Update OCMock to 3.1.5

third_party/ocmock/OCMock/NSMethodSignature+OCMAdditions.m

-//---------------------------------------------------------------------------------------
-//  $Id$
-//  Copyright (c) 2009 by Mulle Kybernetik. See License file for details.
-//---------------------------------------------------------------------------------------
+/*
+ *  Copyright (c) 2009-2015 Erik Doernenburg and contributors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use these files 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 "NSMethodSignature+OCMAdditions.h"
+#import "OCMFunctions.h"
+#import <objc/runtime.h>
 
 
 @implementation NSMethodSignature(OCMAdditions)
 
-- (const char *)methodReturnTypeWithoutQualifiers
+- (BOOL)usesSpecialStructureReturn
 {
-        const char *returnType = [self methodReturnType];
-        while(strchr("rnNoORV", returnType[0]) != NULL)
-                returnType += 1;
-        return returnType;
+    const char *types = OCMTypeWithoutQualifiers([self methodReturnType]);
+
+    if((types == NULL) || (types[0] != '{'))
+        return NO;
+
+    /* In some cases structures are returned by ref. The rules are complex and depend on the
+       architecture, see:
+
+       http://sealiesoftware.com/blog/archive/2008/10/30/objc_explain_objc_msgSend_stret.html
+       http://developer.apple.com/library/mac/#documentation/DeveloperTools/Conceptual/LowLevelABI/000-Introduction/introduction.html
+       https://github.com/atgreen/libffi/blob/master/src/x86/ffi64.c
+       http://www.uclibc.org/docs/psABI-x86_64.pdf
+       http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042e/IHI0042E_aapcs.pdf
+
+       NSMethodSignature knows the details but has no API to return it, though it is in
+       the debugDescription. Horribly kludgy.
+    */
+    NSRange range = [[self debugDescription] rangeOfString:@"is special struct return? YES"];
+    return range.length > 0;
+}
+
+- (NSString *)fullTypeString
+{
+    NSMutableString *typeString = [NSMutableString string];
+    [typeString appendFormat:@"%s", [self methodReturnType]];
+    for (NSUInteger i=0; i<[self numberOfArguments]; i++)
+        [typeString appendFormat:@"%s", [self getArgumentTypeAtIndex:i]];
+    return typeString;
+}
+
+- (const char *)fullObjCTypes
+{
+    return [[self fullTypeString] UTF8String];
 }
 
 @end