public static void LocalJsonSerializableAttributeUnexpectedShape(string assemblyName, bool includeSTJ)
{
string source = @"using System;
using System.Text.Json.Serialization;
[assembly: JsonSerializable(typeof(int))]
namespace System.Text.Json.Serialization
{
[AttributeUsage(AttributeTargets.Assembly, AllowMultiple = true)]
public sealed class JsonSerializableAttribute : JsonAttribute
{
public JsonSerializableAttribute(string typeInfoPropertyName, Type type) { }
}
}";
Compilation compilation = CompilationHelper.CreateCompilation(source, additionalReferences: null, assemblyName, includeSTJ);
JsonSourceGenerator generator = new JsonSourceGenerator();
CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
Assert.Null(generator.GetSerializableTypes());
CompilationHelper.CheckDiagnosticMessages(generatorDiags, DiagnosticSeverity.Info, Array.Empty <string>());
CompilationHelper.CheckDiagnosticMessages(generatorDiags, DiagnosticSeverity.Warning, Array.Empty <string>());
CompilationHelper.CheckDiagnosticMessages(generatorDiags, DiagnosticSeverity.Error, Array.Empty <string>());
}
public void Record()
{
// Compile the referenced assembly first.
Compilation referencedCompilation = CompilationHelper.CreateReferencedLibRecordCompilation();
// Emit the image of the referenced assembly.
byte[] referencedImage = CompilationHelper.CreateAssemblyImage(referencedCompilation);
string source = @"
using System.Text.Json.Serialization;
namespace HelloWorld
{
[JsonSerializable(typeof(AppRecord))]
internal partial class JsonContext : JsonSerializerContext
{
}
public record AppRecord(int Id)
{
public string Address1 { get; set; }
public string Address2 { get; set; }
public string City { get; set; }
public string State { get; set; }
public string PostalCode { get; set; }
public string Name { get; set; }
[JsonInclude]
public string PhoneNumber;
[JsonInclude]
public string Country;
}
}";
MetadataReference[] additionalReferences = { MetadataReference.CreateFromImage(referencedImage) };
Compilation compilation = CompilationHelper.CreateCompilation(source);
JsonSourceGenerator generator = new JsonSourceGenerator();
Compilation newCompilation = CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
// Make sure compilation was successful.
CheckCompilationDiagnosticsErrors(generatorDiags);
CheckCompilationDiagnosticsErrors(newCompilation.GetDiagnostics());
Dictionary <string, Type> types = generator.GetSerializableTypes();
// Check base functionality of found types.
Assert.Equal(1, types.Count);
Type recordType = types["HelloWorld.AppRecord"];
Assert.Equal("HelloWorld.AppRecord", recordType.FullName);
// Check for received fields, properties and methods for NotMyType.
string[] expectedFieldsNames = { "Country", "PhoneNumber" };
string[] expectedPropertyNames = { "Address1", "Address2", "City", "Id", "Name", "PostalCode", "State" };
CheckFieldsPropertiesMethods(recordType, expectedFieldsNames, expectedPropertyNames);
Assert.Equal(1, recordType.GetConstructors().Length);
}
public void MetadataLoadFilePathHandle()
{
// Create a MetadataReference from new code.
string referencedSource = @"
namespace ReferencedAssembly
{
public class ReferencedType
{
public int ReferencedPublicInt;
public double ReferencedPublicDouble;
}
}";
// Compile the referenced assembly first.
Compilation referencedCompilation = CompilationHelper.CreateCompilation(referencedSource);
// Emit the image of the referenced assembly.
byte[] referencedImage;
using (MemoryStream ms = new MemoryStream())
{
var emitResult = referencedCompilation.Emit(ms);
if (!emitResult.Success)
{
throw new InvalidOperationException();
}
referencedImage = ms.ToArray();
}
string source = @"
using System.Text.Json.Serialization;
using ReferencedAssembly;
[assembly: JsonSerializable(typeof(HelloWorld.MyType))]
[assembly: JsonSerializable(typeof(ReferencedAssembly.ReferencedType))]
namespace HelloWorld
{
public class MyType
{
public void MyMethod() { }
public void MySecondMethod() { }
}
}";
MetadataReference[] additionalReferences = { MetadataReference.CreateFromImage(referencedImage) };
// Compilation using the referenced image should fail if out MetadataLoadContext does not handle.
