Fix #263

source/m3_bind.c

@@ -131,6 +131,8 @@ M3Result  FindAndLinkFunction      (IM3Module       io_module,
 {
     M3Result result = m3Err_functionLookupFailed;
 
+    _throwif(m3Err_moduleNotLinked, !(io_module->runtime));
+
     bool wildcardModule = (strcmp (i_moduleName, "*") == 0);
 
     for (u32 i = 0; i < io_module->numFunctions; ++i)
@@ -151,7 +153,7 @@ M3Result  FindAndLinkFunction      (IM3Module       io_module,
             }
         }
     }
-
+_catch:
     return result;
 }
 

source/wasm3.h

@@ -138,6 +138,7 @@ d_m3ErrorConst  (tooManyMemorySections,         "only one memory per module is s
 d_m3ErrorConst  (tooManyArgsRets,               "too many arguments or return values")
 
 // link errors
+d_m3ErrorConst  (moduleNotLinked,               "attempting to use module that is not loaded")
 d_m3ErrorConst  (moduleAlreadyLinked,           "attempting to bind module to multiple runtimes")
 d_m3ErrorConst  (functionLookupFailed,          "function lookup failed")
 d_m3ErrorConst  (functionImportMissing,         "missing imported function")