diff options
| -rw-r--r-- | GNUmakefile | 17 | ||||
| -rw-r--r-- | MLKBinding.h | 42 | ||||
| -rw-r--r-- | MLKBinding.m | 85 |
3 files changed, 136 insertions, 8 deletions
diff --git a/GNUmakefile b/GNUmakefile index 7d2eda3..31b6576 100644 --- a/GNUmakefile +++ b/GNUmakefile @@ -25,14 +25,15 @@ BUNDLE_NAME = Test ADDITIONAL_OBJCFLAGS = -Wall -ToiletKit_OBJC_FILES = MLKCharacter.m MLKCons.m MLKDoubleFloat.m \ - MLKDynamicContext.m MLKEndOfFileError.m \ - MLKEnvironment.m MLKError.m MLKFloat.m \ - MLKInteger.m MLKInterpreter.m MLKLinkedList.m \ - MLKLexicalContext.m MLKLexicalEnvironment.m \ - MLKLispValue.m MLKPackage.m MLKParenReader.m \ - MLKRatio.m MLKReader.m MLKReadtable.m \ - MLKReaderError.m MLKSingleFloat.m MLKStream.m \ +ToiletKit_OBJC_FILES = MLKCharacter.m MLKCons.m MLKBinding.m \ + MLKDoubleFloat.m MLKDynamicContext.m \ + MLKEndOfFileError.m MLKEnvironment.m MLKError.m \ + MLKFloat.m MLKInteger.m MLKInterpreter.m \ + MLKLinkedList.m MLKLexicalContext.m \ + MLKLexicalEnvironment.m MLKLispValue.m \ + MLKPackage.m MLKParenReader.m MLKRatio.m \ + MLKReader.m MLKReadtable.m MLKReaderError.m \ + MLKSingleFloat.m MLKStream.m \ MLKStringInputStream.m MLKSymbol.m \ MLKThrowException.m \ MLKUndefinedVariableException.m \ diff --git a/MLKBinding.h b/MLKBinding.h new file mode 100644 index 0000000..8882200 --- /dev/null +++ b/MLKBinding.h @@ -0,0 +1,42 @@ +/* -*- 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 <Foundation/NSObject.h> + + +@interface MLKBinding : NSObject +{ + id value; +} + ++(void) initialize; + +-(MLKBinding *) init; +-(MLKBinding *) initWithValue:(id)something; + ++(MLKBinding *) binding; ++(MLKBinding *) bindingWithValue:(id)something; + +-(void) setValue:(id)something; +-(id) value; + +-(BOOL) boundp; +-(void) makunbound; + +-(void) dealloc; +@end diff --git a/MLKBinding.m b/MLKBinding.m new file mode 100644 index 0000000..b3e2826 --- /dev/null +++ b/MLKBinding.m @@ -0,0 +1,85 @@ +/* -*- 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 "MLKBinding.h" +#import "runtime-compatibility.h" + +#import <Foundation/NSException.h> + + +static id UNBOUND; + + +@implementation MLKBinding ++(void) initialize +{ + UNBOUND = [[NSObject alloc] init]; +} + +-(MLKBinding *) init +{ + return [self initWithValue:UNBOUND]; +} + +-(MLKBinding *) initWithValue:(id)something +{ + self = [super init]; + ASSIGN (value, something); + return self; +} + ++(MLKBinding *) binding +{ + return AUTORELEASE ([[self alloc] init]); +} + ++(MLKBinding *) bindingWithValue:(id)something +{ + return AUTORELEASE ([[self alloc] initWithValue:something]); +} + +-(void) setValue:(id)something +{ + ASSIGN (value, something); +} + +-(id) value +{ + if (value == UNBOUND) + [NSException raise:@"MLKUnboundVariableError" + format:@""]; + + return value; +} + +-(BOOL) boundp +{ + return !(value == UNBOUND); +} + +-(void) makunbound +{ + ASSIGN (value, UNBOUND); +} + +-(void) dealloc +{ + RELEASE (value); + [super dealloc]; +} +@end |