--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dstep/foundation/NSExpression.d	Mon Aug 03 15:23:15 2009 +0200
@@ -0,0 +1,180 @@
+/**
+ * Copyright: Copyright (c) 2009 Jacob Carlborg.
+ * Authors: Jacob Carlborg
+ * Version: Initial created: Aug 3, 2009 
+ * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0)
+ */
+module dstep.foundation.NSExpression;
+
+import dstep.foundation.NSArray;
+import dstep.foundation.NSMutableDictionary;
+import dstep.foundation.NSObject;
+import dstep.foundation.NSPredicate;
+import dstep.foundation.NSString;
+import dstep.objc.bridge.Bridge;
+import dstep.objc.objc : id;
+
+alias NSUInteger NSExpressionType;
+
+enum
+{
+	NSConstantValueExpressionType = 0,
+	NSEvaluatedObjectExpressionType,
+	NSVariableExpressionType,
+	NSKeyPathExpressionType,
+	NSFunctionExpressionType,
+	NSUnionSetExpressionType,
+	NSIntersectSetExpressionType,
+	NSMinusSetExpressionType,
+	NSSubqueryExpressionType = 13,
+	NSAggregateExpressionType
+}
+
+class NSExpression : NSObject, INSCoding, INSCopying
+{
+	mixin ObjcWrap;
+
+	static NSExpression expressionForConstantValue (Object obj)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForConstantValue:", Object)(objreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForEvaluatedObject ()
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForEvaluatedObject"return result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForVariable (NSString string)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForVariable:", NSString)(stringreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForKeyPath (NSString keyPath)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForKeyPath:", NSString)(keyPathreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForFunction (NSString name, NSArray parameters)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForFunction:arguments:", NSString, NSArray)(name, parametersreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForAggregate (NSArray subexpressions)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForAggregate:", NSArray)(subexpressionsreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForUnionSet (NSExpression left, NSExpression right)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForUnionSet:with:", NSExpression, NSExpression)(left, rightreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForIntersectSet (NSExpression left, NSExpression right)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForIntersectSet:with:", NSExpression, NSExpression)(left, rightreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForMinusSet (NSExpression left, NSExpression right)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForMinusSet:with:", NSExpression, NSExpression)(left, rightreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForSubquery (NSExpression expression, NSString variable, Object predicate)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForSubquery:usingIteratorVariable:predicate:", NSExpression, NSString, Object)(expression, variable, predicatereturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	static NSExpression expressionForFunction (NSExpression target, NSString name, NSArray parameters)
+	{
+		return invokeObjcSelfClass!(NSExpression, "expressionForFunction:selectorName:arguments:", NSExpression, NSString, NSArray)(target, name, parametersreturn result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	Object initWithExpressionType (uint type)
+	{
+		return invokeObjcSelf!(Object, "initWithExpressionType:", uint)(type);
+	}
+
+	this (uint type)
+	{
+		objcObject = Bridge.invokeObjcClassMethod!(id, "alloc")(objcClass);
+		id result = Bridge.invokeObjcMethod!(id, "initWithExpressionType:", uint)(objcObject, type);
+
+		if (result)
+			objcObject = ret;
+
+		dObject = this;
+	}
+
+	uint expressionType ()
+	{
+		return invokeObjcSelf!(uint, "expressionType");
+	}
+
+	Object constantValue ()
+	{
+		return invokeObjcSelf!(Object, "constantValue");
+	}
+
+	NSString keyPath ()
+	{
+		return invokeObjcSelf!(NSString, "keyPath");
+	}
+
+	NSString function_ ()
+	{
+		return invokeObjcSelf!(NSString, "function");
+	}
+
+	NSString variable ()
+	{
+		return invokeObjcSelf!(NSString, "variable");
+	}
+
+	NSExpression operand ()
+	{
+		id result = invokeObjcSelf!(id, "operand"return result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	NSArray arguments ()
+	{
+		return invokeObjcSelf!(NSArray, "arguments");
+	}
+
+	Object collection ()
+	{
+		return invokeObjcSelf!(Object, "collection");
+	}
+
+	NSPredicate predicate ()
+	{
+		return invokeObjcSelf!(NSPredicate, "predicate");
+	}
+
+	NSExpression leftExpression ()
+	{
+		id result = invokeObjcSelf!(id, "leftExpression"return result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	NSExpression rightExpression ()
+	{
+		id result = invokeObjcSelf!(id, "rightExpression"return result is this.objcObject ? this : (result !is null ? new NSExpression(result) : null);	}
+
+	Object expressionValueWithObject (Object object, NSMutableDictionary context)
+	{
+		return invokeObjcSelf!(Object, "expressionValueWithObject:context:", Object, NSMutableDictionary)(object, context);
+	}
+
+	void encodeWithCoder (NSCoder aCoder)
+	{
+		return invokeObjcSelf!(void, "encodeWithCoder:", NSCoder)(aCoder);
+	}
+
+	Object initWithCoder (NSCoder aDecoder)
+	{
+		return invokeObjcSelf!(Object, "initWithCoder:", NSCoder)(aDecoder);
+	}
+
+	this (NSCoder aDecoder)
+	{
+		objcObject = Bridge.invokeObjcClassMethod!(id, "alloc")(objcClass);
+		id result = Bridge.invokeObjcMethod!(id, "initWithCoder:", NSCoder)(objcObject, aDecoder);
+
+		if (result)
+			objcObject = ret;
+
+		dObject = this;
+	}
+
+	Object copyWithZone (NSZone* zone)
+	{
+		return invokeObjcSelf!(Object, "copyWithZone:", NSZone*)(zone);
+	}
+}
+