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[iOS] Allow RCTBundleURLProvider to request an inline source map #37878

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[iOS] Allow RCTBundleURLProvider to request an inline source map #37878

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b834be9
[iOS] Inline the source map if we're using JSC
Saadnajmi Jun 14, 2023
7ef43f5
Don't inline the source map by default
Saadnajmi Jun 14, 2023
a65abff
Don't break the public API
Saadnajmi Jun 15, 2023
e9fb38e
nits
Saadnajmi Jun 16, 2023
127f8fa
Fix tests
Saadnajmi Jun 16, 2023
56a85f1
Update AppDelegate.mm
Saadnajmi Jun 21, 2023
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8 changes: 6 additions & 2 deletions packages/react-native/React/Base/RCTBundleURLProvider.h
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ RCT_EXTERN void RCTBundleURLProviderAllowPackagerServerAccess(BOOL allowed);

@property (nonatomic, assign) BOOL enableMinification;
@property (nonatomic, assign) BOOL enableDev;
@property (nonatomic, assign) BOOL inlineSourceMap;

/**
* The scheme/protocol used of the packager, the default is the http protocol
Expand All @@ -118,20 +119,23 @@ RCT_EXTERN void RCTBundleURLProviderAllowPackagerServerAccess(BOOL allowed);
* - enableDev: Whether to keep or remove `__DEV__` blocks from the bundle.
* - enableMinification: Enables or disables minification. Usually production bundles are minified and development
* bundles are not.
* - inlineSourceMap: Determines whether the source map is inline in the JS bundle. This is useful for debugging with Safari /JavascriptCore.
* - modulesOnly: When true, will only send module definitions without polyfills and without the require-runtime.
* - runModule: When true, will run the main module after defining all modules. This is used in the main bundle but not
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* in split bundles.
*/
+ (NSURL *)jsBundleURLForBundleRoot:(NSString *)bundleRoot
packagerHost:(NSString *)packagerHost
enableDev:(BOOL)enableDev
enableMinification:(BOOL)enableMinification;
enableMinification:(BOOL)enableMinification
inlineSourceMap:(BOOL)inlineSourceMap;

+ (NSURL *)jsBundleURLForBundleRoot:(NSString *)bundleRoot
packagerHost:(NSString *)packagerHost
packagerScheme:(NSString *)scheme
enableDev:(BOOL)enableDev
enableMinification:(BOOL)enableMinification
inlineSourceMap:(BOOL)inlineSourceMap
modulesOnly:(BOOL)modulesOnly
runModule:(BOOL)runModule;
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/**
Expand All @@ -142,6 +146,6 @@ RCT_EXTERN void RCTBundleURLProviderAllowPackagerServerAccess(BOOL allowed);
+ (NSURL *)resourceURLForResourcePath:(NSString *)path
packagerHost:(NSString *)packagerHost
scheme:(NSString *)scheme
query:(NSString *)query;
queryItems:(NSArray<NSURLQueryItem *> *)queryItems;
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@end
44 changes: 31 additions & 13 deletions packages/react-native/React/Base/RCTBundleURLProvider.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ void RCTBundleURLProviderAllowPackagerServerAccess(BOOL allowed)
static NSString *const kRCTJsLocationKey = @"RCT_jsLocation";
static NSString *const kRCTEnableDevKey = @"RCT_enableDev";
static NSString *const kRCTEnableMinificationKey = @"RCT_enableMinification";
static NSString *const kRCTInlineSourceMapKey = @"RCT_inlineSourceMap";

@implementation RCTBundleURLProvider

Expand Down Expand Up @@ -187,6 +188,7 @@ - (NSURL *)jsBundleURLForBundleRoot:(NSString *)bundleRoot fallbackURLProvider:(
packagerScheme:[self packagerScheme]
enableDev:[self enableDev]
enableMinification:[self enableMinification]
inlineSourceMap:[self inlineSourceMap]
modulesOnly:NO
runModule:YES];
}
Expand All @@ -199,6 +201,7 @@ - (NSURL *)jsBundleURLForSplitBundleRoot:(NSString *)bundleRoot
packagerScheme:[self packagerScheme]
enableDev:[self enableDev]
enableMinification:[self enableMinification]
inlineSourceMap:[self inlineSourceMap]
modulesOnly:YES
runModule:NO];
}
Expand Down Expand Up @@ -238,20 +241,22 @@ - (NSURL *)resourceURLForResourceRoot:(NSString *)root
return [[self class] resourceURLForResourcePath:path
packagerHost:packagerServerHostPort
scheme:packagerServerScheme
query:nil];
queryItems:nil];
}

