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-rw-r--r--src/CompilerServices/CompilerServices.cs892
1 files changed, 514 insertions, 378 deletions
diff --git a/src/CompilerServices/CompilerServices.cs b/src/CompilerServices/CompilerServices.cs
index 384e6765..e0d6c1e0 100644
--- a/src/CompilerServices/CompilerServices.cs
+++ b/src/CompilerServices/CompilerServices.cs
@@ -6,41 +6,101 @@ using System.Linq;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Xml;
+using Crow.IML;
namespace Crow
{
public static class CompilerServices
{
- static MethodInfo miAddBinding = typeof(GraphicObject).GetMethod ("BindMember");
- static FieldInfo miSetCurIface = typeof(GraphicObject).GetField ("currentInterface",
- BindingFlags.NonPublic | BindingFlags.Instance);
- static MethodInfo miFindByName = typeof (GraphicObject).GetMethod ("FindByName");
+ internal static Type TObject = typeof(object);
+ internal static MethodInfo stringEquals = typeof (string).GetMethod("Equals", new Type [3] { typeof (string), typeof (string), typeof (StringComparison) });
+ internal static MethodInfo miObjToString = typeof(object).GetMethod("ToString");
+ internal static MethodInfo miGetType = typeof(object).GetMethod("GetType");
+ internal static MethodInfo miParseEnum = typeof(Enum).GetMethod("Parse", BindingFlags.Static | BindingFlags.Public,
+ Type.DefaultBinder, new Type [] {typeof (Type), typeof (string), typeof (bool)}, null);
+ internal static MethodInfo miGetTypeFromHandle = typeof(Type).GetMethod("GetTypeFromHandle");
+ internal static MethodInfo miGetEvent = typeof(Type).GetMethod("GetEvent", new Type[] {typeof(string)});
- #region ValueChange Reflexion member info
- static MethodInfo stringEquals = typeof (string).GetMethod
- ("Equals", new Type [3] { typeof (string), typeof (string), typeof (StringComparison) });
- static EventInfo eiValueChange = typeof (IValueChange).GetEvent ("ValueChanged");
- static MethodInfo miInvokeValueChange = eiValueChange.EventHandlerType.GetMethod ("Invoke");
- static Type [] argsValueChange = { typeof (object), typeof (object), miInvokeValueChange.GetParameters () [1].ParameterType };
- static FieldInfo fiNewValue = typeof (ValueChangeEventArgs).GetField ("NewValue");
- static FieldInfo fiMbName = typeof (ValueChangeEventArgs).GetField ("MemberName");
- static MethodInfo miValueChangeAdd = eiValueChange.GetAddMethod ();
+ internal static MethodInfo miMIInvoke = typeof(MethodInfo).GetMethod ("Invoke", new Type[] {
+ typeof(object),
+ typeof(object[])
+ });
+
+ internal static MethodInfo miCreateBoundDel = typeof(Delegate).GetMethod ("CreateDelegate", new Type[] { typeof(Type), typeof(object), typeof(MethodInfo) });//create bound delegate
+ internal static MethodInfo miGetColCount = typeof(System.Collections.ICollection).GetProperty("Count").GetGetMethod();
+ internal static MethodInfo miGetDelegateListItem = typeof(List<Delegate>).GetMethod("get_Item", new Type[] { typeof(Int32) });
+
+ internal static MethodInfo miCompileDynEventHandler = typeof(CompilerServices).GetMethod ("compileDynEventHandler", BindingFlags.Static | BindingFlags.Public);
+ internal static MethodInfo miRemEvtHdlByName = typeof(CompilerServices).GetMethod("RemoveEventHandlerByName", BindingFlags.Static | BindingFlags.Public);
+ internal static MethodInfo miRemEvtHdlByTarget = typeof(CompilerServices).GetMethod("RemoveEventHandlerByTarget", BindingFlags.Static | BindingFlags.Public);
+ internal static MethodInfo miGetMethInfoWithRefx = typeof(CompilerServices).GetMethod ("getMethodInfoWithReflexion", BindingFlags.Static | BindingFlags.Public);
+ internal static MethodInfo miGetMembIinfoWithRefx = typeof(CompilerServices).GetMethod("getMemberInfoWithReflexion", BindingFlags.Static | BindingFlags.Public);
+ internal static MethodInfo miSetValWithRefx = typeof(CompilerServices).GetMethod("setValueWithReflexion", BindingFlags.Static | BindingFlags.Public);
+ internal static MethodInfo miGetValWithRefx = typeof(CompilerServices).GetMethod("getValueWithReflexion", BindingFlags.Static | BindingFlags.Public);
+ internal static MethodInfo miCreateDel = typeof(CompilerServices).GetMethod ("createDel", BindingFlags.Static | BindingFlags.NonPublic);
+ internal static MethodInfo miGetImplOp = typeof(CompilerServices).GetMethod ("getImplicitOp", BindingFlags.Static | BindingFlags.Public);
+
+ internal static FieldInfo fiCachedDel = typeof(Instantiator).GetField("cachedDelegates", BindingFlags.Instance | BindingFlags.NonPublic);
+ internal static FieldInfo fiTemplateBinding = typeof(Instantiator).GetField("templateBinding", BindingFlags.Instance | BindingFlags.NonPublic);
+ internal static MethodInfo miDSChangeEmitHelper = typeof(Instantiator).GetMethod("dataSourceChangedEmitHelper", BindingFlags.Instance | BindingFlags.NonPublic);
+ internal static MethodInfo miDSReverseBinding = typeof(Instantiator).GetMethod("dataSourceReverseBinding", BindingFlags.Static | BindingFlags.NonPublic);
+
+ internal static FieldInfo miSetCurIface = typeof(GraphicObject).GetField ("currentInterface", BindingFlags.NonPublic | BindingFlags.Instance);
+ internal static MethodInfo miFindByName = typeof (GraphicObject).GetMethod ("FindByName");
