зеркало из https://github.com/DeGsoft/maui-linux.git
61 строка
3.2 KiB
C#
61 строка
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Xml;
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using Mono.Cecil;
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using Xamarin.Forms.Xaml;
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namespace Xamarin.Forms.Build.Tasks
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{
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static class BindablePropertyReferenceExtensions
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{
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public static TypeReference GetBindablePropertyType(this FieldReference bpRef, IXmlLineInfo iXmlLineInfo, ModuleDefinition module)
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{
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if (!bpRef.Name.EndsWith("Property", StringComparison.InvariantCulture))
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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);
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var bpName = bpRef.Name.Substring(0, bpRef.Name.Length - 8);
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var owner = bpRef.DeclaringType;
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TypeReference declaringTypeRef = null;
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var getter = owner.GetProperty(pd => pd.Name == bpName, out declaringTypeRef)?.GetMethod;
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if (getter == null || getter.IsStatic || !getter.IsPublic)
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getter = null;
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getter = getter ?? owner.GetMethods(md => md.Name == $"Get{bpName}" &&
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md.IsStatic &&
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md.IsPublic &&
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md.Parameters.Count == 1 &&
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md.Parameters[0].ParameterType.InheritsFromOrImplements(module.ImportReference(("Xamarin.Forms.Core", "Xamarin.Forms", "BindableObject"))), module).SingleOrDefault()?.Item1;
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if (getter == null)
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throw new XamlParseException($"Missing a public static Get{bpName} or a public instance property getter for the attached property \"{bpRef.DeclaringType}.{bpRef.Name}\"", iXmlLineInfo);
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return getter.ResolveGenericReturnType(declaringTypeRef, module);
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}
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public static TypeReference GetBindablePropertyTypeConverter(this FieldReference bpRef, ModuleDefinition module)
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{
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TypeReference propertyDeclaringType;
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var owner = bpRef.DeclaringType;
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var bpName = bpRef.Name.EndsWith("Property", StringComparison.Ordinal) ? bpRef.Name.Substring(0, bpRef.Name.Length - 8) : bpRef.Name;
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var property = owner.GetProperty(pd => pd.Name == bpName, out propertyDeclaringType);
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var propertyType = property?.ResolveGenericPropertyType(propertyDeclaringType, module);
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var staticGetter = owner.GetMethods(md => md.Name == $"Get{bpName}" &&
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md.IsStatic &&
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md.IsPublic &&
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md.Parameters.Count == 1 &&
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md.Parameters[0].ParameterType.InheritsFromOrImplements(module.ImportReference(("Xamarin.Forms.Core", "Xamarin.Forms", "BindableObject"))), module).SingleOrDefault()?.Item1;
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var attributes = new List<CustomAttribute>();
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if (property != null && property.HasCustomAttributes)
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attributes.AddRange(property.CustomAttributes);
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if (propertyType != null && propertyType.ResolveCached().HasCustomAttributes)
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attributes.AddRange(propertyType.ResolveCached().CustomAttributes);
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if (staticGetter != null && staticGetter.HasCustomAttributes)
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attributes.AddRange(staticGetter.CustomAttributes);
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if (staticGetter != null && staticGetter.ReturnType.ResolveCached().HasCustomAttributes)
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attributes.AddRange(staticGetter.ReturnType.ResolveCached().CustomAttributes);
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return attributes.FirstOrDefault(cad => TypeConverterAttribute.TypeConvertersType.Contains(cad.AttributeType.FullName))?.ConstructorArguments [0].Value as TypeReference;
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}
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}
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} |