[C#/TypeScript] Correct nullable array check in to-human conversions

...we have a pointer/long at this point, we shoulnd't be comparing
to `null`

Author: TheBlueMatt

csharp_strings.py

@@ -595,6 +595,9 @@ def get_java_arr_elem(self, elem_ty, arr_name, idx):
         else:
             assert False
 
+    def check_c_arr_null(self, arr_name):
+        return arr_name + " != 0"
+
     def constr_hu_array(self, ty_info, arr_len):
         base_ty = ty_info.subty.java_hu_ty.split("[")[0].split("<")[0]
         conv = "new " + base_ty + "[" + arr_len + "]"

gen_type_mapping.py

@@ -194,7 +194,7 @@ def _do_map_type_with_info(self, ty_info, print_void, ret_arr_len, is_free, hold
                     to_hu_conv += ";\n"
                     pfx = ""
                     if is_nullable:
-                        to_hu_conv += "if (" + arr_name + " != null) {\n"
+                        to_hu_conv += "if (" + self.consts.check_c_arr_null(arr_name) + ") {\n"
                         pfx = "\t"
                     to_hu_conv += pfx + self.consts.for_n_in_range(idxc, "0", conv_name + "_len") + "\n"
 

java_strings.py

@@ -786,6 +786,8 @@ def get_java_arr_len(self, arr_name):
         return arr_name + ".length"
     def get_java_arr_elem(self, elem_ty, arr_name, idx):
         return arr_name + "[" + idx + "]"
+    def check_c_arr_null(self, arr_name):
+        return arr_name + " != null"
     def constr_hu_array(self, ty_info, arr_len):
         base_ty = ty_info.subty.java_hu_ty.split("[")[0].split("<")[0]
         conv = "new " + base_ty + "[" + arr_len + "]"

typescript_strings.py

@@ -858,6 +858,8 @@ def get_java_arr_elem(self, elem_ty, arr_name, idx):
             return "bindings.getU32ArrayElem(" + arr_name + ", " + idx + ")"
         else:
             assert False
+    def check_c_arr_null(self, arr_name):
+        return arr_name + " != 0"
     def constr_hu_array(self, ty_info, arr_len):
         return "new Array(" + arr_len + ").fill(null)"
     def cleanup_converted_native_array(self, ty_info, arr_name):