public void Visit(ElementNode node, INode parentNode) { XmlName propertyName; //Set ResourcesDictionaries to their parents if (IsResourceDictionary(node) && SetPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName)) { if ((propertyName.LocalName == "Resources" || propertyName.LocalName.EndsWith(".Resources", StringComparison.Ordinal))) { Context.IL.Append(SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node)); return; } } //Only proceed further if the node is a keyless RD if (parentNode is IElementNode && IsResourceDictionary((IElementNode)parentNode) && !((IElementNode)parentNode).Properties.ContainsKey(XmlName.xKey)) { node.Accept(new SetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode); } else if (parentNode is ListNode && IsResourceDictionary((IElementNode)parentNode.Parent) && !((IElementNode)parentNode.Parent).Properties.ContainsKey(XmlName.xKey)) { node.Accept(new SetPropertiesVisitor(Context, stopOnResourceDictionary: false), parentNode); } }
public void Visit(ListNode node, INode parentNode) { XmlName name; if (SetPropertiesVisitor.TryGetPropertyName(node, parentNode, out name)) { node.XmlName = name; } }
public void Visit(ValueNode node, INode parentNode) { Context.Values[node] = node.Value; XmlName propertyName; if (SetPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName)) { if (propertyName.NamespaceURI == "http://schemas.openxmlformats.org/markup-compatibility/2006" && propertyName.LocalName == "Ignorable") { (parentNode.IgnorablePrefixes ?? (parentNode.IgnorablePrefixes = new List <string>())).AddRange( (node.Value as string).Split(',')); } } }
public void Visit(ValueNode node, INode parentNode) { XmlName propertyName; if (!SetPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName)) { if (!IsCollectionItem(node, parentNode)) { return; } string contentProperty; if (!Context.Variables.ContainsKey((IElementNode)parentNode)) { return; } var parentVar = Context.Variables[(IElementNode)parentNode]; if ((contentProperty = SetPropertiesVisitor.GetContentProperty(parentVar.VariableType)) != null) { propertyName = new XmlName(((IElementNode)parentNode).NamespaceURI, contentProperty); } else { return; } } if (node.SkipPrefix((node.NamespaceResolver ?? parentNode.NamespaceResolver)?.LookupPrefix(propertyName.NamespaceURI))) { return; } if (propertyName.NamespaceURI == "http://schemas.openxmlformats.org/markup-compatibility/2006" && propertyName.LocalName == "Ignorable") { (parentNode.IgnorablePrefixes ?? (parentNode.IgnorablePrefixes = new List <string>())).AddRange( (node.Value as string).Split(',')); return; } if (propertyName.LocalName != "MergedWith") { return; } SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node); }
public void Visit(ValueNode node, INode parentNode) { XmlName propertyName; if (!SetPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName)) { if (!IsCollectionItem(node, parentNode)) { return; } string contentProperty; if (!Context.Variables.ContainsKey((IElementNode)parentNode)) { return; } var parentVar = Context.Variables[(IElementNode)parentNode]; if ((contentProperty = SetPropertiesVisitor.GetContentProperty(parentVar.VariableType)) != null) { propertyName = new XmlName(((IElementNode)parentNode).NamespaceURI, contentProperty); } else { return; } } if (propertyName.NamespaceURI == "http://schemas.openxmlformats.org/markup-compatibility/2006" && propertyName.LocalName == "Ignorable") { return; } if (propertyName.LocalName != "MergedWith") { return; } Context.IL.Append(SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node)); }
