implements Record class style

src/.editorconfig

@@ -0,0 +1,10 @@
+; What is EditorConfig? http://editorconfig.org/
+
+root = true
+
+; general settings
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = crlf
+insert_final_newline = false

src/NJsonSchema.CodeGeneration.CSharp.Tests/CSharpGeneratorTests.cs

@@ -1401,5 +1401,58 @@ public async Task When_definition_contains_datetime_converter_should_not_be_adde
             Assert.DoesNotContain(@"class DateFormatConverter", code);
             Assert.DoesNotContain(@"[Newtonsoft.Json.JsonConverter(typeof(DateFormatConverter))]", code);
         }
+
+        [Fact]
+        public async Task When_record_no_setter_in_class_and_constructor_provided()
+        {
+            //// Arrange
+            var schema = await JsonSchema4.FromTypeAsync<Address>();
+            var data = schema.ToJson();
+            var generator = new CSharpGenerator(schema, new CSharpGeneratorSettings
+            {
+                ClassStyle = CSharpClassStyle.Record
+            });
+
+            //// Act
+            var output = generator.GenerateFile("Address");
+
+            //// Assert
+            Assert.Contains      (@"public string Street { get; }",      output);
+            Assert.DoesNotContain(@"public string Street { get; set; }", output);
+
+            Assert.Contains("public Address(string Street, string City)", output);
+            Assert.Contains("public Address(string Street, string City)", output);
+        }
+
+        public abstract class AbstractAddress
+        {
+            [JsonProperty("city")]
+            [DefaultValue("Innsmouth")]
+            public string City   { get; set; }
+
+            [JsonProperty("street")]
+            public string Street { get; set; }
+        }
+
+        [Fact]
+        public async Task When_class_is_abstract_constructor_is_protected_for_record()
+        {
+            //// Arrange
+            var schema = await JsonSchema4.FromTypeAsync<AbstractAddress>();
+            var data = schema.ToJson();
+            var generator = new CSharpGenerator(schema, new CSharpGeneratorSettings
+            {
+                ClassStyle = CSharpClassStyle.Record,
+            });
+
+            //// Act
+            var output = generator.GenerateFile("AbstractAddress");
+
+            //// Assert
+            Assert.Contains      (@"public string Street { get; }",      output);
+            Assert.DoesNotContain(@"public string Street { get; set; }", output);
+
+            Assert.Contains("protected AbstractAddress(string street, string city = \"Innsmouth\")", output);
+        }
     }
 }

src/NJsonSchema.CodeGeneration.CSharp/CSharpClassStyle.cs

@@ -20,6 +20,9 @@ public enum CSharpClassStyle
         Inpc,
 
         /// <summary>Generates classes implementing the Prism base class.</summary>
-        Prism
+        Prism,
+
+        /// <summary>Generates Records - read only POCOs (Plain Old C# Objects).</summary>
+        Record
     }
 }

src/NJsonSchema.CodeGeneration.CSharp/Models/ClassTemplateModel.cs

@@ -70,6 +70,9 @@ public class ClassTemplateModel : ClassTemplateModelBase
         /// <summary>Gets a value indicating whether the class style is Prism.</summary>
         public bool RenderPrism => _settings.ClassStyle == CSharpClassStyle.Prism;
 
+        /// <summary>Gets a value indicating whether the class style is Record.</summary>
+        public bool RenderRecord => _settings.ClassStyle == CSharpClassStyle.Record;
+
         /// <summary>Gets a value indicating whether to render ToJson() and FromJson() methods.</summary>
         public bool GenerateJsonMethods => _settings.GenerateJsonMethods;
 

src/NJsonSchema.CodeGeneration.CSharp/NJsonSchema.CodeGeneration.CSharp.csproj

@@ -23,6 +23,7 @@
   </PropertyGroup>
   <ItemGroup>
     <None Remove="Templates\Class.Body.liquid" />
+    <None Remove="Templates\Class.Constructor.Record.liquid" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Templates\Class.Annotations.liquid">
@@ -31,6 +32,7 @@
     </EmbeddedResource>
     <EmbeddedResource Include="Templates\Class.Body.liquid" />
     <EmbeddedResource Include="Templates\Class.Constructor.liquid" />
+    <EmbeddedResource Include="Templates\Class.Constructor.Record.liquid" />
     <EmbeddedResource Include="Templates\Class.FromJson.liquid">
       <CustomToolNamespace>
       </CustomToolNamespace>

src/NJsonSchema.CodeGeneration.CSharp/Templates/Class.Constructor.Record.liquid

@@ -0,0 +1,9 @@
+{% assign skipComma = true -%}
+{% assign sortedProperties = (Properties | sort: "HasDefaultValue") -%}
+[Newtonsoft.Json.JsonConstructor]
+{% if IsAbstract %}protected{% else %}public{% endif %} {{ClassName}}({% for property in sortedProperties -%}{% if skipComma -%}{% assign skipComma = false %}{% else %}, {% endif -%} {{ property.Type }} {{ property.Name }}{% if property.HasDefaultValue == true %} = {{ property.DefaultValue }}{% endif %}{% endfor -%})
+{
+{% for property in Properties -%}
+    this.{{property.PropertyName}} = @{{property.Name}};
+{% endfor -%}
+}

src/NJsonSchema.CodeGeneration.CSharp/Templates/Class.liquid

@@ -18,6 +18,10 @@
 
 {% endif -%}
     {% template Class.Constructor %}
+{% if RenderRecord == true -%}
+    {% template Class.Constructor.Record %}
+
+{% endif -%}
 {% for property in Properties -%}
 {%   if property.HasDescription -%}
     /// <summary>{{ property.Description | csharpdocs }}</summary>
@@ -42,7 +46,7 @@
     [Newtonsoft.Json.JsonConverter(typeof(DateFormatConverter))]
 {%   endif -%}
     {% template Class.Property.Annotations %}
-    public {{ property.Type }} {{ property.PropertyName }}{% if RenderInpc == false and RenderPrism == false %} { get; {% if property.HasSetter %}set; {% endif %}}{% if property.HasDefaultValue %} = {{ property.DefaultValue }};{% endif %}
+    public {{ property.Type }} {{ property.PropertyName }}{% if RenderInpc == false and RenderPrism == false %} { get; {% if property.HasSetter and RenderRecord == false %}set; {% endif %}}{% if property.HasDefaultValue %} = {{ property.DefaultValue }};{% endif %}
 {% else %}
     {
         get { return {{ property.FieldName }}; }

src/NJsonSchema.CodeGeneration/NJsonSchema.CodeGeneration.csproj

@@ -22,7 +22,7 @@
     <WarningsAsErrors />
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="DotLiquid" Version="2.0.200" />
+    <PackageReference Include="DotLiquid" Version="2.0.254" />
     <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard1.3'">