22729722447

Committed 05 Mar 2026 04:48PM UTC coverage: 89.491% (-0.2%) from 89.682%

Build # 22729722447

Build Type

push

github

Committed by

Giorgi

Commit Message

Use field keyword

Coverage Stats

1260 of 1467 branches covered (85.89%)

Branch coverage included in aggregate %.

5 of 5 new or added lines in 2 files covered. (100.0%)

12 existing lines in 3 files now uncovered.

2606 of 2853 relevant lines covered (91.34%)

451516.24 hits per line

Source File
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95.45

/DuckDB.NET.Data/Extensions/TypeExtensions.cs

using System.Diagnostics.CodeAnalysis;
using System.Runtime.CompilerServices;

namespace DuckDB.NET.Data.Extensions;

internal static class TypeExtensions
{
    private static readonly HashSet<Type> FloatingNumericTypes = [typeof(decimal), typeof(float), typeof(double)];

    private static readonly HashSet<Type> IntegralNumericTypes =
    [
        typeof(byte), typeof(sbyte),
        typeof(short), typeof(ushort),
        typeof(int), typeof(uint),
        typeof(long), typeof(ulong),
        typeof(BigInteger)
    ];

    private static readonly Dictionary<Type, DuckDBType> ClrToDuckDBTypeMap = new()
    {
        { typeof(bool), DuckDBType.Boolean },
        { typeof(sbyte), DuckDBType.TinyInt },
        { typeof(short), DuckDBType.SmallInt },
        { typeof(int), DuckDBType.Integer },
        { typeof(long), DuckDBType.BigInt },
        { typeof(byte), DuckDBType.UnsignedTinyInt },
        { typeof(ushort), DuckDBType.UnsignedSmallInt },
        { typeof(uint), DuckDBType.UnsignedInteger },
        { typeof(ulong), DuckDBType.UnsignedBigInt },
        { typeof(float), DuckDBType.Float },
        { typeof(double), DuckDBType.Double},
        { typeof(Guid), DuckDBType.Uuid},
        { typeof(DateTime), DuckDBType.Timestamp},
        { typeof(TimeSpan), DuckDBType.Interval},
        { typeof(DateOnly), DuckDBType.Date},
        { typeof(TimeOnly), DuckDBType.Time},
        { typeof(DateTimeOffset), DuckDBType.TimestampTz},
        { typeof(BigInteger), DuckDBType.HugeInt},
        { typeof(string), DuckDBType.Varchar},
        { typeof(decimal), DuckDBType.Decimal},
        { typeof(object), DuckDBType.Any},
    };

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static bool IsNull([NotNullWhen(false)] this object? value) => value is null or DBNull;

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Type UnderlyingTypeOrSelf(this Type type) => Nullable.GetUnderlyingType(type) ?? type;

    public static bool IsFloatingNumericType<T>()
    {
        return FloatingNumericTypes.Contains(typeof(T));
    }

    public static bool IsIntegralNumericType<T>()
    {
        return IntegralNumericTypes.Contains(typeof(T));
    }

    public static bool IsNumeric(this Type type)
    {
        return IntegralNumericTypes.Contains(type) || FloatingNumericTypes.Contains(type);
    }

    public static bool AllowsNullValue(this Type type, out bool isNullableValueType, out Type? underlyingType)
    {
        underlyingType = Nullable.GetUnderlyingType(type);
        isNullableValueType = underlyingType != null;

        var isNullable = isNullableValueType || !type.IsValueType;

        return isNullable;
    }

    public static DuckDBLogicalType GetLogicalType<T>() => typeof(T).GetLogicalType();

    public static DuckDBLogicalType GetLogicalType(this Type type)
    {
        type = type.UnderlyingTypeOrSelf();

        if (type == typeof(decimal))
        {
            return NativeMethods.LogicalType.DuckDBCreateDecimalType(38, 18);
        }

        if (ClrToDuckDBTypeMap.TryGetValue(type, out var duckDBType))
        {
            return NativeMethods.LogicalType.DuckDBCreateLogicalType(duckDBType);
        }

        throw new InvalidOperationException($"Cannot map type {type.FullName} to DuckDBType.");
    }

    public static DuckDBType GetDuckDBType(this Type type) => ClrToDuckDBTypeMap.TryGetValue(type, out var duckDBType) ? duckDBType : DuckDBType.Invalid;
}

