mirror of https://github.com/mono/CppSharp.git
Dimitar Dobrev
10 years ago
7 changed files with 239 additions and 145 deletions
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using System.Collections.Generic; |
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using System.Linq; |
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namespace CppSharp.AST |
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{ |
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public static class FunctionExtensions |
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{ |
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public static IEnumerable<Parameter> GatherInternalParams(this Function function, |
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bool isItaniumLikeAbi, bool universalDelegate = false) |
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{ |
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var @params = new List<Parameter>(); |
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var method = function as Method; |
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var isInstanceMethod = method != null && !method.IsStatic; |
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var pointer = new QualifiedType(new PointerType(new QualifiedType(new BuiltinType(PrimitiveType.Void)))); |
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if (isInstanceMethod && !isItaniumLikeAbi) |
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{ |
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@params.Add(new Parameter |
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{ |
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QualifiedType = pointer, |
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Name = "instance" |
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}); |
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} |
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if (!function.HasIndirectReturnTypeParameter && |
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isInstanceMethod && isItaniumLikeAbi) |
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{ |
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@params.Add(new Parameter |
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{ |
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QualifiedType = pointer, |
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Name = "instance" |
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}); |
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} |
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var i = 0; |
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foreach (var param in function.Parameters.Where(p => p.Kind != ParameterKind.OperatorParameter)) |
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{ |
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@params.Add(new Parameter |
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{ |
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QualifiedType = universalDelegate && param.Kind == ParameterKind.IndirectReturnType ? |
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pointer : param.QualifiedType, |
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Kind = param.Kind, |
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Usage = param.Usage, |
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Name = universalDelegate ? "arg" + ++i : param.Name |
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}); |
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if (param.Kind == ParameterKind.IndirectReturnType && |
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isInstanceMethod && isItaniumLikeAbi) |
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{ |
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@params.Add(new Parameter |
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{ |
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QualifiedType = pointer, |
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Name = "instance" |
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}); |
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} |
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} |
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if (method != null && method.IsConstructor) |
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{ |
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var @class = (Class) method.Namespace; |
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if (!isItaniumLikeAbi && @class.Layout.HasVirtualBases) |
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{ |
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@params.Add(new Parameter |
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{ |
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QualifiedType = new QualifiedType(new BuiltinType(PrimitiveType.Int)), |
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Name = "__forBases" |
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}); |
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} |
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} |
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return @params; |
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} |
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} |
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} |
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@ -0,0 +1,131 @@
@@ -0,0 +1,131 @@
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Text; |
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using CppSharp.AST; |
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using CppSharp.AST.Extensions; |
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using CppSharp.Generators.CSharp; |
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namespace CppSharp.Passes |
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{ |
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public class DelegatesPass : TranslationUnitPass |
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{ |
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public const string DelegatesNamespace = "Delegates"; |
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public DelegatesPass() |
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{ |
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Options.VisitClassBases = false; |
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Options.VisitFunctionParameters = false; |
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Options.VisitFunctionReturnType = false; |
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Options.VisitNamespaceEnums = false; |
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Options.VisitNamespaceTemplates = false; |
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Options.VisitTemplateArguments = false; |
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} |
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public static Dictionary<Function, TypedefDecl> Delegates |
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{ |
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get { return delegates; } |
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} |
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public override bool VisitLibrary(ASTContext context) |
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{ |
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foreach (var library in Driver.Options.Libraries.Where(l => !libsDelegates.ContainsKey(l))) |
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libsDelegates.Add(library, new Dictionary<string, TypedefDecl>()); |
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var unit = context.TranslationUnits.Last(u => u.IsValid && u.IsGenerated && |
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!u.IsSystemHeader && u.HasDeclarations); |
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namespaceDelegates = new Namespace { Name = DelegatesNamespace, Namespace = unit }; |
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var result = base.VisitLibrary(context); |
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if (namespaceDelegates.Declarations.Count > 0) |
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unit.Declarations.Add(namespaceDelegates); |
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return result; |
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} |
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public override bool VisitMethodDecl(Method method) |
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{ |
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if (!base.VisitMethodDecl(method) || !method.IsVirtual || method.Ignore) |
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return false; |
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var @params = method.GatherInternalParams(Driver.Options.IsItaniumLikeAbi, true).ToList(); |
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var delegateName = GenerateDelegateSignature(@params, method.ReturnType); |
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var existingDelegate = GetExistingDelegate(delegateName); |
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if (existingDelegate != null) |
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{ |
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delegates.Add(method, existingDelegate); |
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return true; |
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} |
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var @delegate = new TypedefDecl |
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{ |
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Name = delegateName, |
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QualifiedType = new QualifiedType( |
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new PointerType( |
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new QualifiedType( |
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new FunctionType |
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{ |
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CallingConvention = method.CallingConvention, |
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IsDependent = method.IsDependent, |
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Parameters = @params, |
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ReturnType = method.ReturnType |
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}))), |
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Namespace = namespaceDelegates |
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}; |
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delegates.Add(method, @delegate); |
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foreach (var library in Driver.Options.Libraries) |
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libsDelegates[library].Add(delegateName, @delegate); |
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namespaceDelegates.Declarations.Add(@delegate); |
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return true; |
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} |
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private TypedefDecl GetExistingDelegate(string delegateName) |
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{ |
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TypedefDecl @delegate = null; |
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if (Driver.Options.Libraries.Count == 0) |
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return @delegates.Values.FirstOrDefault(v => v.Name == delegateName); |
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if (Driver.Options.Libraries.Union(Driver.Symbols.Libraries.SelectMany(l => l.Dependencies)).Any( |
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l => libsDelegates.ContainsKey(l) && libsDelegates[l].TryGetValue(delegateName, out @delegate))) |
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return @delegate; |
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return null; |
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} |
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private string GenerateDelegateSignature(IEnumerable<Parameter> @params, QualifiedType returnType) |
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{ |
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var typePrinter = new CSharpTypePrinter(Driver); |
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typePrinter.PushContext(CSharpTypePrinterContextKind.Native); |
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var typesBuilder = new StringBuilder(); |
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if (!returnType.Type.IsPrimitiveType(PrimitiveType.Void)) |
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{ |
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typesBuilder.Insert(0, returnType.Type.CSharpType(typePrinter)); |
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typesBuilder.Append('_'); |
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} |
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foreach (var parameter in @params) |
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{ |
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typesBuilder.Append(parameter.CSharpType(typePrinter)); |
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typesBuilder.Append('_'); |
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} |
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if (typesBuilder.Length > 0) |
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typesBuilder.Remove(typesBuilder.Length - 1, 1); |
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var delegateName = typesBuilder.Replace("global::System.", string.Empty).Replace( |
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"*", "Ptr").Replace('.', '_').ToString(); |
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if (returnType.Type.IsPrimitiveType(PrimitiveType.Void)) |
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delegateName = "Action_" + delegateName; |
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else |
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delegateName = "Func_" + delegateName; |
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typePrinter.PopContext(); |
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return delegateName; |
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} |
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private Namespace namespaceDelegates; |
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private static readonly Dictionary<string, Dictionary<string, TypedefDecl>> libsDelegates = new Dictionary<string, Dictionary<string, TypedefDecl>>(); |
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private static readonly Dictionary<Function, TypedefDecl> delegates = new Dictionary<Function, TypedefDecl>(); |
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} |
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} |
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