/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <ctype.h>
#import "OFMethodSignature.h"
#import "OFData.h"
#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
@implementation OFMethodSignature
+ (instancetype)signatureWithObjCTypes: (const char*)types
{
return [[[self alloc] initWithObjCTypes: types] autorelease];
}
- initWithObjCTypes: (const char *)types
{
self = [super init];
@try {
size_t length;
const char *last;
if (types == NULL)
@throw [OFInvalidArgumentException exception];
length = strlen(types);
if (length == 0)
@throw [OFInvalidFormatException exception];
_types = [self allocMemoryWithSize: length + 1];
memcpy(_types, types, length);
_typesPointers = [[OFMutableData alloc]
initWithItemSize: sizeof(char *)];
last = _types;
for (size_t i = 0; i < length; i++) {
if (isdigit(_types[i])) {
if (last == _types + i)
@throw [OFInvalidFormatException
exception];
_types[i] = '\0';
[_typesPointers addItem: &last];
i++;
for (; i < length && isdigit(_types[i]); i++);
last = _types + i;
i--;
} else if (_types[i] == '{') {
size_t depth = 0;
for (; i < length; i++) {
if (_types[i] == '{')
depth++;
else if (_types[i] == '}') {
if (--depth == 0)
break;
}
}
if (depth != 0)
@throw [OFInvalidFormatException
exception];
} else if (_types[i] == '(') {
size_t depth = 0;
for (; i < length; i++) {
if (_types[i] == '(')
depth++;
else if (_types[i] == ')') {
if (--depth == 0)
break;
}
}
if (depth != 0)
@throw [OFInvalidFormatException
exception];
}
}
if (last < _types + length)
@throw [OFInvalidFormatException exception];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_typesPointers release];
[super dealloc];
}
- (size_t)numberOfArguments
{
return [_typesPointers count] - 1;
}
- (const char *)methodReturnType
{
return *(const char **)[_typesPointers firstItem];
}
- (const char *)argumentTypeAtIndex: (size_t)index
{
return *(const char **)[_typesPointers itemAtIndex: index + 1];
}
@end