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using System;
using System.Collections.Generic;
using Google.ProtocolBuffers.Descriptors;
namespace Google.ProtocolBuffers.ProtoGen {
internal abstract class SourceGeneratorBase<T> where T : IDescriptor {
private readonly T descriptor;
protected SourceGeneratorBase(T descriptor) {
this.descriptor = descriptor;
}
protected T Descriptor {
get { return descriptor; }
}
internal static string GetClassName(IDescriptor descriptor) {
return ToCSharpName(descriptor.FullName, descriptor.File);
}
// Groups are hacky: The name of the field is just the lower-cased name
// of the group type. In C#, though, we would like to retain the original
// capitalization of the type name.
internal static string GetFieldName(FieldDescriptor descriptor) {
if (descriptor.FieldType == FieldType.Group) {
return descriptor.MessageType.Name;
} else {
return descriptor.Name;
}
}
private static string ToCSharpName(string name, FileDescriptor file) {
string result = file.CSharpOptions.Namespace;
if (file.CSharpOptions.NestClasses) {
if (result != "") {
result += ".";
}
result += file.CSharpOptions.UmbrellaClassname;
}
if (result != "") {
result += '.';
}
string classname;
if (file.Package == "") {
classname = name;
} else {
// Strip the proto package from full_name since we've replaced it with
// the C# namespace.
classname = name.Substring(file.Package.Length + 1);
}
result += classname.Replace(".", ".Types.");
return "global::" + result;
}
protected string ClassAccessLevel {
get {
return descriptor.File.CSharpOptions.PublicClasses ? "public" : "internal";
}
}
protected void WriteChildren<TChild>(TextGenerator writer, string region, IEnumerable<TChild> children)
where TChild : IDescriptor {
// Copy the set of children; makes access easier
List<TChild> copy = new List<TChild>(children);
if (copy.Count == 0) {
return;
}
if (region != null) {
writer.WriteLine("#region {0}", region);
}
foreach (TChild child in children) {
SourceGenerators.CreateGenerator(child).Generate(writer);
}
if (region != null) {
writer.WriteLine("#endregion");
writer.WriteLine();
}
}
}
}
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