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Allow performing definite assignment analysis without providing an IT…
…ypeResolveContext.
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NRefactory/ICSharpCode.NRefactory/CSharp/Analysis/MinimalResolveContext.cs
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| // Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt) | ||
| // This code is distributed under MIT X11 license (for details please see \doc\license.txt) | ||
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.Collections.ObjectModel; | ||
| using System.Linq; | ||
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| using ICSharpCode.NRefactory.TypeSystem; | ||
| using ICSharpCode.NRefactory.TypeSystem.Implementation; | ||
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| namespace ICSharpCode.NRefactory.CSharp.Analysis | ||
| { | ||
| /// <summary> | ||
| /// Resolve context represents the minimal mscorlib required for evaluating constants. | ||
| /// </summary> | ||
| sealed class MinimalResolveContext : IProjectContent, ISynchronizedTypeResolveContext | ||
| { | ||
| static readonly Lazy<MinimalResolveContext> instance = new Lazy<MinimalResolveContext>(() => new MinimalResolveContext()); | ||
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| public static MinimalResolveContext Instance { | ||
| get { return instance.Value; } | ||
| } | ||
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| readonly ReadOnlyCollection<string> namespaces = Array.AsReadOnly(new string[] { "System" }); | ||
| readonly IAttribute[] assemblyAttributes = new IAttribute[0]; | ||
| readonly ITypeDefinition systemObject, systemValueType; | ||
| readonly ReadOnlyCollection<ITypeDefinition> types; | ||
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| private MinimalResolveContext() | ||
| { | ||
| List<ITypeDefinition> types = new List<ITypeDefinition>(); | ||
| types.Add(systemObject = new DefaultTypeDefinition(this, "System", "Object")); | ||
| types.Add(systemValueType = new DefaultTypeDefinition(this, "System", "ValueType") { BaseTypes = { systemObject } }); | ||
| types.Add(CreateStruct("System", "Boolean")); | ||
| types.Add(CreateStruct("System", "SByte")); | ||
| types.Add(CreateStruct("System", "Byte")); | ||
| types.Add(CreateStruct("System", "Int16")); | ||
| types.Add(CreateStruct("System", "UInt16")); | ||
| types.Add(CreateStruct("System", "Int32")); | ||
| types.Add(CreateStruct("System", "UInt32")); | ||
| types.Add(CreateStruct("System", "Int64")); | ||
| types.Add(CreateStruct("System", "UInt64")); | ||
| types.Add(CreateStruct("System", "Single")); | ||
| types.Add(CreateStruct("System", "Double")); | ||
| types.Add(CreateStruct("System", "Decimal")); | ||
| types.Add(new DefaultTypeDefinition(this, "System", "String") { BaseTypes = { systemObject } }); | ||
| foreach (ITypeDefinition type in types) | ||
| type.Freeze(); | ||
| this.types = types.AsReadOnly(); | ||
| } | ||
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| ITypeDefinition CreateStruct(string nameSpace, string name) | ||
| { | ||
| return new DefaultTypeDefinition(this, nameSpace, name) { | ||
| ClassType = ClassType.Struct, | ||
| BaseTypes = { systemValueType } | ||
| }; | ||
| } | ||
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| public ITypeDefinition GetClass(string nameSpace, string name, int typeParameterCount, StringComparer nameComparer) | ||
| { | ||
| foreach (ITypeDefinition type in types) { | ||
| if (nameComparer.Equals(type.Name, name) && nameComparer.Equals(type.Namespace, nameSpace) && type.TypeParameterCount == typeParameterCount) | ||
| return type; | ||
| } | ||
| return null; | ||
| } | ||
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| public IEnumerable<ITypeDefinition> GetClasses() | ||
| { | ||
| return types; | ||
| } | ||
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| public IEnumerable<ITypeDefinition> GetClasses(string nameSpace, StringComparer nameComparer) | ||
| { | ||
| return types.Where(t => nameComparer.Equals(t.Namespace, nameSpace)); | ||
| } | ||
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| public IEnumerable<string> GetNamespaces() | ||
| { | ||
| return namespaces; | ||
| } | ||
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| public string GetNamespace(string nameSpace, StringComparer nameComparer) | ||
| { | ||
| foreach (string ns in namespaces) { | ||
| if (nameComparer.Equals(ns, nameSpace)) | ||
| return ns; | ||
| } | ||
| return null; | ||
| } | ||
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| public IList<IAttribute> AssemblyAttributes { | ||
| get { return assemblyAttributes; } | ||
| } | ||
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| ICSharpCode.NRefactory.Utils.CacheManager ITypeResolveContext.CacheManager { | ||
| get { | ||
| // We don't support caching | ||
| return null; | ||
| } | ||
| } | ||
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| ISynchronizedTypeResolveContext ITypeResolveContext.Synchronize() | ||
| { | ||
| // This class is immutable | ||
| return this; | ||
| } | ||
|
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| void IDisposable.Dispose() | ||
| { | ||
| // exit from Synchronize() block | ||
| } | ||
| } | ||
| } |
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