From b46c8d81cb7815d654e5cb77fa6f26edbd1d2944 Mon Sep 17 00:00:00 2001
From: Rich Hickey <richhickey@gmail.com>
Date: Mon, 3 Apr 2006 22:39:09 +0000
Subject: Added iteration support

---
 src/cli/runtime/RT.cs | 437 ++++++++++++++++++++++++++------------------------
 1 file changed, 229 insertions(+), 208 deletions(-)

(limited to 'src/cli/runtime/RT.cs')

diff --git a/src/cli/runtime/RT.cs b/src/cli/runtime/RT.cs
index 777c1299..544cba51 100644
--- a/src/cli/runtime/RT.cs
+++ b/src/cli/runtime/RT.cs
@@ -1,212 +1,233 @@
-/**
- *   Copyright (c) Rich Hickey. All rights reserved.
- *   The use and distribution terms for this software are covered by the
- *   Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
- *   which can be found in the file CPL.TXT at the root of this distribution.
- *   By using this software in any fashion, you are agreeing to be bound by
- * 	 the terms of this license.
- *   You must not remove this notice, or any other, from this software.
- **/
-
-/* rich Mar 25, 2006 4:28:27 PM */
-
+/**
+ *   Copyright (c) Rich Hickey. All rights reserved.
+ *   The use and distribution terms for this software are covered by the
+ *   Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
+ *   which can be found in the file CPL.TXT at the root of this distribution.
+ *   By using this software in any fashion, you are agreeing to be bound by
+ * 	 the terms of this license.
+ *   You must not remove this notice, or any other, from this software.
+ **/
+
+/* rich Mar 25, 2006 4:28:27 PM */
+
 using System;
-
+using System.Collections;
+
 namespace org.clojure.runtime
-{
-
+{
+
 public class RT
-{
-
-	static Object TRUE = true;
-    static public Object eq(Object arg1, Object arg2) {
-        return (arg1 == arg2)?TRUE:null;
-        }
-
-    static public Object eql(Object arg1, Object arg2) {
-        if(arg1 == arg2)
-        	return TRUE;
-        if(arg1 == null || arg2 == null)
-        	return null;
-        if(arg1 is Num
-        		&& arg1.GetType() == arg2.GetType()
-				&& arg1.Equals(arg2))
-        	return TRUE;
-        if(arg1 is Char
-        		&& arg2 is Char
-				&& arg1.Equals(arg2))
-        	return TRUE;
-        return null;
-        }
-
-    static public Object equal(Object arg1, Object arg2) {
-        if(arg1 == null)
-        	return arg2 == null ? TRUE : null;
-        else if(arg2 == null)
-            return null;
-    	return (eql(arg1,arg2) != null
-    			|| (arg1 is Cons
-    					&& arg2 is Cons
-						&& equal(((Cons)arg1).first,((Cons)arg2).first)!=null
-						&& equal(((Cons)arg1).rest,((Cons)arg2).rest)!=null))
-		?TRUE:null;
-    	}
-
-static public Cons cons(Object x, Cons y)
-	{
-	return new Cons(x, y);
-	}
-
-static public Cons list()
-	{
-	return null;
-	}
-
-static public Cons list(Object arg1)
-	{
-	return cons(arg1, null);
-	}
-
-static public Cons list(Object arg1, Object arg2)
-	{
-	return listStar(arg1, arg2, null);
-	}
-
-static public Cons list(Object arg1, Object arg2, Object arg3)
-	{
-	return listStar(arg1, arg2, arg3, null);
-	}
-
-static public Cons list(Object arg1, Object arg2, Object arg3, Object arg4)
-	{
-	return listStar(arg1, arg2, arg3, arg4, null);
-	}
-
-static public Cons list(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5)
-	{
-	return listStar(arg1, arg2, arg3, arg4, arg5, null);
-	}
-
-static public Cons listStar(Object arg1, Cons rest)
-	{
-	return cons(arg1, rest);
-	}
-
-static public Cons listStar(Object arg1, Object arg2, Cons rest)
-	{
-	return cons(arg1, cons(arg2, rest));
-	}
-
-static public Cons listStar(Object arg1, Object arg2, Object arg3, Cons rest)
-	{
-	return cons(arg1, cons(arg2, cons(arg3, rest)));
-	}
-
-static public Cons listStar(Object arg1, Object arg2, Object arg3, Object arg4, Cons rest)
-	{
-	return cons(arg1, cons(arg2, cons(arg3, cons(arg4, rest))));
