From 56925b9c28420d80dc343fe801177da737278d32 Mon Sep 17 00:00:00 2001
From: "Andrii Doroshenko (Xrayez)" <xrayez@gmail.com>
Date: Thu, 31 Oct 2019 13:15:44 +0200
Subject: [PATCH] Provide and print error messages for JSON parsing

Core is not touched, only for binding and scripting.
---
 core/bind/core_bind.cpp                 | 3 +++
 modules/gdscript/gdscript_functions.cpp | 1 +
 2 files changed, 4 insertions(+)

diff --git a/core/bind/core_bind.cpp b/core/bind/core_bind.cpp
index 1d451b2982f..c539f912aaf 100644
--- a/core/bind/core_bind.cpp
+++ b/core/bind/core_bind.cpp
@@ -3165,6 +3165,9 @@ Ref<JSONParseResult> _JSON::parse(const String &p_json) {
 
 	result->error = JSON::parse(p_json, result->result, result->error_string, result->error_line);
 
+	if (result->error != OK) {
+		ERR_PRINTS(vformat("Error parsing JSON at line %s: %s", result->error_line, result->error_string));
+	}
 	return result;
 }
 
diff --git a/modules/gdscript/gdscript_functions.cpp b/modules/gdscript/gdscript_functions.cpp
index c4c7ba5ef79..185eb6c3fc7 100644
--- a/modules/gdscript/gdscript_functions.cpp
+++ b/modules/gdscript/gdscript_functions.cpp
@@ -1274,6 +1274,7 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 
 			if (err != OK) {
 				r_ret = Variant();
+				ERR_PRINTS(vformat("Error parsing JSON at line %s: %s", errl, errs));
 			}
 
 		} break;