+ internal static MethodInfo miGetGObjItem = typeof(List<GraphicObject>).GetMethod("get_Item", new Type[] { typeof(Int32) });
+ internal static MethodInfo miLoadDefaultVals = typeof (GraphicObject).GetMethod ("loadDefaultValues");
+ internal static PropertyInfo piStyle = typeof (GraphicObject).GetProperty ("Style");
+ internal static MethodInfo miGetLogicalParent = typeof(GraphicObject).GetProperty("LogicalParent").GetGetMethod();
+ internal static MethodInfo miGetDataSource = typeof(GraphicObject).GetProperty("DataSource").GetGetMethod ();
+ internal static EventInfo eiLogicalParentChanged = typeof(GraphicObject).GetEvent("LogicalParentChanged");
+
+ internal static MethodInfo miIFaceLoad = typeof(Interface).GetMethod ("Load", BindingFlags.Instance | BindingFlags.Public);
+ internal static MethodInfo miGetITemp = typeof(Interface).GetMethod ("GetItemTemplate");
+
+ internal static MethodInfo miAddITemp = typeof(Dictionary<string, ItemTemplate>).GetMethod ("set_Item", new Type[] { typeof(string), typeof(ItemTemplate) });
+ internal static MethodInfo miGetITempFromDic = typeof(Dictionary<string, ItemTemplate>).GetMethod ("get_Item", new Type[] { typeof(string) });
+ internal static FieldInfo fldItemTemplates = typeof(TemplatedGroup).GetField("ItemTemplates");
+ internal static MethodInfo miCreateExpDel = typeof(ItemTemplate).GetMethod ("CreateExpandDelegate");
+
+ #region tree handling methods
+ internal static FieldInfo fiChild = typeof(PrivateContainer).GetField ("child", BindingFlags.Instance | BindingFlags.NonPublic);
+ internal static MethodInfo miSetChild = typeof (Container).GetMethod ("SetChild");
+ internal static MethodInfo miAddChild = typeof (Group).GetMethod ("AddChild");
+ internal static FieldInfo fiChildren = typeof(Group).GetField ("children", BindingFlags.Instance | BindingFlags.NonPublic);
+ internal static MethodInfo miLoadTmp = typeof (TemplatedControl).GetMethod ("loadTemplate", BindingFlags.Instance | BindingFlags.NonPublic);
+ internal static PropertyInfo piContent = typeof(TemplatedContainer).GetProperty ("Content");
+ internal static MethodInfo miAddItem = typeof (TemplatedGroup).GetMethod ("AddItem", BindingFlags.Instance | BindingFlags.Public);
+ internal static MethodInfo miGetItems = typeof(TemplatedGroup).GetProperty ("Items").GetGetMethod ();
#endregion
+ #region ValueChange & DSChange Reflexion member info
+ internal static EventInfo eiValueChange = typeof (IValueChange).GetEvent ("ValueChanged");
+ internal static MethodInfo miInvokeValueChange = eiValueChange.EventHandlerType.GetMethod ("Invoke");
+ internal static Type [] argsBoundValueChange = { typeof (object), typeof (object), miInvokeValueChange.GetParameters () [1].ParameterType };
+ internal static Type [] argsValueChange = { typeof (object), miInvokeValueChange.GetParameters () [1].ParameterType };
+ internal static FieldInfo fiVCNewValue = typeof (ValueChangeEventArgs).GetField ("NewValue");
+ internal static FieldInfo fiVCMbName = typeof (ValueChangeEventArgs).GetField ("MemberName");
+ internal static MethodInfo miValueChangeAdd = eiValueChange.GetAddMethod ();
+
+ internal static EventInfo eiDSChange = typeof (GraphicObject).GetEvent ("DataSourceChanged");
+ internal static MethodInfo miInvokeDSChange = eiDSChange.EventHandlerType.GetMethod ("Invoke");
+ internal static Type [] argsBoundDSChange = {typeof (object), typeof (object), miInvokeDSChange.GetParameters () [1].ParameterType };
+ internal static FieldInfo fiDSCNewDS = typeof (DataSourceChangeEventArgs).GetField ("NewDataSource");
+ internal static FieldInfo fiDSCOldDS = typeof (DataSourceChangeEventArgs).GetField ("OldDataSource");
+ internal static Type ehTypeDSChange = eiDSChange.EventHandlerType;
+ #endregion
+ /// <summary>
+ /// Loc0 is the current graphic object and arg2 of loader is the current interface
+ /// </summary>
+ /// <param name="il">Il.</param>
public static void emitSetCurInterface(ILGenerator il){
il.Emit (OpCodes.Ldloc_0);
il.Emit (OpCodes.Ldarg_1);
il.Emit (OpCodes.Stfld, miSetCurIface);
}
- public static void emitBindingCreation(ILGenerator il, string memberName, string expression){
- il.Emit (OpCodes.Ldloc_0);
- il.Emit (OpCodes.Ldstr, memberName);
- il.Emit (OpCodes.Ldstr, expression);
- il.Emit (OpCodes.Callvirt, miAddBinding);
- }
public static void EmitSetValue(ILGenerator il, PropertyInfo pi, object val){
il.Emit (OpCodes.Ldloc_0);
@@ -119,25 +179,17 @@ namespace Crow
if (pi.PropertyType == typeof(string))
il.Emit (OpCodes.Ldstr, Convert.ToString (val));
else if (pi.PropertyType.IsEnum) {
- MethodInfo miParse = typeof(Enum).GetMethod
- ("Parse", BindingFlags.Static | BindingFlags.Public,
- Type.DefaultBinder, new Type [] {typeof (Type), typeof (string), typeof (bool)}, null);
-
- if (miParse == null)
- throw new Exception ("Enum Parse method not found");
-
//load type of enum
il.Emit(OpCodes.Ldtoken, pi.PropertyType);
- il.Emit(OpCodes.Call, typeof(Type).GetMethod("GetTypeFromHandle", new
- Type[1]{typeof(RuntimeTypeHandle)}));
+ il.Emit(OpCodes.Call, CompilerServices.miGetTypeFromHandle);
//load enum value name
il.Emit (OpCodes.Ldstr, Convert.ToString (val));//TODO:is this convert required?