-	}
-
-static public Cons listStar(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Cons rest)
-	{
-	return cons(arg1, cons(arg2, cons(arg3, cons(arg4, cons(arg5, rest)))));
-	}
-
-static public int length(Cons list)
-	{
-	int i = 0;
-	for(Cons c = list; c != null; c = c.rest)
-		{
-		i++;
-		}
-	return i;
-	}
-
-static public int boundedLength(Cons list, int limit)
-	{
-	int i = 0;
-	for(Cons c = list; c != null && i <= limit; c = c.rest)
-		{
-		i++;
-		}
-	return i;
-	}
-
-static public Object setValues(ThreadLocalData tld, Object arg1)
-	{
-	if(tld == null)
-		tld = ThreadLocalData.get();
-	tld.mvCount = 1;
-	tld.mvArray[0] = arg1;
-	return arg1;
-	}
-
-static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2)
-	{
-	if(tld == null)
-		tld = ThreadLocalData.get();
-	tld.mvCount = 2;
-	tld.mvArray[0] = arg1;
-	tld.mvArray[1] = arg2;
-	return arg1;
-	}
-
-static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3)
-	{
-	if(tld == null)
-		tld = ThreadLocalData.get();
-	tld.mvCount = 3;
-	tld.mvArray[0] = arg1;
-	tld.mvArray[1] = arg2;
-	tld.mvArray[2] = arg3;
-	return arg1;
-	}
-
-static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3, Object arg4)
-	{
-	if(tld == null)
-		tld = ThreadLocalData.get();
-	tld.mvCount = 4;
-	tld.mvArray[0] = arg1;
-	tld.mvArray[1] = arg2;
-	tld.mvArray[2] = arg3;
-	tld.mvArray[3] = arg4;
-	return arg1;
-	}
-
-static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3, Object arg4,
-                               Object arg5)
-	{
-	if(tld == null)
-		tld = ThreadLocalData.get();
-	tld.mvCount = 5;
-	tld.mvArray[0] = arg1;
-	tld.mvArray[1] = arg2;
-	tld.mvArray[2] = arg3;
-	tld.mvArray[3] = arg4;
-	tld.mvArray[4] = arg5;
-	return arg1;
-	}
-
-static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3, Object arg4,
-                               Object arg5, Cons args) /*throws Exception*/
-	{
-	if(tld == null)
-		tld = ThreadLocalData.get();
-	tld.mvCount = 5;
-	tld.mvArray[0] = arg1;
-	tld.mvArray[1] = arg2;
-	tld.mvArray[2] = arg3;
-	tld.mvArray[3] = arg4;
-	tld.mvArray[4] = arg5;
-	for(int i = 5; args != null && i < ThreadLocalData.MULTIPLE_VALUES_LIMIT; i++, args = args.rest)
-		{
-		tld.mvArray[i] = args.first;
-		}
-	if(args != null)
-		throw new ArgumentException("Too many arguments to values (> ThreadLocalData.MULTIPLE_VALUES_LIMIT)");
-	return arg1;
-	}
-
-}
+{
+
+	static Object TRUE = true;
+    static public Object eq(Object arg1, Object arg2) {
+        return (arg1 == arg2)?TRUE:null;
+        }
+
+    static public Object eql(Object arg1, Object arg2) {
+        if(arg1 == arg2)
+        	return TRUE;
+        if(arg1 == null || arg2 == null)
+        	return null;
+        if(arg1 is Num
+        		&& arg1.GetType() == arg2.GetType()
+				&& arg1.Equals(arg2))
+        	return TRUE;
+        if(arg1 is Char
+        		&& arg2 is Char
+				&& arg1.Equals(arg2))
+        	return TRUE;
+        return null;
+        }
+
+    static public Object equal(Object arg1, Object arg2) {
+        if(arg1 == null)
+        	return arg2 == null ? TRUE : null;
+        else if(arg2 == null)
+            return null;
+    	return (eql(arg1,arg2) != null
+    			|| (arg1 is Cons
+    					&& arg2 is Cons
+						&& equal(((Cons)arg1).first,((Cons)arg2).first)!=null
+						&& equal(((Cons)arg1).rest,((Cons)arg2).rest)!=null))
+		?TRUE:null;
+    	}
+
+    static public Iter iter(Object coll)
+        {
+        if (coll == null)
+            return null;
+        else if (coll is ISeq)
+            return ((ISeq)coll).iter();
+        else if (coll is IEnumerable)
+            {
+            IEnumerator e = ((IEnumerable)coll).GetEnumerator();
+            if (e.MoveNext())
+                return new EnumeratorIter(e);
+            return null;
+            }
+        else
+            {
