From 187c762137474370991116d2438037ceb22798b8 Mon Sep 17 00:00:00 2001
From: Paul Beusterien <paulbeusterien@google.com>
Date: Sun, 10 Sep 2017 11:47:23 -0700
Subject: Enable FIRLogger to be weakly linked (#244)

---
 Firebase/Core/FIRLogger.m         | 13 +++++++++++++
 Firebase/Core/Private/FIRLogger.h | 23 +++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/Firebase/Core/FIRLogger.m b/Firebase/Core/FIRLogger.m
index e20b64d..6f2caef 100644
--- a/Firebase/Core/FIRLogger.m
+++ b/Firebase/Core/FIRLogger.m
@@ -233,3 +233,16 @@ FIR_LOGGING_FUNCTION(Info)
 FIR_LOGGING_FUNCTION(Debug)
 
 #undef FIR_MAKE_LOGGER
+
+@implementation FIRLoggerWrapper
+
++(void) logWithLevel:(FIRLoggerLevel)level
+         withService:(FIRLoggerService)service
+            withCode:(NSString *)messageCode
+         withMessage:(NSString *)message
+            withArgs:(va_list) args
+{
+  FIRLogBasic(level, service, messageCode, message, args);
+}
+
+@end
diff --git a/Firebase/Core/Private/FIRLogger.h b/Firebase/Core/Private/FIRLogger.h
index ee862ce..5f76e1c 100644
--- a/Firebase/Core/Private/FIRLogger.h
+++ b/Firebase/Core/Private/FIRLogger.h
@@ -120,4 +120,27 @@ extern void FIRLogDebug(FIRLoggerService service, NSString *messageCode, NSStrin
 }  // extern "C"
 #endif  // __cplusplus
 
+@interface FIRLoggerWrapper : NSObject
+
+/**
+ * Objective-C wrapper for FIRLogBasic to allow weak linking to FIRLogger
+ * (required) log level (one of the FIRLoggerLevel enum values).
+ * (required) service name of type FIRLoggerService.
+ * (required) message code starting with "I-" which means iOS, followed by a capitalized
+ *            three-character service identifier and a six digit integer message ID that is unique
+ *            within the service.
+ *            An example of the message code is @"I-COR000001".
+ * (required) message string which can be a format string.
+ * (optional) variable arguments list obtained from calling va_start, used when message is a format
+ *            string.
+ */
+
++(void) logWithLevel:(FIRLoggerLevel)level
+         withService:(FIRLoggerService)service
+            withCode:(NSString *)messageCode
+         withMessage:(NSString *)message
+            withArgs:(va_list)args;
+
+@end
+
 NS_ASSUME_NONNULL_END
-- 
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