//load false
il.Emit (OpCodes.Ldc_I4_0);
- il.Emit (OpCodes.Callvirt, miParse);
+ il.Emit (OpCodes.Callvirt, CompilerServices.miParseEnum);
- if (miParse.ReturnType != pi.PropertyType)
- il.Emit (OpCodes.Unbox_Any, pi.PropertyType);
+ if (CompilerServices.miParseEnum.ReturnType != pi.PropertyType)
+ il.Emit (OpCodes.Unbox_Any, pi.PropertyType);
} else {
MethodInfo miParse = pi.PropertyType.GetMethod
("Parse", BindingFlags.Static | BindingFlags.Public,
@@ -152,280 +204,397 @@ namespace Crow
il.Emit (OpCodes.Unbox_Any, pi.PropertyType);
}
}
- il.Emit (OpCodes.Callvirt, pi.GetSetMethod ());
+ il.Emit (OpCodes.Callvirt, pi.GetSetMethod ());
}
- public static void ResolveBindings (List<Binding> Bindings)
- {
- if (Bindings == null)
- return;
- if (Bindings.Count == 0)
- return;
- //#if DEBUG_BINDING
- // Debug.WriteLine ("Resolve Bindings => " + this.ToString ());
- //#endif
- //grouped bindings by Instance of Source
- Dictionary<object, List<Binding>> resolved = new Dictionary<object, List<Binding>> ();
-
- foreach (Binding b in Bindings) {
- if (b.Resolved)
- continue;
- if (b.Source.Member.MemberType == MemberTypes.Event) {
- if (b.Expression.StartsWith ("{")) {
- CompilerServices.CompileEventSource (b);
- continue;
- }
- if (!b.TryFindTarget ())
- continue;
- //register handler for event
- if (b.Target.Method == null) {
- //Debug.WriteLine ("\tError: Handler Method not found: " + b.ToString ());
- continue;
- }
- try {
- MethodInfo addHandler = b.Source.Event.GetAddMethod ();
- Delegate del = Delegate.CreateDelegate (b.Source.Event.EventHandlerType, b.Target.Instance, b.Target.Method);
- addHandler.Invoke (b.Source.Instance, new object [] { del });
-
-#if DEBUG_BINDING
- Debug.WriteLine ("\tHandler binded => " + b.ToString());
-#endif
- b.Resolved = true;
- } catch (Exception ex) {
- //Debug.WriteLine ("\tERROR: " + ex.ToString ());
- }
- continue;
- }
-
- if (!b.TryFindTarget ())
- continue;
-
- //group Bindings by target instanceq
- List<Binding> bindings = null;
- if (!resolved.TryGetValue (b.Target.Instance, out bindings)) {
- bindings = new List<Binding> ();
- resolved [b.Target.Instance] = bindings;
- }
- bindings.Add (b);
- b.Resolved = true;
- }
-
- Type target_Type = Bindings [0].Source.Instance.GetType ();
-
- //group;only one dynMethods by target (valuechanged event source)
- //changed value name tested in switch
- //IEnumerable<Binding[]> groupedByTarget = resolved.GroupBy (g => g.Target.Instance, g => g, (k, g) => g.ToArray ());
- foreach (List<Binding> grouped in resolved.Values) {
- int i = 0;
- Type source_Type = grouped [0].Target.Instance.GetType ();
-
- DynamicMethod dm = null;
- ILGenerator il = null;
-
- System.Reflection.Emit.Label [] jumpTable = null;
- System.Reflection.Emit.Label endMethod = new System.Reflection.Emit.Label ();
-
- #region Retrieve EventHandler parameter type
- //EventInfo ei = targetType.GetEvent ("ValueChanged");
- //no dynamic update if ValueChanged interface is not implemented
- if (source_Type.GetInterfaces ().Contains (typeof (IValueChange))) {
- dm = new DynamicMethod (grouped [0].CreateNewDynMethodId (),
- MethodAttributes.Family | MethodAttributes.FamANDAssem | MethodAttributes.NewSlot,
- CallingConventions.Standard,
- typeof (void),
- argsValueChange,
- target_Type, true);
-
- il = dm.GetILGenerator (256);
+ #region conversions
- endMethod = il.DefineLabel ();
- jumpTable = new System.Reflection.Emit.Label [grouped.Count];
- for (i = 0; i < grouped.Count; i++)
- jumpTable [i] = il.DefineLabel ();
- il.DeclareLocal (typeof (string));
- il.DeclareLocal (typeof (object));
+ internal static MethodInfo GetConvertMethod (Type targetType)
+ {
+ string name;
- il.Emit (OpCodes.Nop);
- il.Emit (OpCodes.Ldarg_0);
- //il.Emit(OpCodes.Isinst, sourceType);
- //push new value onto stack
- il.Emit (OpCodes.Ldarg_2);
- il.Emit (OpCodes.Ldfld, fiNewValue);
- il.Emit (OpCodes.Stloc_1);
- //push name
- il.Emit (OpCodes.Ldarg_2);
- il.Emit (OpCodes.Ldfld, fiMbName);
- il.Emit (OpCodes.Stloc_0);
- il.Emit (OpCodes.Ldloc_0);
- il.Emit (OpCodes.Brfalse, endMethod);
- }
- #endregion
+ if (targetType == typeof (bool))
+ name = "ToBoolean";
+ else if (targetType == typeof (byte))
+ name = "ToByte";
+ else if (targetType == typeof (short))
+ name = "ToInt16";
+ else if (targetType == typeof (int))
+ name = "ToInt32";
+ else if (targetType == typeof (long))
+ name = "ToInt64";
+ else if (targetType == typeof (double))
+ name = "ToDouble";
+ else if (targetType == typeof (float))
+ name = "ToSingle";
+ else if (targetType == typeof (string))
+ return typeof (object).GetMethod ("ToString", Type.EmptyTypes);
+ else //try to find implicit convertion
+ throw new NotImplementedException (string.Format ("Conversion to {0} is not implemented.", targetType.Name));
- i = 0;
- foreach (Binding b in grouped) {
- #region initialize target with actual value
- object targetValue = null;
- if (b.Target.Member != null) {
- if (b.Target.Member.MemberType == MemberTypes.Property)
- targetValue = b.Target.Property.GetGetMethod ().Invoke (b.Target.Instance, null);
- else if (b.Target.Member.MemberType == MemberTypes.Field)
