Add NpgsqlTsVector.Empty (#6145)

roji · web-flow · commit 1b55ebc74d15 · 2025-06-23T14:03:52.000+03:00
Closes #6134
diff --git a/src/Npgsql/NpgsqlTypes/NpgsqlTsVector.cs b/src/Npgsql/NpgsqlTypes/NpgsqlTsVector.cs
@@ -11,6 +11,11 @@ namespace NpgsqlTypes;
 /// </summary>
 public sealed class NpgsqlTsVector : IEnumerable<NpgsqlTsVector.Lexeme>, IEquatable<NpgsqlTsVector>
 {
+    /// <summary>
+    /// Represents an empty tsvector.
+    /// </summary>
+    public static readonly NpgsqlTsVector Empty = new NpgsqlTsVector([], noCheck: true);
+
     readonly List<Lexeme> _lexemes;
 
     internal NpgsqlTsVector(List<Lexeme> lexemes, bool noCheck = false)
diff --git a/src/Npgsql/PublicAPI.Unshipped.txt b/src/Npgsql/PublicAPI.Unshipped.txt
@@ -84,3 +84,4 @@ Npgsql.NpgsqlConnection.ReloadTypesAsync(System.Threading.CancellationToken canc
 *REMOVED*Npgsql.NpgsqlSlimDataSourceBuilder.MapComposite<T>(string? pgName = null, Npgsql.INpgsqlNameTranslator? nameTranslator = null) -> Npgsql.TypeMapping.INpgsqlTypeMapper!
 *REMOVED*Npgsql.NpgsqlSlimDataSourceBuilder.MapEnum(System.Type! clrType, string? pgName = null, Npgsql.INpgsqlNameTranslator? nameTranslator = null) -> Npgsql.TypeMapping.INpgsqlTypeMapper!
 *REMOVED*Npgsql.NpgsqlSlimDataSourceBuilder.MapEnum<TEnum>(string? pgName = null, Npgsql.INpgsqlNameTranslator? nameTranslator = null) -> Npgsql.TypeMapping.INpgsqlTypeMapper!
+static readonly NpgsqlTypes.NpgsqlTsVector.Empty -> NpgsqlTypes.NpgsqlTsVector!
diff --git a/test/Npgsql.Tests/TypesTests.cs b/test/Npgsql.Tests/TypesTests.cs
@@ -86,6 +86,13 @@ public void TsQuery()
     }
 #pragma warning restore CS0618 // {NpgsqlTsVector,NpgsqlTsQuery}.Parse are obsolete
 
+    [Test]
+    public void TsVector_empty()
+    {
+        Assert.IsEmpty(NpgsqlTsVector.Empty);
+        Assert.AreEqual(string.Empty, NpgsqlTsVector.Empty.ToString());
+    }
+
     [Test]
     public void TsQueryEquatibility()
     {

Original file line number	Diff line number	Diff line change
`@@ -86,6 +86,13 @@ public void TsQuery()`
`86`	`86`	`}`
`87`	`87`	`#pragma warning restore CS0618 // {NpgsqlTsVector,NpgsqlTsQuery}.Parse are obsolete`
`88`	`88`
	`89`	`+ [Test]`
	`90`	`+ public void TsVector_empty()`
	`91`	`+ {`
	`92`	`+ Assert.IsEmpty(NpgsqlTsVector.Empty);`
	`93`	`+ Assert.AreEqual(string.Empty, NpgsqlTsVector.Empty.ToString());`
	`94`	`+ }`
	`95`	`+`
`89`	`96`	`[Test]`
`90`	`97`	`public void TsQueryEquatibility()`
`91`	`98`	`{`