Compilation compilation = CompilationHelper.CreateCompilation(source, additionalReferences);
JsonSourceGenerator generator = new JsonSourceGenerator();
Compilation newCompilation = CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
// Make sure compilation was successful.
Assert.Empty(generatorDiags.Where(diag => diag.Severity.Equals(DiagnosticSeverity.Error)));
Assert.Empty(newCompilation.GetDiagnostics().Where(diag => diag.Severity.Equals(DiagnosticSeverity.Error)));
// Should find both types since compilation above was successful.
Assert.Equal(2, generator.GetSerializableTypes().Count);
}
public void ContextTypeNotInNamespace()
{
string source = @"
using System.Text.Json.Serialization;
[JsonSerializable(typeof(MyType))]
internal partial class JsonContext : JsonSerializerContext
{
}
public class MyType
{
public int PublicPropertyInt { get; set; }
public string PublicPropertyString { get; set; }
private int PrivatePropertyInt { get; set; }
private string PrivatePropertyString { get; set; }
public double PublicDouble;
public char PublicChar;
private double PrivateDouble;
private char PrivateChar;
public void MyMethod() { }
public void MySecondMethod() { }
public void UsePrivates()
{
PrivateDouble = 0;
PrivateChar = ' ';
double d = PrivateDouble;
char c = PrivateChar;
}
}";
Compilation compilation = CompilationHelper.CreateCompilation(source);
JsonSourceGenerator generator = new JsonSourceGenerator();
Compilation newCompilation = CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
// Make sure compilation was successful.
CheckCompilationDiagnosticsErrors(generatorDiags);
CheckCompilationDiagnosticsErrors(newCompilation.GetDiagnostics());
Dictionary <string, Type> types = generator.GetSerializableTypes();
// Check base functionality of found types.
Assert.Equal(1, types.Count);
Type myType = types["MyType"];
Assert.Equal("MyType", myType.FullName);
// Check for received fields, properties and methods in created type.
string[] expectedPropertyNames = { "PublicPropertyInt", "PublicPropertyString", };
string[] expectedFieldNames = { "PublicChar", "PublicDouble" };
string[] expectedMethodNames = { "get_PrivatePropertyInt", "get_PrivatePropertyString", "get_PublicPropertyInt", "get_PublicPropertyString", "MyMethod", "MySecondMethod", "set_PrivatePropertyInt", "set_PrivatePropertyString", "set_PublicPropertyInt", "set_PublicPropertyString", "UsePrivates" };
CheckFieldsPropertiesMethods(myType, expectedFieldNames, expectedPropertyNames, expectedMethodNames);
}
public void TestMultipleDefinitions()
{
// Adding a dependency to an assembly that has internal definitions of public types
// should not result in a collision and break generation.
// Verify usage of the extension GetBestTypeByMetadataName(this Compilation) instead of Compilation.GetTypeByMetadataName().
var referencedSource = @"
namespace System.Text.Json.Serialization
{
internal class JsonSerializerContext { }
internal class JsonSerializableAttribute { }
internal class JsonSourceGenerationOptionsAttribute { }
}";
// Compile the referenced assembly first.
Compilation referencedCompilation = CompilationHelper.CreateCompilation(referencedSource);
// Obtain the image of the referenced assembly.
byte[] referencedImage = CompilationHelper.CreateAssemblyImage(referencedCompilation);
// Generate the code
string source = @"
using System.Text.Json.Serialization;
namespace HelloWorld
{
[JsonSerializable(typeof(HelloWorld.MyType))]
internal partial class JsonContext : JsonSerializerContext
{
}
public class MyType
{
public int MyInt { get; set; }
}
}";
MetadataReference[] additionalReferences = { MetadataReference.CreateFromImage(referencedImage) };
Compilation compilation = CompilationHelper.CreateCompilation(source, additionalReferences);
JsonSourceGenerator generator = new JsonSourceGenerator();
Compilation newCompilation = CompilationHelper.RunGenerators(
compilation,
out ImmutableArray <Diagnostic> generatorDiags, generator);
// Make sure compilation was successful.
Assert.Empty(generatorDiags.Where(diag => diag.Severity.Equals(DiagnosticSeverity.Error)));
Assert.Empty(newCompilation.GetDiagnostics().Where(diag => diag.Severity.Equals(DiagnosticSeverity.Error)));
// Should find the generated type.
