fix: escape keywords in method parameters

README.md

@@ -37,7 +37,7 @@ PM> Install-Package M31.FluentApi
 A package reference will be added to your `csproj` file. Moreover, since this library provides code via source code generation, consumers of your project don't need the reference to `M31.FluentApi`. Therefore, it is recommended to use the `PrivateAssets` metadata tag:
 
 ```xml
-<PackageReference Include="M31.FluentApi" Version="1.11.0" PrivateAssets="all"/>
+<PackageReference Include="M31.FluentApi" Version="1.12.0" PrivateAssets="all"/>
 ```
 
 If you would like to examine the generated code, you may emit it by adding the following lines to your `csproj` file:
@@ -586,4 +586,4 @@ In particular, if your IDE visually indicates that there are errors in your code
 
 This library is free. If you find it valuable and wish to express your support, please leave a star. You are kindly invited to contribute. If you see the possibility for enhancement, please create a GitHub issue and you will receive timely feedback.
 
-Happy coding!
+Happy coding!

src/M31.FluentApi.Generator/CodeBuilding/Parameter.cs

@@ -1,3 +1,5 @@
+using M31.FluentApi.Generator.Commons;
+
 namespace M31.FluentApi.Generator.CodeBuilding;
 
 internal class Parameter : ICode
@@ -10,7 +12,7 @@ internal Parameter(
         ParameterAnnotations? parameterAnnotations = null)
     {
         Type = type;
-        Name = name;
+        Name = CSharpKeywords.IsCSharpKeyword(name) ? $"@{name}" : name;
         DefaultValue = defaultValue;
         GenericTypeParameterPosition = genericTypeParameterPosition;
         ParameterAnnotations = parameterAnnotations;

src/M31.FluentApi.Generator/Commons/CSharpKeywords.cs

@@ -0,0 +1,11 @@
+using Microsoft.CodeAnalysis.CSharp;
+
+namespace M31.FluentApi.Generator.Commons;
+
+internal static class CSharpKeywords
+{
+    internal static bool IsCSharpKeyword(string name)
+    {
+        return SyntaxFacts.GetKeywordKind(name) != SyntaxKind.None;
+    }
+}

src/M31.FluentApi.Generator/M31.FluentApi.Generator.csproj

@@ -11,7 +11,7 @@
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <SuppressDependenciesWhenPacking>true</SuppressDependenciesWhenPacking>
-    <PackageVersion>1.11.0</PackageVersion>
+    <PackageVersion>1.12.0</PackageVersion>
     <Authors>Kevin Schaal</Authors>
     <Description>The generator package for M31.FluentAPI. Don't install this package explicitly, install M31.FluentAPI instead.</Description>
     <PackageTags>fluentapi fluentbuilder fluentinterface fluentdesign fluent codegeneration</PackageTags>

src/M31.FluentApi.Tests/CodeGeneration/TestClasses/Abstract/KeywordClass/CreateStudent.expected.txt

@@ -0,0 +1,73 @@
+// <auto-generated/>
+// This code was generated by the library M31.FluentAPI.
+// Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
+
+#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
+#nullable enable
+
+using System;
+
+namespace M31.FluentApi.Tests.CodeGeneration.TestClasses.Abstract.KeywordClass;
+
+public class CreateStudent :
+    CreateStudent.ICreateStudent,
+    CreateStudent.IWithOperator,
+    CreateStudent.IWithClass,
+    CreateStudent.IWithVoid
+{
+    private readonly Student student;
+
+    private CreateStudent()
+    {
+        student = new Student();
+    }
+
+    public static ICreateStudent InitialStep()
+    {
+        return new CreateStudent();
+    }
+
+    public static IWithClass WithOperator(string @operator)
+    {
+        CreateStudent createStudent = new CreateStudent();
+        createStudent.student.Operator = @operator;
+        return createStudent;
+    }
+
+    IWithClass IWithOperator.WithOperator(string @operator)
+    {
+        student.Operator = @operator;
+        return this;
+    }
+
+    IWithVoid IWithClass.WithClass(string @class)
+    {
+        student.Class = @class;
+        return this;
+    }
+
+    Student IWithVoid.WithVoid(int @void)
+    {
+        student.Void = @void;
+        return student;
+    }
+
+    public interface ICreateStudent : IWithOperator
+    {
+    }
+
+    public interface IWithOperator
+    {
+        IWithClass WithOperator(string @operator);
+    }
+
+    public interface IWithClass
+    {
+        IWithVoid WithClass(string @class);
+    }
+
+    public interface IWithVoid
+    {
+        Student WithVoid(int @void);
+    }
+}

src/M31.FluentApi.Tests/CodeGeneration/TestClasses/Abstract/KeywordClass/CreateStudent.g.cs

