[Bind] Allow multiple overrides files

Multiple overrides files allow us to split overrides by extension,
simplifying maintenance.

Source/Bind/ES/ES2Generator.cs

@@ -25,6 +25,8 @@ namespace Bind.ES
             Settings.DefaultDocPath = Path.Combine(
                 Settings.DefaultDocPath, "ES20");
 
+            Settings.OverridesFiles.Add("GL2/overrides.xml");
+
             Profile = "gles2";
             Version = "2.0";
 

Source/Bind/ES/ES3Generator.cs

@@ -25,6 +25,8 @@ namespace Bind.ES
             Settings.DefaultDocPath = Path.Combine(
                 Settings.DefaultDocPath, "ES30");
 
+            Settings.OverridesFiles.Add("GL2/overrides.xml");
+
             Profile = "gles2"; // The 3.0 spec reuses the gles2 apiname
             Version = "2.0|3.0";
 

Source/Bind/ES/ESGenerator.cs

@@ -25,6 +25,8 @@ namespace Bind.ES
             Settings.DefaultDocPath = Path.Combine(
                 Settings.DefaultDocPath, "ES20"); // no ES11 docbook sources available
 
+            Settings.OverridesFiles.Add("GL2/overrides.xml");
+
             // Khronos releases a combined 1.0+1.1 specification,
             // so we cannot distinguish between the two.
             // Todo: add support for common and light profiles.

Source/Bind/EnumProcessor.cs

@@ -39,12 +39,12 @@ namespace Bind
 {
     class EnumProcessor
     {
-        string Overrides { get; set; }
+        readonly IEnumerable<string> Overrides;
 
         IBind Generator { get; set; }
         Settings Settings { get { return Generator.Settings; } }
 
-        public EnumProcessor(IBind generator, string overrides)
+        public EnumProcessor(IBind generator, IEnumerable<string> overrides)
         {
             if (generator == null)
                 throw new ArgumentNullException("generator");
@@ -57,9 +57,14 @@ namespace Bind
 
         public EnumCollection Process(EnumCollection enums, string apiname)
         {
-            var nav = new XPathDocument(Overrides).CreateNavigator();
+            foreach (var file in Overrides)
+            {
+                Console.WriteLine("Processing enums in {0}.", file);
+
+                var nav = new XPathDocument(file).CreateNavigator();
                 enums = ProcessNames(enums, nav, apiname);
                 enums = ProcessConstants(enums, nav, apiname);
+            }
             return enums;
         }
 

Source/Bind/FuncProcessor.cs

@@ -54,12 +54,12 @@ namespace Bind
             RegexOptions.Compiled);
         static readonly Regex EndingsAddV = new Regex("^0", RegexOptions.Compiled);
 
-        string Overrides { get; set; }
+        readonly IEnumerable<string> Overrides;
 
         IBind Generator { get; set; }
         Settings Settings { get { return Generator.Settings; } }
 
-        public FuncProcessor(IBind generator, string overrides)
+        public FuncProcessor(IBind generator, IEnumerable<string> overrides)
         {
             if (generator == null)
                 throw new ArgumentNullException("generator");
@@ -73,8 +73,11 @@ namespace Bind
         public FunctionCollection Process(EnumProcessor enum_processor, DocProcessor doc_processor,
             DelegateCollection delegates, EnumCollection enums, string apiname, string apiversion)
         {
-            Console.WriteLine("Processing delegates.");
+            foreach (var file in Overrides)
-            var nav = new XPathDocument(Overrides).CreateNavigator();
+            {
+                Console.WriteLine("Processing delegates in {0}.", file);
+
+                var nav = new XPathDocument(file).CreateNavigator();
                 foreach (var version in apiversion.Split('|'))
                 {
                     // Translate each delegate:
@@ -112,6 +115,7 @@ namespace Bind
                         delegates.Add(overload);
                     }
                 }
+            }
 
             Console.WriteLine("Generating wrappers.");
             var wrappers = CreateWrappers(delegates, enums);

Source/Bind/GL2/GL2Generator.cs

@@ -56,6 +56,9 @@ namespace Bind.GL2
             Settings.DefaultDocPath = Path.Combine(
                 Settings.DefaultDocPath, "GL");
 
+            Settings.OverridesFiles.Add("GL2/overrides.xml");
+            Settings.OverridesFiles.Add("GL2/GL/");
+
             //Settings.DefaultCompatibility |=
             //    Settings.Legacy.UseDllImports | Settings.Legacy.UseWindowsCompatibleGL;
         }

Source/Bind/GL2/GL4Generator.cs

@@ -48,6 +48,9 @@ namespace Bind.GL2
             Settings.DefaultDocPath = Path.Combine(
                 Settings.DefaultDocPath, "GL");
 
+            Settings.OverridesFiles.Add("GL2/overrides.xml");
+            Settings.OverridesFiles.Add("GL2/GL/");
+
             Profile = "glcore";
 
