static CSFile GeneratePInvokesFromTypes(TypeAggregator types, PlatformName platform, string framework)
{
var fileName = Path.GetFileNameWithoutExtension(framework); // /path/XamGlue.framework -> XamGlue
var dylibFile = Path.Combine(framework, fileName);
var funcs = TLFunctionsForFile(dylibFile, platform);
var ns = new CSNamespace("SwiftRuntimeLibrary.SwiftMarshal");
var use = new CSUsingPackages();
use.And(new CSUsing("System.Runtime.InteropServices"))
.And(new CSUsing("System"))
.And(new CSUsing("System.Collections.Generic"))
.And(new CSUsing("SwiftRuntimeLibrary"));
var csFile = new CSFile(use, new CSNamespace [] { ns });
var csClass = new CSClass(CSVisibility.Internal, $"{fileName}Metadata");
new CSComment(kRobotText).AttachBefore(use);
CSConditionalCompilation.If(PlatformToCSCondition(platform)).AttachBefore(use);
CSConditionalCompilation.Endif.AttachAfter(ns);
ns.Block.Add(csClass);
var typeOntoPinvoke = new List <KeyValuePair <CSBaseExpression, CSBaseExpression> > ();
var typesToProcess = new List <TypeDefinition> ();
typesToProcess.AddRange(types.PublicEnums);
typesToProcess.AddRange(types.PublicStructs);
// pre-sort by function name
typesToProcess.Sort((type1, type2) => String.CompareOrdinal(FuncIDForTypeDefinition(type1), FuncIDForTypeDefinition(type2)));
foreach (var type in typesToProcess)
{
if (type.HasGenericParameters)
{
continue;
}
var moduleName = type.Namespace;
var name = type.Name;
if (TypeAggregator.FilterModuleAndName(platform, moduleName, ref name))
{
var pinvoke = PInvokeForType(type, funcs);
if (pinvoke != null)
{
csClass.Methods.Add(pinvoke);
use.AddIfNotPresent(type.Namespace);
var typeOf = new CSSimpleType(type.FullName).Typeof();
var funcName = pinvoke.Name;
typeOntoPinvoke.Add(new KeyValuePair <CSBaseExpression, CSBaseExpression> (typeOf, funcName));
}
}
}
var initializers = typeOntoPinvoke.Select(typeAndFunc => new CSInitializer(new CSBaseExpression [] { typeAndFunc.Key, typeAndFunc.Value }, false));
var bindingExpr = new CSInitializedType(new CSFunctionCall("Dictionary<Type, Func<SwiftMetatype>>", true), new CSInitializer(initializers, true));
var bindingDecl = new CSFieldDeclaration(new CSSimpleType("Dictionary<Type, Func<SwiftMetatype>>"), "ObjCBindingSwiftMetatypes", bindingExpr, CSVisibility.Internal, true);
csClass.Fields.Add(new CSLine(bindingDecl));
use.Sort((package1, package2) => String.CompareOrdinal(package1.Package, package2.Package));
return(csFile);
}
/// <summary>
/// Creates a list of all types, and a hash table which is initialized on first lookup from C# type
/// to Swift types.
/// </summary>
/// <param name="types">Aggregated types, a subset of which are included</param>
/// <param name="platform">Platform targeted (typically iOS or Mac)</param>
/// <param name="namespaces">Namespaces to include</param>
/// <param name="framework">Name of framework used (typically XamGlue)</param>
/// <returns>CSFile which, when written, has function looking up in hash table as described in summary</returns>
static CSFile GenerateCSharpHashTableFromTypes(TypeAggregator types, PlatformName platform, List <string> namespaces, string framework)
{
var fileName = Path.GetFileNameWithoutExtension(framework);
var ns = new CSNamespace("SwiftRuntimeLibrary.SwiftMarshal");
var use = new CSUsingPackages();
use.And(new CSUsing("System.Runtime.InteropServices"))
.And(new CSUsing("System"))
.And(new CSUsing("System.Collections.Generic"))
.And(new CSUsing("SwiftRuntimeLibrary"));
var csFile = new CSFile(use, new CSNamespace [] { ns });
var csClass = new CSClass(CSVisibility.Internal, $"{fileName}Metadata");
new CSComment(kRobotText).AttachBefore(use);
CSConditionalCompilation.If(PlatformToCSCondition(platform)).AttachBefore(use);
CSConditionalCompilation.Endif.AttachAfter(ns);
ns.Block.Add(csClass);
// collect all possible types, filter and sort
var selectedTypes = new List <TypeDefinition> ();
selectedTypes.AddRange(types.PublicEnums);
selectedTypes.AddRange(types.PublicStructs);
selectedTypes = selectedTypes.FindAll(type => IncludeType(type, namespaces, platform));
selectedTypes.Sort((type1, type2) => String.CompareOrdinal(type1.FullName, type2.FullName));
// add used namespaces to import list, sort list
foreach (var type in selectedTypes)
{
use.AddIfNotPresent(type.Namespace);
}
use.Sort((package1, package2) => String.CompareOrdinal(package1.Package, package2.Package));
// create list of types to translate
var typesForList = selectedTypes.Select(type => new CSSimpleType(type.FullName).Typeof());
var listInitializeExpr = new CSInitializedType(
new CSFunctionCall("List<Type>", true),
new CSInitializer(typesForList, true)
);
var listBindingDecl = new CSFieldDeclaration(new CSSimpleType("List<Type>"), "csImportTypes", listInitializeExpr, CSVisibility.Internal, true);
csClass.Fields.Add(new CSLine(listBindingDecl));
// create pinvoke for function
var dylibFile = Path.Combine(framework, fileName);
var funcs = TLFunctionsForFile(dylibFile, platform);
var handleTranslationCode = new CSIdentifier(@"
public static unsafe bool GetSwiftType (Type t, out SwiftMetatype md) {
using (var swiftStr = new SwiftString (t.FullName)) {
return SwiftCore.GetEnumMetadataByName (swiftStr.SwiftData, out md);
}
}
internal static Dictionary<Type, SwiftMetatype> csImportMeta = null;
internal static bool TryGetImportedMetadata (Type cSharpType, out SwiftMetatype md) {
if (csImportMeta == null) {
csImportMeta = new Dictionary<Type, SwiftMetatype> (csImportTypes.Count);
foreach (var t in csImportTypes) {
SwiftMetatype meta;
GetSwiftType(t, out meta);
csImportMeta [t] = meta;
}
}
return csImportMeta.TryGetValue (cSharpType, out md);
}" );
csClass.Fields.Add(new CSLine(handleTranslationCode, false));
return(csFile);
}