- targetValue = b.Target.Field.GetValue (b.Target.Instance);
- else if (b.Target.Member.MemberType == MemberTypes.Method) {
- MethodInfo mthSrc = b.Target.Method;
- if (mthSrc.IsDefined (typeof (ExtensionAttribute), false))
- targetValue = mthSrc.Invoke (null, new object [] { b.Target.Instance });
- else
- targetValue = mthSrc.Invoke (b.Target.Instance, null);
- } else
- throw new Exception ("unandled source member type for binding");
- } else if (string.IsNullOrEmpty (b.Expression))
- targetValue = grouped [0].Target.Instance;//empty binding exp=> bound to target object by default
- //TODO: handle other dest type conversions
- if (b.Source.Property.PropertyType == typeof (string)) {
- if (targetValue == null) {
- //set default value
+ return typeof (Convert).GetMethod (name, BindingFlags.Static | BindingFlags.Public, null, new Type [] { typeof (object) }, null);
+ }
+ #endregion
- } else
- targetValue = targetValue.ToString ();
- }
- try {
- if (targetValue != null)
- b.Source.Property.GetSetMethod ().Invoke
- (b.Source.Instance, new object [] { b.Source.Property.PropertyType.Cast (targetValue) });
- else
- b.Source.Property.GetSetMethod ().Invoke
- (b.Source.Instance, new object [] { targetValue });
- } catch (Exception ex) {
- Debug.WriteLine (ex.ToString ());
- }
- #endregion
+ /// <summary>
+ /// retrieve event handler in class or ancestors
+ /// </summary>
+ public static FieldInfo GetEventHandlerField (Type type, string eventName)
+ {
+ FieldInfo fi;
+ Type ty = type;
+ do {
+ fi = ty.GetField (eventName,
+ BindingFlags.NonPublic |
+ BindingFlags.Instance |
+ BindingFlags.GetField);
+ ty = ty.BaseType;
+ if (ty == null)
+ break;
+ } while (fi == null);
+ return fi;
+ }
- //if no dyn update, skip jump table
- if (il == null)
- continue;
+ /// <summary>
+ /// Gets extension methods defined in assembley for extendedType
+ /// </summary>
+ /// <returns>Extension methods enumerable</returns>
+ /// <param name="assembly">Assembly</param>
+ /// <param name="extendedType">Extended type to search for</param>
+ public static IEnumerable<MethodInfo> GetExtensionMethods (Assembly assembly,
+ Type extendedType)
+ {
+ IEnumerable<MethodInfo> query = null;
+ Type curType = extendedType;
- il.Emit (OpCodes.Ldloc_0);
- if (b.Target.Member != null)
- il.Emit (OpCodes.Ldstr, b.Target.Member.Name);
- else
- il.Emit (OpCodes.Ldstr, b.Expression.Split ('/').LastOrDefault ().Split('.').LastOrDefault());
- il.Emit (OpCodes.Ldc_I4_4);//StringComparison.Ordinal
- il.Emit (OpCodes.Callvirt, stringEquals);
- il.Emit (OpCodes.Brtrue, jumpTable [i]);
- i++;
- }
+ do {
+ query = from type in assembly.GetTypes ()
+ where type.IsSealed && !type.IsGenericType && !type.IsNested
+ from method in type.GetMethods (BindingFlags.Static
+ | BindingFlags.Public | BindingFlags.NonPublic)
+ where method.IsDefined (typeof (ExtensionAttribute), false)
+ where method.GetParameters () [0].ParameterType == curType
+ select method;
- if (il == null)
- continue;
+ if (query.Count () > 0)
+ break;
- il.Emit (OpCodes.Br, endMethod);
+ curType = curType.BaseType;
+ } while (curType != null);
- i = 0;
- foreach (Binding b in grouped) {
+ return query;
+ }
- il.MarkLabel (jumpTable [i]);
+ public static MethodInfo SearchExtMethod(Type t, string methodName){
+ MethodInfo mi = null;
+ mi = GetExtensionMethods (Assembly.GetEntryAssembly(), t)
+ .Where (em => em.Name == methodName).FirstOrDefault ();
+ if (mi != null)
+ return mi;
+ return GetExtensionMethods (Assembly.GetExecutingAssembly(), t)
+ .Where (em => em.Name == methodName).FirstOrDefault ();
+ }
- //load 2 times to check first for null
- il.Emit (OpCodes.Ldloc_1);
- il.Emit (OpCodes.Ldloc_1);
+ public static MemberInfo getMemberInfoWithReflexion(object instance, string member){
+ return instance.GetType ().GetMember (member).FirstOrDefault();
+ }
+ public static MethodInfo getMethodInfoWithReflexion(object instance, string method){
+ return instance.GetType ().GetMethod (method, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public);
+ }
+ public static Type getEventHandlerType(object instance, string eventName){
+ return instance.GetType ().GetEvent (eventName).EventHandlerType;
+ }
+ public static void setValueWithReflexion(object dest, object value, string destMember){
+ Type destType = null;
+ Type origType = null;
+ object convertedVal = null;
- System.Reflection.Emit.Label labSetValue = il.DefineLabel ();
- il.Emit (OpCodes.Brtrue, labSetValue);
- //if null
- il.Emit (OpCodes.Unbox_Any, b.Source.Property.PropertyType);
- il.Emit (OpCodes.Callvirt, b.Source.Property.GetSetMethod ());
- il.Emit (OpCodes.Br, endMethod);
+ MemberInfo miDest = getMemberInfoWithReflexion (dest, destMember);
- il.MarkLabel (labSetValue);
- //new value not null
+ if (miDest == null) {
+ Debug.WriteLine ("Reverse template binding error: " + destMember + " not found in " + dest);
+ return;
+ }
- //by default, source value type is deducted from target member type to allow
- //memberless binding, if targetMember exists, it will be used to determine target
- //value type for conversion
- Type sourceValueType = b.Source.Property.PropertyType;
