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Diffstat (limited to 'third_party/protobuf/3.2.0/csharp/src/Google.Protobuf/Reflection/DescriptorPool.cs')
| -rw-r--r-- | third_party/protobuf/3.2.0/csharp/src/Google.Protobuf/Reflection/DescriptorPool.cs | 368 |
1 files changed, 0 insertions, 368 deletions
diff --git a/third_party/protobuf/3.2.0/csharp/src/Google.Protobuf/Reflection/DescriptorPool.cs b/third_party/protobuf/3.2.0/csharp/src/Google.Protobuf/Reflection/DescriptorPool.cs deleted file mode 100644 index 99ca4bf34f..0000000000 --- a/third_party/protobuf/3.2.0/csharp/src/Google.Protobuf/Reflection/DescriptorPool.cs +++ /dev/null @@ -1,368 +0,0 @@ -#region Copyright notice and license -// Protocol Buffers - Google's data interchange format -// Copyright 2008 Google Inc. All rights reserved. -// https://developers.google.com/protocol-buffers/ -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -#endregion - -using System; -using System.Collections.Generic; -using System.Text; -using System.Text.RegularExpressions; - -namespace Google.Protobuf.Reflection -{ - /// <summary> - /// Contains lookup tables containing all the descriptors defined in a particular file. - /// </summary> - internal sealed class DescriptorPool - { - private readonly IDictionary<string, IDescriptor> descriptorsByName = - new Dictionary<string, IDescriptor>(); - - private readonly IDictionary<DescriptorIntPair, FieldDescriptor> fieldsByNumber = - new Dictionary<DescriptorIntPair, FieldDescriptor>(); - - private readonly IDictionary<DescriptorIntPair, EnumValueDescriptor> enumValuesByNumber = - new Dictionary<DescriptorIntPair, EnumValueDescriptor>(); - - private readonly HashSet<FileDescriptor> dependencies; - - internal DescriptorPool(FileDescriptor[] dependencyFiles) - { - dependencies = new HashSet<FileDescriptor>(); - for (int i = 0; i < dependencyFiles.Length; i++) - { - dependencies.Add(dependencyFiles[i]); - ImportPublicDependencies(dependencyFiles[i]); - } - - foreach (FileDescriptor dependency in dependencyFiles) - { - AddPackage(dependency.Package, dependency); - } - } - - private void ImportPublicDependencies(FileDescriptor file) - { - foreach (FileDescriptor dependency in file.PublicDependencies) - { - if (dependencies.Add(dependency)) - { - ImportPublicDependencies(dependency); - } - } - } - - /// <summary> - /// Finds a symbol of the given name within the pool. - /// </summary> - /// <typeparam name="T">The type of symbol to look for</typeparam> - /// <param name="fullName">Fully-qualified name to look up</param> - /// <returns>The symbol with the given name and type, - /// or null if the symbol doesn't exist or has the wrong type</returns> - internal T FindSymbol<T>(string fullName) where T : class - { - IDescriptor result; - descriptorsByName.TryGetValue(fullName, out result); - T descriptor = result as T; - if (descriptor != null) - { - return descriptor; - } - - // dependencies contains direct dependencies and any *public* dependencies - // of those dependencies (transitively)... so we don't need to recurse here. - foreach (FileDescriptor dependency in dependencies) - { - dependency.DescriptorPool.descriptorsByName.TryGetValue(fullName, out result); - descriptor = result as T; - if (descriptor != null) - { - return descriptor; - } - } - - return null; - } - - /// <summary> - /// Adds a package to the symbol tables. If a package by the same name - /// already exists, that is fine, but if some other kind of symbol - /// exists under the same name, an exception is thrown. If the package - /// has multiple components, this also adds the parent package(s). - /// </summary> - internal void AddPackage(string fullName, FileDescriptor file) - { - int dotpos = fullName.LastIndexOf('.'); - String name; - if (dotpos != -1) - { - AddPackage(fullName.Substring(0, dotpos), file); - name = fullName.Substring(dotpos + 1); - } - else - { - name = fullName; - } - - IDescriptor old; - if (descriptorsByName.TryGetValue(fullName, out old)) - { - if (!(old is PackageDescriptor)) - { - throw new DescriptorValidationException(file, - "\"" + name + - "\" is already defined (as something other than a " + - "package) in file \"" + old.File.Name + "\"."); - } - } - descriptorsByName[fullName] = new PackageDescriptor(name, fullName, file); - } - - /// <summary> - /// Adds a symbol to the symbol table. - /// </summary> - /// <exception cref="DescriptorValidationException">The symbol already existed - /// in the symbol table.</exception> - internal void AddSymbol(IDescriptor descriptor) - { - ValidateSymbolName(descriptor); - String fullName = descriptor.FullName; - - IDescriptor old; - if (descriptorsByName.TryGetValue(fullName, out old)) - { - int dotPos = fullName.LastIndexOf('.'); - string message; - if (descriptor.File == old.File) - { - if (dotPos == -1) - { - message = "\"" + fullName + "\" is already defined."; - } - else - { - message = "\"" + fullName.Substring(dotPos + 1) + "\" is already defined in \"" + - fullName.Substring(0, dotPos) + "\"."; - } - } - else - { - message = "\"" + fullName + "\" is already defined in file \"" + old.File.Name + "\"."; - } - throw new DescriptorValidationException(descriptor, message); - } - descriptorsByName[fullName] = descriptor; - } - - private static readonly Regex ValidationRegex = new Regex("^[_A-Za-z][_A-Za-z0-9]*$", - FrameworkPortability.CompiledRegexWhereAvailable); - - /// <summary> - /// Verifies