public void Test1()
{
var fields = new Dictionary <string, Type>
{
{ "Height", typeof(decimal) },
{ "BirthDate", typeof(DateTime) },
{ "Hats", typeof(List <string>) },
};
var assemblyName = new AssemblyName("DynamicTyping1");
var assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);
var moduleBuilder = assemblyBuilder.DefineDynamicModule(assemblyName.Name);
var typeBuilder = moduleBuilder.DefineType("Person", TypeAttributes.Public | TypeAttributes.Class);
// static fields
typeBuilder
.WithField("Id", typeof(Guid))
.WithField("Name", typeof(string));
var(_, parentProperty) = typeBuilder.AddIgnoredField("Parent", typeBuilder);
var(_, childrenProperty) = typeBuilder.AddField("Children", typeof(List <>).MakeGenericType(typeBuilder));
foreach (var(fieldName, fieldType) in fields)
{
typeBuilder.WithField(fieldName, fieldType);
}
var deserializeMethod = AddDeserializeActualMethod(typeBuilder, typeBuilder.AddDeserializeMethod(), parentProperty, childrenProperty);
var type = typeBuilder.CreateType();
_deserializeMethod = type.GetMethod(deserializeMethod.Name);
var resolverType = new RadixResolverBuilder(moduleBuilder).Build(type);
var path = @"C:\Projects\PactTest\DynamicTyping\DynamicTyping.Tests\bin\Debug\output2.dll";
File.Delete(path);
new AssemblyGenerator().GenerateAssembly(resolverType.Assembly, path);
var input = @"{""Id"":""00000000-0000-0000-0000-000000000001"",""Name"":""A"",""Height"":0,""BirthDate"":""0001-01-01T00:00:00"",""Hats"":[""Bowler""],""Children"":[{""Id"":""00000000-0000-0000-0000-000000000002"",""Name"":null,""Height"":1.5,""BirthDate"":""2001-01-01T00:00:00"",""Hats"":null,""Children"":null}]}";
var instance = Deserialize(type, Encoding.UTF8.GetBytes(input));
var str = JsonSerializer.ToJsonString(instance);
_testOutputHelper.WriteLine(str);
var resolver = (IResolver)Activator.CreateInstance(resolverType);
_testOutputHelper.WriteLine(resolver.Resolve(instance, "Id").ToString());
_testOutputHelper.WriteLine(resolver.Resolve(instance, "Missing").ToString());
}
private static (Type Type, Type ResolverType, MethodInfo DeserializeMethod) CreateType()
{
var fields = new Dictionary <string, Type>
{
{ "Name", typeof(string) },
};
for (var i = 1; i < 100; i++)
{
fields.Add($"DecimalProp{i}", typeof(decimal));
}
for (var i = 1; i < 100; i++)
{
fields.Add($"StringProp{i}", typeof(string));
}
var assemblyName = new AssemblyName($"DynamicTyping{Guid.NewGuid():N}");
var assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);
var moduleBuilder = assemblyBuilder.DefineDynamicModule(assemblyName.Name);
var typeBuilder = moduleBuilder.DefineType("Person", TypeAttributes.Public | TypeAttributes.Class);
// static fields
typeBuilder
.WithField("Id", typeof(Guid));
var(_, parentProperty) = typeBuilder.AddIgnoredField("Parent", typeBuilder);
var(_, childrenProperty) = typeBuilder.AddField("Children", typeof(List <>).MakeGenericType(typeBuilder));
foreach (var(fieldName, fieldType) in fields)
{
typeBuilder.WithField(fieldName, fieldType);
}
var innerDeserializeMethod = typeBuilder.AddDeserializeMethod();
var deserializeMethod = AddDeserializeActualMethod(typeBuilder, innerDeserializeMethod, parentProperty, childrenProperty);
var type = typeBuilder.CreateType();
var resolverType = new RadixResolverBuilder(moduleBuilder).Build(type);
return(type, resolverType, type.GetMethod(deserializeMethod.Name));
}
