739351d476
Change log:95336cb92b..191d55580eFull diff:95336cb92b..191d55580eRoll chromium third_party 4e16929f46..3a8f2a9e1e Change log:4e16929f46..3a8f2a9e1eChanged dependencies: * src/tools:c44a3f5eca..f524a53b81DEPS diff:95336cb92b..191d55580e/DEPS No update to Clang. TBR=titovartem@google.com, BUG=None CQ_INCLUDE_TRYBOTS=master.internal.tryserver.corp.webrtc:linux_internal Change-Id: Ic9c4a62b050383646e9fcf5cc07a5653c14ac06e Reviewed-on: https://webrtc-review.googlesource.com/76120 Reviewed-by: Patrik Höglund <phoglund@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Artem Titov <titovartem@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23205}
62 lines
2.1 KiB
Objective-C
62 lines
2.1 KiB
Objective-C
/*
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* Copyright (c) 2009-2015 Erik Doernenburg and contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use these files except in compliance with the License. You may obtain
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* a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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#import "NSMethodSignature+OCMAdditions.h"
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#import "OCMFunctions.h"
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#import <objc/runtime.h>
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@implementation NSMethodSignature(OCMAdditions)
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- (BOOL)usesSpecialStructureReturn
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{
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const char *types = OCMTypeWithoutQualifiers([self methodReturnType]);
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if((types == NULL) || (types[0] != '{'))
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return NO;
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/* In some cases structures are returned by ref. The rules are complex and depend on the
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architecture, see:
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http://sealiesoftware.com/blog/archive/2008/10/30/objc_explain_objc_msgSend_stret.html
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http://developer.apple.com/library/mac/#documentation/DeveloperTools/Conceptual/LowLevelABI/000-Introduction/introduction.html
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https://github.com/atgreen/libffi/blob/master/src/x86/ffi64.c
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http://www.uclibc.org/docs/psABI-x86_64.pdf
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http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042e/IHI0042E_aapcs.pdf
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NSMethodSignature knows the details but has no API to return it, though it is in
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the debugDescription. Horribly kludgy.
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*/
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NSRange range = [[self debugDescription] rangeOfString:@"is special struct return? YES"];
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return range.length > 0;
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}
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- (NSString *)fullTypeString
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{
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NSMutableString *typeString = [NSMutableString string];
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[typeString appendFormat:@"%s", [self methodReturnType]];
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for (NSUInteger i=0; i<[self numberOfArguments]; i++)
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[typeString appendFormat:@"%s", [self getArgumentTypeAtIndex:i]];
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return typeString;
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}
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- (const char *)fullObjCTypes
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{
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return [[self fullTypeString] UTF8String];
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}
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@end
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