public void Visit(ElementNode node, INode parentNode) { var typeref = Module.Import(node.XmlType.GetTypeReference(Module, node)); TypeDefinition typedef = typeref.Resolve(); if (IsXaml2009LanguagePrimitive(node)) { var vardef = new VariableDefinition(typeref); Context.Variables [node] = vardef; Context.Body.Variables.Add(vardef); Context.IL.Append(PushValueFromLanguagePrimitive(typedef, node)); Context.IL.Emit(OpCodes.Stloc, vardef); return; } if (typeref.FullName == "Xamarin.Forms.Xaml.StaticExtension") { var markupProvider = new StaticExtension(); var il = markupProvider.ProvideValue(node, Module, Context, out typeref); typeref = Module.Import(typeref); var vardef = new VariableDefinition(typeref); Context.Variables [node] = vardef; Context.Body.Variables.Add(vardef); Context.IL.Append(il); Context.IL.Emit(OpCodes.Stloc, vardef); //clean the node as it has been fully exhausted node.Properties.Clear(); node.CollectionItems.Clear(); return; } MethodDefinition factoryCtorInfo = null; MethodDefinition factoryMethodInfo = null; MethodDefinition parameterizedCtorInfo = null; MethodDefinition ctorInfo = null; if (node.Properties.ContainsKey(XmlName.xArguments) && !node.Properties.ContainsKey(XmlName.xFactoryMethod)) { factoryCtorInfo = typedef.AllMethods().FirstOrDefault(md => md.IsConstructor && !md.IsStatic && md.HasParameters && md.MatchXArguments(node, Module, Context)); if (factoryCtorInfo == null) { throw new XamlParseException( string.Format("No constructors found for {0} with matching x:Arguments", typedef.FullName), node); } ctorInfo = factoryCtorInfo; if (!typedef.IsValueType) //for ctor'ing typedefs, we first have to ldloca before the params { Context.IL.Append(PushCtorXArguments(factoryCtorInfo, node)); } } else if (node.Properties.ContainsKey(XmlName.xFactoryMethod)) { var factoryMethod = (string)(node.Properties [XmlName.xFactoryMethod] as ValueNode).Value; factoryMethodInfo = typedef.AllMethods().FirstOrDefault(md => !md.IsConstructor && md.Name == factoryMethod && md.IsStatic && md.MatchXArguments(node, Module, Context)); if (factoryMethodInfo == null) { throw new XamlParseException( String.Format("No static method found for {0}::{1} ({2})", typedef.FullName, factoryMethod, null), node); } Context.IL.Append(PushCtorXArguments(factoryMethodInfo, node)); } if (ctorInfo == null && factoryMethodInfo == null) { parameterizedCtorInfo = typedef.Methods.FirstOrDefault(md => md.IsConstructor && !md.IsStatic && md.HasParameters && md.Parameters.All( pd => pd.CustomAttributes.Any( ca => ca.AttributeType.FullName == "Xamarin.Forms.ParameterAttribute"))); } if (parameterizedCtorInfo != null && ValidateCtorArguments(parameterizedCtorInfo, node)) { ctorInfo = parameterizedCtorInfo; // IL_0000: ldstr "foo" Context.IL.Append(PushCtorArguments(parameterizedCtorInfo, node)); } ctorInfo = ctorInfo ?? typedef.Methods.FirstOrDefault(md => md.IsConstructor && !md.HasParameters && !md.IsStatic); var ctorinforef = ctorInfo?.ResolveGenericParameters(typeref, Module); var factorymethodinforef = factoryMethodInfo?.ResolveGenericParameters(typeref, Module); var implicitOperatorref = typedef.Methods.FirstOrDefault(md => md.IsPublic && md.IsStatic && md.IsSpecialName && md.Name == "op_Implicit" && md.Parameters [0].ParameterType.FullName == "System.String"); if (ctorinforef != null || factorymethodinforef != null || typedef.IsValueType) { VariableDefinition vardef = new VariableDefinition(typeref); Context.Variables [node] = vardef; Context.Body.Variables.Add(vardef); ValueNode vnode = null; if (node.CollectionItems.Count == 1 && (vnode = node.CollectionItems.First() as