diff options
author | Stephane Delcroix <stephane@delcroix.org> | 2016-09-08 20:51:01 +0200 |
---|---|---|
committer | Jason Smith <jason.smith@xamarin.com> | 2016-09-08 11:51:01 -0700 |
commit | 1f84a4955c93544192f44ba6af5d3593554dc116 (patch) | |
tree | cb5006606a772b01fcc3b16cf33c9fd537833a19 | |
parent | 3b7d798fdda51a669683ed7d5c3770ebf3adfa77 (diff) | |
download | xamarin-forms-1f84a4955c93544192f44ba6af5d3593554dc116.tar.gz xamarin-forms-1f84a4955c93544192f44ba6af5d3593554dc116.tar.bz2 xamarin-forms-1f84a4955c93544192f44ba6af5d3593554dc116.zip |
[XamlC] replace the runtime type check by compiletime (#334)
7 files changed, 348 insertions, 245 deletions
diff --git a/Xamarin.Forms.Build.Tasks/NodeILExtensions.cs b/Xamarin.Forms.Build.Tasks/NodeILExtensions.cs index 35016694..3902c71b 100644 --- a/Xamarin.Forms.Build.Tasks/NodeILExtensions.cs +++ b/Xamarin.Forms.Build.Tasks/NodeILExtensions.cs @@ -396,7 +396,7 @@ namespace Xamarin.Forms.Build.Tasks #if NOSERVICEPROVIDER yield return Instruction.Create (OpCodes.Ldnull); yield break; - #endif +#endif var ctorinfo = typeof (XamlServiceProvider).GetConstructor(new Type[] { }); var ctor = module.Import(ctorinfo); diff --git a/Xamarin.Forms.Build.Tasks/SetPropertiesVisitor.cs b/Xamarin.Forms.Build.Tasks/SetPropertiesVisitor.cs index 5e11fe1d..462a8962 100644 --- a/Xamarin.Forms.Build.Tasks/SetPropertiesVisitor.cs +++ b/Xamarin.Forms.Build.Tasks/SetPropertiesVisitor.cs @@ -3,9 +3,11 @@ using System.Collections; using System.Collections.Generic; using System.Linq; using System.Xml; + using Mono.Cecil; using Mono.Cecil.Cil; using Mono.Cecil.Rocks; + using Xamarin.Forms.Internals; using Xamarin.Forms.Xaml; @@ -15,7 +17,7 @@ namespace Xamarin.Forms.Build.Tasks { static int dtcount; - readonly IList<XmlName> skips = new List<XmlName> + static readonly IList<XmlName> skips = new List<XmlName> { XmlName.xKey, XmlName.xTypeArguments, @@ -32,21 +34,12 @@ namespace Xamarin.Forms.Build.Tasks } public ILContext Context { get; } + public bool StopOnResourceDictionary { get; } + public bool VisitChildrenFirst { get; } = true; + public bool StopOnDataTemplate { get; } = true; ModuleDefinition Module { get; } - public bool VisitChildrenFirst - { - get { return true; } - } - - public bool StopOnDataTemplate - { - get { return true; } - } - - public bool StopOnResourceDictionary { get; } - public void Visit(ValueNode node, INode parentNode) { //TODO support Label text as element @@ -70,7 +63,7 @@ namespace Xamarin.Forms.Build.Tasks if (propertyName.NamespaceURI == "http://schemas.openxmlformats.org/markup-compatibility/2006" && propertyName.LocalName == "Ignorable") return; - SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node); + Context.IL.Append(SetPropertyValue(Context.Variables [(IElementNode)parentNode], propertyName, node, Context, node)); } public void Visit(MarkupNode node, INode parentNode) @@ -107,7 +100,7 @@ namespace Xamarin.Forms.Build.Tasks if (propertyName == XmlName._CreateContent) SetDataTemplate((IElementNode)parentNode, node, Context, node); else - SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node); + Context.IL.Append(SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node)); } else if (IsCollectionItem(node, parentNode) && parentNode is IElementNode) { @@ -135,7 +128,7 @@ namespace Xamarin.Forms.Build.Tasks var name = new XmlName(node.NamespaceURI, contentProperty); if (skips.Contains(name)) return; - SetPropertyValue(Context.Variables[(IElementNode)parentNode], name, node, Context, node); + Context.IL.Append(SetPropertyValue(Context.Variables[(IElementNode)parentNode], name, node, Context, node)); } } else if (IsCollectionItem(node, parentNode) && parentNode is ListNode) @@ -299,255 +292,355 @@ namespace Xamarin.Forms.Build.Tasks } } - public static void SetPropertyValue(VariableDefinition parent, XmlName propertyName, INode valueNode, - ILContext context, IXmlLineInfo iXmlLineInfo) + public static IEnumerable<Instruction> SetPropertyValue(VariableDefinition parent, XmlName propertyName, INode valueNode, ILContext context, IXmlLineInfo iXmlLineInfo) { - var elementType = parent.VariableType; - var localName = propertyName.LocalName; var module = context.Body.Method.Module; - var br = Instruction.Create(OpCodes.Nop); + + var localName = propertyName.LocalName; TypeReference declaringTypeReference; - var handled = false; //If it's an attached BP, update elementType and propertyName - GetNameAndTypeRef(ref elementType, propertyName.NamespaceURI, ref localName, context, iXmlLineInfo); + var bpOwnerType = parent.VariableType; + GetNameAndTypeRef(ref bpOwnerType, propertyName.NamespaceURI, ref localName, context, iXmlLineInfo); + FieldReference bpRef = bpOwnerType.GetField(fd => fd.Name == localName + "Property" && + fd.IsStatic && + fd.IsPublic, out declaringTypeReference); + if (bpRef != null) { + bpRef = module.Import(bpRef.ResolveGenericParameters(declaringTypeReference)); + bpRef.FieldType = module.Import(bpRef.FieldType); + } //If the target is an event, connect + if (CanConnectEvent(parent, localName)) + return ConnectEvent(parent, localName, valueNode, iXmlLineInfo, context); + + //If Value is DynamicResource, SetDynamicResource + if (CanSetDynamicResource(bpRef, valueNode, context)) + return SetDynamicResource(parent, bpRef, valueNode as IElementNode, iXmlLineInfo, context); + + //If Value is a BindingBase and target is a BP, SetBinding + if (CanSetBinding(bpRef, valueNode, context)) + return SetBinding(parent, bpRef, valueNode as IElementNode, iXmlLineInfo, context); + + //If it's a BP, SetValue () + if (CanSetValue(bpRef, valueNode, iXmlLineInfo, context)) + return SetValue(parent, bpRef, valueNode, iXmlLineInfo, context); + + //If it's a property, set it + if (CanSet(parent, localName, valueNode, context)) + return Set(parent, localName, valueNode, iXmlLineInfo, context); + + //If it's an already initialized property, add to it + if (CanAdd(parent, localName, valueNode, context)) + return Add(parent, localName, valueNode, iXmlLineInfo, context); + + throw new XamlParseException($"No property, bindable property, or event found for '{localName}'", iXmlLineInfo); + } + + static bool CanConnectEvent(VariableDefinition parent, string localName) + { + return parent.VariableType.GetEvent(ed => ed.Name == localName) != null; + } + + static IEnumerable<Instruction> ConnectEvent(VariableDefinition parent, string localName, INode valueNode, IXmlLineInfo iXmlLineInfo, ILContext context) + { + var elementType = parent.VariableType; + var module = context.Body.Method.Module; + var eventinfo = elementType.GetEvent(ed => ed.Name == localName); + // IL_0007: ldloc.0 // IL_0008: ldarg.0 // // IL_0009: ldftn instance void class Xamarin.Forms.Xaml.XamlcTests.MyPage::OnButtonClicked(object, class [mscorlib]System.EventArgs) - //OR, if the handler is virtual +//OR, if the handler is virtual // IL_000x: ldarg.0 // IL_0009: ldvirtftn instance void class Xamarin.Forms.Xaml.XamlcTests.MyPage::OnButtonClicked(object, class [mscorlib]System.EventArgs) // // IL_000f: newobj instance void class [mscorlib]System.EventHandler::'.ctor'(object, native int) // IL_0014: callvirt instance void class [Xamarin.Forms.Core]Xamarin.Forms.Button::add_Clicked(class [mscorlib]System.EventHandler) - var eventinfo = elementType.GetEvent(ed => ed.Name == localName); - if (eventinfo != null) - { - var value = ((ValueNode)valueNode).Value; + var value = ((ValueNode)valueNode).Value; - context.IL.Emit(OpCodes.Ldloc, parent); - if (context.Root is VariableDefinition) - context.IL.Emit(OpCodes.Ldloc, context.Root as VariableDefinition); - else if (context.Root is FieldDefinition) - { - context.IL.Emit(OpCodes.Ldarg_0); - context.IL.Emit(OpCodes.Ldfld, context.Root as FieldDefinition); - } - else - throw new InvalidProgramException(); - var declaringType = context.Body.Method.DeclaringType; - if (declaringType.IsNested) - declaringType = declaringType.DeclaringType; - var handler = declaringType.AllMethods().FirstOrDefault(md => md.Name == value as string); - if (handler == null) - { - throw new XamlParseException( - string.Format("EventHandler \"{0}\" not found in type \"{1}\"", value, context.Body.Method.DeclaringType.FullName), - iXmlLineInfo); - } - if (handler.IsVirtual) - { - context.IL.Emit(OpCodes.Ldarg_0); - context.IL.Emit(OpCodes.Ldvirtftn, handler); - } - else - context.IL.Emit(OpCodes.Ldftn, handler); + yield