             //Settings.DefaultCompatibility |=

Source/Bind/GL2/Generator.cs

@@ -76,7 +76,6 @@ namespace Bind.GL2
             enumSpecExt = String.Empty;
             glSpec = Path.Combine(dirName, "signatures.xml");
             glSpecExt = String.Empty;
-            Settings.OverridesFile = Path.Combine(dirName, "overrides.xml");
 
             Settings.ImportsClass = "Core";
             Settings.DelegatesClass = "Delegates";
@@ -91,6 +90,27 @@ namespace Bind.GL2
 
         #endregion
 
+        #region Private Members
+
+        IEnumerable<string> GetFiles(string path)
+        {
+            path = Path.Combine(Settings.InputPath, path);
+            if ((File.GetAttributes(path) & FileAttributes.Directory) != 0)
+            {
+                foreach (var file in Directory.GetFiles(
+                    path, "*.xml", SearchOption.AllDirectories))
+                {
+                    yield return file;
+                }
+            }
+            else
+            {
+                yield return path;
+            }
+        }
+
+        #endregion
+
         #region IBind Members
 
         public DelegateCollection Delegates { get; private set; }
@@ -101,15 +121,24 @@ namespace Bind.GL2
 
         public virtual void Process()
         {
-            string overrides = Path.Combine(Settings.InputPath, Settings.OverridesFile);
+            var overrides = Settings.OverridesFiles.SelectMany(GetFiles);
 
             GLTypes = SpecReader.ReadTypeMap(Path.Combine(Settings.InputPath, glTypemap));
             CSTypes = SpecReader.ReadCSTypeMap(Path.Combine(Settings.InputPath, csTypemap));
 
+            // Read enum signatures
             SpecReader.ReadEnums(Path.Combine(Settings.InputPath, enumSpec), Enums, Profile, Version);
-            SpecReader.ReadEnums(overrides, Enums, Profile, Version);
+            foreach (var file in overrides)
+            {
+                SpecReader.ReadEnums(file, Enums, Profile, Version);
+            }
+
+            // Read delegate signatures
             SpecReader.ReadDelegates(Path.Combine(Settings.InputPath, glSpec), Delegates, Profile, Version);
-            SpecReader.ReadDelegates(overrides, Delegates, Profile, Version);
+            foreach (var file in overrides)
+            {
+                SpecReader.ReadDelegates(file, Delegates, Profile, Version);
+            }
 
             var enum_processor = new EnumProcessor(this, overrides);
             var func_processor = new FuncProcessor(this, overrides);

Source/Bind/Settings.cs

@@ -5,6 +5,7 @@
 #endregion
 
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Runtime.Serialization;
 using System.Runtime.Serialization.Formatters.Binary;
@@ -14,9 +15,9 @@ namespace Bind
     [Serializable]
     class Settings
     {
-        // Disable BeforeFieldInit.
         public Settings()
         {
+            OverridesFiles = new List<string>();
         }
 
         public string DefaultInputPath = "../../../Source/Bind/Specifications";
@@ -25,7 +26,6 @@ namespace Bind
         public string DefaultDocPath = "../../../Source/Bind/Specifications/Docs";
         public string DefaultFallbackDocPath = "../../../Source/Bind/Specifications/Docs/GL";
         public string DefaultLicenseFile = "License.txt";
-        public string DefaultOverridesFile = "GL2/gloverrides.xml";
         public string DefaultLanguageTypeMapFile = "csharp.tm";
         public string DefaultKeywordEscapeCharacter = "@";
         public string DefaultImportsFile = "Core.cs";
@@ -34,7 +34,7 @@ namespace Bind
         public string DefaultWrappersFile = "GL.cs";
         public Legacy DefaultCompatibility = Legacy.NoDropMultipleTokens;
 
-        string inputPath, outputPath, outputNamespace, docPath, fallbackDocPath, licenseFile, overridesFile,
+        string inputPath, outputPath, outputNamespace, docPath, fallbackDocPath, licenseFile,
             languageTypeMapFile, keywordEscapeCharacter, importsFile, delegatesFile, enumsFile,
             wrappersFile;
         Nullable<Legacy> compatibility;
@@ -44,7 +44,7 @@ namespace Bind
         public string DocPath { get { return docPath ?? DefaultDocPath; } set { docPath = value; } }
         public string FallbackDocPath { get { return fallbackDocPath ?? DefaultFallbackDocPath; } set { fallbackDocPath = value; } }
         public string LicenseFile { get { return licenseFile ?? DefaultLicenseFile; } set { licenseFile = value; } }
-        public string OverridesFile { get { return overridesFile ?? DefaultOverridesFile; } set { overridesFile = value; } }
+        public List<string> OverridesFiles { get; private set; }
         public string LanguageTypeMapFile { get { return languageTypeMapFile ?? DefaultLanguageTypeMapFile; } set { languageTypeMapFile = value; } }
         public string KeywordEscapeCharacter { get { return keywordEscapeCharacter ?? DefaultKeywordEscapeCharacter; } set { keywordEscapeCharacter = value; } }
         public string ImportsFile { get { return importsFile ?? DefaultImportsFile; } set { importsFile = value; } }