- if (b.Target.Member != null) {
- if (b.Target.Member.MemberType == MemberTypes.Property)
- sourceValueType = b.Target.Property.PropertyType;
- else if (b.Target.Member.MemberType == MemberTypes.Field)
- sourceValueType = b.Target.Field.FieldType;
- else
- throw new Exception ("unhandle target member type in binding");
- }
+ if (miDest.MemberType == MemberTypes.Property)
+ destType =(miDest as PropertyInfo).PropertyType;
+ else if (miDest.MemberType == MemberTypes.Field)
+ destType =(miDest as FieldInfo).FieldType;
+ if (value != null) {
+ origType = value.GetType ();
+ if (destType.IsAssignableFrom (origType))
+ convertedVal = Convert.ChangeType (value, destType);
+ else if (origType.IsPrimitive & destType.IsPrimitive)
+ convertedVal = GetConvertMethod (destType).Invoke (null, new Object[] { value });
+ else
+ convertedVal = getImplicitOp (origType, destType).Invoke (value, null);
+ }
+ if (miDest.MemberType == MemberTypes.Property)
+ (miDest as PropertyInfo).SetValue (dest, convertedVal);
+ else if (miDest.MemberType == MemberTypes.Field)
+ (miDest as FieldInfo).SetValue (dest, convertedVal);
+ }
+ public static object getValueWithReflexion(object instance, MemberInfo mi){
+ object tmp = null;
+ Type dstType = null;
+ if (mi == null)
+ return null;
+ if (mi.MemberType == MemberTypes.Property) {
+ PropertyInfo pi = mi as PropertyInfo;
+ tmp = pi.GetValue (instance);
+ dstType = pi.PropertyType;
+ }
+ if (mi.MemberType == MemberTypes.Field) {
+ FieldInfo fi = mi as FieldInfo;
+ tmp = fi.GetValue (instance);
+ dstType = fi.FieldType;
+ }
+ if (tmp != null)
+ return tmp;
+ if (dstType == typeof(string) || dstType == CompilerServices.TObject)//TODO:object should be allowed to return null and not ""
+ return "";
+ if (dstType.IsValueType)
+ return Activator.CreateInstance (dstType);
- if (b.Source.Property.PropertyType == typeof (string)) {
- MemberReference tostring = new MemberReference (b.Source.Instance);
- if (!tostring.TryFindMember ("ToString"))
- throw new Exception ("ToString method not found");
- il.Emit (OpCodes.Callvirt, tostring.Method);
- } else if (!sourceValueType.IsValueType)
- il.Emit (OpCodes.Castclass, sourceValueType);
- else if (b.Source.Property.PropertyType != sourceValueType && b.Source.Property.PropertyType != typeof(object)) {
- il.Emit (OpCodes.Callvirt, CompilerServices.GetConvertMethod (b.Source.Property.PropertyType));
- } else
- il.Emit (OpCodes.Unbox_Any, b.Source.Property.PropertyType);
+ return null;
+ }
+ public static void emitGetInstance (ILGenerator il, NodeAddress orig, NodeAddress dest){
+ int ptr = 0;
+ while (orig [ptr] == dest [ptr]) {
+ ptr++;
+ if (ptr == orig.Count || ptr == dest.Count)
+ break;
+ }
+ for (int i = 0; i < orig.Count - ptr; i++)
+ il.Emit (OpCodes.Callvirt, CompilerServices.miGetLogicalParent);
+ while (ptr < dest.Count) {
+ emitGetChild (il, dest [ptr-1].CrowType, dest [ptr].Index);
+ ptr++;
+ }
+ }
+ public static void emitGetInstance (ILGenerator il, NodeAddress dest){
+ if (dest == null)
+ return;
+ for (int i = 0; i < dest.Count - 1; i++)
+ emitGetChild (il, dest [i].CrowType, dest [i + 1].Index);
+ }
+ public static void emitGetChild(ILGenerator il, Type parentType, int index){
+ if (typeof (Group).IsAssignableFrom (parentType)) {
+ il.Emit (OpCodes.Ldfld, fiChildren);
+ il.Emit(OpCodes.Ldc_I4, index);
+ il.Emit (OpCodes.Callvirt, miGetGObjItem);
+ return;
+ }
+ if (typeof(Container).IsAssignableFrom (parentType) || index < 0) {
+ il.Emit (OpCodes.Ldfld, fiChild);
+ return;
+ }
+ if (typeof(TemplatedContainer).IsAssignableFrom (parentType)) {
+ il.Emit (OpCodes.Callvirt, piContent.GetGetMethod());
+ return;
+ }
+ if (typeof(TemplatedGroup).IsAssignableFrom (parentType)) {
+ il.Emit (OpCodes.Callvirt, miGetItems);
+ il.Emit(OpCodes.Ldc_I4, index);
+ il.Emit (OpCodes.Callvirt, miGetGObjItem);
+ return;
+ }
+ }
+ /// <summary>
+ /// Emit conversion from orig type to dest type
+ /// </summary>
+ public static void emitConvert(ILGenerator il, Type origType, Type destType){
+ if (destType == CompilerServices.TObject)
+ return;
+ if (destType == typeof(string)) {
+ System.Reflection.Emit.Label emitNullStr = il.DefineLabel ();
+ System.Reflection.Emit.Label endConvert = il.DefineLabel ();
+ il.Emit (OpCodes.Dup);
+ il.Emit (OpCodes.Brfalse, emitNullStr);
+ il.Emit (OpCodes.Callvirt, CompilerServices.miObjToString);
+ il.Emit (OpCodes.Br, endConvert);
+ il.MarkLabel (emitNullStr);
+ il.Emit (OpCodes.Pop);//remove null string from stack
+ il.Emit (OpCodes.Ldstr, "");//replace with empty string
+ il.MarkLabel (endConvert);
+ }else if (origType.IsValueType) {
+ if (destType != origType) {
+ il.Emit (OpCodes.Callvirt, CompilerServices.GetConvertMethod (destType));
+ }else
+ il.Emit (OpCodes.Unbox_Any, destType);//TODO:double check this
+ } else {
+ if (origType.IsAssignableFrom(destType))
+ il.Emit (OpCodes.Castclass, destType);
+ else {
+ MethodInfo miIO = getImplicitOp (origType, destType);
+ if (miIO != null)
+ il.Emit (OpCodes.Callvirt, miIO);
+ }
+ }
+ }
+ /// <summary>
+ /// check type of current object on the stack and convert to dest type,
+ /// use loc_0 so store it as object!!!