return Instruction.Create(OpCodes.Ldloc, parent); + if (context.Root is VariableDefinition) + yield return Instruction.Create(OpCodes.Ldloc, context.Root as VariableDefinition); + else if (context.Root is FieldDefinition) { + yield return Instruction.Create(OpCodes.Ldarg_0); + yield return Instruction.Create(OpCodes.Ldfld, context.Root as FieldDefinition); + } else + throw new InvalidProgramException(); + var declaringType = context.Body.Method.DeclaringType; + while (declaringType.IsNested) + declaringType = declaringType.DeclaringType; + var handler = declaringType.AllMethods().FirstOrDefault(md => md.Name == value as string); + if (handler == null) + throw new XamlParseException($"EventHandler \"{value}\" not found in type \"{context.Body.Method.DeclaringType.FullName}\"", iXmlLineInfo); + if (handler.IsVirtual) { + yield return Instruction.Create(OpCodes.Ldarg_0); + yield return Instruction.Create(OpCodes.Ldvirtftn, handler); + } else + yield return Instruction.Create(OpCodes.Ldftn, handler); + + //FIXME: eventually get the right ctor instead fo the First() one, just in case another one could exists (not even sure it's possible). + var ctor = module.Import(eventinfo.EventType.Resolve().GetConstructors().First()); + ctor = ctor.ResolveGenericParameters(eventinfo.EventType, module); + yield return Instruction.Create(OpCodes.Newobj, module.Import(ctor)); + yield return Instruction.Create(OpCodes.Callvirt, module.Import(eventinfo.AddMethod)); + } - //FIXME: eventually get the right ctor instead fo the First() one, just in case another one could exists (not even sure it's possible). - var ctor = module.Import(eventinfo.EventType.Resolve().GetConstructors().First()); - ctor = ctor.ResolveGenericParameters(eventinfo.EventType, module); - context.IL.Emit(OpCodes.Newobj, module.Import(ctor)); - context.IL.Emit(OpCodes.Callvirt, module.Import(eventinfo.AddMethod)); - return; - } + static bool CanSetDynamicResource(FieldReference bpRef, INode valueNode, ILContext context) + { + if (bpRef == null) + return false; + var elementNode = valueNode as IElementNode; + if (elementNode == null) + return false; + + VariableDefinition varValue; + if (!context.Variables.TryGetValue(valueNode as IElementNode, out varValue)) + return false; + return varValue.VariableType.FullName == typeof(DynamicResource).FullName; + } - FieldReference bpRef = elementType.GetField(fd => fd.Name == localName + "Property" && fd.IsStatic && fd.IsPublic, - out declaringTypeReference); - if (bpRef != null) - { - bpRef = module.Import(bpRef.ResolveGenericParameters(declaringTypeReference)); - bpRef.FieldType = module.Import(bpRef.FieldType); - } + static IEnumerable<Instruction> SetDynamicResource(VariableDefinition parent, FieldReference bpRef, IElementNode elementNode, IXmlLineInfo iXmlLineInfo, ILContext context) + { + var module = context.Body.Method.Module; + var varValue = context.Variables [elementNode]; + var setDynamicResource = module.Import(typeof(IDynamicResourceHandler)).Resolve().Methods.First(m => m.Name == "SetDynamicResource"); + var getKey = typeof(DynamicResource).GetProperty("Key").GetMethod; + + yield return Instruction.Create(OpCodes.Ldloc, parent); + yield return Instruction.Create(OpCodes.Ldsfld, bpRef); + yield return Instruction.Create(OpCodes.Ldloc, varValue); + yield return Instruction.Create(OpCodes.Callvirt, module.Import(getKey)); + yield return Instruction.Create(OpCodes.Callvirt, module.Import(setDynamicResource)); + } + + static bool CanSetBinding(FieldReference bpRef, INode valueNode, ILContext context) + { + var module = context.Body.Method.Module; + + if (bpRef == null) + return false; + var elementNode = valueNode as IElementNode; + if (elementNode == null) + return false; - //If Value is DynamicResource, SetDynamicResource VariableDefinition varValue; - if (bpRef != null && valueNode is IElementNode && - context.Variables.TryGetValue(valueNode as IElementNode, out varValue) && - varValue.VariableType.FullName == typeof (DynamicResource).FullName) - { - var setDynamicResource = - module.Import(typeof (IDynamicResourceHandler)).Resolve().Methods.First(m => m.Name == "SetDynamicResource"); - var getKey = typeof (DynamicResource).GetProperty("Key").GetMethod; - - context.IL.Emit(OpCodes.Ldloc, parent); - context.IL.Emit(OpCodes.Ldsfld, bpRef); - context.IL.Emit(OpCodes.Ldloc, varValue); - context.IL.Emit(OpCodes.Callvirt, module.Import(getKey)); - context.IL.Emit(OpCodes.Callvirt, module.Import(setDynamicResource)); - return; - } + if (!context.Variables.TryGetValue(valueNode as IElementNode, out varValue)) + return false; + return varValue.VariableType.InheritsFromOrImplements(module.Import(typeof(BindingBase))); + } - //If Value is a BindingBase and target is a BP, SetBinding - if (bpRef != null && valueNode is IElementNode && - context.Variables.TryGetValue(valueNode as IElementNode, out varValue) && - varValue.VariableType.InheritsFromOrImplements(module.Import(typeof (BindingBase)))) - { - //TODO: check if parent is a BP - var setBinding = typeof (BindableObject).GetMethod("SetBinding", - new[] { typeof (BindableProperty), typeof (BindingBase) }); - - context.IL.Emit(OpCodes.Ldloc, parent); - context.IL.Emit(OpCodes.Ldsfld, bpRef); - context.IL.Emit(OpCodes.Ldloc, varValue); - context.IL.Emit(OpCodes.Callvirt, module.Import(setBinding)); - return; - } + static IEnumerable<Instruction> SetBinding(VariableDefinition parent, FieldReference bpRef, IElementNode elementNode, IXmlLineInfo iXmlLineInfo, ILContext context) + { + var module = context.Body.Method.Module; + var varValue = context.Variables [elementNode]; + + //TODO: check if parent is a BP + var setBinding = typeof(BindableObject).GetMethod("SetBinding", new [] { typeof(BindableProperty), typeof(BindingBase) }); + + yield return Instruction.Create(OpCodes.Ldloc, parent); + yield return Instruction.Create(OpCodes.Ldsfld, bpRef); + yield return Instruction.Create(OpCodes.Ldloc, varValue); + yield return Instruction.Create(OpCodes.Callvirt, module.Import(setBinding)); + } + + static TypeReference GetBindablePropertyType(FieldReference bpRef, IXmlLineInfo iXmlLineInfo, ILContext context) + { + var module = context.Body.Method.Module; + + if (!bpRef.Name.EndsWith("Property", StringComparison.InvariantCulture)) + throw new XamlParseException($"The name of the bindable property {bpRef.Name} does not ends with \"Property\". This is the kind of convention the world is build upon, a bit like Planck's constant.", iXmlLineInfo); + var bpName = bpRef.Name.Substring(0, bpRef.Name.Length - 8); + var owner = bpRef.DeclaringType; + TypeReference _; + + var getter = owner.GetProperty(pd => pd.Name == bpName, out _)?.GetMethod; + if (getter == null || getter.IsStatic || !getter.IsPublic) + getter = null; + getter = getter ?? owner.GetMethods(md => md.Name == $"Get{bpName}" && md.IsStatic && md.IsPublic && md.Parameters.Count == 1, module).FirstOrDefault()?.Item1; + + if (getter == null) + throw new XamlParseException($"Missing a public static Get{bpName} or a public instance property getter for the attached property \"{bpRef.DeclaringType}.{bpRef.Name}\"", iXmlLineInfo); + return getter.ReturnType; + } + + static bool CanSetValue(FieldReference bpRef, INode node, IXmlLineInfo iXmlLineInfo, ILContext context) + { + if (bpRef == null) + return false; + + if (node is ValueNode) + return true; + + var elementNode = node as IElementNode; + if (elementNode == null) + return false; + + VariableDefinition varValue; + if (!context.Variables.TryGetValue(elementNode, out varValue)) + return false; + + var bpTypeRef = GetBindablePropertyType(bpRef, iXmlLineInfo, context); + return varValue.VariableType.InheritsFromOrImplements(bpTypeRef); + } + + static IEnumerable<Instruction> SetValue(VariableDefinition parent, FieldReference bpRef, INode node, IXmlLineInfo iXmlLineInfo, ILContext context) + { + var setValue = typeof(BindableObject).GetMethod("SetValue", new [] { typeof(BindableProperty), typeof(object) }); + var valueNode = node as ValueNode; + var elementNode = node as IElementNode; + var module = context.Body.Method.Module; - //If it's a BP, SetValue () // IL_0007: ldloc.0 // IL_0008: ldsfld class [Xamarin.Forms.Core]Xamarin.Forms.BindableProperty [Xamarin.Forms.Core]Xamarin.Forms.Label::TextProperty // IL_000d: ldstr "foo" // IL_0012: callvirt instance void class [Xamarin.Forms.Core]Xamarin.Forms.BindableObject::SetValue(class [Xamarin.Forms.Core]Xamarin.Forms.BindableProperty, object) - if (bpRef != null) - { - //TODO: check if parent is a BP - var setValue = typeof (BindableObject).GetMethod("SetValue", new[] { typeof (BindableProperty), typeof (object) }); - if (valueNode is ValueNode) - { - context.IL.Emit(OpCodes.Ldloc, parent); - context.IL.Emit(OpCodes.Ldsfld, bpRef); - context.IL.Append(((ValueNode)valueNode).PushConvertedValue(context, bpRef, valueNode.PushServiceProvider(context), - true, false)); - context.IL.Emit(OpCodes.Callvirt, module.Import(setValue)); - return; - } - if (valueNode is IElementNode) - { - var getPropertyReturnType = module.Import(typeof (BindableProperty).GetProperty("ReturnType").GetGetMethod()); - //FIXME: this should check for inheritance too - var isInstanceOfType = module.Import(typeof (Type).GetMethod("IsInstanceOfType", new[] { typeof (object) })); - var brfalse = Instruction.Create(OpCodes.Nop); - - context.IL.Emit(OpCodes.Ldsfld, bpRef); - context.IL.Emit(OpCodes.Call, getPropertyReturnType); - context.IL.Emit(OpCodes.Ldloc, context.Variables[valueNode as IElementNode]); - if (context.Variables[valueNode as IElementNode].VariableType.IsValueType) - context.IL.Emit(OpCodes.Box, context.Variables[valueNode as IElementNode].VariableType); - context.IL.Emit(OpCodes.Callvirt, isInstanceOfType); - context.IL.Emit(OpCodes.Brfalse, brfalse); - context.IL.Emit(OpCodes.Ldloc, parent); - context.IL.Emit(OpCodes.Ldsfld, bpRef); - context.IL.Emit(OpCodes.Ldloc, context.Variables[(IElementNode)valueNode]); - if (context.Variables[valueNode as IElementNode].VariableType.IsValueType) - context.IL.Emit(OpCodes.Box, context.Variables[valueNode as IElementNode].VariableType); - context.IL.Emit(OpCodes.Callvirt, module.Import(setValue)); - context.IL.Emit(OpCodes.Br, br); - context.IL.Append(brfalse); - handled = true; - } + yield return Instruction.Create(OpCodes.Ldloc, parent); + yield return Instruction.Create(OpCodes.Ldsfld, bpRef); + + if (valueNode != null) { + foreach (var instruction in valueNode.PushConvertedValue(context, bpRef, valueNode.PushServiceProvider(context), true, false)) + yield return instruction; + } else if (elementNode != null) { + yield return Instruction.Create(OpCodes.Ldloc, context.Variables [elementNode]); + if (context.Variables [elementNode].VariableType.IsValueType) + yield return Instruction.Create(OpCodes.Box, context.Variables [elementNode].VariableType); } - //If it's a property, set it -// IL_0007: ldloc.0 + yield return Instruction.Create(OpCodes.Callvirt, module.Import(setValue)); + } + + static bool CanSet(VariableDefinition parent, string localName, INode node, ILContext context) + { + var module = context.Body.Method.Module; + TypeReference declaringTypeReference; + var property = parent.VariableType.GetProperty(pd => pd.Name == localName, out declaringTypeReference); + if (property == null) + return false; + var propertySetter = property.SetMethod; + if (propertySetter == null || !propertySetter.IsPublic || propertySetter.IsStatic) + return false; + + if (node is ValueNode) + return true; + + var elementNode = node as IElementNode; + if (elementNode == null) + return false; + + var vardef = context.Variables [elementNode]; + var propertyType = property.ResolveGenericPropertyType(declaringTypeReference); + var implicitOperator = vardef.VariableType.GetImplicitOperatorTo(propertyType, module); + + if (implicitOperator != null) + return true; + if (vardef.VariableType.InheritsFromOrImplements(propertyType)) + return true; + if (propertyType.FullName == "System.Object") + return true; + + //I'd like to get rid of this condition. This comment used to be //TODO replace latest check by a runtime type check + if (vardef.VariableType.FullName == "System.Object") + return true; + + return false; + } + + static IEnumerable<Instruction> Set(VariableDefinition parent, string localName, INode node, IXmlLineInfo iXmlLineInfo, ILContext context) + { + var module = context.Body.Method.Module; + TypeReference declaringTypeReference; + var property = parent.VariableType.GetProperty(pd => pd.Name == localName, out declaringTypeReference); + var propertySetter = property.SetMethod; + +// IL_0007: ldloc.0 // IL_0008: ldstr "foo" // IL_000d: callvirt instance void class [Xamarin.Forms.Core]Xamarin.Forms.Label::set_Text(string) - PropertyDefinition property = elementType.GetProperty(pd => pd.Name == localName, out declaringTypeReference); - MethodDefinition propertySetter; - if (property != null && (propertySetter = property.SetMethod) != null && propertySetter.IsPublic) - { - module.Import(elementType.Resolve()); - var propertySetterRef = - module.Import(module.Import(propertySetter).ResolveGenericParameters(declaringTypeReference, module)); - propertySetterRef.ImportTypes(module); - var propertyType = property.ResolveGenericPropertyType(declaringTypeReference); - ValueNode vnode = null; - - if ((vnode = valueNode as ValueNode) != null) - { - context.IL.Emit(OpCodes.Ldloc, parent); - context.IL.Append(vnode.PushConvertedValue(context, - propertyType, - new ICustomAttributeProvider[] { property, propertyType.Resolve() }, - valueNode.PushServiceProvider(context), false, true)); - context.IL.Emit(OpCodes.Callvirt, propertySetterRef); - - context.IL.Append(br); - return; - } - if (valueNode is IElementNode) - { - var vardef = context.Variables[(ElementNode)valueNode]; - var implicitOperator = vardef.VariableType.GetImplicitOperatorTo(propertyType, module); - //TODO replace latest check by a runtime type check - if (implicitOperator != null || vardef.VariableType.InheritsFromOrImplements(propertyType) || - propertyType.FullName == "System.Object" || vardef.VariableType.FullName == "System.Object") - { - context.IL.Emit(OpCodes.Ldloc, parent); - context.IL.Emit(OpCodes.Ldloc, vardef); - if (implicitOperator != null) - { -// IL_000f: call !0 class [Xamarin.Forms.Core]Xamarin.Forms.OnPlatform`1<bool>::op_Implicit(class [Xamarin.Forms.Core]Xamarin.Forms.OnPlatform`1<!0>) - context.IL.Emit(OpCodes.Call, module.Import(implicitOperator)); - } - else if (!vardef.VariableType.IsValueType && propertyType.IsValueType) - context.IL.Emit(OpCodes.Unbox_Any, module.Import(propertyType)); - else if (vardef.VariableType.IsValueType && propertyType.FullName == "System.Object") - context.IL.Emit(OpCodes.Box, vardef.VariableType); - context.IL.Emit(OpCodes.Callvirt, propertySetterRef); - context.IL.Append(br); - return; - } - handled = true; - } - } + module.Import(parent.VariableType.Resolve()); + var propertySetterRef = module.Import(module.Import(propertySetter).ResolveGenericParameters(declaringTypeReference, module)); + propertySetterRef.ImportTypes(module); + var propertyType = property.ResolveGenericPropertyType(declaringTypeReference); + var valueNode = node as ValueNode; + var elementNode = node as IElementNode; - //If it's an already initialized property, add to it - MethodDefinition propertyGetter; - //TODO: check if property is assigned - if (property != null && (propertyGetter = property.GetMethod) != null && propertyGetter.IsPublic) - { - var propertyGetterRef = module.Import(propertyGetter); - propertyGetterRef = module.Import(propertyGetterRef.ResolveGenericParameters(declaringTypeReference, module)); - var propertyType = propertyGetterRef.ReturnType.ResolveGenericParameters(declaringTypeReference); - var vardef = context.Variables [(ElementNode)valueNode]; - - //TODO check md.Parameters[0] type - var adderTuple = - propertyType.GetMethods(md => md.Name == "Add" && md.Parameters.Count == 1, module).FirstOrDefault(); - if (adderTuple != null) - { - var adderRef = module.Import(adderTuple.Item1); - adderRef = module.Import(adderRef.ResolveGenericParameters(adderTuple.Item2, module)); - var childType = GetParameterType(adderRef.Parameters [0]); - var implicitOperator = vardef.VariableType.GetImplicitOperatorTo(childType, module); + yield return Instruction.Create(OpCodes.Ldloc, parent); - if (valueNode is IElementNode) - { - context.IL.Emit(OpCodes.Ldloc, parent); - context.IL.Emit(OpCodes.Callvirt, propertyGetterRef); - context.IL.Emit(OpCodes.Ldloc, vardef); - if (implicitOperator != null) - context.IL.Emit(OpCodes.Call, module.Import(implicitOperator)); - context.IL.Emit(OpCodes.Callvirt, adderRef); - if (adderRef.ReturnType.FullName != "System.Void") - context.IL.Emit(OpCodes.Pop); - context.IL.Append(br); - return; - } - } - } - if (!handled) - { - throw new XamlParseException(string.Format("No property, bindable property, or event found for '{0}'", localName), - iXmlLineInfo); + if (valueNode != null) { + foreach (var instruction in valueNode.PushConvertedValue(context, propertyType, new ICustomAttributeProvider [] { property, propertyType.Resolve() }, valueNode.PushServiceProvider(context), false, true)) + yield return instruction; + yield return Instruction.Create(OpCodes.Callvirt, propertySetterRef); + } else if (elementNode != null) { + var vardef = context.Variables [elementNode]; + var implicitOperator = vardef.VariableType.GetImplicitOperatorTo(propertyType, module); + yield return Instruction.Create(OpCodes.Ldloc, vardef); + if (implicitOperator != null) { +// IL_000f: call !0 class [Xamarin.Forms.Core]Xamarin.Forms.OnPlatform`1<bool>::op_Implicit(class [Xamarin.Forms.Core]Xamarin.Forms.OnPlatform`1<!0>) + yield return Instruction.Create(OpCodes.Call, module.Import(implicitOperator)); + } else if (!vardef.VariableType.IsValueType && propertyType.IsValueType) + yield return Instruction.Create(OpCodes.Unbox_Any, module.Import(propertyType)); + else if (vardef.VariableType.IsValueType && propertyType.FullName == "System.Object") + yield return Instruction.Create(OpCodes.Box, vardef.VariableType); + yield return Instruction.Create(OpCodes.Callvirt, propertySetterRef); } - context.IL.Append(br); + } + + static bool CanAdd(VariableDefinition parent, string localName, INode node, ILContext context) + { + var module = context.Body.Method.Module; + TypeReference declaringTypeReference; + var property = parent.VariableType.GetProperty(pd => pd.Name == localName, out declaringTypeReference); + if (property == null) + return false; + var propertyGetter = property.GetMethod; + if (propertyGetter == null || !propertyGetter.IsPublic || propertyGetter.IsStatic) + return false; + var elementNode = node as IElementNode; + if (elementNode == null) + return false; + + var vardef = context.Variables [elementNode]; + var propertyGetterRef = module.Import(propertyGetter); + propertyGetterRef = module.Import(propertyGetterRef.ResolveGenericParameters(declaringTypeReference, module)); + var propertyType = propertyGetterRef.ReturnType.ResolveGenericParameters(declaringTypeReference); + + //TODO check md.Parameters[0] type + var adderTuple = propertyType.GetMethods(md => md.Name == "Add" && md.Parameters.Count == 1, module).FirstOrDefault(); + if (adderTuple == null) + return false; + + return true; + } + + static IEnumerable<Instruction> Add(VariableDefinition parent, string localName, INode node, IXmlLineInfo iXmlLineInfo, ILContext context) + { + var module = context.Body.Method.Module; + TypeReference declaringTypeReference; + var property = parent.VariableType.GetProperty(pd => pd.Name == localName, out declaringTypeReference); + var propertyGetter = property.GetMethod; + var elementNode = node as IElementNode; + var vardef = context.Variables [elementNode]; + var propertyGetterRef = module.Import(propertyGetter); + propertyGetterRef = module.Import(propertyGetterRef.ResolveGenericParameters(declaringTypeReference, module)); + var propertyType = propertyGetterRef.ReturnType.ResolveGenericParameters(declaringTypeReference); + //TODO check md.Parameters[0] type + var adderTuple = propertyType.GetMethods(md => md.Name == "Add" && md.Parameters.Count == 1, module).FirstOrDefault(); + var adderRef = module.Import(adderTuple.Item1); + adderRef = module.Import(adderRef.ResolveGenericParameters(adderTuple.Item2, module)); + var childType = GetParameterType(adderRef.Parameters [0]); + var implicitOperator = vardef.VariableType.GetImplicitOperatorTo(childType, module); + + yield return Instruction.Create(OpCodes.Ldloc, parent); + yield return Instruction.Create(OpCodes.Callvirt, propertyGetterRef); + yield return Instruction.Create(OpCodes.Ldloc, vardef); + if (implicitOperator != null) + yield return Instruction.Create(OpCodes.Call, module.Import(implicitOperator)); + yield return Instruction.Create(OpCodes.Callvirt, adderRef); + if (adderRef.ReturnType.FullName != "System.Void") + yield return Instruction.Create(OpCodes.Pop); } public static TypeReference GetParameterType(ParameterDefinition param) @@ -683,4 +776,4 @@ namespace Xamarin.Forms.Build.Tasks return vardefref.VariableDefinition; } } -} +}
