react-native/React/Base/RCTJSStackFrame.m

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/**
* 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 "RCTJSStackFrame.h"
#import "RCTLog.h"
#import "RCTUtils.h"
static NSRegularExpression *RCTJSStackFrameRegex()
{
static dispatch_once_t onceToken;
static NSRegularExpression *_regex;
dispatch_once(&onceToken, ^{
NSError *regexError;
_regex = [NSRegularExpression regularExpressionWithPattern:@"^([^@]+)@(.*):(\\d+):(\\d+)$" options:0 error:&regexError];
if (regexError) {
RCTLogError(@"Failed to build regex: %@", [regexError localizedDescription]);
}
});
return _regex;
}
@implementation RCTJSStackFrame
- (instancetype)initWithMethodName:(NSString *)methodName file:(NSString *)file lineNumber:(NSInteger)lineNumber column:(NSInteger)column
{
if (self = [super init]) {
_methodName = methodName;
_file = file;
_lineNumber = lineNumber;
_column = column;
}
return self;
}
- (NSDictionary *)toDictionary
{
return @{
@"methodName": RCTNullIfNil(self.methodName),
@"file": RCTNullIfNil(self.file),
@"lineNumber": @(self.lineNumber),
@"column": @(self.column)
};
}
+ (instancetype)stackFrameWithLine:(NSString *)line
{
NSTextCheckingResult *match = [RCTJSStackFrameRegex() firstMatchInString:line options:0 range:NSMakeRange(0, line.length)];
if (!match) {
return nil;
}
NSString *methodName = [line substringWithRange:[match rangeAtIndex:1]];
NSString *file = [line substringWithRange:[match rangeAtIndex:2]];
NSString *lineNumber = [line substringWithRange:[match rangeAtIndex:3]];
NSString *column = [line substringWithRange:[match rangeAtIndex:4]];
return [[self alloc] initWithMethodName:methodName
file:file
lineNumber:[lineNumber integerValue]
column:[column integerValue]];
}
+ (instancetype)stackFrameWithDictionary:(NSDictionary *)dict
{
return [[self alloc] initWithMethodName:dict[@"methodName"]
file:dict[@"file"]
lineNumber:[dict[@"lineNumber"] integerValue]
column:[dict[@"column"] integerValue]];
}
+ (NSArray<RCTJSStackFrame *> *)stackFramesWithLines:(NSString *)lines
{
NSMutableArray *stack = [NSMutableArray new];
for (NSString *line in [lines componentsSeparatedByString:@"\n"]) {
RCTJSStackFrame *frame = [self stackFrameWithLine:line];
if (frame) {
[stack addObject:frame];
}
}
return stack;
}
+ (NSArray<RCTJSStackFrame *> *)stackFramesWithDictionaries:(NSArray<NSDictionary *> *)dicts
{
NSMutableArray *stack = [NSMutableArray new];
for (NSDictionary *dict in dicts) {
RCTJSStackFrame *frame = [self stackFrameWithDictionary:dict];
if (frame) {
[stack addObject:frame];
}
}
return stack;
}
@end