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-rw-r--r--src/Bindings/LuaState.cpp28
-rw-r--r--src/Bindings/LuaState.h2
2 files changed, 27 insertions, 3 deletions
diff --git a/src/Bindings/LuaState.cpp b/src/Bindings/LuaState.cpp
index 1dd2b4dd8..149c304ed 100644
--- a/src/Bindings/LuaState.cpp
+++ b/src/Bindings/LuaState.cpp
@@ -228,6 +228,9 @@ bool cLuaState::PushFunction(const char * a_FunctionName)
return false;
}
+ // Push the error handler for lua_pcall()
+ lua_pushcfunction(m_LuaState, &ReportFnCallErrors);
+
lua_getglobal(m_LuaState, a_FunctionName);
if (!lua_isfunction(m_LuaState, -1))
{
@@ -249,6 +252,9 @@ bool cLuaState::PushFunction(int a_FnRef)
ASSERT(IsValid());
ASSERT(m_NumCurrentFunctionArgs == -1); // If not, there's already something pushed onto the stack
+ // Push the error handler for lua_pcall()
+ lua_pushcfunction(m_LuaState, &ReportFnCallErrors);
+
lua_rawgeti(m_LuaState, LUA_REGISTRYINDEX, a_FnRef); // same as lua_getref()
if (!lua_isfunction(m_LuaState, -1))
{
@@ -269,6 +275,9 @@ bool cLuaState::PushFunction(const cTableRef & a_TableRef)
ASSERT(IsValid());
ASSERT(m_NumCurrentFunctionArgs == -1); // If not, there's already something pushed onto the stack
+ // Push the error handler for lua_pcall()
+ lua_pushcfunction(m_LuaState, &ReportFnCallErrors);
+
lua_rawgeti(m_LuaState, LUA_REGISTRYINDEX, a_TableRef.GetTableRef()); // Get the table ref
if (!lua_istable(m_LuaState, -1))
{
@@ -731,11 +740,13 @@ void cLuaState::GetReturn(int a_StackPos, double & a_ReturnedVal)
bool cLuaState::CallFunction(int a_NumResults)
{
ASSERT (m_NumCurrentFunctionArgs >= 0); // A function must be pushed to stack first
- ASSERT(lua_isfunction(m_LuaState, -m_NumCurrentFunctionArgs - 1));
+ ASSERT(lua_isfunction(m_LuaState, -m_NumCurrentFunctionArgs - 1)); // The function to call
+ ASSERT(lua_isfunction(m_LuaState, -m_NumCurrentFunctionArgs - 2)); // The error handler
- int s = lua_pcall(m_LuaState, m_NumCurrentFunctionArgs, a_NumResults, 0);
- if (ReportErrors(s))
+ int s = lua_pcall(m_LuaState, m_NumCurrentFunctionArgs, a_NumResults, -m_NumCurrentFunctionArgs - 2);
+ if (s != 0)
{
+ // The error has already been printed together with the stacktrace
LOGWARNING("Error in %s calling function %s()", m_SubsystemName.c_str(), m_CurrentFunctionName.c_str());
m_NumCurrentFunctionArgs = -1;
m_CurrentFunctionName.clear();
@@ -1013,6 +1024,17 @@ AString cLuaState::GetTypeText(int a_StackPos)
+int cLuaState::ReportFnCallErrors(lua_State * a_LuaState)
+{
+ LOGWARNING("LUA: %s", lua_tostring(a_LuaState, -1));
+ LogStackTrace(a_LuaState);
+ return 1; // We left the error message on the stack as the return value
+}
+
+
+
+
+
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cLuaState::cRef:
diff --git a/src/Bindings/LuaState.h b/src/Bindings/LuaState.h
index c77dbeb7f..a43d39732 100644
--- a/src/Bindings/LuaState.h
+++ b/src/Bindings/LuaState.h
@@ -889,6 +889,8 @@ protected:
*/
bool CallFunction(int a_NumReturnValues);
+ /** Used as the error reporting function for function calls */
+ static int ReportFnCallErrors(lua_State * a_LuaState);
} ;