ValueNode) != null && vardef.VariableType.IsValueType) { //<Color>Purple</Color> Context.IL.Append(vnode.PushConvertedValue(Context, typeref, new ICustomAttributeProvider [] { typedef }, node.PushServiceProvider(Context), false, true)); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (node.CollectionItems.Count == 1 && (vnode = node.CollectionItems.First() as ValueNode) != null && implicitOperatorref != null) { //<FileImageSource>path.png</FileImageSource> var implicitOperator = Module.Import(implicitOperatorref); Context.IL.Emit(OpCodes.Ldstr, ((ValueNode)(node.CollectionItems.First())).Value as string); Context.IL.Emit(OpCodes.Call, implicitOperator); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (factorymethodinforef != null) { Context.IL.Emit(OpCodes.Call, Module.Import(factorymethodinforef)); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (!typedef.IsValueType) { var ctor = Module.Import(ctorinforef); // IL_0001: newobj instance void class [Xamarin.Forms.Core]Xamarin.Forms.Button::'.ctor'() // IL_0006: stloc.0 Context.IL.Emit(OpCodes.Newobj, ctor); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (ctorInfo != null && node.Properties.ContainsKey(XmlName.xArguments) && !node.Properties.ContainsKey(XmlName.xFactoryMethod) && ctorInfo.MatchXArguments(node, Module, Context)) { // IL_0008: ldloca.s 1 // IL_000a: ldc.i4.1 // IL_000b: call instance void valuetype Test/Foo::'.ctor'(bool) var ctor = Module.Import(ctorinforef); Context.IL.Emit(OpCodes.Ldloca, vardef); Context.IL.Append(PushCtorXArguments(factoryCtorInfo, node)); Context.IL.Emit(OpCodes.Call, ctor); } else { // IL_0000: ldloca.s 0 // IL_0002: initobj Test/Foo Context.IL.Emit(OpCodes.Ldloca, vardef); Context.IL.Emit(OpCodes.Initobj, Module.Import(typedef)); } if (typeref.FullName == "Xamarin.Forms.Xaml.TypeExtension") { var visitor = new SetPropertiesVisitor(Context); foreach (var cnode in node.Properties.Values.ToList()) { cnode.Accept(visitor, node); } foreach (var cnode in node.CollectionItems) { cnode.Accept(visitor, node); } //As we're stripping the TypeExtension bare, keep the type if we need it later (hint: we do need it) INode ntype; if (!node.Properties.TryGetValue(new XmlName("", "TypeName"), out ntype)) { ntype = node.CollectionItems [0]; } var type = ((ValueNode)ntype).Value as string; var prefix = ""; if (type.Contains(":")) { prefix = type.Split(':') [0].Trim(); type = type.Split(':') [1].Trim(); } var namespaceuri = node.NamespaceResolver.LookupNamespace(prefix); Context.TypeExtensions [node] = new XmlType(namespaceuri, type, null).GetTypeReference(Module, node); if (!node.SkipProperties.Contains(new XmlName("", "TypeName"))) { node.SkipProperties.Add(new XmlName("", "TypeName")); } var vardefref = new VariableDefinitionReference(vardef); Context.IL.Append(SetPropertiesVisitor.ProvideValue(vardefref, Context, Module, node)); if (vardef != vardefref.VariableDefinition) { Context.Variables [node] = vardefref.VariableDefinition; Context.Body.Variables.Add(vardefref.VariableDefinition); } } if (typeref.FullName == "Xamarin.Forms.Xaml.ArrayExtension") { var visitor = new SetPropertiesVisitor(Context); foreach (var cnode in node.Properties.Values.ToList()) { cnode.Accept(visitor, node); } foreach (var cnode in node.CollectionItems) { cnode.Accept(visitor, node); } var markupProvider = new ArrayExtension(); var il = markupProvider.ProvideValue(node, Module, Context, out typeref); vardef = new VariableDefinition(typeref); Context.Variables[node] = vardef; Context.Body.Variables.Add(vardef); Context.IL.Append(il); Context.IL.Emit(OpCodes.Stloc, vardef); //clean the node as it has been fully exhausted node.Properties.Remove(new XmlName("", "Type")); node.CollectionItems.Clear(); } } }