Dictionary <string, Type> types = generator.GetSerializableTypes();
Assert.Equal(1, types.Count);
Assert.Equal("HelloWorld.MyType", types.Keys.First());
}
public void RecordDerivedFromRecordInExternalAssembly()
{
// Compile the referenced assembly first.
Compilation referencedCompilation = CompilationHelper.CreateReferencedSimpleLibRecordCompilation();
// Emit the image of the referenced assembly.
byte[] referencedImage = CompilationHelper.CreateAssemblyImage(referencedCompilation);
string source = @"
using System.Text.Json.Serialization;
using ReferencedAssembly;
namespace HelloWorld
{
[JsonSerializable(typeof(AppRecord))]
internal partial class JsonContext : JsonSerializerContext
{
}
internal record AppRecord : LibRecord
{
public string ExtraData { get; set; }
}
}";
MetadataReference[] additionalReferences = { MetadataReference.CreateFromImage(referencedImage) };
Compilation compilation = CompilationHelper.CreateCompilation(source, additionalReferences);
JsonSourceGenerator generator = new JsonSourceGenerator();
Compilation newCompilation = CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
// Make sure compilation was successful.
CheckCompilationDiagnosticsErrors(generatorDiags);
CheckCompilationDiagnosticsErrors(newCompilation.GetDiagnostics());
Dictionary <string, Type> types = generator.GetSerializableTypes();
Assert.Equal(1, types.Count);
Type recordType = types["HelloWorld.AppRecord"];
Assert.Equal("HelloWorld.AppRecord", recordType.FullName);
string[] expectedFieldsNames = { "Country", "PhoneNumber" };
string[] expectedPropertyNames = { "Address1", "Address2", "City", "ExtraData", "Id", "Name", "PostalCode", "State" };
CheckFieldsPropertiesMethods(recordType, expectedFieldsNames, expectedPropertyNames, inspectBaseTypes: true);
Assert.Equal(1, recordType.GetConstructors().Length);
}
public static void LocalJsonSerializableAttributeExpectedShape(string assemblyName, bool includeSTJ)
{
string source = @"using System;
using System.Text.Json.Serialization;
namespace System.Text.Json.Serialization
{
[JsonSerializable(typeof(int))]
[JsonSerializable(typeof(string), TypeInfoPropertyName = ""Str"")]
internal partial class JsonContext : JsonSerializerContext
{
}
[AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
public sealed class JsonSerializableAttribute : JsonAttribute
{
public string TypeInfoPropertyName { get; set; }
public JsonSerializableAttribute(Type type) { }
}
}";
Compilation compilation = CompilationHelper.CreateCompilation(source, additionalReferences: null, assemblyName, includeSTJ);
JsonSourceGenerator generator = new JsonSourceGenerator();
CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
Dictionary <string, Type> types = generator.GetSerializableTypes();
if (includeSTJ)
{
Assert.Equal("System.Int32", types["System.Int32"].FullName);
Assert.Equal("System.String", types["System.String"].FullName);
}
else
{
Assert.Null(types);
}
CompilationHelper.CheckDiagnosticMessages(generatorDiags, DiagnosticSeverity.Info, Array.Empty <string>());
CompilationHelper.CheckDiagnosticMessages(generatorDiags, DiagnosticSeverity.Warning, Array.Empty <string>());
CompilationHelper.CheckDiagnosticMessages(generatorDiags, DiagnosticSeverity.Error, Array.Empty <string>());
}
public void TypeDiscoveryPrimitiveExternalPOCO()
{
// Compile the referenced assembly first.
Compilation referencedCompilation = CompilationHelper.CreateReferencedLocationCompilation();
// Emit the image of the referenced assembly.
byte[] referencedImage = CompilationHelper.CreateAssemblyImage(referencedCompilation);
string source = @"
using System.Text.Json.Serialization;
using ReferencedAssembly;
namespace HelloWorld
{
[JsonSerializable(typeof(HelloWorld.MyType))]
[JsonSerializable(typeof(ReferencedAssembly.Location))]
internal partial class JsonContext : JsonSerializerContext
{
}
public class MyType
{
public int PublicPropertyInt { get; set; }
public string PublicPropertyString { get; set; }
private int PrivatePropertyInt { get; set; }
private string PrivatePropertyString { get; set; }
public double PublicDouble;
public char PublicChar;
private double PrivateDouble;
private char PrivateChar;
public void MyMethod() { }
public void MySecondMethod() { }
public void UsePrivates()
{
PrivateDouble = 0;
PrivateChar = ' ';
double x = PrivateDouble;
string s = PrivateChar.ToString();
}
}
}";
MetadataReference[] additionalReferences = { MetadataReference.CreateFromImage(referencedImage) };
Compilation compilation = CompilationHelper.CreateCompilation(source, additionalReferences);
JsonSourceGenerator generator = new JsonSourceGenerator();
Compilation newCompilation = CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
// Make sure compilation was successful.