+ (NSURL *)jsBundleURLForBundleRoot:(NSString *)bundleRoot
packagerHost:(NSString *)packagerHost
enableDev:(BOOL)enableDev
enableMinification:(BOOL)enableMinification
inlineSourceMap:(BOOL)inlineSourceMap

{
return [self jsBundleURLForBundleRoot:bundleRoot
packagerHost:packagerHost
packagerScheme:nil
enableDev:enableDev
enableMinification:enableMinification
inlineSourceMap:inlineSourceMap
modulesOnly:NO
runModule:YES];
}
Expand All @@ -261,36 +266,38 @@ + (NSURL *)jsBundleURLForBundleRoot:(NSString *)bundleRoot
packagerScheme:(NSString *)scheme
enableDev:(BOOL)enableDev
enableMinification:(BOOL)enableMinification
inlineSourceMap:(BOOL)inlineSourceMap
modulesOnly:(BOOL)modulesOnly
runModule:(BOOL)runModule
{
NSString *path = [NSString stringWithFormat:@"/%@.bundle", bundleRoot];
BOOL lazy = enableDev;
// When we support only iOS 8 and above, use queryItems for a better API.
NSString *query = [NSString stringWithFormat:@"platform=ios&dev=%@&lazy=%@&minify=%@&modulesOnly=%@&runModule=%@",
enableDev ? @"true" : @"false",
lazy ? @"true" : @"false",
enableMinification ? @"true" : @"false",
modulesOnly ? @"true" : @"false",
runModule ? @"true" : @"false"];
NSArray<NSURLQueryItem *> *queryItems = @[
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[[NSURLQueryItem alloc] initWithName:@"dev" value:enableDev ? @"true" : @"false"],
[[NSURLQueryItem alloc] initWithName:@"lazy" value:lazy ? @"true" : @"false"],
[[NSURLQueryItem alloc] initWithName:@"minify" value:enableMinification ? @"true" : @"false"],
[[NSURLQueryItem alloc] initWithName:@"inlineSourceMap" value:inlineSourceMap ? @"true" : @"false"],
[[NSURLQueryItem alloc] initWithName:@"modulesOnly" value:modulesOnly ? @"true" : @"false"],
[[NSURLQueryItem alloc] initWithName:@"runModule" value:runModule ? @"true" : @"false"],
];

NSString *bundleID = [[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString *)kCFBundleIdentifierKey];
if (bundleID) {
query = [NSString stringWithFormat:@"%@&app=%@", query, bundleID];
queryItems = [queryItems arrayByAddingObject:[[NSURLQueryItem alloc] initWithName:@"app" value:bundleID]];
}
return [[self class] resourceURLForResourcePath:path packagerHost:packagerHost scheme:scheme query:query];
return [[self class] resourceURLForResourcePath:path packagerHost:packagerHost scheme:scheme queryItems:queryItems];
}

+ (NSURL *)resourceURLForResourcePath:(NSString *)path
packagerHost:(NSString *)packagerHost
scheme:(NSString *)scheme
query:(NSString *)query
queryItems:(NSArray<NSURLQueryItem *> *)queryItems
{
NSURLComponents *components = [NSURLComponents componentsWithURL:serverRootWithHostPort(packagerHost, scheme)
resolvingAgainstBaseURL:NO];
components.path = path;
if (query != nil) {
components.query = query;
if (queryItems != nil) {
components.queryItems = queryItems;
}
return components.URL;
}
Expand All @@ -312,6 +319,11 @@ - (BOOL)enableMinification
return [[NSUserDefaults standardUserDefaults] boolForKey:kRCTEnableMinificationKey];
}

- (BOOL)inlineSourceMap
{
return [[NSUserDefaults standardUserDefaults] boolForKey:kRCTInlineSourceMapKey];
}

- (NSString *)jsLocation
{
return [[NSUserDefaults standardUserDefaults] stringForKey:kRCTJsLocationKey];
Expand Down Expand Up @@ -341,6 +353,12 @@ - (void)setEnableMinification:(BOOL)enableMinification
[self updateValue:@(enableMinification) forKey:kRCTEnableMinificationKey];
}

- (void)setInlineSourceMap:(BOOL)inlineSourceMap
{
[self updateValue:@(inlineSourceMap) forKey:kRCTInlineSourceMapKey];
}


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- (void)setPackagerScheme:(NSString *)packagerScheme
{
[self updateValue:packagerScheme forKey:kRCTPackagerSchemeKey];
Expand Down
3 changes: 3 additions & 0 deletions packages/rn-tester/RNTester/AppDelegate.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,9 @@ - (NSDictionary *)prepareInitialProps

- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
{
#if !USE_HERMES
[[RCTBundleURLProvider sharedSettings] setInlineSourceMap:YES];
#endif
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return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"js/RNTesterApp.ios"];
}

Expand Down