@@ -0,0 +1,73 @@
+// <auto-generated/>
+// This code was generated by the library M31.FluentAPI.
+// Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
+
+#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
+#nullable enable
+
+using System;
+
+namespace M31.FluentApi.Tests.CodeGeneration.TestClasses.Abstract.KeywordClass;
+
+public class CreateStudent :
+    CreateStudent.ICreateStudent,
+    CreateStudent.IWithOperator,
+    CreateStudent.IWithClass,
+    CreateStudent.IWithVoid
+{
+    private readonly Student student;
+
+    private CreateStudent()
+    {
+        student = new Student();
+    }
+
+    public static ICreateStudent InitialStep()
+    {
+        return new CreateStudent();
+    }
+
+    public static IWithClass WithOperator(string @operator)
+    {
+        CreateStudent createStudent = new CreateStudent();
+        createStudent.student.Operator = @operator;
+        return createStudent;
+    }
+
+    IWithClass IWithOperator.WithOperator(string @operator)
+    {
+        student.Operator = @operator;
+        return this;
+    }
+
+    IWithVoid IWithClass.WithClass(string @class)
+    {
+        student.Class = @class;
+        return this;
+    }
+
+    Student IWithVoid.WithVoid(int @void)
+    {
+        student.Void = @void;
+        return student;
+    }
+
+    public interface ICreateStudent : IWithOperator
+    {
+    }
+
+    public interface IWithOperator
+    {
+        IWithClass WithOperator(string @operator);
+    }
+
+    public interface IWithClass
+    {
+        IWithVoid WithClass(string @class);
+    }
+
+    public interface IWithVoid
+    {
+        Student WithVoid(int @void);
+    }
+}

src/M31.FluentApi.Tests/CodeGeneration/TestClasses/Abstract/KeywordClass/Student.cs

@@ -0,0 +1,21 @@
+// Non-nullable member is uninitialized
+#pragma warning disable CS8618
+// ReSharper disable All
+
+using System;
+using M31.FluentApi.Attributes;
+
+namespace M31.FluentApi.Tests.CodeGeneration.TestClasses.Abstract.KeywordClass;
+
+[FluentApi]
+public class Student
+{
+    [FluentMember(0)]
+    public string Operator { get; set; }
+
+    [FluentMember(1, "With{Name}")]
+    public string Class { get; set; }
+
+    [FluentMember(2)]
+    public int Void { get; set; }
+}

src/M31.FluentApi.Tests/CodeGeneration/TestDataProvider.cs

@@ -73,6 +73,7 @@ internal class TestDataProvider : IEnumerable<object[]>
                 new object[] { "Abstract", "InheritedClassProtectedSetters", "Student|Person" },
                 new object[] { "Abstract", "InheritedRecord", "Student|Person" },
                 new object[] { "Abstract", "InternalClass", "Student" },
+                new object[] { "Abstract", "KeywordClass", "Student"},
                 new object[] { "Abstract", "NonGenericCollectionMemberClass", "Student" },
                 new object[] { "Abstract", "NullablePredicateAndCollectionClass", "Student" },
                 new object[] { "Abstract", "OneMemberClass", "Student" },

src/M31.FluentApi/M31.FluentApi.csproj

@@ -7,7 +7,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <PackageVersion>1.11.0</PackageVersion>
+    <PackageVersion>1.12.0</PackageVersion>
     <Authors>Kevin Schaal</Authors>
     <Description>Generate fluent builders in C#.</Description>
     <PackageTags>fluentapi fluentbuilder fluentinterface fluentdesign fluent codegeneration</PackageTags>