53 lines
1.7 KiB
C#
53 lines
1.7 KiB
C#
using System;
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using System.Collections.Generic;
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namespace QFSW.QC.Parsers
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{
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public class TupleParser : MassGenericQcParser
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{
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private const int MaxFlatTupleSize = 8;
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protected override HashSet<Type> GenericTypes { get; } = new HashSet<Type>
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{
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typeof(ValueTuple<>),
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typeof(ValueTuple<,>),
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typeof(ValueTuple<,,>),
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typeof(ValueTuple<,,,>),
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typeof(ValueTuple<,,,,>),
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typeof(ValueTuple<,,,,,>),
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typeof(ValueTuple<,,,,,,>),
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typeof(ValueTuple<,,,,,,,>),
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typeof(Tuple<>),
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typeof(Tuple<,>),
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typeof(Tuple<,,>),
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typeof(Tuple<,,,>),
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typeof(Tuple<,,,,>),
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typeof(Tuple<,,,,,>),
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typeof(Tuple<,,,,,,>),
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typeof(Tuple<,,,,,,,>)
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};
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public override object Parse(string value, Type type)
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{
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TextProcessing.ScopedSplitOptions options = TextProcessing.ScopedSplitOptions.Default;
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options.MaxCount = MaxFlatTupleSize;
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string[] inputParts = value.ReduceScope('(', ')').SplitScoped(',', options);
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Type[] elementTypes = type.GetGenericArguments();
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if (elementTypes.Length != inputParts.Length)
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{
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throw new ParserInputException($"Desired tuple type {type} has {elementTypes.Length} elements but input contained {inputParts.Length}.");
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}
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object[] tupleParts = new object[inputParts.Length];
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for (int i = 0; i < tupleParts.Length; i++)
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{
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tupleParts[i] = ParseRecursive(inputParts[i], elementTypes[i]);
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}
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return Activator.CreateInstance(type, tupleParts);
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}
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}
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}
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