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-rw-r--r--src/Spv.Generator/LiteralString.cs54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/Spv.Generator/LiteralString.cs b/src/Spv.Generator/LiteralString.cs
new file mode 100644
index 00000000..629ff7bf
--- /dev/null
+++ b/src/Spv.Generator/LiteralString.cs
@@ -0,0 +1,54 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace Spv.Generator
+{
+ public class LiteralString : Operand, IEquatable<LiteralString>
+ {
+ public OperandType Type => OperandType.String;
+
+ private string _value;
+
+ public LiteralString(string value)
+ {
+ _value = value;
+ }
+
+ public ushort WordCount => (ushort)(_value.Length / 4 + 1);
+
+ public void WriteOperand(BinaryWriter writer)
+ {
+ writer.Write(_value.AsSpan());
+
+ // String must be padded to the word size (which is 4 bytes).
+ int paddingSize = 4 - (Encoding.ASCII.GetByteCount(_value) % 4);
+
+ Span<byte> padding = stackalloc byte[paddingSize];
+
+ writer.Write(padding);
+ }
+
+ public override bool Equals(object obj)
+ {
+ return obj is LiteralString literalString && Equals(literalString);
+ }
+
+ public bool Equals(LiteralString cmpObj)
+ {
+ return Type == cmpObj.Type && _value.Equals(cmpObj._value);
+ }
+
+ public override int GetHashCode()
+ {
+ return DeterministicHashCode.Combine(Type, DeterministicHashCode.GetHashCode(_value));
+ }
+
+ public bool Equals(Operand obj)
+ {
+ return obj is LiteralString literalString && Equals(literalString);
+ }
+
+ public override string ToString() => _value;
+ }
+}