diff options
Diffstat (limited to 'lldb/source/Commands/CommandObjectExpression.cpp')
| -rw-r--r-- | lldb/source/Commands/CommandObjectExpression.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lldb/source/Commands/CommandObjectExpression.cpp b/lldb/source/Commands/CommandObjectExpression.cpp index 25a88449c52..431b3d4ff88 100644 --- a/lldb/source/Commands/CommandObjectExpression.cpp +++ b/lldb/source/Commands/CommandObjectExpression.cpp @@ -282,6 +282,18 @@ CommandObjectExpression::GetOptions () return &m_option_group; } +static lldb_private::Error +CanBeUsedForElementCountPrinting (ValueObject& valobj) +{ + CompilerType type(valobj.GetCompilerType()); + CompilerType pointee; + if (!type.IsPointerType(&pointee)) + return Error("as it does not refer to a pointer"); + if (pointee.IsVoidType()) + return Error("as it refers to a pointer to void"); + return Error(); +} + bool CommandObjectExpression::EvaluateExpression(const char *expr, Stream *output_stream, @@ -356,6 +368,17 @@ CommandObjectExpression::EvaluateExpression(const char *expr, if (format != eFormatDefault) result_valobj_sp->SetFormat (format); + if (m_varobj_options.elem_count > 0) + { + Error error(CanBeUsedForElementCountPrinting(*result_valobj_sp)); + if (error.Fail()) + { + result->AppendErrorWithFormat("expression cannot be used with --element-count %s\n", error.AsCString("")); + result->SetStatus(eReturnStatusFailed); + return false; + } + } + DumpValueObjectOptions options(m_varobj_options.GetAsDumpOptions(m_command_options.m_verbosity,format)); options.SetVariableFormatDisplayLanguage(result_valobj_sp->GetPreferredDisplayLanguage()); |
