[Lldb-commits] [lldb] [lldb] Change the implementation of Status to store an llvm::Error (NFC) (PR #106774)

[Jonas Devlieghere via lldb-commits]

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@@ -37,49 +39,75 @@ class raw_ostream;
 using namespace lldb;
 using namespace lldb_private;
 
-Status::Status() {}
+char MachKernelError::ID;
+char Win32Error::ID;
+char ExpressionError::ID;
+
+namespace {
+/// A std::error_code category for eErrorTypeGeneric.
+class GenericCategory : public std::error_category {
+  const char *name() const override { return "LLDBGenericCategory"; }
+  std::string message(int __ev) const override { return "generic LLDB error"; };
+};
+GenericCategory &generic_category() {
+  static GenericCategory g_generic_category;
+  return g_generic_category;
+}
+
+/// A std::error_code category for eErrorTypeExpression.
+class ExpressionCategory : public std::error_category {
+  const char *name() const override { return "LLDBExpressionCategory"; }
+  std::string message(int __ev) const override {
+    return ExecutionResultAsCString(static_cast<lldb::ExpressionResults>(__ev));
+  };
+};
+ExpressionCategory &expression_category() {
+  static ExpressionCategory g_expression_category;
+  return g_expression_category;
+}
+} // namespace
+
+Status::Status() : m_error(llvm::Error::success()) {}
 
 Status::Status(ValueType err, ErrorType type, std::string msg)
-    : m_code(err), m_type(type), m_string(std::move(msg)) {}
+    : m_error(
+          type == eErrorTypeMachKernel
+              ? llvm::make_error<MachKernelError>(
+                    std::error_code(err, std::system_category()), msg)
+              : (type == eErrorTypePOSIX
+                     ? llvm::errorCodeToError(
+                           std::error_code(err, std::generic_category()))
+                     : (type == eErrorTypeWin32
+                            ? llvm::make_error<Win32Error>(
+                                  std::error_code(err, std::system_category()),
+                                  msg)
+                            : llvm::createStringError(
+                                  std::move(msg),
+                                  std::error_code(err, generic_category()))))) {
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JDevlieghere wrote:

lol

https://github.com/llvm/llvm-project/pull/106774