mirror of https://github.com/mono/CppSharp.git
João Matos
12 years ago
15 changed files with 9315 additions and 29 deletions
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using System; |
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using System.Collections.Generic; |
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using System.Globalization; |
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using System.IO; |
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using System.Linq; |
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using System.Reflection; |
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using System.Text; |
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using CppSharp.AST; |
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namespace CppSharp.Passes |
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{ |
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class GetterSetterToPropertyAdvancedPass : TranslationUnitPass |
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{ |
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// collect all types of methods first to be able to match pairs and detect virtuals and overrides;
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// (a property needs to) be virtual or an override if either of its constituent methods are such)
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private readonly List<Method> setters = new List<Method>(); |
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private readonly List<Method> setMethods = new List<Method>(); |
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private readonly List<Method> nonSetters = new List<Method>(); |
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private readonly HashSet<Method> getters = new HashSet<Method>(); |
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private static readonly HashSet<string> verbs = new HashSet<string>(); |
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static GetterSetterToPropertyAdvancedPass() |
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{ |
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LoadVerbs(); |
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} |
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private static void LoadVerbs() |
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{ |
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using (var resourceStream = Assembly.GetExecutingAssembly() |
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.GetManifestResourceStream("CppSharp.Generator.Passes.verbs.txt")) |
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{ |
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using (StreamReader streamReader = new StreamReader(resourceStream)) |
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while (!streamReader.EndOfStream) |
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verbs.Add(streamReader.ReadLine()); |
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} |
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} |
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public GetterSetterToPropertyAdvancedPass() |
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{ |
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Options.VisitClassFields = false; |
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Options.VisitClassProperties = false; |
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Options.VisitNamespaceEnums = false; |
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Options.VisitNamespaceTemplates = false; |
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Options.VisitNamespaceTypedefs = false; |
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Options.VisitNamespaceEvents = false; |
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Options.VisitNamespaceVariables = false; |
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Options.VisitFunctionParameters = false; |
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Options.VisitTemplateArguments = false; |
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} |
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public override bool VisitTranslationUnit(TranslationUnit unit) |
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{ |
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bool result = base.VisitTranslationUnit(unit); |
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GenerateProperties(); |
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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 (!method.IsConstructor && !method.IsDestructor && !method.IsOperator && |
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!method.Ignore) |
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DistributeMethod(method); |
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return base.VisitMethodDecl(method); |
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} |
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public void GenerateProperties() |
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{ |
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GenerateProperties(setters, false); |
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GenerateProperties(setMethods, true); |
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foreach (Method getter in |
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from getter in getters |
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where getter.IsGenerated && |
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((Class) getter.Namespace).Methods.All(m => m == getter || m.Name != getter.Name) |
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select getter) |
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{ |
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// Make it a read-only property
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GenerateProperty(getter.Namespace, getter); |
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} |
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} |
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private void GenerateProperties(IEnumerable<Method> settersToUse, bool readOnly) |
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{ |
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foreach (var group in settersToUse.GroupBy(m => m.Namespace)) |
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{ |
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foreach (var setter in group) |
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{ |
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Class type = (Class) setter.Namespace; |
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StringBuilder nameBuilder = new StringBuilder(setter.Name.Substring(3)); |
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if (char.IsLower(setter.Name[0])) |
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nameBuilder[0] = char.ToLowerInvariant(nameBuilder[0]); |
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string afterSet = nameBuilder.ToString(); |
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foreach (var getter in nonSetters.Where(m => m.Namespace == type)) |
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{ |
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string name = GetPropertyName(getter.Name); |
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if (string.Compare(name, afterSet, StringComparison.OrdinalIgnoreCase) == 0 && |
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getter.ReturnType == setter.Parameters[0].QualifiedType && |
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!type.Methods.Any( |
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m => |
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m != getter && |
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string.Compare(name, m.Name, StringComparison.OrdinalIgnoreCase) == 0)) |
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{ |
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GenerateProperty(getter.Namespace, getter, readOnly ? null : setter); |
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goto next; |
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} |
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} |
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Property baseVirtualProperty = type.GetRootBaseProperty(new Property { Name = afterSet }); |
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if (!type.IsInterface && baseVirtualProperty != null) |
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{ |
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bool isReadOnly = baseVirtualProperty.SetMethod == null; |
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GenerateProperty(setter.Namespace, baseVirtualProperty.GetMethod, |
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readOnly || isReadOnly ? null : setter); |
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} |
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next: |
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; |
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} |
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} |
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foreach (Method nonSetter in nonSetters) |
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{ |
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Class type = (Class) nonSetter.Namespace; |
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string name = GetPropertyName(nonSetter.Name); |
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Property baseVirtualProperty = type.GetRootBaseProperty(new Property { Name = name }); |
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if (!type.IsInterface && baseVirtualProperty != null) |
