react-native/React/Modules/RCTExceptionsManager.m

90 lines
2.9 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTExceptionsManager.h"
#import "RCTLog.h"
#import "RCTRedBox.h"
#import "RCTRootView.h"
@implementation RCTExceptionsManager
{
__weak id<RCTExceptionsManagerDelegate> _delegate;
NSUInteger _reloadRetries;
}
#ifndef DEBUG
static NSUInteger RCTReloadRetries = 0;
#endif
RCT_EXPORT_MODULE()
- (instancetype)initWithDelegate:(id<RCTExceptionsManagerDelegate>)delegate
{
if ((self = [super init])) {
_delegate = delegate;
_maxReloadAttempts = 0;
}
return self;
}
- (instancetype)init
{
return [self initWithDelegate:nil];
}
RCT_EXPORT_METHOD(reportUnhandledException:(NSString *)message
stack:(NSArray *)stack)
{
if (_delegate) {
[_delegate unhandledJSExceptionWithMessage:message stack:stack];
return;
}
#ifdef DEBUG
[[RCTRedBox sharedInstance] showErrorMessage:message withStack:stack];
#else
if (RCTReloadRetries < _maxReloadAttempts) {
RCTReloadRetries++;
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] postNotificationName:RCTReloadNotification object:nil];
});
} else {
NSError *error;
const NSUInteger MAX_SANITIZED_LENGTH = 75;
// Filter out numbers so the same base errors are mapped to the same categories independent of incorrect values.
NSString *pattern = @"[+-]?\\d+[,.]?\\d*";
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:pattern options:0 error:&error];
RCTAssert(error == nil, @"Bad regex pattern: %@", pattern);
NSString *sanitizedMessage = [regex stringByReplacingMatchesInString:message
options:0
range:NSMakeRange(0, message.length)
withTemplate:@"<num>"];
if (sanitizedMessage.length > MAX_SANITIZED_LENGTH) {
sanitizedMessage = [[sanitizedMessage substringToIndex:MAX_SANITIZED_LENGTH] stringByAppendingString:@"..."];
}
NSMutableString *prettyStack = [@"\n" mutableCopy];
for (NSDictionary *frame in stack) {
[prettyStack appendFormat:@"%@@%@:%@\n", frame[@"methodName"], frame[@"lineNumber"], frame[@"column"]];
}
NSString *name = [@"Unhandled JS Exception: " stringByAppendingString:sanitizedMessage];
[NSException raise:name format:@"Message: %@, stack: %@", message, prettyStack];
}
#endif
}
RCT_EXPORT_METHOD(updateExceptionMessage:(NSString *)message
stack:(NSArray *)stack)
{
[[RCTRedBox sharedInstance] updateErrorMessage:message withStack:stack];
}
@end