that the descriptor's name is valid (i.e. it contains - /// only letters, digits and underscores, and does not start with a digit). - /// </summary> - /// <param name="descriptor"></param> - private static void ValidateSymbolName(IDescriptor descriptor) - { - if (descriptor.Name == "") - { - throw new DescriptorValidationException(descriptor, "Missing name."); - } - if (!ValidationRegex.IsMatch(descriptor.Name)) - { - throw new DescriptorValidationException(descriptor, - "\"" + descriptor.Name + "\" is not a valid identifier."); - } - } - - /// <summary> - /// Returns the field with the given number in the given descriptor, - /// or null if it can't be found. - /// </summary> - internal FieldDescriptor FindFieldByNumber(MessageDescriptor messageDescriptor, int number) - { - FieldDescriptor ret; - fieldsByNumber.TryGetValue(new DescriptorIntPair(messageDescriptor, number), out ret); - return ret; - } - - internal EnumValueDescriptor FindEnumValueByNumber(EnumDescriptor enumDescriptor, int number) - { - EnumValueDescriptor ret; - enumValuesByNumber.TryGetValue(new DescriptorIntPair(enumDescriptor, number), out ret); - return ret; - } - - /// <summary> - /// Adds a field to the fieldsByNumber table. - /// </summary> - /// <exception cref="DescriptorValidationException">A field with the same - /// containing type and number already exists.</exception> - internal void AddFieldByNumber(FieldDescriptor field) - { - DescriptorIntPair key = new DescriptorIntPair(field.ContainingType, field.FieldNumber); - FieldDescriptor old; - if (fieldsByNumber.TryGetValue(key, out old)) - { - throw new DescriptorValidationException(field, "Field number " + field.FieldNumber + - "has already been used in \"" + - field.ContainingType.FullName + - "\" by field \"" + old.Name + "\"."); - } - fieldsByNumber[key] = field; - } - - /// <summary> - /// Adds an enum value to the enumValuesByNumber table. If an enum value - /// with the same type and number already exists, this method does nothing. - /// (This is allowed; the first value defined with the number takes precedence.) - /// </summary> - internal void AddEnumValueByNumber(EnumValueDescriptor enumValue) - { - DescriptorIntPair key = new DescriptorIntPair(enumValue.EnumDescriptor, enumValue.Number); - if (!enumValuesByNumber.ContainsKey(key)) - { - enumValuesByNumber[key] = enumValue; - } - } - - /// <summary> - /// Looks up a descriptor by name, relative to some other descriptor. - /// The name may be fully-qualified (with a leading '.'), partially-qualified, - /// or unqualified. C++-like name lookup semantics are used to search for the - /// matching descriptor. - /// </summary> - /// <remarks> - /// This isn't heavily optimized, but it's only used during cross linking anyway. - /// If it starts being used more widely, we should look at performance more carefully. - /// </remarks> - internal IDescriptor LookupSymbol(string name, IDescriptor relativeTo) - { - IDescriptor result; - if (name.StartsWith(".")) - { - // Fully-qualified name. - result = FindSymbol<IDescriptor>(name.Substring(1)); - } - else - { - // If "name" is a compound identifier, we want to search for the - // first component of it, then search within it for the rest. - int firstPartLength = name.IndexOf('.'); - string firstPart = firstPartLength == -1 ? name : name.Substring(0, firstPartLength); - - // We will search each parent scope of "relativeTo" looking for the - // symbol. - StringBuilder scopeToTry = new StringBuilder(relativeTo.FullName); - - while (true) - { - // Chop off the last component of the scope. - - int dotpos = scopeToTry.ToString().LastIndexOf("."); - if (dotpos == -1) - { - result = FindSymbol<IDescriptor>(name); - break; - } - else - { - scopeToTry.Length = dotpos + 1; - - // Append firstPart and try to find. - scopeToTry.Append(firstPart); - result = FindSymbol<IDescriptor>(scopeToTry.ToString()); - - if (result != null) - { - if (firstPartLength != -1) - { - // We only found the first part of the symbol. Now look for - // the whole thing. If this fails, we *don't* want to keep - // searching parent scopes. - scopeToTry.Length = dotpos + 1; - scopeToTry.Append(name); - result = FindSymbol<IDescriptor>(scopeToTry.ToString()); - } - break; - } - - // Not found. Remove the name so we can try again. - scopeToTry.Length = dotpos; - } - } - } - - if (result == null) - { - throw new DescriptorValidationException(relativeTo, "\"" + name + "\" is not defined."); - } - else - { - return result; - } - } - - /// <summary> - /// Struct used to hold the keys for the fieldByNumber table. - /// </summary> - private struct DescriptorIntPair : IEquatable<DescriptorIntPair> - { - private readonly int number; - private readonly IDescriptor descriptor; - - internal DescriptorIntPair(IDescriptor descriptor, int number) - { - this.number = number; - this.descriptor = descriptor; - } - - public bool Equals(DescriptorIntPair other) - { - return descriptor == other.descriptor - && number == other.number; - } - - public override bool Equals(object obj) - { - if (obj is DescriptorIntPair) - { - return Equals((DescriptorIntPair) obj); - } - return false; - } - - public override int GetHashCode() - { - return descriptor.GetHashCode()*((1 << 16) - 1) + number; - } - } - } -}
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