 0x06, 0x00, 0x04, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00]);
yield return new ConverterTestCase("ABCD", "DB99.Byte5.4", [0x41, 0x42, 0x43, 0x44]);
yield return new ConverterTestCase("A\ud83d\udc69\ud83c\udffd\u200d\ud83d\ude80A", "DB99.WString10.10",
[0x0, 0xA, 0x0, 0x9, 0x0, 0x41, 0xD8, 0x3D, 0xDC, 0x69, 0xD8, 0x3C, 0xDF, 0xFD, 0x20, 0xD, 0xD8, 0x3D, 0xDE, 0x80, 0x0, 0x41, 0x0, 0x0]);
yield return new ConverterTestCase(true, "DB99.DBx0.0", [0x01]);
yield return new ConverterTestCase(false, "DB99.DBx0.0", [0x00]);
@@ -69,15 +71,15 @@ internal abstract class ConverterTestBase
/// This helper method exists, since I could not manage to invoke a generic method
/// with a Span<T> parameter.
/// </summary>
public static void WriteToBuffer<TValue>(byte[] buffer, TValue value, VariableAddress address) =>
ValueConverter.WriteToBuffer(buffer, value, address);
public static TValue ReadFromBuffer<TValue>(byte[] buffer, VariableAddress address) =>
ValueConverter.ReadFromBuffer<TValue>(buffer, address);
/// <summary>
/// This helper method exists, since I could not manage to invoke a generic method
/// with a Span&lt;T&gt; parameter.
/// </summary>
public static TValue ReadFromBuffer<TValue>(byte[] buffer, VariableAddress address) =>
ValueConverter.ReadFromBuffer<TValue>(buffer, address);
public static void WriteToBuffer<TValue>(byte[] buffer, TValue value, VariableAddress address) =>
ValueConverter.WriteToBuffer(buffer, value, address);
public record ConverterTestCase(object Value, string Address, byte[] Data)
{

4
Sharp7.Rx.Tests/ValueConverterTests/WriteToBuffer.cs
View File

@@ -25,6 +25,10 @@ internal class WriteToBuffer : ConverterTestBase
{
yield return new ConverterTestCase("aaaaBCDE", "DB0.string0.4", [0x04, 0x04, 0x61, 0x61, 0x61, 0x61]); // Length in address exceeds PLC string length
yield return new ConverterTestCase("aaaaBCDE", "DB0.WString0.4", [0x00, 0x04, 0x00, 0x04, 0x00, 0x61, 0x00, 0x61, 0x00, 0x61, 0x00, 0x61]); // Length in address exceeds PLC string length
yield return new ConverterTestCase("aaaaBCDE", "DB0.DBB0.4", [0x61, 0x61, 0x61, 0x61]); // Length in address exceeds PLC array length
yield return new ConverterTestCase("\ud83d\udc69\ud83c\udffd\u200d\ud83d\ude80", "DB0.WString0.2", [0x00, 0x02, 0x00, 0x02, 0xD8, 0x3D, 0xDC, 0x69]); // Length in address exceeds PLC string length, multi char unicode point
yield return new ConverterTestCase("\ud83d\udc69\ud83c\udffd\u200d\ud83d\ude80", "DB0.String0.2", [0x02, 0x02, 0x3F, 0x3F]); // Length in address exceeds PLC string length, multi char unicode point
yield return new ConverterTestCase("\ud83d\udc69\ud83c\udffd\u200d\ud83d\ude80", "DB0.DBB0.4", [0x3F, 0x3F, 0x3F, 0x3F]); // Length in address exceeds PLC string length, multi char unicode point
}
[TestCase(18, "DB0.DInt12", 3)]