Files
acceptance-tests
data
debian
docs
external
Newtonsoft.Json
api-doc-tools
api-snapshot
aspnetwebstack
bdwgc
binary-reference-assemblies
bockbuild
boringssl
cecil
cecil-legacy
corefx
corert
helix-binaries
ikdasm
ikvm
illinker-test-assets
linker
llvm-project
clang
clang-tools-extra
compiler-rt
eng
libcxx
libcxxabi
libunwind
lld
lldb
cmake
docs
examples
include
lit
lldb.xcodeproj
lldb.xcworkspace
packages
resources
scripts
source
API
Breakpoint
Commands
Core
DataFormatters
Expression
Host
Initialization
Interpreter
Args.cpp
CMakeLists.txt
CommandAlias.cpp
CommandHistory.cpp
CommandInterpreter.cpp.REMOVED.git-id
CommandObject.cpp
CommandObjectRegexCommand.cpp
CommandObjectScript.cpp
CommandObjectScript.h
CommandOptionValidators.cpp
CommandReturnObject.cpp
OptionGroupArchitecture.cpp
OptionGroupBoolean.cpp
OptionGroupFile.cpp
OptionGroupFormat.cpp
OptionGroupOutputFile.cpp
OptionGroupPlatform.cpp
OptionGroupString.cpp
OptionGroupUInt64.cpp
OptionGroupUUID.cpp
OptionGroupValueObjectDisplay.cpp
OptionGroupVariable.cpp
OptionGroupWatchpoint.cpp
OptionValue.cpp
OptionValueArch.cpp
OptionValueArgs.cpp
OptionValueArray.cpp
OptionValueBoolean.cpp
OptionValueChar.cpp
OptionValueDictionary.cpp
OptionValueEnumeration.cpp
OptionValueFileSpec.cpp
OptionValueFileSpecLIst.cpp
OptionValueFormat.cpp
OptionValueFormatEntity.cpp
OptionValueLanguage.cpp
OptionValuePathMappings.cpp
OptionValueProperties.cpp
OptionValueRegex.cpp
OptionValueSInt64.cpp
OptionValueString.cpp
OptionValueUInt64.cpp
OptionValueUUID.cpp
Options.cpp
Property.cpp
ScriptInterpreter.cpp
embedded_interpreter.py
Plugins
Symbol
Target
Utility
CMakeLists.txt
lldb.cpp
third_party
tools
unittests
utils
www
.arcconfig
.clang-format
.gitignore
CMakeLists.txt
CODE_OWNERS.txt
INSTALL.txt
LICENSE.TXT
use_lldb_suite_root.py
llvm
nuget
openmp
polly
Directory.Build.props
Directory.Build.targets
NuGet.config
azure-pipelines.yml
build.cmd
build.sh
dir.common.props
global.json
llvm.proj
mxe-Win64.cmake.in
nuget-buildtasks
nunit-lite
roslyn-binaries
rx
xunit-binaries
how-to-bump-roslyn-binaries.md
ikvm-native
llvm
m4
man
mcs
mono
msvc
netcore
po
runtime
samples
scripts
support
tools
COPYING.LIB
LICENSE
Makefile.am
Makefile.in
NEWS
README.md
acinclude.m4
aclocal.m4
autogen.sh
code_of_conduct.md
compile
config.guess
config.h.in
config.rpath
config.sub
configure.REMOVED.git-id
configure.ac.REMOVED.git-id
depcomp
install-sh
ltmain.sh.REMOVED.git-id
missing
mkinstalldirs
mono-uninstalled.pc.in
test-driver
winconfig.h
linux-packaging-mono/external/llvm-project/lldb/source/Interpreter/CommandHistory.cpp

111 lines
3.0 KiB
C++
Raw Normal View History

//===-- CommandHistory.cpp --------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <inttypes.h>
#include "lldb/Interpreter/CommandHistory.h"
using namespace lldb;
using namespace lldb_private;
CommandHistory::CommandHistory() : m_mutex(), m_history() {}
CommandHistory::~CommandHistory() {}
size_t CommandHistory::GetSize() const {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
return m_history.size();
}
bool CommandHistory::IsEmpty() const {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
return m_history.empty();
}
llvm::Optional<llvm::StringRef>
CommandHistory::FindString(llvm::StringRef input_str) const {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
if (input_str.size() < 2)
return llvm::None;
if (input_str[0] != g_repeat_char)
return llvm::None;
if (input_str[1] == g_repeat_char) {
if (m_history.empty())
return llvm::None;
return llvm::StringRef(m_history.back());
}
input_str = input_str.drop_front();
size_t idx = 0;
if (input_str.front() == '-') {
if (input_str.drop_front(1).getAsInteger(0, idx))
return llvm::None;
if (idx >= m_history.size())
return llvm::None;
idx = m_history.size() - idx;
} else {
if (input_str.getAsInteger(0, idx))
return llvm::None;
if (idx >= m_history.size())
return llvm::None;
}
return llvm::StringRef(m_history[idx]);
}
llvm::StringRef CommandHistory::GetStringAtIndex(size_t idx) const {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
if (idx < m_history.size())
return m_history[idx];
return "";
}
llvm::StringRef CommandHistory::operator[](size_t idx) const {
return GetStringAtIndex(idx);
}
llvm::StringRef CommandHistory::GetRecentmostString() const {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
if (m_history.empty())
return "";
return m_history.back();
}
void CommandHistory::AppendString(llvm::StringRef str, bool reject_if_dupe) {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
if (reject_if_dupe) {
if (!m_history.empty()) {
if (str == m_history.back())
return;
}
}
m_history.push_back(str);
}
void CommandHistory::Clear() {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
m_history.clear();
}
void CommandHistory::Dump(Stream &stream, size_t start_idx,
size_t stop_idx) const {
std::lock_guard<std::recursive_mutex> guard(m_mutex);
stop_idx = std::min(stop_idx + 1, m_history.size());
for (size_t counter = start_idx; counter < stop_idx; counter++) {
const std::string hist_item = m_history[counter];
if (!hist_item.empty()) {
stream.Indent();
stream.Printf("%4" PRIu64 ": %s\n", (uint64_t)counter, hist_item.c_str());
}
}
}