1 files changed, 16 insertions, 0 deletions

diff --git a/lstate.c b/lstate.c
index d4bc53eb..86cd5fb8 100644
--- a/lstate.c
+++ b/lstate.c
@@ -443,3 +443,19 @@ void luaE_warning (lua_State *L, const char *msg, int tocont) {
 }
 
 
+/*
+** Generate a warning from an error message
+*/
+void luaE_warnerror (lua_State *L, const char *where) {
+  TValue *errobj = s2v(L->top - 1);  /* error object */
+  const char *msg = (ttisstring(errobj))
+                  ? svalue(errobj)
+                  : "error object is not a string";
+  /* produce warning "error in %s (%s)" (where, msg) */
+  luaE_warning(L, "error in ", 1);
+  luaE_warning(L, where, 1);
+  luaE_warning(L, " (", 1);
+  luaE_warning(L, msg, 1);
+  luaE_warning(L, ")", 0);
+}
+