Add class MLKInterpreter.

1 files changed, 54 insertions, 0 deletions

diff --git a/MLKLexicalContext.h b/MLKLexicalContext.h
new file mode 100644
index 0000000..a93e40f
--- /dev/null
+++ b/MLKLexicalContext.h
@@ -0,0 +1,54 @@
+/* -*- 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/>.
+ */
+
+#import "MLKLispValue.h"
+
+@class MLKEnvironment, MLKSymbol, NSLinkedList, NSSet,
+       NSMutableDictionary, NSString, MLKCons;
+
+
+@interface MLKLexicalContext : MLKLispValue
+{
+  MLKEnvironment *_macroBindings;
+  MLKEnvironment *_goTags;
+  NSMutableDictionary *_variableLocations;
+  MLKCons *_declarations;
+  MLKLexicalContext *_parent;
+}
+
+-(MLKLexicalContext *) initWithParent:(MLKLexicalContext *)aContext
+                            variables:(NSSet *)vars
+                               goTags:(NSDictionary *)goTags
+                               macros:(NSDictionary *)macros
+                         declarations:(NSDictionary *)declarations;
+
++(MLKLexicalContext *) globalContext;
++(MLKLexicalContext *) nullContext;
+
+-(MLKEnvironment *) environment;
+
+-(id) macroForSymbol:(MLKSymbol *)symbol;
+-(id) goTagForSymbol:(MLKSymbol *)symbol;
+-(id) variableLocationForSymbol:(MLKSymbol *)symbol;
+
+-(void) addVariable:(MLKSymbol *)symbol;
+
+-(BOOL) variableIsLexical:(MLKSymbol *)symbol;
+
+-(void) dealloc;
+@end