ref: Use forward declarations in header

Sources/Sentry/Profiling/SentryProfiledTracerConcurrency.mm

@@ -24,6 +24,7 @@
 #    import "SentrySamplerDecision.h"
 #    import "SentryTraceProfiler.h"
 #    import "SentryTracer+Private.h"
+#    import "SentryTracerConfiguration.h"
 #    import "SentryTransaction.h"
 
 #    if SENTRY_HAS_UIKIT

Sources/Sentry/SentryHub.m

@@ -20,6 +20,7 @@
 #import "SentrySwift.h"
 #import "SentryTraceOrigin.h"
 #import "SentryTracer.h"
+#import "SentryTracerConfiguration.h"
 #import "SentryTransaction.h"
 #import "SentryTransactionContext+Private.h"
 

Sources/Sentry/SentryPerformanceTracker.m

@@ -7,6 +7,7 @@
 #import "SentrySpanId.h"
 #import "SentrySpanProtocol.h"
 #import "SentryTracer.h"
+#import "SentryTracerConfiguration.h"
 #import "SentryTransactionContext+Private.h"
 
 #import "SentryProfilingConditionals.h"

Sources/Sentry/SentryTracer.m

@@ -23,6 +23,7 @@
 #import "SentryTime.h"
 #import "SentryTraceContext.h"
 #import "SentryTracer+Private.h"
+#import "SentryTracerConfiguration.h"
 #import "SentryTransaction.h"
 #import "SentryTransactionContext.h"
 #import <NSMutableDictionary+Sentry.h>
@@ -173,7 +174,7 @@
 #endif // SENTRY_HAS_UIKIT
 
 #if SENTRY_TARGET_PROFILING_SUPPORTED
     _profilerReferenceID = sentry_startProfilerForTrace(configuration, hub, transactionContext);
     _isProfiling = _profilerReferenceID != nil;
 #endif // SENTRY_TARGET_PROFILING_SUPPORTED
 
@@ -583,7 +584,7 @@
 
 #if SENTRY_TARGET_PROFILING_SUPPORTED
     sentry_stopProfilerDueToFinishedTransaction(
         _hub, _dispatchQueue, transaction, _isProfiling, self.startTimestamp, _startSystemTime
 #    if SENTRY_HAS_UIKIT
         ,
         appStartMeasurement
@@ -642,7 +643,7 @@
     // Prewarming can execute code up to viewDidLoad of a UIViewController, and keep the app in the
     // background. This can lead to auto-generated transactions lasting for minutes or even hours.
     // Therefore, we drop transactions lasting longer than SENTRY_AUTO_TRANSACTION_MAX_DURATION.
     NSTimeInterval transactionDuration = [self.timestamp timeIntervalSinceDate:self.startTimestamp];
     if ([self isAutoGeneratedTransaction]
         && transactionDuration >= SENTRY_AUTO_TRANSACTION_MAX_DURATION) {
         SENTRY_LOG_INFO(@"Auto generated transaction exceeded the max duration of %f seconds. Not "
@@ -701,7 +702,7 @@
 
     @synchronized(_children) {
         for (id<SentrySpan> childSpan in _children) {
             if ([oldest compare:childSpan.timestamp] == NSOrderedAscending) {
                 oldest = childSpan.timestamp;
             }
         }
@@ -822,7 +823,7 @@
     NSDate *appStartEndTimestamp =
         [appStartTimestamp dateByAddingTimeInterval:measurement.duration];
 
     NSTimeInterval difference = [appStartEndTimestamp timeIntervalSinceDate:self.startTimestamp];
 
     // Don't attach app start measurements if too much time elapsed between the end of the app start
     // sequence and the start of the transaction. This makes transactions too long.
@@ -857,7 +858,7 @@
                 ? [NSString stringWithFormat:@"%@.prewarmed", appContextType]
                 : appContextType;
             NSMutableDictionary *context =
                 [[NSMutableDictionary alloc] initWithDictionary:[transaction context]];
             NSDictionary *appContext = @{ @"app" : @ { @"start_type" : appStartType } };
             [SentryDictionary mergeEntriesFromDictionary:appContext intoDictionary:context];
             [transaction setContext:context];

Sources/Sentry/SentryUIEventTrackerTransactionMode.m

@@ -13,6 +13,7 @@
 #    import <SentrySpanOperation.h>
 #    import <SentryTraceOrigin.h>
 #    import <SentryTracer.h>
+#    import <SentryTracerConfiguration.h>
 #    import <SentryTransactionContext+Private.h>
 
 NS_ASSUME_NONNULL_BEGIN
@@ -105,7 +106,7 @@
     SENTRY_LOG_DEBUG(@"Automatically started a new transaction with name: %@", action);
 
     if (accessibilityIdentifier) {
         [transaction setTagValue:accessibilityIdentifier forKey:@"accessibilityIdentifier"];
     }
 
     transaction.finishCallback = ^(SentryTracer *tracer) {

Sources/Sentry/include/SentryTracer.h

@@ -1,8 +1,6 @@
 #import "SentryDefines.h"
 #import "SentryProfilingConditionals.h"
 #import "SentrySpan.h"
-#import "SentrySpanProtocol.h"
-#import "SentryTracerConfiguration.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
@@ -13,8 +11,11 @@ NS_ASSUME_NONNULL_BEGIN
 @class SentryTraceContext;
 @class SentryTraceHeader;
 @class SentryTracer;
+@class SentryTracerConfiguration;
 @class SentryTransactionContext;
 
+@protocol SentrySpan;
+
 static NSTimeInterval const SentryTracerDefaultTimeout = 3.0;
 
 static const NSTimeInterval SENTRY_AUTO_TRANSACTION_MAX_DURATION = 500.0;

Sources/Sentry/include/SentryUIViewControllerPerformanceTracker.h

@@ -2,7 +2,6 @@
 
 #if SENTRY_HAS_UIKIT
 
-@class SentrySpan;
 @class SentryInAppLogic;
 @class SentryTimeToDisplayTracker;
 @class UIViewController;