+ /// </summary>
+ public static void emitConvert(ILGenerator il, Type dstType){
+ System.Reflection.Emit.Label endConvert = il.DefineLabel ();
+ System.Reflection.Emit.Label convert = il.DefineLabel ();
- il.Emit (OpCodes.Callvirt, b.Source.Property.GetSetMethod ());
+ il.Emit (OpCodes.Dup);
+ il.Emit (OpCodes.Isinst, dstType);
+ il.Emit (OpCodes.Brfalse, convert);
- //il.BeginCatchBlock (typeof (Exception));
- //il.Emit (OpCodes.Pop);
- //il.EndExceptionBlock ();
+ if (dstType.IsValueType)
+ il.Emit (OpCodes.Unbox_Any, dstType);
+ else
+ il.Emit (OpCodes.Isinst, dstType);
+ il.Emit (OpCodes.Br, endConvert);
- il.Emit (OpCodes.Br, endMethod);
- i++;
+ il.MarkLabel (convert);
- }
- il.MarkLabel (endMethod);
+ if (dstType == typeof(string)) {
+ System.Reflection.Emit.Label emitNullStr = il.DefineLabel ();
+ il.Emit (OpCodes.Dup);
+ il.Emit (OpCodes.Brfalse, emitNullStr);
+ il.Emit (OpCodes.Callvirt, CompilerServices.miObjToString);
+ il.Emit (OpCodes.Br, endConvert);
+ il.MarkLabel (emitNullStr);
+ il.Emit (OpCodes.Pop);//remove null string from stack
+ il.Emit (OpCodes.Ldstr, "");//replace with empty string
+ } else if (dstType.IsPrimitive) {
+ //il.Emit (OpCodes.Unbox_Any, dstType);
+ il.Emit (OpCodes.Callvirt, CompilerServices.GetConvertMethod (dstType));
+ } else if (dstType.IsValueType) {
+ il.Emit (OpCodes.Unbox_Any, dstType);
+ } else{
+ il.Emit (OpCodes.Stloc_0); //save orig value in loc0
+ //first check if not null
+ il.Emit (OpCodes.Ldloc_0);
+ il.Emit (OpCodes.Dup);
+ il.Emit (OpCodes.Brfalse, endConvert);
+ il.Emit (OpCodes.Callvirt, miGetType);
+ il.Emit (OpCodes.Ldtoken, dstType);//push destination property type for testing
+ il.Emit (OpCodes.Call, CompilerServices.miGetTypeFromHandle);
+ il.Emit (OpCodes.Call, miGetImplOp);
+ il.Emit (OpCodes.Dup);
+ convert = il.DefineLabel ();
+ il.Emit (OpCodes.Brtrue, convert);
il.Emit (OpCodes.Pop);
- il.Emit (OpCodes.Ret);
+ il.Emit (OpCodes.Ldloc_0);
+ il.Emit (OpCodes.Isinst, dstType);
+ il.Emit (OpCodes.Br, endConvert);
- try {
- Delegate del = dm.CreateDelegate (eiValueChange.EventHandlerType, Bindings [0].Source.Instance);
- miValueChangeAdd.Invoke (grouped [0].Target.Instance, new object [] { del });
+ il.MarkLabel (convert);
+ il.Emit (OpCodes.Ldnull);//null instance for invoke
+ il.Emit (OpCodes.Ldc_I4_1);
+ il.Emit(OpCodes.Newarr, CompilerServices.TObject);
+ il.Emit (OpCodes.Dup);//duplicate the array ref
+ il.Emit (OpCodes.Ldc_I4_0);//push the index 0
+ il.Emit (OpCodes.Ldloc_0);//push the orig value to convert
+ il.Emit (OpCodes.Stelem, CompilerServices.TObject);//set the array element at index 0
+ il.Emit (OpCodes.Callvirt, miMIInvoke);
+ }
- } catch (Exception ex) {
- Debug.WriteLine ("Binding Delegate error for {0}: \n{1}", Bindings [0].Source.Instance, ex.ToString ());
+ il.MarkLabel (endConvert);
+ }
+ /// <summary>
+ /// search for an implicit conversion method in origine or destination classes
+ /// </summary>
+ public static MethodInfo getImplicitOp(Type origType, Type dstType){
+ foreach(MethodInfo mi in origType.GetMethods(BindingFlags.Public|BindingFlags.Static)){
+ if (mi.Name == "op_Implicit") {
+ if (mi.ReturnType == dstType && mi.GetParameters ().FirstOrDefault ().ParameterType == origType)
+ return mi;
}
}
+ foreach(MethodInfo mi in dstType.GetMethods(BindingFlags.Public|BindingFlags.Static)){
+ if (mi.Name == "op_Implicit") {
+ if (mi.ReturnType == dstType && mi.GetParameters ().FirstOrDefault ().ParameterType == origType)
+ return mi;
+ }
+ }
+ return null;
}
-
/// <summary>
- /// Compile events expression in GOML attributes
+ /// Removes delegate from event handler by name
/// </summary>
- /// <param name="binding">Event binding details</param>
- public static void CompileEventSource (Binding binding)
- {
-#if DEBUG_BINDING
- Debug.WriteLine ("\tCompile Event Source => " + binding.ToString());
-#endif
+ public static void RemoveEventHandlerByName(object instance, string eventName, string delegateName){
+ Type t = instance.GetType ();
+ FieldInfo fiEvt = CompilerServices.GetEventHandlerField (t, eventName);
+ if (fiEvt == null) {
+ Debug.WriteLine ("RemoveHandlerByName: Event '" + eventName + "' not found in " + instance);
+ return;
+ }
+ EventInfo eiEvt = t.GetEvent (eventName);
+ MulticastDelegate multiDel = fiEvt.GetValue (instance) as MulticastDelegate;
+ if (multiDel != null) {
+ foreach (Delegate d in multiDel.GetInvocationList()) {
+ if (d.Method.Name == delegateName) {
+ eiEvt.RemoveEventHandler (instance, d);
+ #if DEBUG_BINDING
+ Debug.WriteLine ("\t{0} handler removed in {1} for: {2}", d.Method.Name,instance, eventName);
+ #endif
+ }
+ }
+ }
+ }
+ /// <summary>
+ /// Removes delegate from event handler by searching for the object they are bond to
+ /// </summary>
+ public static void RemoveEventHandlerByTarget(object instance, string eventName, object target){
+ Type t = instance.GetType ();
+ FieldInfo fiEvt = CompilerServices.GetEventHandlerField (t, eventName);
+ EventInfo eiEvt = t.GetEvent (eventName);
+ MulticastDelegate multiDel = fiEvt.GetValue (instance) as MulticastDelegate;
