[Lldb-commits] [PATCH] D70830: [LLDB] Disable MSVC warning C4190

[Alexandre Ganea via Phabricator via lldb-commits]

aganea created this revision.
aganea added reviewers: JDevlieghere, lawrence_danna.
Herald added a project: LLDB.
Herald added a subscriber: lldb-commits.

Before this patch, when compiling with MSVC 15.9.17 (latest), we would see:

  
F:\llvm-project\lldb\source\Plugins\ScriptInterpreter\Python\ScriptInterpreterPython.cpp(83):
 warning C4190: 'LLDBSwigPythonBreakpointCallbackFunction' has C-linkage 
specified, but returns UDT 'llvm::Expected<bool>' which is incompatible with C


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70830

Files:
  lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp


Index: lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
===================================================================
--- lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -77,11 +77,23 @@
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wreturn-type-c-linkage"
 
+// Disable warning C4190: 'LLDBSwigPythonBreakpointCallbackFunction' has
+// C-linkage specified, but returns UDT 'llvm::Expected<bool>' which is
+// incompatible with C
+#if _MSC_VER
+#pragma warning (push)
+#pragma warning (disable : 4190)
+#endif
+
 extern "C" llvm::Expected<bool> LLDBSwigPythonBreakpointCallbackFunction(
     const char *python_function_name, const char *session_dictionary_name,
     const lldb::StackFrameSP &sb_frame,
     const lldb::BreakpointLocationSP &sb_bp_loc, StructuredDataImpl 
*args_impl);
 
+#if _MSC_VER
+#pragma warning (pop)
+#endif
+
 #pragma clang diagnostic pop
 
 extern "C" bool LLDBSwigPythonWatchpointCallbackFunction(



Index: lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
===================================================================
--- lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -77,11 +77,23 @@
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wreturn-type-c-linkage"
 
+// Disable warning C4190: 'LLDBSwigPythonBreakpointCallbackFunction' has
+// C-linkage specified, but returns UDT 'llvm::Expected<bool>' which is
+// incompatible with C
+#if _MSC_VER
+#pragma warning (push)
+#pragma warning (disable : 4190)
+#endif
+
 extern "C" llvm::Expected<bool> LLDBSwigPythonBreakpointCallbackFunction(
     const char *python_function_name, const char *session_dictionary_name,
     const lldb::StackFrameSP &sb_frame,
     const lldb::BreakpointLocationSP &sb_bp_loc, StructuredDataImpl *args_impl);
 
+#if _MSC_VER
+#pragma warning (pop)
+#endif
+
 #pragma clang diagnostic pop
 
 extern "C" bool LLDBSwigPythonWatchpointCallbackFunction(

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