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{ |
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bool isReadOnly = baseVirtualProperty.SetMethod == null; |
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if (readOnly == isReadOnly) |
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{ |
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GenerateProperty(nonSetter.Namespace, nonSetter, |
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readOnly ? null : baseVirtualProperty.SetMethod); |
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} |
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} |
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} |
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} |
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private static void GenerateProperty(DeclarationContext context, Method getter, Method setter = null) |
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{ |
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Class type = (Class) context; |
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if (type.Properties.All( |
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p => string.Compare(getter.Name, p.Name, StringComparison.OrdinalIgnoreCase) != 0 || |
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p.ExplicitInterfaceImpl != getter.ExplicitInterfaceImpl)) |
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{ |
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Property property = new Property(); |
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property.Name = GetPropertyName(getter.Name); |
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property.Namespace = type; |
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property.QualifiedType = getter.ReturnType; |
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if (getter.IsOverride || (setter != null && setter.IsOverride)) |
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{ |
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Property baseVirtualProperty = type.GetRootBaseProperty(property); |
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if (baseVirtualProperty.SetMethod == null) |
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setter = null; |
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foreach (Method method in type.Methods.Where(m => m.Name == property.Name && m.Parameters.Count > 0)) |
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method.Name = "get" + method.Name; |
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} |
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property.GetMethod = getter; |
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property.SetMethod = setter; |
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property.ExplicitInterfaceImpl = getter.ExplicitInterfaceImpl; |
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if (property.ExplicitInterfaceImpl == null && setter != null) |
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{ |
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property.ExplicitInterfaceImpl = setter.ExplicitInterfaceImpl; |
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} |
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if (getter.Comment != null) |
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{ |
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var comment = new RawComment(); |
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comment.Kind = getter.Comment.Kind; |
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comment.BriefText = getter.Comment.BriefText; |
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comment.Text = getter.Comment.Text; |
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comment.FullComment = new FullComment(); |
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comment.FullComment.Blocks.AddRange(getter.Comment.FullComment.Blocks); |
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if (setter != null && setter.Comment != null) |
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{ |
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comment.BriefText += Environment.NewLine + setter.Comment.BriefText; |
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comment.Text += Environment.NewLine + setter.Comment.Text; |
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comment.FullComment.Blocks.AddRange(setter.Comment.FullComment.Blocks); |
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} |
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property.Comment = comment; |
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} |
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type.Properties.Add(property); |
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getter.IsGenerated = false; |
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if (setter != null) |
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setter.IsGenerated = false; |
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} |
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} |
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private static string GetPropertyName(string name) |
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{ |
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if (GetFirstWord(name) == "get") |
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{ |
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if (char.IsLower(name[0])) |
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{ |
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if (name.Length == 4) |
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{ |
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return char.ToLowerInvariant( |
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name[3]).ToString(CultureInfo.InvariantCulture); |
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} |
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return char.ToLowerInvariant( |
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name[3]).ToString(CultureInfo.InvariantCulture) + |
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name.Substring(4); |
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} |
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return name.Substring(3); |
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} |
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return name; |
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} |
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private void DistributeMethod(Method method) |
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{ |
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if (GetFirstWord(method.Name) == "set" && method.Name.Length > 3 && |
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method.ReturnType.Type.IsPrimitiveType(PrimitiveType.Void)) |
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{ |
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if (method.Parameters.Count == 1) |
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setters.Add(method); |
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else |
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setMethods.Add(method); |
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} |
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else |
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{ |
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if (IsGetter(method)) |
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getters.Add(method); |
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if (method.Parameters.Count == 0) |
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nonSetters.Add(method); |
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} |
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} |
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private bool IsGetter(Method method) |
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{ |
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if (method.ReturnType.Type.IsPrimitiveType(PrimitiveType.Void) || |
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method.Parameters.Count > 0 || method.IsDestructor) |
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return false; |
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var result = GetFirstWord(method.Name); |
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return (result.Length < method.Name.Length && |
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(result == "get" || result == "is" || result == "has")) || |
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(result != "to" && result != "new" && !verbs.Contains(result)); |
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} |
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private static string GetFirstWord(string name) |
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{ |
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List<char> firstVerb = new List<char> |
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{ |
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char.ToLowerInvariant(name[0]) |
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}; |
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firstVerb.AddRange(name.Skip(1).TakeWhile( |
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c => char.IsLower(c) || !char.IsLetterOrDigit(c))); |
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return new string(firstVerb.ToArray()); |
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} |
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} |
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} |
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