+ if (multiDel != null) {
+ foreach (Delegate d in multiDel.GetInvocationList()) {
+ if (d.Target == target) {
+ eiEvt.RemoveEventHandler (instance, d);
+ #if DEBUG_BINDING
+ Debug.WriteLine ("\t{0} handler removed in {1} for: {2}", d.Method.Name,instance, eventName);
+ #endif
+ }
+ }
+ }
+ }
+ internal static Delegate createDel(Type eventType, object instance, string method){
+ Type t = instance.GetType ();
+ MethodInfo mi = t.GetMethod (method, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
+ if (mi == null) {
+ Debug.WriteLine ("Handler Method '{0}' not found in '{1}'", method, t);
+ return null;
+ }
+ return Delegate.CreateDelegate (eventType, instance, mi);
+ }
+ public static Delegate compileDynEventHandler(EventInfo sourceEvent, string expression, NodeAddress currentNode = null){
+ #if DEBUG_BINDING
+ Debug.WriteLine ("\tCompile Event {0}: {1}", sourceEvent.Name, expression);
+ #endif
- Type target_type = binding.Source.Instance.GetType ();
+ Type lopType = null;
+
+ if (currentNode == null)
+ lopType = sourceEvent.DeclaringType;
+ else
+ lopType = currentNode.NodeType;
#region Retrieve EventHandler parameter type
- MethodInfo evtInvoke = binding.Source.Event.EventHandlerType.GetMethod ("Invoke");
+ MethodInfo evtInvoke = sourceEvent.EventHandlerType.GetMethod ("Invoke");
ParameterInfo [] evtParams = evtInvoke.GetParameters ();
Type handlerArgsType = evtParams [1].ParameterType;
#endregion
- Type [] args = { typeof (object), typeof (object), handlerArgsType };
- DynamicMethod dm = new DynamicMethod (binding.CreateNewDynMethodId (),
- typeof (void),
- args,
- target_type);
-
-
- #region IL generation
+ Type [] args = { CompilerServices.TObject, handlerArgsType };
+ DynamicMethod dm = new DynamicMethod ("dyn_eventHandler",
+ typeof(void),
+ args, true);
ILGenerator il = dm.GetILGenerator (256);
+ il.Emit (OpCodes.Nop);
- string src = binding.Expression.Trim ();
-
- if (!(src.StartsWith ("{") || src.EndsWith ("}")))
- throw new Exception (string.Format ("GOML:Malformed {0} Event handler: {1}", binding.Source.Member.Name, binding.Expression));
-
- src = src.Substring (1, src.Length - 2);
- string [] srcLines = src.Split (new char [] { ';' });
+ string [] srcLines = expression.Trim ().Split (new char [] { ';' });
foreach (string srcLine in srcLines) {
string statement = srcLine.Trim ();
@@ -433,51 +602,59 @@ namespace Crow
string [] operandes = statement.Split (new char [] { '=' });
if (operandes.Length < 2) //not an affectation
{
+ //maybe we could handle here handler function name
continue;
}
- string lop = operandes [0].Trim ();
+
string rop = operandes [operandes.Length - 1].Trim ();
#region LEFT OPERANDES
- GraphicObject lopObj = binding.Source.Instance as GraphicObject; //default left operand base object is
- //the first arg (object sender) of the event handler
+ string [] lopParts = operandes [0].Trim ().Split ('/');
+ MemberInfo lopMI = null;
il.Emit (OpCodes.Ldarg_0); //load sender ref onto the stack
- string [] lopParts = lop.Split (new char [] { '.' });
- if (lopParts.Length > 1) {//should search also for member of es.Source
- for (int j = 0; j < lopParts.Length - 1; j++) {
- il.Emit (OpCodes.Ldstr, lopParts [j]);
- il.Emit (OpCodes.Callvirt, miFindByName);
- }
+ if (lopParts.Length > 1) {
+ NodeAddress lopNA = getNodeAdressFromBindingExp (currentNode, lopParts);
+ CompilerServices.emitGetInstance (il, currentNode, lopNA);
+ lopType = lopNA.NodeType;
}
- int i = lopParts.Length - 1;
+ string [] bindTrg = lopParts.Last().Split ('.');
+
+ if (bindTrg.Length == 1)
+ lopMI = lopType.GetMember (bindTrg [0]).FirstOrDefault();
+ else if (bindTrg.Length == 2) {
+ //named target
+ //TODO:
+ il.Emit(OpCodes.Ldstr, bindTrg[0]);
+ il.Emit(OpCodes.Callvirt, miFindByName);
+ lopMI = lopType.GetMember (bindTrg [1]).FirstOrDefault();
+ } else
+ throw new Exception ("Syntax error in binding, expected 'go dot member'");
- MemberInfo [] lopMbis = lopObj.GetType ().GetMember (lopParts [i]);
- if (lopMbis.Length < 1)
- throw new Exception (string.Format ("CROW BINDING: Member not found '{0}'", lop));
+ if (lopMI == null)
+ throw new Exception (string.Format ("IML BINDING: Member not found"));
- OpCode lopSetOC;
- dynamic lopSetMbi;
+ OpCode lopSetOpCode;
+ dynamic lopSetMI;
Type lopT = null;
- switch (lopMbis [0].MemberType) {
+ switch (lopMI.MemberType) {
case MemberTypes.Property:
- PropertyInfo lopPi = target_type.GetProperty (lopParts [i]);
- MethodInfo dstMi = lopPi.GetSetMethod ();
+ lopSetOpCode = OpCodes.Callvirt;
+ PropertyInfo lopPi = lopMI as PropertyInfo;
lopT = lopPi.PropertyType;
- lopSetMbi = dstMi;
- lopSetOC = OpCodes.Callvirt;
+ lopSetMI = lopPi.GetSetMethod ();
break;
case MemberTypes.Field:
- FieldInfo dstFi = target_type.GetField (lopParts [i]);
+ lopSetOpCode = OpCodes.Stfld;
+ FieldInfo dstFi = lopMI as FieldInfo;
lopT = dstFi.FieldType;
- lopSetMbi = dstFi;
- lopSetOC = OpCodes.Stfld;
+ lopSetMI = dstFi;
break;
default:
- throw new Exception (string.Format ("GOML:member type not handle: {0}", lopParts [i]));
