Add initial C base generator.

Author: tritao

src/CppParser/Bootstrap/Bootstrap.cs

@@ -1427,7 +1427,7 @@ public override void GenerateIncludes()
             "AST::Expr* Parser::WalkExpression(const clang::Expr* Expr)";
     }
 
-    class NativeParserCodeGenerator : CCodeGenerator
+    class NativeParserCodeGenerator : Generators.C.CCodeGenerator
     {
         internal readonly IEnumerable<Declaration> Declarations;
 
@@ -1795,7 +1795,7 @@ public static string GetDeclName(Declaration decl,
 
             if (kind == GeneratorKind.CPlusPlus)
             {
-                if (CCodeGenerator.IsReservedKeyword(name))
+                if (Generators.C.CCodeGenerator.IsReservedKeyword(name))
                     name = $"_{name}";
             }
             else if (kind == GeneratorKind.CSharp)

src/Generator/Driver.cs

@@ -14,6 +14,7 @@
 using Microsoft.CSharp;
 using CppSharp.Types;
 using CppSharp.Generators.Cpp;
+using CppSharp.Generators.C;
 
 namespace CppSharp
 {
@@ -36,6 +37,8 @@ Generator CreateGeneratorFromKind(GeneratorKind kind)
         {
             switch (kind)
             {
+                case GeneratorKind.C:
+                    return new CGenerator(Context);
                 case GeneratorKind.CPlusPlus:
                     return new CppGenerator(Context);
                 case GeneratorKind.CLI:

src/Generator/Generators/C/CCodeGenerator.cs

@@ -1,4 +1,5 @@
 using CppSharp.AST;
+using CppSharp.AST.Extensions;
 using System.Collections.Generic;
 using System.Linq;
 

src/Generator/Generators/C/CGenerator.cs

@@ -0,0 +1,40 @@
+using System.Collections.Generic;
+using CppSharp.AST;
+using CppSharp.Generators.Cpp;
+
+namespace CppSharp.Generators.C
+{
+    /// <summary>
+    /// C generator responsible for driving the generation of source and
+    /// header files.
+    /// </summary>
+    public class CGenerator : Generator
+    {
+        private readonly CppTypePrinter typePrinter;
+
+        public CGenerator(BindingContext context) : base(context)
+        {
+            typePrinter = new CppTypePrinter(Context);
+        }
+
+        public override List<CodeGenerator> Generate(IEnumerable<TranslationUnit> units)
+        {
+            var outputs = new List<CodeGenerator>();
+
+            var header = new CppHeaders(Context, units);
+            outputs.Add(header);
+
+            var source = new CppSources(Context, units);
+            outputs.Add(source);
+
+            return outputs;
+        }
+
+        public override bool SetupPasses() => true;
+
+        protected override string TypePrinterDelegate(Type type)
+        {
+            return type.Visit(typePrinter).ToString();
+        }
+    }
+}

src/Generator/Generators/C/CppGenerator.cs

@@ -5,10 +5,10 @@
 namespace CppSharp.Generators.Cpp
 {
     /// <summary>
-    /// C/C++ generator responsible for driving the generation of source
-    /// and header files.
+    /// C++ generator responsible for driving the generation of source and
+    /// header files.
     /// </summary>
-    public class CppGenerator : Generator
+    public class CppGenerator : CGenerator
     {
         private readonly CppTypePrinter typePrinter;
 

src/Generator/Passes/CheckDuplicatedNamesPass.cs

@@ -4,6 +4,7 @@
 using CppSharp.AST;
 using CppSharp.AST.Extensions;
 using CppSharp.Generators;
+using CppSharp.Generators.C;
 using CppSharp.Generators.CLI;
 using CppSharp.Generators.CSharp;
 using CppSharp.Types;
@@ -198,20 +199,36 @@ public CheckDuplicatedNamesPass()
 
         public override bool VisitASTContext(ASTContext context)
         {
-            TypePrinter typePrinter = null;
-            switch (Options.GeneratorKind)
+            var typePrinter = GetTypePrinter(Options.GeneratorKind, Context);
+            DeclarationName.ParameterTypeComparer.TypePrinter = typePrinter;
+            DeclarationName.ParameterTypeComparer.TypeMaps = Context.TypeMaps;
+            DeclarationName.ParameterTypeComparer.GeneratorKind = Options.GeneratorKind;
+            return base.VisitASTContext(context);
+        }
+
+        private TypePrinter GetTypePrinter(GeneratorKind kind, BindingContext context)
+        {
+            TypePrinter typePrinter;
+            switch (kind)
             {
+                case GeneratorKind.C:
+                    typePrinter = new CppTypePrinter(Context)
+                    {
+                        PrintFlavorKind = CppTypePrintFlavorKind.C
+                    };
+                    break;
+                case GeneratorKind.CPlusPlus:
                 case GeneratorKind.CLI:
                     typePrinter = new CLITypePrinter(Context);
                     break;
                 case GeneratorKind.CSharp:
                     typePrinter = new CSharpTypePrinter(Context);
                     break;
+                default:
+                    throw new System.NotImplementedException();
             }
-            DeclarationName.ParameterTypeComparer.TypePrinter = typePrinter;
-            DeclarationName.ParameterTypeComparer.TypeMaps = Context.TypeMaps;
-            DeclarationName.ParameterTypeComparer.GeneratorKind = Options.GeneratorKind;
-            return base.VisitASTContext(context);
+
+            return typePrinter;
         }
 
         public override bool VisitProperty(Property decl)

src/Generator/Types/TypeMap.cs

@@ -2,6 +2,7 @@
 using CppSharp.AST;
 using CppSharp.Generators;
 using CppSharp.Generators.AST;
+using CppSharp.Generators.C;
 using CppSharp.Generators.CLI;
 using CppSharp.Generators.Cpp;
 using CppSharp.Generators.CSharp;
@@ -54,6 +55,7 @@ public virtual Type SignatureType(GeneratorKind kind, TypePrinterContext ctx)
         {
             switch (kind)
             {
+            case GeneratorKind.C:
             case GeneratorKind.CPlusPlus:
                 return CppSignatureType(ctx);
             case GeneratorKind.CLI:
@@ -69,6 +71,7 @@ public virtual void MarshalToNative(GeneratorKind kind, MarshalContext ctx)
         {
             switch (kind)
             {
+            case GeneratorKind.C:
             case GeneratorKind.CPlusPlus:
                 CppMarshalToNative(ctx);
                 return;
@@ -87,6 +90,7 @@ public virtual void MarshalToManaged(GeneratorKind kind, MarshalContext ctx)
         {
             switch (kind)
             {
+            case GeneratorKind.C:
             case GeneratorKind.CPlusPlus:
                 CppMarshalToManaged(ctx);
                 return;