\ No newline at end of file diff --git a/Xamarin.Forms.Build.Tasks/SetResourcesVisitor.cs b/Xamarin.Forms.Build.Tasks/SetResourcesVisitor.cs index 25efa439..95a93393 100644 --- a/Xamarin.Forms.Build.Tasks/SetResourcesVisitor.cs +++ b/Xamarin.Forms.Build.Tasks/SetResourcesVisitor.cs @@ -57,7 +57,7 @@ namespace Xamarin.Forms.Build.Tasks return; if (propertyName.LocalName != "MergedWith") return; - SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node); + Context.IL.Append(SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node)); } public void Visit(MarkupNode node, INode parentNode) @@ -118,10 +118,10 @@ namespace Xamarin.Forms.Build.Tasks 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) +// 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]; @@ -143,7 +143,7 @@ namespace Xamarin.Forms.Build.Tasks (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); + Context.IL.Append(SetPropertiesVisitor.SetPropertyValue(Context.Variables[(IElementNode)parentNode], propertyName, node, Context, node)); } public void Visit(RootNode node, INode parentNode) diff --git a/Xamarin.Forms.Core/ConstraintExpression.cs b/Xamarin.Forms.Core/ConstraintExpression.cs index b2ca4b8f..0e4f5e97 100644 --- a/Xamarin.Forms.Core/ConstraintExpression.cs +++ b/Xamarin.Forms.Core/ConstraintExpression.cs @@ -6,7 +6,7 @@ using Xamarin.Forms.Xaml; namespace Xamarin.Forms { - public class ConstraintExpression : IMarkupExtension + public class ConstraintExpression : IMarkupExtension<Constraint> { public ConstraintExpression() { @@ -23,7 +23,12 @@ namespace Xamarin.Forms public ConstraintType Type { get; set; } - public object ProvideValue(IServiceProvider serviceProvider) + object IMarkupExtension.ProvideValue(IServiceProvider serviceProvider) + { + return (this as IMarkupExtension<Constraint>).ProvideValue(serviceProvider); + } + + public Constraint ProvideValue(IServiceProvider serviceProvider) { MethodInfo minfo; switch (Type) diff --git a/Xamarin.Forms.Xaml.UnitTests/GenericCollections.xaml.cs b/Xamarin.Forms.Xaml.UnitTests/GenericCollections.xaml.cs index 95c057b0..c2891e06 100644 --- a/Xamarin.Forms.Xaml.UnitTests/GenericCollections.xaml.cs +++ b/Xamarin.Forms.Xaml.UnitTests/GenericCollections.xaml.cs @@ -14,6 +14,11 @@ namespace Xamarin.Forms.Xaml.UnitTests typeof(GenericCollection), typeof(AttachedBP), null); + + public static GenericCollection GetAttachedBP(BindableObject bindable) + { + throw new NotImplementedException(); + } } public class GenericCollection : ObservableCollection<object> diff --git a/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml b/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml index 87252208..a40489cf 100644 --- a/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml +++ b/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml @@ -1,14 +1,14 @@ -<?xml version="1.0" encoding="UTF-8"?> +<?xml version="1.0" encoding="UTF-8"?> <ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="Xamarin.Forms.Xaml.UnitTests.SetterOnNonBP" xmlns:local="clr-namespace:Xamarin.Forms.Xaml.UnitTests;assembly=Xamarin.Forms.Xaml.UnitTests"> - <local:FakeVisualElement> - <local:FakeVisualElement.Style> - <Style TargetType="local:FakeVisualElement"> + <local:FakeView> + <local:FakeView.Style> + <Style TargetType="local:FakeView"> <Setter Property="NonBindable" Value="Should Fail"/> </Style> - </local:FakeVisualElement.Style> - </local:FakeVisualElement> + </local:FakeView.Style> + </local:FakeView> </ContentPage>
\ No newline at end of file diff --git a/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml.cs b/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml.cs index f6d8ffea..f39e5dd3 100644 --- a/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml.cs +++ b/Xamarin.Forms.Xaml.UnitTests/Validation/SetterOnNonBP.xaml.cs @@ -3,7 +3,7 @@ using Xamarin.Forms; namespace Xamarin.Forms.Xaml.UnitTests { - public class FakeVisualElement : VisualElement + public class FakeView : View { public string NonBindable { get; set; } } |