+ throw new Exception (string.Format ("GOML:member type not handle"));
}
#endregion
@@ -506,108 +683,67 @@ namespace Crow
#endregion
//emit left operand assignment
- il.Emit (lopSetOC, lopSetMbi);
+ il.Emit (lopSetOpCode, lopSetMI);
}
il.Emit (OpCodes.Ret);
- #endregion
-
- Delegate del = dm.CreateDelegate (binding.Source.Event.EventHandlerType, binding.Source.Instance);
- MethodInfo addHandler = binding.Source.Event.GetAddMethod ();
- addHandler.Invoke (binding.Source.Instance, new object [] { del });
-
- binding.Resolved = true;
+ return dm.CreateDelegate (sourceEvent.EventHandlerType);
}
-
- #region conversions
-
- internal static MethodInfo GetConvertMethod (Type targetType)
- {
- string name;
-
- if (targetType == typeof (bool))
- name = "ToBoolean";
- else if (targetType == typeof (byte))
- name = "ToByte";
- else if (targetType == typeof (short))
- name = "ToInt16";
- else if (targetType == typeof (int))
- name = "ToInt32";
- else if (targetType == typeof (long))
- name = "ToInt64";
- else if (targetType == typeof (double))
- name = "ToDouble";
- else if (targetType == typeof (float))
- name = "ToSingle";
- else if (targetType == typeof (string))
- return typeof (object).GetMethod ("ToString", Type.EmptyTypes);
- else //try to find implicit convertion
- throw new NotImplementedException (string.Format ("Conversion to {0} is not implemented.", targetType.Name));
-
- return typeof (Convert).GetMethod (name, BindingFlags.Static | BindingFlags.Public, null, new Type [] { typeof (object) }, null);
- }
- #endregion
-
- /// <summary>
- /// retrieve event handler in class or ancestors
- /// </summary>
- public static FieldInfo GetEventHandlerField (Type type, string eventName)
- {
- FieldInfo fi;
- Type ty = type;
- do {
- fi = ty.GetField (eventName,
- BindingFlags.NonPublic |
- BindingFlags.Instance |
- BindingFlags.GetField);
- ty = ty.BaseType;
- if (ty == null)
+ public static string[] splitOnSemiColumnOutsideAccolades (string expression){
+ List<String> exps = new List<string>();
+ int accCount = 0;
+ int expPtr = 0;
+ for (int c = 0; c < expression.Length; c++) {
+ switch (expression[c]){
+ case '{':
+ accCount++;
break;
- } while (fi == null);
- return fi;
+ case '}':
+ accCount--;
+ break;
+ case ';':
+ if (accCount > 0)
+ break;
+ exps.Add(expression.Substring(expPtr, c - expPtr - 1));
+ expPtr = c + 1;
+ break;
+ }
+ }
+ if (exps.Count == 0)
+ exps.Add(expression);
+ return exps.ToArray ();
}
-
/// <summary>
- /// Gets extension methods defined in assembley for extendedType
+ /// Gets the node adress from binding expression splitted with '/' starting at a given node
/// </summary>
- /// <returns>Extension methods enumerable</returns>
- /// <param name="assembly">Assembly</param>
- /// <param name="extendedType">Extended type to search for</param>
- public static IEnumerable<MethodInfo> GetExtensionMethods (Assembly assembly,
- Type extendedType)
- {
- IEnumerable<MethodInfo> query = null;
- Type curType = extendedType;
-
- do {
- query = from type in assembly.GetTypes ()
- where type.IsSealed && !type.IsGenericType && !type.IsNested
- from method in type.GetMethods (BindingFlags.Static
- | BindingFlags.Public | BindingFlags.NonPublic)
- where method.IsDefined (typeof (ExtensionAttribute), false)
- where method.GetParameters () [0].ParameterType == curType
- select method;
+ public static NodeAddress getNodeAdressFromBindingExp(NodeAddress sourceAddr, string[] bindingExp){
+ int ptr = sourceAddr.Count - 1;
- if (query.Count () > 0)
- break;
-
- curType = curType.BaseType;
- } while (curType != null);
-
- return query;
+ //if exp start with '/' => Graphic tree parsing start at source
+ if (string.IsNullOrEmpty (bindingExp [0])) {
+ //TODO:
+ } else if (bindingExp [0] == ".") { //search template root
+ ptr--;
+ while (ptr >= 0) {
+ if (typeof(TemplatedControl).IsAssignableFrom (sourceAddr [ptr].CrowType))
+ break;
+ ptr--;
+ }
+ } else if (bindingExp [0] == "..") { //search starting at current node
+ int levelUp = bindingExp.Length - 1;
+ if (levelUp > ptr + 1)
+ throw new Exception ("Binding error: try to bind outside IML source");
+ ptr -= levelUp;
+ }
+ //TODO:change Template special address identified with Nodecount = 0 to something not using array count to 0,
+ //here linq is working without limits checking in compile option
+ //but defining a 0 capacity array with limits cheking enabled, cause 'out of memory' error
+ return new NodeAddress (sourceAddr.Take(ptr+1).ToArray());//[ptr+1];
+ //Array.Copy (sourceAddr.ToArray (), targetNode, ptr + 1);
+ //return new NodeAddress (targetNode);
}
- public static MethodInfo SearchExtMethod(Type t, string methodName){
- MethodInfo mi = null;
- mi = GetExtensionMethods (Assembly.GetEntryAssembly(), t)
- .Where (em => em.Name == methodName).FirstOrDefault ();
- if (mi != null)
- return mi;
-
- return GetExtensionMethods (Assembly.GetExecutingAssembly(), t)
- .Where (em => em.Name == methodName).FirstOrDefault ();
- }
}
}
generated by cgit v1.3.1-4-g156e (git 2.54.0) at 2026-11-12 21:04:45 +0000