+            throw new ArgumentException("Don't know how to create Iter from arg");
+            }
+
+        }
+                    
+static public Cons cons(Object x, Cons y)
+	{
+	return new Cons(x, y);
+	}
+
+static public Cons list()
+	{
+	return null;
+	}
+
+static public Cons list(Object arg1)
+	{
+	return cons(arg1, null);
+	}
+
+static public Cons list(Object arg1, Object arg2)
+	{
+	return listStar(arg1, arg2, null);
+	}
+
+static public Cons list(Object arg1, Object arg2, Object arg3)
+	{
+	return listStar(arg1, arg2, arg3, null);
+	}
+
+static public Cons list(Object arg1, Object arg2, Object arg3, Object arg4)
+	{
+	return listStar(arg1, arg2, arg3, arg4, null);
+	}
+
+static public Cons list(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5)
+	{
+	return listStar(arg1, arg2, arg3, arg4, arg5, null);
+	}
+
+static public Cons listStar(Object arg1, Cons rest)
+	{
+	return cons(arg1, rest);
+	}
+
+static public Cons listStar(Object arg1, Object arg2, Cons rest)
+	{
+	return cons(arg1, cons(arg2, rest));
+	}
+
+static public Cons listStar(Object arg1, Object arg2, Object arg3, Cons rest)
+	{
+	return cons(arg1, cons(arg2, cons(arg3, rest)));
+	}
+
+static public Cons listStar(Object arg1, Object arg2, Object arg3, Object arg4, Cons rest)
+	{
+	return cons(arg1, cons(arg2, cons(arg3, cons(arg4, rest))));
+	}
+
+static public Cons listStar(Object arg1, Object arg2, Object arg3, Object arg4, Object arg5, Cons rest)
+	{
+	return cons(arg1, cons(arg2, cons(arg3, cons(arg4, cons(arg5, rest)))));
+	}
+
+static public int length(Cons list)
+	{
+	int i = 0;
+	for(Cons c = list; c != null; c = c.rest)
+		{
+		i++;
+		}
+	return i;
+	}
+
+static public int boundedLength(Cons list, int limit)
+	{
+	int i = 0;
+	for(Cons c = list; c != null && i <= limit; c = c.rest)
+		{
+		i++;
+		}
+	return i;
+	}
+
+static public Object setValues(ThreadLocalData tld, Object arg1)
+	{
+	if(tld == null)
+		tld = ThreadLocalData.get();
+	tld.mvCount = 1;
+	tld.mvArray[0] = arg1;
+	return arg1;
+	}
+
+static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2)
+	{
+	if(tld == null)
+		tld = ThreadLocalData.get();
+	tld.mvCount = 2;
+	tld.mvArray[0] = arg1;
+	tld.mvArray[1] = arg2;
+	return arg1;
+	}
+
+static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3)
+	{
+	if(tld == null)
+		tld = ThreadLocalData.get();
+	tld.mvCount = 3;
+	tld.mvArray[0] = arg1;
+	tld.mvArray[1] = arg2;
+	tld.mvArray[2] = arg3;
+	return arg1;
+	}
+
+static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3, Object arg4)
+	{
+	if(tld == null)
+		tld = ThreadLocalData.get();
+	tld.mvCount = 4;
+	tld.mvArray[0] = arg1;
+	tld.mvArray[1] = arg2;
+	tld.mvArray[2] = arg3;
+	tld.mvArray[3] = arg4;
+	return arg1;
+	}
+
+static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3, Object arg4,
+                               Object arg5)
+	{
+	if(tld == null)
+		tld = ThreadLocalData.get();
+	tld.mvCount = 5;
+	tld.mvArray[0] = arg1;
+	tld.mvArray[1] = arg2;
+	tld.mvArray[2] = arg3;
+	tld.mvArray[3] = arg4;
+	tld.mvArray[4] = arg5;
+	return arg1;
+	}
+
+static public Object setValues(ThreadLocalData tld, Object arg1, Object arg2, Object arg3, Object arg4,
+                               Object arg5, Cons args) /*throws Exception*/
+	{
+	if(tld == null)
+		tld = ThreadLocalData.get();
+	tld.mvCount = 5;
+	tld.mvArray[0] = arg1;
+	tld.mvArray[1] = arg2;
+	tld.mvArray[2] = arg3;
+	tld.mvArray[3] = arg4;
+	tld.mvArray[4] = arg5;
+	for(int i = 5; args != null && i < ThreadLocalData.MULTIPLE_VALUES_LIMIT; i++, args = args.rest)
+		{
+		tld.mvArray[i] = args.first;
+		}
+	if(args != null)
+		throw new ArgumentException("Too many arguments to values (> ThreadLocalData.MULTIPLE_VALUES_LIMIT)");
+	return arg1;
+	}
+
+}
 }
\ No newline at end of file
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