diff options
| -rw-r--r-- | CMakeLists.txt | 3 | ||||
| -rw-r--r-- | MCServer/Plugins/Debuggers/Debuggers.lua | 28 | ||||
| -rw-r--r-- | src/Bindings/LuaState.cpp | 13 | ||||
| -rw-r--r-- | src/Bindings/ManualBindings.cpp | 5 |
4 files changed, 22 insertions, 27 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 76b91e642..2bb780eba 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -78,6 +78,9 @@ endif() # The Expat library is linked in statically, make the source files aware of that: add_definitions(-DXML_STATIC) +# Let Lua use additional checks on its C API. This is only compiled into Debug builds: +add_definitions(-DLUA_USE_APICHECK) + # Self Test Mode enables extra checks at startup if(${SELF_TEST}) add_definitions(-DSELF_TEST) diff --git a/MCServer/Plugins/Debuggers/Debuggers.lua b/MCServer/Plugins/Debuggers/Debuggers.lua index bffc6e844..a49f8b5a6 100644 --- a/MCServer/Plugins/Debuggers/Debuggers.lua +++ b/MCServer/Plugins/Debuggers/Debuggers.lua @@ -54,7 +54,7 @@ function Initialize(a_Plugin) -- TestBlockAreas() -- TestSQLiteBindings() -- TestExpatBindings() - -- TestPluginCalls() + TestPluginCalls() TestBlockAreasString() TestStringBase64() @@ -157,26 +157,18 @@ function TestPluginCalls() -- The Split parameter should be a table, but it is not used in that function anyway, -- so we can get away with passing nil to it. - -- Use the old, deprecated and unsafe method: - local Core = cPluginManager:Get():GetPlugin("Core") - if (Core ~= nil) then - LOGINFO("Calling Core::ReturnColorFromChar() the old-fashioned way...") - local Gray = Core:Call("ReturnColorFromChar", nil, "8") - if (Gray ~= cChatColor.Gray) then - LOGWARNING("Call failed, exp " .. cChatColor.Gray .. ", got " .. (Gray or "<nil>")) - else - LOGINFO("Call succeeded") - end - end - - -- Use the new method: - LOGINFO("Calling Core::ReturnColorFromChar() the recommended way...") - local Gray = cPluginManager:CallPlugin("Core", "ReturnColorFromChar", nil, "8") + LOG("Debuggers: Calling NoSuchPlugin.FnName()...") + cPluginManager:CallPlugin("NoSuchPlugin", "FnName", "SomeParam") + LOG("Debuggers: Calling Core.NoSuchFunction()...") + cPluginManager:CallPlugin("Core", "NoSuchFunction", "SomeParam") + LOG("Debuggers: Calling Core.ReturnColorFromChar(..., \"8\")...") + local Gray = cPluginManager:CallPlugin("Core", "ReturnColorFromChar", "split", "8") if (Gray ~= cChatColor.Gray) then - LOGWARNING("Call failed, exp " .. cChatColor.Gray .. ", got " .. (Gray or "<nil>")) + LOGWARNING("Debuggers: Call failed, exp " .. cChatColor.Gray .. ", got " .. (Gray or "<nil>")) else - LOGINFO("Call succeeded") + LOG("Debuggers: Call succeeded") end + LOG("Debuggers: Inter-plugin calls done.") end diff --git a/src/Bindings/LuaState.cpp b/src/Bindings/LuaState.cpp index f574dbe26..9c1e2865c 100644 --- a/src/Bindings/LuaState.cpp +++ b/src/Bindings/LuaState.cpp @@ -1535,7 +1535,7 @@ int cLuaState::CallFunctionWithForeignParams( if (!PushFunction(a_FunctionName.c_str())) { LOGWARNING("Function '%s' not found", a_FunctionName.c_str()); - lua_pop(m_LuaState, 2); + lua_settop(m_LuaState, OldTop); return -1; } @@ -1543,7 +1543,7 @@ int cLuaState::CallFunctionWithForeignParams( if (CopyStackFrom(a_SrcLuaState, a_SrcParamStart, a_SrcParamEnd) < 0) { // Something went wrong, fix the stack and exit - lua_pop(m_LuaState, 2); + lua_settop(m_LuaState, OldTop); m_NumCurrentFunctionArgs = -1; m_CurrentFunctionName.clear(); return -1; @@ -1554,13 +1554,8 @@ int cLuaState::CallFunctionWithForeignParams( if (ReportErrors(s)) { LOGWARN("Error while calling function '%s' in '%s'", a_FunctionName.c_str(), m_SubsystemName.c_str()); - // Fix the stack. - // We don't know how many values have been pushed, so just get rid of any that weren't there initially - int CurTop = lua_gettop(m_LuaState); - if (CurTop > OldTop) - { - lua_pop(m_LuaState, CurTop - OldTop); - } + // Reset the stack: + lua_settop(m_LuaState, OldTop); // Reset the internal checking mechanisms: m_NumCurrentFunctionArgs = -1; diff --git a/src/Bindings/ManualBindings.cpp b/src/Bindings/ManualBindings.cpp index 2fbff11d3..20042a780 100644 --- a/src/Bindings/ManualBindings.cpp +++ b/src/Bindings/ManualBindings.cpp @@ -1988,6 +1988,11 @@ static int tolua_cPluginManager_CallPlugin(lua_State * tolua_S) { return 0; } + if (Callback.m_NumReturns < 0) + { + // The call has failed, there are zero return values. Do NOT return negative number (Lua considers that a "yield") + return 0; + } return Callback.m_NumReturns; } |