WebKit/Source/JavaScriptCore/API/tests/JSExportTests.mm at main · WebKit/WebKit · GitHub

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* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''

* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS

* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

* THE POSSIBILITY OF SUCH DAMAGE.

#import "config.h"

#import "JSExportTests.h"

#import <objc/runtime.h>

#import <objc/objc.h>

#if JSC_OBJC_API_ENABLED

extern "C" void checkResult(NSString *description, bool passed);

@interface JSExportTests : NSObject

+ (void) exportInstanceMethodWithIdProtocolTest;

+ (void) exportInstanceMethodWithClassProtocolTest;

+ (void) exportDynamicallyGeneratedProtocolTest;

@end

@protocol TruthTeller

- (BOOL) returnTrue;

@end

@interface TruthTeller : NSObject<TruthTeller>

@end

@implementation TruthTeller

- (BOOL) returnTrue

{

return true;

}

@end

@protocol ExportMethodWithIdProtocol <JSExport>

- (void) methodWithIdProtocol:(id<TruthTeller>)object;

@end

@interface ExportMethodWithIdProtocol : NSObject<ExportMethodWithIdProtocol>

@end

@implementation ExportMethodWithIdProtocol

- (void) methodWithIdProtocol:(id<TruthTeller>)object

{

checkResult(@"Exporting a method with id<protocol> in the type signature", [object returnTrue]);

}

@end

@protocol ExportMethodWithClassProtocol <JSExport>

- (void) methodWithClassProtocol:(NSObject<TruthTeller> *)object;

@end

@interface ExportMethodWithClassProtocol : NSObject<ExportMethodWithClassProtocol>

@end

@implementation ExportMethodWithClassProtocol

- (void) methodWithClassProtocol:(NSObject<TruthTeller> *)object

{

checkResult(@"Exporting a method with class<protocol> in the type signature", [object returnTrue]);

}

@end

@interface NoUnderscorePrefix : NSObject

@end

@implementation NoUnderscorePrefix

@end

@interface _UnderscorePrefixNoExport : NoUnderscorePrefix

@end

@implementation _UnderscorePrefixNoExport

@end

@protocol Initializing <JSExport>

- (instancetype)init;

@end

@interface _UnderscorePrefixWithExport : NoUnderscorePrefix <Initializing>

@end

@implementation _UnderscorePrefixWithExport

@end

@implementation JSExportTests

+ (void) exportInstanceMethodWithIdProtocolTest

{

JSContext *context = [[JSContext alloc] init];

context[@"ExportMethodWithIdProtocol"] = [ExportMethodWithIdProtocol class];

context[@"makeTestObject"] = ^{

return [[ExportMethodWithIdProtocol alloc] init];

};

context[@"opaqueObject"] = [[TruthTeller alloc] init];

[context evaluateScript:@"makeTestObject().methodWithIdProtocol(opaqueObject);"];

checkResult(@"Successfully exported instance method", !context.exception);

}

+ (void) exportInstanceMethodWithClassProtocolTest

{

JSContext *context = [[JSContext alloc] init];

context[@"ExportMethodWithClassProtocol"] = [ExportMethodWithClassProtocol class];

context[@"makeTestObject"] = ^{

return [[ExportMethodWithClassProtocol alloc] init];

};

context[@"opaqueObject"] = [[TruthTeller alloc] init];

[context evaluateScript:@"makeTestObject().methodWithClassProtocol(opaqueObject);"];

checkResult(@"Successfully exported instance method", !context.exception);

}

+ (void) exportDynamicallyGeneratedProtocolTest

{

JSContext *context = [[JSContext alloc] init];

Protocol *dynProtocol = objc_allocateProtocol("NSStringJSExport");

Protocol *jsExportProtocol = @protocol(JSExport);

protocol_addProtocol(dynProtocol, jsExportProtocol);

Method method = class_getInstanceMethod([NSString class], @selector(boolValue));

protocol_addMethodDescription(dynProtocol, @selector(boolValue), method_getTypeEncoding(method), YES, YES);

NSLog(@"type encoding = %s", method_getTypeEncoding(method));

protocol_addMethodDescription(dynProtocol, @selector(boolValue), "B@:", YES, YES);

objc_registerProtocol(dynProtocol);

class_addProtocol([NSString class], dynProtocol);

context[@"NSString"] = [NSString class];

context[@"myString"] = @"YES";

JSValue *value = [context evaluateScript:@"myString.boolValue()"];

checkResult(@"Dynamically generated JSExport-ed protocols are ignored", [value isUndefined] && !!context.exception);

}

+ (void)classNamePrefixedWithUnderscoreTest

{

JSContext *context = [[JSContext alloc] init];

context[@"_UnderscorePrefixNoExport"] = [_UnderscorePrefixNoExport class];

context[@"_UnderscorePrefixWithExport"] = [_UnderscorePrefixWithExport class];

checkResult(@"Non-underscore-prefixed ancestor class used when there are no exports", [context[@"_UnderscorePrefixNoExport"] toObject] == [NoUnderscorePrefix class]);

checkResult(@"Underscore-prefixed class used when there are exports", [context[@"_UnderscorePrefixWithExport"] toObject] == [_UnderscorePrefixWithExport class]);

JSValue *withExportInstance = [context evaluateScript:@"new _UnderscorePrefixWithExport()"];

checkResult(@"Exports present on underscore-prefixed class", !context.exception && !withExportInstance.isUndefined);

}

@end

@protocol AJSExport <JSExport>

- (instancetype)init;

@end

@interface A : NSObject <AJSExport>

@end

@implementation A

@end

static void wrapperLifetimeIsTiedToGlobalObject()

{

JSGlobalContextRef contextRef;

@autoreleasepool {

JSContext *context = [[JSContext alloc] init];

contextRef = JSGlobalContextRetain(context.JSGlobalContextRef);

context[@"A"] = A.class;

checkResult(@"Initial wrapper's constructor is itself", [[context evaluateScript:@"new A().constructor === A"] toBool]);

}

@autoreleasepool {

JSContext *context = [JSContext contextWithJSGlobalContextRef:contextRef];

checkResult(@"New context's wrapper's constructor is itself", [[context evaluateScript:@"new A().constructor === A"] toBool]);

}

JSGlobalContextRelease(contextRef);

}

static void wrapperForNSObjectisObject()

{

@autoreleasepool {

JSContext *context = [[JSContext alloc] init];

context[@"Object"] = [[NSNull alloc] init];

context.exception = nil;

context[@"A"] = NSObject.class;

checkResult(@"Should not throw an exception when wrapping NSObject and Object has been changed", ![context exception]);

}

void runJSExportTests()

{

@autoreleasepool {

[JSExportTests exportInstanceMethodWithIdProtocolTest];

[JSExportTests exportInstanceMethodWithClassProtocolTest];

[JSExportTests exportDynamicallyGeneratedProtocolTest];

[JSExportTests classNamePrefixedWithUnderscoreTest];

}

wrapperLifetimeIsTiedToGlobalObject();

wrapperForNSObjectisObject();

}

#endif // JSC_OBJC_API_ENABLED

WebKit/Source/JavaScriptCore/API/tests/JSExportTests.mm at main · WebKit/WebKit · GitHub

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