public void Visit(ElementNode node, INode parentNode) { var typeref = Module.ImportReference(node.XmlType.GetTypeReference(Module, node)); TypeDefinition typedef = typeref.ResolveCached(); if (IsXaml2009LanguagePrimitive(node)) { var vardef = new VariableDefinition(typeref); Context.Variables [node] = vardef; Context.Body.Variables.Add(vardef); Context.IL.Append(PushValueFromLanguagePrimitive(typedef, node)); Context.IL.Emit(OpCodes.Stloc, vardef); return; } //if this is a MarkupExtension that can be compiled directly, compile and returns the value var compiledMarkupExtensionName = typeref .GetCustomAttribute(Module, ("Xamarin.Forms.Core", "Xamarin.Forms.Xaml", "ProvideCompiledAttribute")) ?.ConstructorArguments?[0].Value as string; Type compiledMarkupExtensionType; ICompiledMarkupExtension markupProvider; if (compiledMarkupExtensionName != null && (compiledMarkupExtensionType = Type.GetType(compiledMarkupExtensionName)) != null && (markupProvider = Activator.CreateInstance(compiledMarkupExtensionType) as ICompiledMarkupExtension) != null) { var il = markupProvider.ProvideValue(node, Module, Context, out typeref); typeref = Module.ImportReference(typeref); var vardef = new VariableDefinition(typeref); Context.Variables[node] = vardef; Context.Body.Variables.Add(vardef); Context.IL.Append(il); Context.IL.Emit(OpCodes.Stloc, vardef); //clean the node as it has been fully exhausted foreach (var prop in node.Properties) { if (!node.SkipProperties.Contains(prop.Key)) { node.SkipProperties.Add(prop.Key); } } node.CollectionItems.Clear(); return; } MethodDefinition factoryCtorInfo = null; MethodDefinition factoryMethodInfo = null; MethodDefinition parameterizedCtorInfo = null; MethodDefinition ctorInfo = null; if (node.Properties.ContainsKey(XmlName.xArguments) && !node.Properties.ContainsKey(XmlName.xFactoryMethod)) { factoryCtorInfo = typedef.AllMethods().FirstOrDefault(md => md.IsConstructor && !md.IsStatic && md.HasParameters && md.MatchXArguments(node, typeref, Module, Context)); if (factoryCtorInfo == null) { throw new XamlParseException( string.Format("No constructors found for {0} with matching x:Arguments", typedef.FullName), node); } ctorInfo = factoryCtorInfo; if (!typedef.IsValueType) //for ctor'ing typedefs, we first have to ldloca before the params { Context.IL.Append(PushCtorXArguments(factoryCtorInfo, node)); } } else if (node.Properties.ContainsKey(XmlName.xFactoryMethod)) { var factoryMethod = (string)(node.Properties [XmlName.xFactoryMethod] as ValueNode).Value; factoryMethodInfo = typedef.AllMethods().FirstOrDefault(md => !md.IsConstructor && md.Name == factoryMethod && md.IsStatic && md.MatchXArguments(node, typeref, Module, Context)); if (factoryMethodInfo == null) { throw new XamlParseException( String.Format("No static method found for {0}::{1} ({2})", typedef.FullName, factoryMethod, null), node); } Context.IL.Append(PushCtorXArguments(factoryMethodInfo, node)); } if (ctorInfo == null && factoryMethodInfo == null) { parameterizedCtorInfo = typedef.Methods.FirstOrDefault(md => md.IsConstructor && !md.IsStatic && md.HasParameters && md.Parameters.All( pd => pd.CustomAttributes.Any( ca => ca.AttributeType.FullName == "Xamarin.Forms.ParameterAttribute"))); } string missingCtorParameter = null; if (parameterizedCtorInfo != null && ValidateCtorArguments(parameterizedCtorInfo, node, out missingCtorParameter)) { ctorInfo = parameterizedCtorInfo; // IL_0000: ldstr "foo" Context.IL.Append(PushCtorArguments(parameterizedCtorInfo, node)); } ctorInfo = ctorInfo ?? typedef.Methods.FirstOrDefault(md => md.IsConstructor && !md.HasParameters && !md.IsStatic); if (parameterizedCtorInfo != null && ctorInfo == null) { //there was a parameterized ctor, we didn't use it throw new XamlParseException($"The Property '{missingCtorParameter}' is required to create a '{typedef.FullName}' object.", node); } var ctorinforef = ctorInfo?.ResolveGenericParameters(typeref, Module); var factorymethodinforef = factoryMethodInfo?.ResolveGenericParameters(typeref, Module); var implicitOperatorref = typedef.Methods.FirstOrDefault(md => md.IsPublic && md.IsStatic && md.IsSpecialName && md.Name == "op_Implicit" && md.Parameters [0].ParameterType.FullName == "System.String"); if (ctorinforef != null || factorymethodinforef != null || typedef.IsValueType) { VariableDefinition vardef = new VariableDefinition(typeref); Context.Variables [node] = vardef; Context.Body.Variables.Add(vardef); ValueNode vnode = null; if (node.CollectionItems.Count == 1 && (vnode = node.CollectionItems.First() as ValueNode) != null && vardef.VariableType.IsValueType) { //<Color>Purple</Color> Context.IL.Append(vnode.PushConvertedValue(Context, typeref, new ICustomAttributeProvider [] { typedef }, node.PushServiceProvider(Context), false, true)); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (node.CollectionItems.Count == 1 && (vnode = node.CollectionItems.First() as ValueNode) != null && implicitOperatorref != null) { //<FileImageSource>path.png</FileImageSource> var implicitOperator = Module.ImportReference(implicitOperatorref); Context.IL.Emit(OpCodes.Ldstr, ((ValueNode)(node.CollectionItems.First())).Value as string); Context.IL.Emit(OpCodes.Call, implicitOperator); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (factorymethodinforef != null) { Context.IL.Emit(OpCodes.Call, Module.ImportReference(factorymethodinforef)); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (!typedef.IsValueType) { var ctor = Module.ImportReference(ctorinforef); // IL_0001: newobj instance void class [Xamarin.Forms.Core]Xamarin.Forms.Button::'.ctor'() // IL_0006: stloc.0 Context.IL.Emit(OpCodes.Newobj, ctor); Context.IL.Emit(OpCodes.Stloc, vardef); } else if (ctorInfo != null && node.Properties.ContainsKey(XmlName.xArguments) && !node.Properties.ContainsKey(XmlName.xFactoryMethod) && ctorInfo.MatchXArguments(node, typeref, Module, Context)) { // IL_0008: ldloca.s 1 // IL_000a: ldc.i4.1 // IL_000b: call instance void valuetype Test/Foo::'.ctor'(bool) var ctor = Module.ImportReference(ctorinforef); Context.IL.Emit(OpCodes.Ldloca, vardef); Context.IL.Append(PushCtorXArguments(factoryCtorInfo, node)); Context.IL.Emit(OpCodes.Call, ctor); } else { // IL_0000: ldloca.s 0 // IL_0002: initobj Test/Foo Context.IL.Emit(OpCodes.Ldloca, vardef); Context.IL.Emit(OpCodes.Initobj, Module.ImportReference(typedef)); } if (typeref.FullName == "Xamarin.Forms.Xaml.ArrayExtension") { var visitor = new SetPropertiesVisitor(Context); foreach (var cnode in node.Properties.Values.ToList()) { cnode.Accept(visitor, node); } foreach (var cnode in node.CollectionItems) { cnode.Accept(visitor, node); } markupProvider = new ArrayExtension(); var il = markupProvider.ProvideValue(node, Module, Context, out typeref); vardef = new VariableDefinition(typeref); Context.Variables[node] = vardef; Context.Body.Variables.Add(vardef); Context.IL.Append(il); Context.IL.Emit(OpCodes.Stloc, vardef); //clean the node as it has been fully exhausted foreach (var prop in node.Properties) { if (!node.SkipProperties.Contains(prop.Key)) { node.SkipProperties.Add(prop.Key); } } node.CollectionItems.Clear(); return; } } }
