Generator: Remove DriverOptions.Is32Bit

DriverOptions.Is32Bit is used to decide whether to use 4 or 8 byte
pointer size in VTable calculations.

Instead of having a settable Is32Bit property, use
TargetInfo.PointerWidth for this. This allows us to remove the whole
Is32Bit property, and the IS_64_BIT define.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@iki.fi>

build/premake4.lua

@@ -30,9 +30,6 @@ solution "CppSharp"
   configuration "windows"
     defines { "WINDOWS" }
 	
-  configuration "x64"
-    defines { "IS_64_BIT" }
-
   configuration {}
     
   if string.starts(action, "vs") then
@@ -55,4 +52,4 @@ solution "CppSharp"
 
     if string.starts(action, "vs") and os.is_windows() then
       include (srcdir .. "/Parser/Parser.lua")
-    end
+    end

src/Generator/Generators/CSharp/CSharpTextTemplate.cs

@@ -1404,14 +1404,14 @@ namespace CppSharp.Generators.CSharp
                 var vfptr = @class.Layout.VFTables[tableIndex];
                 var size = vfptr.Layout.Components.Count;
                 WriteLine("var vfptr{0} = Marshal.AllocHGlobal({1} * {2});",
-                    tableIndex, size, Driver.Options.Is32Bit ? 4 : 8);
+                    tableIndex, size, Driver.TargetInfo.PointerWidth / 8);
                 WriteLine("_NewVTables[{0}] = vfptr{0}.ToPointer();", tableIndex);
 
                 for (int entryIndex = 0; entryIndex < vfptr.Layout.Components.Count; entryIndex++)
                 {
                     var entry = vfptr.Layout.Components[entryIndex];
                     var offsetInBytes = VTables.GetVTableComponentIndex(@class, entry)
-                        * (Driver.Options.Is32Bit ? 4 : 8);
+                        * (Driver.TargetInfo.PointerWidth / 8);
                     if (entry.Ignore)
                         WriteLine("*(void**)(vfptr{0} + {1}) = *(void**)(native->vfptr{0} + {1});",
                             tableIndex, offsetInBytes);
@@ -1434,14 +1434,14 @@ namespace CppSharp.Generators.CSharp
 
             // reserve space for the offset-to-top and RTTI pointers as well
             var size = entries.Count;
-            WriteLine("var vfptr{0} = Marshal.AllocHGlobal({1} * {2});", 0, size, Driver.Options.Is32Bit ? 4 : 8);
+            WriteLine("var vfptr{0} = Marshal.AllocHGlobal({1} * {2});", 0, size, Driver.TargetInfo.PointerWidth / 8);
             WriteLine("_NewVTables[0] = vfptr0.ToPointer();");
 
             for (int i = 0; i < entries.Count; i++)
             {
                 var entry = entries[i];
                 var offsetInBytes = VTables.GetVTableComponentIndex(@class, entry)
-                    * (Driver.Options.Is32Bit ? 4 : 8);
+                    * (Driver.TargetInfo.PointerWidth / 8);
                 if (entry.Ignore)
                     WriteLine("*(void**)(vfptr0 + {0}) = *(void**)(native->vfptr0 + {0});", offsetInBytes);
                 else
@@ -2104,17 +2104,17 @@ namespace CppSharp.Generators.CSharp
         private void GenerateVirtualTableFunctionCall(Method method, Class @class)
         {
             string delegateId;
-            Write(GetVirtualCallDelegate(method, @class, Driver.Options.Is32Bit, out delegateId));
+            Write(GetVirtualCallDelegate(method, @class, out delegateId));
             GenerateFunctionCall(delegateId, method.Parameters, method);
         }
 
         public string GetVirtualCallDelegate(Method method, Class @class,
-            bool is32Bit, out string delegateId)
+            out string delegateId)
         {
             var virtualCallBuilder = new StringBuilder();
             var i = VTables.GetVTableIndex(method, @class);
             virtualCallBuilder.AppendFormat("void* slot = *(void**) ((({0}.Internal*) {1})->vfptr0 + {2} * {3});",
-                @class.BaseClass.Name, Helpers.InstanceIdentifier, i, is32Bit ? 4 : 8);
+                @class.BaseClass.Name, Helpers.InstanceIdentifier, i, Driver.TargetInfo.PointerWidth / 8);
             virtualCallBuilder.AppendLine();
 
             string @delegate = GetVTableMethodDelegateName((Method) method.OriginalFunction);

src/Generator/Options.cs

@@ -44,11 +44,6 @@ namespace CppSharp
             Encoding = Encoding.ASCII;
 
             CodeFiles = new List<string>();
-
-            Is32Bit = true;
-#if IS_64_BIT
-            Is32Bit = false;
-#endif
         }
 
         // General options
@@ -173,8 +168,6 @@ namespace CppSharp
             get { return GeneratorKind == GeneratorKind.CLI; }
         }
 
-        public bool Is32Bit { get; set; }
-
         public List<string> CodeFiles { get; private set; }
         public readonly List<string> DependentNameSpaces = new List<string>();
         public bool MarshalCharAsManagedChar { get; set; }