81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
//===-- CommandObjectDWIMPrint.cpp ------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "CommandObjectDWIMPrint.h"
|
|
|
|
#include "lldb/Core/ValueObject.h"
|
|
#include "lldb/Interpreter/CommandInterpreter.h"
|
|
#include "lldb/Interpreter/CommandObject.h"
|
|
#include "lldb/Interpreter/CommandReturnObject.h"
|
|
#include "lldb/Target/StackFrame.h"
|
|
#include "lldb/Utility/ConstString.h"
|
|
#include "lldb/lldb-enumerations.h"
|
|
#include "lldb/lldb-forward.h"
|
|
|
|
using namespace llvm;
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
CommandObjectDWIMPrint::CommandObjectDWIMPrint(CommandInterpreter &interpreter)
|
|
: CommandObjectRaw(interpreter, "dwim-print",
|
|
"Print a variable or expression.",
|
|
"dwim-print [<variable-name> | <expression>]",
|
|
eCommandProcessMustBePaused | eCommandTryTargetAPILock) {
|
|
}
|
|
|
|
bool CommandObjectDWIMPrint::DoExecute(StringRef expr,
|
|
CommandReturnObject &result) {
|
|
// Ignore leading and trailing whitespace.
|
|
expr = expr.trim();
|
|
|
|
if (expr.empty()) {
|
|
result.AppendErrorWithFormatv("'{0}' takes a variable or expression",
|
|
m_cmd_name);
|
|
return false;
|
|
}
|
|
|
|
auto verbosity = GetDebugger().GetDWIMPrintVerbosity();
|
|
|
|
// First, try `expr` as the name of a frame variable.
|
|
if (StackFrame *frame = m_exe_ctx.GetFramePtr()) {
|
|
auto valobj_sp = frame->FindVariable(ConstString(expr));
|
|
if (valobj_sp && valobj_sp->GetError().Success()) {
|
|
if (verbosity == eDWIMPrintVerbosityFull)
|
|
result.AppendMessageWithFormatv("note: ran `frame variable {0}`", expr);
|
|
valobj_sp->Dump(result.GetOutputStream());
|
|
result.SetStatus(eReturnStatusSuccessFinishResult);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// Second, also lastly, try `expr` as a source expression to evaluate.
|
|
{
|
|
Target *target_ptr = m_exe_ctx.GetTargetPtr();
|
|
// Fallback to the dummy target, which can allow for expression evaluation.
|
|
Target &target = target_ptr ? *target_ptr : GetDummyTarget();
|
|
|
|
auto *exe_scope = m_exe_ctx.GetBestExecutionContextScope();
|
|
ValueObjectSP valobj_sp;
|
|
if (target.EvaluateExpression(expr, exe_scope, valobj_sp) ==
|
|
eExpressionCompleted) {
|
|
if (verbosity != eDWIMPrintVerbosityNone)
|
|
result.AppendMessageWithFormatv("note: ran `expression -- {0}`", expr);
|
|
valobj_sp->Dump(result.GetOutputStream());
|
|
result.SetStatus(eReturnStatusSuccessFinishResult);
|
|
return true;
|
|
} else {
|
|
if (valobj_sp)
|
|
result.SetError(valobj_sp->GetError());
|
|
else
|
|
result.AppendErrorWithFormatv(
|
|
"unknown error evaluating expression `{0}`", expr);
|
|
return false;
|
|
}
|
|
}
|
|
}
|