public void Visit(ElementNode node, INode parentNode) { //Set Resources in ResourcesDictionaries if (IsCollectionItem(node, parentNode) && parentNode is IElementNode) { // Collection element, implicit content, or implicit collection element. CustomAttribute cpAttr; var parentVar = Context.Variables[(IElementNode)parentNode]; if (parentVar.VariableType.ImplementsInterface(Module.Import(typeof(IEnumerable)))) { if ((parentVar.VariableType.FullName == "Xamarin.Forms.ResourceDictionary" || parentVar.VariableType.Resolve().BaseType.FullName == "Xamarin.Forms.ResourceDictionary") && !node.Properties.ContainsKey(XmlName.xKey)) { node.Accept(new SetPropertiesVisitor(Context), parentNode); if (node.XmlType.Name != "Style") { throw new XamlParseException("resources in ResourceDictionary require a x:Key attribute", node); } //if this node is an IMarkupExtension, invoke ProvideValue() and replace the variable var vardef = Context.Variables[node]; var vardefref = new VariableDefinitionReference(vardef); Context.IL.Append(SetPropertiesVisitor.ProvideValue(vardefref, Context, Module, node)); if (vardef != vardefref.VariableDefinition) { vardef = vardefref.VariableDefinition; Context.Body.Variables.Add(vardef); Context.Variables[node] = vardef; } Context.IL.Emit(OpCodes.Ldloc, parentVar); Context.IL.Emit(OpCodes.Ldloc, Context.Variables[node]); Context.IL.Emit(OpCodes.Callvirt, Module.Import( Module.Import(typeof(ResourceDictionary)) .Resolve() .Methods.Single(md => md.Name == "Add" && md.Parameters.Count == 1))); } else if ((parentVar.VariableType.FullName == "Xamarin.Forms.ResourceDictionary" || parentVar.VariableType.Resolve().BaseType.FullName == "Xamarin.Forms.ResourceDictionary") && node.Properties.ContainsKey(XmlName.xKey)) { node.Accept(new SetPropertiesVisitor(Context), parentNode); //if this node is an IMarkupExtension, invoke ProvideValue() and replace the variable var vardef = Context.Variables[node]; var vardefref = new VariableDefinitionReference(vardef); Context.IL.Append(SetPropertiesVisitor.ProvideValue(vardefref, Context, Module, node)); if (vardef != vardefref.VariableDefinition) { vardef = vardefref.VariableDefinition; Context.Body.Variables.Add(vardef); Context.Variables[node] = vardef; } // IL_0013: ldloc.0 // IL_0014: ldstr "key" // IL_0019: ldstr "foo" // IL_001e: callvirt instance void class [Xamarin.Forms.Core]Xamarin.Forms.ResourceDictionary::Add(string, object) Context.IL.Emit(OpCodes.Ldloc, parentVar); Context.IL.Emit(OpCodes.Ldstr, (node.Properties[XmlName.xKey] as ValueNode).Value as string); var varDef = Context.Variables[node]; Context.IL.Emit(OpCodes.Ldloc, varDef); if (varDef.VariableType.IsValueType) { Context.IL.Emit(OpCodes.Box, Module.Import(varDef.VariableType)); } Context.IL.Emit(OpCodes.Callvirt, Module.Import( Module.Import(typeof(ResourceDictionary)) .Resolve() .Methods.Single(md => md.Name == "Add" && md.Parameters.Count == 2))); } } } //Set ResourcesDictionaries to their parents XmlName propertyName; if (SetPropertiesVisitor.TryGetPropertyName(node, parentNode, out propertyName) && (propertyName.LocalName == "Resources" || propertyName.LocalName.EndsWith(".Resources", StringComparison.Ordinal)) && (Context.Variables[node].VariableType.FullName == "Xamarin.Forms.ResourceDictionary" || Context.Variables[node].VariableType.Resolve().BaseType.FullName == "Xamarin.Forms.ResourceDictionary")) { SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node); } }