From 382f1be127ada9e777cae9c230254040b508f607 Mon Sep 17 00:00:00 2001
From: Matthias Andreas Benkard <matthias@benkard.de>
Date: Mon, 16 Jun 2008 11:51:55 +0200
Subject: Add protocol MLKFuncallable.

---
 MLKClosure.h        |  3 ++-
 MLKDynamicContext.h |  2 +-
 MLKFuncallable.h    | 24 ++++++++++++++++++++++++
 MLKReader.m         |  4 ++--
 MLKReadtable.h      |  6 +++---
 MLKReadtable.m      |  2 +-
 6 files changed, 33 insertions(+), 8 deletions(-)
 create mode 100644 MLKFuncallable.h

diff --git a/MLKClosure.h b/MLKClosure.h
index b05783f..e8a20d4 100644
--- a/MLKClosure.h
+++ b/MLKClosure.h
@@ -17,11 +17,12 @@
  */
 
 #import "MLKLispValue.h"
+#import "MLKFuncallable.h"
 
 @class MLKFunction, NSArray, NSData;
 
 
-@interface MLKClosure : MLKLispValue
+@interface MLKClosure : MLKLispValue <MLKFuncallable>
 {
   MLKFunction *_code;
   NSData *_closedOverVariableVector;
diff --git a/MLKDynamicContext.h b/MLKDynamicContext.h
index c6df58f..78c6e82 100644
--- a/MLKDynamicContext.h
+++ b/MLKDynamicContext.h
@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-@class MLKClosure, MLKEnvironment, MLKSymbol, NSLinkedList,
+@class MLKEnvironment, MLKSymbol, NSLinkedList,
        NSMutableDictionary, NSString;
 
 
diff --git a/MLKFuncallable.h b/MLKFuncallable.h
new file mode 100644
index 0000000..6f7fd40
--- /dev/null
+++ b/MLKFuncallable.h
@@ -0,0 +1,24 @@
+/* -*- mode: objc; coding: utf-8 -*- */
+/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
+ * Copyright (C) 2008  Matthias Andreas Benkard.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+@class NSArray;
+
+
+@protocol MLKFuncallable
+-(NSArray *) applyToArray:(NSArray *)arguments;
+@end
diff --git a/MLKReader.m b/MLKReader.m
index eb9a9fc..18d6571 100644
--- a/MLKReader.m
+++ b/MLKReader.m
@@ -24,7 +24,7 @@
 #import "MLKDynamicContext.h"
 #import "MLKEnvironment.h"
 #import "MLKPackage.h"
-#import "MLKClosure.h"
+#import "MLKFuncallable.h"
 #import "MLKStream.h"
 #import "MLKFloat.h"
 #import "MLKInteger.h"
@@ -68,7 +68,7 @@
   if ([readtable isMacroCharacter:ch])
     {
       NSArray *returnValues;
-      MLKClosure *macrofun = [readtable macroFunctionForCharacter:ch];
+      MLKFuncallable *macrofun = [readtable macroFunctionForCharacter:ch];
       NSArray *args = [NSArray arrayWithObjects:
                                  stream,
                                  [MLKCharacter characterWithUnichar:ch],
diff --git a/MLKReadtable.h b/MLKReadtable.h
index c8421cb..fcdc479 100644
--- a/MLKReadtable.h
+++ b/MLKReadtable.h
@@ -21,7 +21,7 @@
 #import <Foundation/NSObject.h>
 #import <Foundation/NSString.h>
 
-@class MLKClosure, NSMutableDictionary;
+@class MLKFuncallable, NSMutableDictionary;
 
 
 enum MLKReadtableCase
@@ -37,7 +37,7 @@ enum MLKReadtableCase
 {
   NSMutableDictionary *_syntaxTable;
   NSMutableDictionary *_readerMacros;
-  //MLKClosure *_caseConverter;
+  //MLKFuncallable *_caseConverter;
   enum MLKReadtableCase _case;
 }
 
@@ -73,6 +73,6 @@ enum MLKReadtableCase
 -(BOOL) isDigit:(unichar)ch;
 -(int) digitWeight:(unichar)ch;
 
--(MLKClosure *) macroFunctionForCharacter:(unichar)ch;
+-(MLKFuncallable *) macroFunctionForCharacter:(unichar)ch;
 -(unichar) charWithReadtableCase:(unichar)ch;
 @end
diff --git a/MLKReadtable.m b/MLKReadtable.m
index 702a00b..585d930 100644
--- a/MLKReadtable.m
+++ b/MLKReadtable.m
@@ -103,7 +103,7 @@
              isEqual:[[NSString stringWithFormat:@"%C", ch] lowercaseString]]);
 }
 
--(MLKClosure *) macroFunctionForCharacter:(unichar)ch;
+-(MLKFuncallable *) macroFunctionForCharacter:(unichar)ch;
 {
   return [_readerMacros objectForKey:[NSNumber numberWithLong:ch]];
 }
-- 
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