Added RunPasses to PassBuilder and change existing code to use it.

src/Generator.Tests/Passes/TestPasses.cs

@@ -31,8 +31,7 @@ namespace Generator.Tests.Passes
             Assert.IsFalse(@enum2.IsFlags);
 
             passBuilder.AddPass(new CheckFlagEnumsPass());
-            foreach (var pass in passBuilder.Passes)
-                 pass.VisitLibrary(Library);
+            passBuilder.RunPasses(pass => pass.VisitLibrary(Library));
 
             Assert.IsTrue(@enum.IsFlags);
             Assert.IsFalse(@enum2.IsFlags);
@@ -46,8 +45,7 @@ namespace Generator.Tests.Passes
             Assert.IsNull(c.Method("Start"));
 
             passBuilder.AddPass( new FunctionToInstanceMethodPass());
-            foreach (var pass in passBuilder.Passes)
-                pass.VisitLibrary(Library);
+            passBuilder.RunPasses(pass => pass.VisitLibrary(Library));
 
             Assert.IsNotNull(c.Method("Start"));
         }
@@ -61,8 +59,7 @@ namespace Generator.Tests.Passes
             Assert.IsNull(c.Method("Start"));
 
             passBuilder.AddPass(new FunctionToStaticMethodPass());
-            foreach (var pass in passBuilder.Passes)
-                pass.VisitLibrary(Library);
+            passBuilder.RunPasses(pass => pass.VisitLibrary(Library));
 
             Assert.IsTrue(Library.Function("FooStart").ExplicityIgnored);
             Assert.IsNotNull(c.Method("Start"));
@@ -77,8 +74,7 @@ namespace Generator.Tests.Passes
             var field = c.Field("lowerCaseField");
 
             passBuilder.RenameDeclsUpperCase(RenameTargets.Any);
-            foreach (var pass in passBuilder.Passes)
-                pass.VisitLibrary(Library);
+            passBuilder.RunPasses(pass => pass.VisitLibrary(Library));
 
             Assert.That(method.Name, Is.EqualTo("LowerCaseMethod"));
             Assert.That(field.Name, Is.EqualTo("LowerCaseField"));
@@ -94,8 +90,7 @@ namespace Generator.Tests.Passes
 
             passBuilder.RemovePrefix("TEST_ENUM_ITEM_NAME_", RenameTargets.EnumItem);
             passBuilder.AddPass(new CleanInvalidDeclNamesPass());
-            foreach (var pass in passBuilder.Passes)
-                pass.VisitLibrary(Library);
+            passBuilder.RunPasses(pass => pass.VisitLibrary(Library));
 
             Assert.That(@enum.Items[0].Name, Is.EqualTo("_0"));
         }

src/Generator/Driver.cs

@@ -147,12 +147,7 @@ namespace CppSharp
 
         public void ProcessCode()
         {
-            foreach (var pass in TranslationUnitPasses.Passes)
-            {
-                pass.Driver = this;
-                pass.VisitLibrary(Library);
-            }
-
+            TranslationUnitPasses.RunPasses(pass => pass.VisitLibrary(Library));
             Generator.Process();
         }
 

src/Generator/Passes/PassBuilder.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 using CppSharp.Passes;
 
@@ -34,5 +35,14 @@ namespace CppSharp
         {
             return Passes.OfType<U>().Select(pass => pass as U).FirstOrDefault();
         }
+
+        /// <summary>
+        /// Adds a new pass to the builder.
+        /// </summary>
+        public void RunPasses(Action<T> action)
+        {
+            foreach (var pass in Passes)
+                action(pass);
+        }
     }
 }