/*
* Copyright (c) 2008-2025 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3.0 only,
* as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3.0 along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#import "OFInvocation.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFMethodSignature.h"
@implementation OFInvocation
@synthesize methodSignature = _methodSignature;
+ (instancetype)invocationWithMethodSignature: (OFMethodSignature *)signature
{
return objc_autoreleaseReturnValue(
[[self alloc] initWithMethodSignature: signature]);
}
- (instancetype)initWithMethodSignature: (OFMethodSignature *)signature
{
self = [super init];
@try {
void *pool = objc_autoreleasePoolPush();
size_t numberOfArguments = signature.numberOfArguments;
const char *typeEncoding;
size_t typeSize;
_methodSignature = objc_retain(signature);
_arguments = [[OFMutableArray alloc] init];
for (size_t i = 0; i < numberOfArguments; i++) {
OFMutableData *data;
typeEncoding = [_methodSignature
argumentTypeAtIndex: i];
typeSize = OFSizeOfTypeEncoding(typeEncoding);
data = [OFMutableData dataWithItemSize: typeSize
capacity: 1];
[data increaseCountBy: 1];
[_arguments addObject: data];
}
typeEncoding = _methodSignature.methodReturnType;
typeSize = OFSizeOfTypeEncoding(typeEncoding);
if (typeSize > 0) {
_returnValue = [[OFMutableData alloc]
initWithItemSize: typeSize
capacity: 1];
[_returnValue increaseCountBy: 1];
}
objc_autoreleasePoolPop(pool);
} @catch (id e) {
objc_release(self);
@throw e;
}
return self;
}
- (void)dealloc
{
objc_release(_methodSignature);
objc_release(_arguments);
objc_release(_returnValue);
[super dealloc];
}
- (void)setArgument: (const void *)buffer atIndex: (size_t)idx
{
OFMutableData *data = [_arguments objectAtIndex: idx];
memcpy(data.mutableItems, buffer, data.itemSize);
}
- (void)getArgument: (void *)buffer atIndex: (size_t)idx
{
OFData *data = [_arguments objectAtIndex: idx];
memcpy(buffer, data.items, data.itemSize);
}
- (void)setReturnValue: (const void *)buffer
{
memcpy(_returnValue.mutableItems, buffer, _returnValue.itemSize);
}
- (void)getReturnValue: (void *)buffer
{
memcpy(buffer, _returnValue.items, _returnValue.itemSize);
}
@end