Author: enrico
Date: Wed Oct 22 17:04:40 2014
New Revision: 220435
URL: http://llvm.org/viewvc/llvm-project?rev=220435&view=rev
Log:
Add a 'type info' command, which can be fed one or more local variables - and
it will spew out the list of formatters that apply to each of those variables,
if any
Modified:
lldb/trunk/source/Commands/CommandObjectType.cpp
Modified: lldb/trunk/source/Commands/CommandObjectType.cpp
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Commands/CommandObjectType.cpp?rev=220435&r1=220434&r2=220435&view=diff
==============================================================================
--- lldb/trunk/source/Commands/CommandObjectType.cpp (original)
+++ lldb/trunk/source/Commands/CommandObjectType.cpp Wed Oct 22 17:04:40 2014
@@ -31,6 +31,8 @@
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Interpreter/Options.h"
#include "lldb/Interpreter/OptionGroupFormat.h"
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Thread.h"
using namespace lldb;
using namespace lldb_private;
@@ -4231,6 +4233,120 @@ CommandObjectTypeFilterAdd::CommandOptio
{ 0, false, NULL, 0, 0, NULL, NULL, 0, eArgTypeNone, NULL }
};
+//-------------------------------------------------------------------------
+// CommandObjectTypeInfo
+//-------------------------------------------------------------------------
+
+class CommandObjectTypeInfo : public CommandObjectParsed
+{
+public:
+ CommandObjectTypeInfo (CommandInterpreter &interpreter) :
+ CommandObjectParsed (interpreter,
+ "type info",
+ "Discover formatters applied to a variable.",
+ NULL,
+ eFlagRequiresFrame |
+ eFlagTryTargetAPILock |
+ eFlagProcessMustBeLaunched |
+ eFlagProcessMustBePaused |
+ eFlagRequiresProcess)
+ {
+ CommandArgumentEntry type_arg;
+ CommandArgumentData type_style_arg;
+
+ type_style_arg.arg_type = eArgTypeName;
+ type_style_arg.arg_repetition = eArgRepeatPlus;
+
+ type_arg.push_back (type_style_arg);
+
+ m_arguments.push_back (type_arg);
+ }
+
+ ~CommandObjectTypeInfo ()
+ {
+ }
+
+protected:
+ bool
+ DoExecute (Args& command, CommandReturnObject &result)
+ {
+ const size_t argc = command.GetArgumentCount();
+
+ auto
frame_sp(m_interpreter.GetDebugger().GetSelectedTarget()->GetProcessSP()->GetThreadList().GetSelectedThread()->GetSelectedFrame());
+
+ for (size_t i = 0; i < argc; i++)
+ {
+ const char* varName = command.GetArgumentAtIndex(i);
+ if (!varName || 0 == varName[0])
+ continue;
+
+ VariableSP var_sp;
+ Error error;
+
+ ValueObjectSP
valobj_sp(frame_sp->GetValueForVariableExpressionPath(varName,
lldb::eDynamicDontRunTarget, 0, var_sp, error));
+ if (valobj_sp)
+ {
+ valobj_sp =
valobj_sp->GetQualifiedRepresentationIfAvailable(lldb::eDynamicDontRunTarget,
true);
+
+ auto format_sp(valobj_sp->GetValueFormat());
+ auto summary_sp(valobj_sp->GetSummaryFormat());
+ auto synth_sp(valobj_sp->GetSyntheticChildren());
+ auto validator_sp(valobj_sp->GetValidator());
+
+ if (format_sp)
+ {
+ result.GetOutputStream().Printf("Value %s has a custom
format: %s\n",
+ varName,
+
format_sp->GetDescription().c_str());
+ }
+ else
+ {
+ result.GetOutputStream().Printf("Value %s has no custom
format\n", varName);
+ }
+
+ if (summary_sp)
+ {
+ result.GetOutputStream().Printf("Value %s has a custom
summary: %s\n",
+ varName,
+
summary_sp->GetDescription().c_str());
+ }
+ else
+ {
+ result.GetOutputStream().Printf("Value %s has no custom
summary\n", varName);
+ }
+
+ if (synth_sp)
+ {
+ result.GetOutputStream().Printf("Value %s has a custom
synthetic provider: %s\n",
+ varName,
+
synth_sp->GetDescription().c_str());
+ }
+ else
+ {
+ result.GetOutputStream().Printf("Value %s has no custom
synthetic provider\n", varName);
+ }
+
+ if (validator_sp)
+ {
+ result.GetOutputStream().Printf("Value %s has a custom
validator: %s\n",
+ varName,
+
validator_sp->GetDescription().c_str());
+ }
+ else
+ {
+ result.GetOutputStream().Printf("Value %s has no custom
validator\n", varName);
+ }
+
+ }
+ else
+ result.AppendWarningWithFormat("Could not resolve '%s' to a
local variable\n", varName);
+ }
+
+ result.SetStatus(eReturnStatusSuccessFinishResult);
+ return result.Succeeded();
+ }
+};
+
class CommandObjectTypeFormat : public CommandObjectMultiword
{
public:
@@ -4351,6 +4467,7 @@ CommandObjectType::CommandObjectType (Co
"type [<sub-command-options>]")
{
LoadSubCommand ("category", CommandObjectSP (new
CommandObjectTypeCategory (interpreter)));
+ LoadSubCommand ("info", CommandObjectSP (new CommandObjectTypeInfo
(interpreter)));
LoadSubCommand ("filter", CommandObjectSP (new CommandObjectTypeFilter
(interpreter)));
LoadSubCommand ("format", CommandObjectSP (new CommandObjectTypeFormat
(interpreter)));
LoadSubCommand ("summary", CommandObjectSP (new CommandObjectTypeSummary
(interpreter)));
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