1 files changed, 118 insertions, 0 deletions
diff --git a/MLKCompiledClosure.m b/MLKCompiledClosure.m
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+++ b/MLKCompiledClosure.m
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+/* -*- mode: objc; coding: utf-8 -*- */
+/* Toilet Lisp, 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 "MLKCompiledClosure.h"
+
+#import "functions.h"
+#import "globals.h"
+#import "runtime-compatibility.h"
+#import "util.h"
+
+#import <Foundation/NSDictionary.h>
+#import <Foundation/NSSet.h>
+
+#import <stdlib.h>
+
+
+@implementation MLKCompiledClosure
+-(id) initWithCode:(void *)code
+              data:(id *)data
+            length:(int)dataLength
+{
+  int i;
+
+  _data = data;
+  _dataLength = dataLength;
+  _code = code;
+
+  for (i = 0; i < _dataLength; i++)
+    {
+      LRETAIN (_data[i]);
+    }
+
+  return self;
+}
+
++(id) closureWithCode:(void *)code
+                 data:(id *)data
+               length:(int)dataLength
+{
+  return LAUTORELEASE ([[self alloc] initWithCode:code data:data length:dataLength]);
+}
+
+-(NSArray *) applyToArray:(NSArray *)arguments
+{
+  int argc = ([arguments count] + 2);
+  ffi_cif cif;
+  ffi_type *arg_types[argc];
+  ffi_status status;
+  void *argv[argc];
+  id argpointers[argc - 1];
+  id return_value;
+  int i;
+
+  arg_types[0] = &ffi_type_pointer;
+  argv[0] = &_data;
+
+  for (i = 1; i < argc - 1; i++)
+    {
+      arg_types[i] = &ffi_type_pointer;
+      argpointers[i-1] = denullify([arguments objectAtIndex:i]);
+      argv[i] = &argpointers[i-1];
+    }
+
+  arg_types[argc - 1] = &ffi_type_pointer;
+  argv[argc - 1] = &MLKEndOfArgumentsMarker;
+
+  status = ffi_prep_cif (&cif, FFI_DEFAULT_ABI, argc, &ffi_type_pointer, arg_types);
+  if (status != FFI_OK)
+    {
+      [NSException raise:@"MLKInvalidFFITypeException"
+                   format:@"FFI type is invalid (this is probably a bug)."];
+    }
+
+  ffi_call (&cif, FFI_FN (_code), &return_value, (void**)argv);
+
+  // FIXME
+  return [NSArray arrayWithObject:nullify(return_value)];
+}
+
+-(NSString *) description
+{
+  return MLKPrintToString (self);
+}
+
+-(NSString *) descriptionForLisp
+{
+  return [NSString stringWithFormat:@"<Compiled closure @%p>", self];
+}
+
+-(void) dealloc
+{
+  int i;
+
+  [super dealloc];
+
+  // FIXME: Decrease refcount of _code.
+  for (i = 0; i < _dataLength; i++)
+    {
+      LRELEASE (_data[i]);
+    }
+  free (_data);
+}
+@end