Files
firebase-ios-sdk/FirebaseDynamicLinks/Sources/GINInvocation/GINInvocation.m
T
dmandar f5062d861c FDL source, unit tests and app now live in FirebaseDynamicLinks folder. (#4767)
* Move FDL sources to new location.

* Add FDL unit tests.

* Move test app.

* Fix source path.

* Move unit tests path.

* Rename source to sources.

* Change relative path.

* Update podspec.

* Fix header search path.

* Fix relative path for scripts.

* Fix tests.
2020-01-30 11:44:31 -08:00

99 lines
3.0 KiB
Objective-C

/*
* Copyright 2018 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FirebaseDynamicLinks/Sources/GINInvocation/GINInvocation.h"
#import "FirebaseDynamicLinks/Sources/GINInvocation/GINArgument.h"
@implementation GINInvocation
// A method that performs a selector on a target object, and return the result.
+ (id)objectByPerformingSelector:(SEL)selector
onTarget:(id)target
numberOfArguments:(NSInteger)numberOfArguments, ... {
if (![target respondsToSelector:selector]) {
#if DEBUG
[NSException raise:@"InvalidSelectorException" format:@"Invalid selector send to target"];
#endif
return nil;
}
NSMethodSignature *methodSignature = [target methodSignatureForSelector:selector];
NSInvocation *inv = [NSInvocation invocationWithMethodSignature:methodSignature];
[inv setSelector:selector];
[inv setTarget:target];
int index = 2;
va_list argumentList;
va_start(argumentList, numberOfArguments);
for (NSInteger i = 0; i < numberOfArguments; i++) {
[GINArgument setNextArgumentInList:argumentList atIndex:index inInvocation:inv];
}
va_end(argumentList);
[inv invoke];
// This method only returns object.
if ([methodSignature methodReturnLength]) {
CFTypeRef result;
[inv getReturnValue:&result];
if (result) {
CFRetain(result);
}
return (__bridge_transfer id)result;
}
return nil;
}
// A method that performs a selector on a target object, and return the result.
+ (double)doubleByPerformingSelector:(SEL)selector
onTarget:(id)target
numberOfArguments:(NSInteger)numberOfArguments, ... {
if (![target respondsToSelector:selector]) {
#if DEBUG
[NSException raise:@"InvalidSelectorException" format:@"Invalid selector send to target"];
#endif
return 0;
}
NSMethodSignature *methodSignature = [target methodSignatureForSelector:selector];
NSInvocation *inv = [NSInvocation invocationWithMethodSignature:methodSignature];
[inv setSelector:selector];
[inv setTarget:target];
int index = 2;
va_list argumentList;
va_start(argumentList, numberOfArguments);
for (NSInteger i = 0; i < numberOfArguments; i++) {
[GINArgument setNextArgumentInList:argumentList atIndex:index inInvocation:inv];
}
va_end(argumentList);
[inv invoke];
// This method only returns double.
if ([methodSignature methodReturnLength]) {
double doubleValue;
[inv getReturnValue:&doubleValue];
return doubleValue;
}
return 0;
}
@end