CheckCompilationDiagnosticsErrors(generatorDiags);
CheckCompilationDiagnosticsErrors(newCompilation.GetDiagnostics());
Dictionary <string, Type> types = generator.GetSerializableTypes();
// Check base functionality of found types.
Assert.Equal(2, types.Count);
Type myType = types["HelloWorld.MyType"];
Type notMyType = types["ReferencedAssembly.Location"];
// Check for MyType.
Assert.Equal("HelloWorld.MyType", myType.FullName);
// Check for received fields, properties and methods for MyType.
string[] expectedFieldNamesMyType = { "PublicChar", "PublicDouble" };
string[] expectedPropertyNamesMyType = { "PublicPropertyInt", "PublicPropertyString" };
string[] expectedMethodNamesMyType = { "get_PrivatePropertyInt", "get_PrivatePropertyString", "get_PublicPropertyInt", "get_PublicPropertyString", "MyMethod", "MySecondMethod", "set_PrivatePropertyInt", "set_PrivatePropertyString", "set_PublicPropertyInt", "set_PublicPropertyString", "UsePrivates" };
CheckFieldsPropertiesMethods(myType, expectedFieldNamesMyType, expectedPropertyNamesMyType, expectedMethodNamesMyType);
// Check for NotMyType.
Assert.Equal("ReferencedAssembly.Location", notMyType.FullName);
// Check for received fields, properties and methods for NotMyType.
string[] expectedFieldNamesNotMyType = { };
string[] expectedPropertyNamesNotMyType = { "Address1", "Address2", "City", "Country", "Id", "Name", "PhoneNumber", "PostalCode", "State" };
string[] expectedMethodNamesNotMyType = { "get_Address1", "get_Address2", "get_City", "get_Country", "get_Id", "get_Name", "get_PhoneNumber", "get_PostalCode", "get_State",
"set_Address1", "set_Address2", "set_City", "set_Country", "set_Id", "set_Name", "set_PhoneNumber", "set_PostalCode", "set_State" };
CheckFieldsPropertiesMethods(notMyType, expectedFieldNamesNotMyType, expectedPropertyNamesNotMyType, expectedMethodNamesNotMyType);
}
public void CanGetAttributes()
{
string source = @"
using System;
using System.Text.Json.Serialization;
namespace HelloWorld
{
[JsonSerializable(typeof(HelloWorld.MyType))]
internal partial class JsonContext : JsonSerializerContext
{
}
public class MyType
{
[JsonInclude]
public double PublicDouble;
[JsonPropertyName(""PPublicDouble"")]
public char PublicChar;
[JsonIgnore]
private double PrivateDouble;
private char PrivateChar;
public MyType() {{ }}
[JsonConstructor]
public MyType(double d) {{ PrivateDouble = d; }}
[JsonPropertyName(""TestName"")]
public int PublicPropertyInt { get; set; }
[JsonExtensionData]
public string PublicPropertyString { get; set; }
[JsonIgnore]
private int PrivatePropertyInt { get; set; }
private string PrivatePropertyString { get; set; }
[Obsolete(""Testing"", true)]
public void MyMethod() { }
public void MySecondMethod() { }
}
}";
Compilation compilation = CompilationHelper.CreateCompilation(source);
JsonSourceGenerator generator = new JsonSourceGenerator();
Compilation outCompilation = CompilationHelper.RunGenerators(compilation, out ImmutableArray <Diagnostic> generatorDiags, generator);
// Check base functionality of found types.
Dictionary <string, Type> types = generator.GetSerializableTypes();
Assert.Equal(1, types.Count);
Type foundType = types.First().Value;
Assert.Equal("HelloWorld.MyType", foundType.FullName);
// Check for ConstructorInfoWrapper attribute usage.
(string, string[])[] receivedCtorsWithAttributeNames = foundType.GetConstructors().Select(ctor => (ctor.DeclaringType.FullName, ctor.GetCustomAttributesData().Cast <CustomAttributeData>().Select(attributeData => attributeData.AttributeType.Name).ToArray())).ToArray();