1	using System.Diagnostics.CodeAnalysis;
2	using System.Runtime.CompilerServices;
3
4	namespace DuckDB.NET.Data.Extensions;
5
6	internal static class TypeExtensions
7	{
8	private static readonly HashSet<Type> FloatingNumericTypes = [typeof(decimal), typeof(float), typeof(double)];	3✔
9
10	private static readonly HashSet<Type> IntegralNumericTypes =	3✔
11	[	3✔
12	typeof(byte), typeof(sbyte),	3✔
13	typeof(short), typeof(ushort),	3✔
14	typeof(int), typeof(uint),	3✔
15	typeof(long), typeof(ulong),	3✔
16	typeof(BigInteger)	3✔
17	];	3✔
18
19	private static readonly Dictionary<Type, DuckDBType> ClrToDuckDBTypeMap = new()	3✔
20	{	3✔
21	{ typeof(bool), DuckDBType.Boolean },	3✔
22	{ typeof(sbyte), DuckDBType.TinyInt },	3✔
23	{ typeof(short), DuckDBType.SmallInt },	3✔
24	{ typeof(int), DuckDBType.Integer },	3✔
25	{ typeof(long), DuckDBType.BigInt },	3✔
26	{ typeof(byte), DuckDBType.UnsignedTinyInt },	3✔
27	{ typeof(ushort), DuckDBType.UnsignedSmallInt },	3✔
28	{ typeof(uint), DuckDBType.UnsignedInteger },	3✔
29	{ typeof(ulong), DuckDBType.UnsignedBigInt },	3✔
30	{ typeof(float), DuckDBType.Float },	3✔
31	{ typeof(double), DuckDBType.Double},	3✔
32	{ typeof(Guid), DuckDBType.Uuid},	3✔
33	{ typeof(DateTime), DuckDBType.Timestamp},	3✔
34	{ typeof(TimeSpan), DuckDBType.Interval},	3✔
35	{ typeof(DateOnly), DuckDBType.Date},	3✔
36	{ typeof(TimeOnly), DuckDBType.Time},	3✔
37	{ typeof(DateTimeOffset), DuckDBType.TimestampTz},	3✔
38	{ typeof(BigInteger), DuckDBType.HugeInt},	3✔
39	{ typeof(string), DuckDBType.Varchar},	3✔
40	{ typeof(decimal), DuckDBType.Decimal},	3✔
41	{ typeof(object), DuckDBType.Any},	3✔
42	};	3✔
43
44	[MethodImpl(MethodImplOptions.AggressiveInlining)]
45	public static bool IsNull([NotNullWhen(false)] this object? value) => value is null or DBNull;	12,547✔
46
47	[MethodImpl(MethodImplOptions.AggressiveInlining)]
48	public static Type UnderlyingTypeOrSelf(this Type type) => Nullable.GetUnderlyingType(type) ?? type;	828✔
49
50	public static bool IsFloatingNumericType<T>()
51	{
52	return FloatingNumericTypes.Contains(typeof(T));	4,038,872✔
53	}
54
55	public static bool IsIntegralNumericType<T>()
56	{
57	return IntegralNumericTypes.Contains(typeof(T));	4,038,872✔
58	}
59
60	public static bool IsNumeric(this Type type)
61	{
62	return IntegralNumericTypes.Contains(type) \|\| FloatingNumericTypes.Contains(type);	9,628,730✔
63	}
64
65	public static bool AllowsNullValue(this Type type, out bool isNullableValueType, out Type? underlyingType)
66	{
67	underlyingType = Nullable.GetUnderlyingType(type);	1,042,953✔
68	isNullableValueType = underlyingType != null;	1,042,953✔
69
70	var isNullable = isNullableValueType \|\| !type.IsValueType;	1,042,953✔
71
72	return isNullable;	308,315✔
73	}
74
75	public static DuckDBLogicalType GetLogicalType<T>() => typeof(T).GetLogicalType();	165✔
76
77	public static DuckDBLogicalType GetLogicalType(this Type type)
78	{
79	type = type.UnderlyingTypeOrSelf();	801✔
80
81	if (type == typeof(decimal))	801✔
82	{
83	return NativeMethods.LogicalType.DuckDBCreateDecimalType(38, 18);	15✔
84	}
85
86	if (ClrToDuckDBTypeMap.TryGetValue(type, out var duckDBType))	786!
87	{
88	return NativeMethods.LogicalType.DuckDBCreateLogicalType(duckDBType);	786✔
89	}
90
UNCOV 91	throw new InvalidOperationException($"Cannot map type {type.FullName} to DuckDBType.");	×
92	}
93
94	public static DuckDBType GetDuckDBType(this Type type) => ClrToDuckDBTypeMap.TryGetValue(type, out var duckDBType) ? duckDBType : DuckDBType.Invalid;	27!
95	}

Giorgi / DuckDB.NET / 22729722447

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