std::string quoteArg(llvm::StringRef arg) {
if (!needsQuotes(arg))
return arg;
std::string quotedArg;
quotedArg.reserve(3 + 2 * arg.size()); // worst case
quotedArg.push_back('"');
const size_t argLength = arg.size();
for (size_t i = 0; i < argLength; ++i) {
if (arg[i] == '"') {
// Escape all preceding backslashes (if any).
// Note that we *don't* need to escape runs of backslashes that don't
// precede a double quote! See MSDN:
// http://msdn.microsoft.com/en-us/library/17w5ykft%28v=vs.85%29.aspx
quotedArg.append(countPrecedingBackslashes(arg, i), '\\');
// Escape the double quote.
quotedArg.push_back('\\');
}
quotedArg.push_back(arg[i]);
}
// Make sure our final double quote doesn't get escaped by a trailing
// backslash.
quotedArg.append(countPrecedingBackslashes(arg, argLength), '\\');
quotedArg.push_back('"');
return quotedArg;
}
void
StringLiteral::setString(ASTContext &C, llvm::StringRef Str) {
char *AStrData = new (C, 1) char[Str.size()];
memcpy(AStrData, Str.data(), Str.size());
StrData = AStrData;
ByteLength = Str.size();
}
static bool writeFile(llvm::StringRef file_name, llvm::StringRef data) {
std::error_code error_code;
llvm::raw_fd_ostream file(file_name, error_code, llvm::sys::fs::F_RW);
if (error_code)
return false;
int uncompressed_size = data.size();
// Write the uncompressed size to the beginning of the file as a simple checksum.
// It looks like each lz4 block has its own data checksum, but we need to also
// make sure that we have all the blocks that we expected.
// In particular, without this, an empty file seems to be a valid lz4 stream.
file.write(reinterpret_cast<const char*>(&uncompressed_size), 4);
LZ4F_preferences_t preferences;
memset(&preferences, 0, sizeof(preferences));
preferences.frameInfo.contentChecksumFlag = contentChecksumEnabled;
preferences.frameInfo.contentSize = data.size();
std::vector<char> compressed;
size_t max_size = LZ4F_compressFrameBound(data.size(), &preferences);
compressed.resize(max_size);
size_t compressed_size = LZ4F_compressFrame(&compressed[0], max_size, data.data(), data.size(), &preferences);
if (LZ4F_isError(compressed_size))
return false;
file.write(compressed.data(), compressed_size);
return true;
}
std::size_t WireEncoder::GetStringSize(llvm::StringRef str) const {
if (m_proto_rev < 0x0300u) {
std::size_t len = str.size();
if (len > 0xffff) len = 0xffff; // Limited to 64K length; truncate
return 2 + len;
}
return SizeUleb128(str.size()) + str.size();
}
void PythonString::SetString(llvm::StringRef string) {
#if PY_MAJOR_VERSION >= 3
PyObject *unicode = PyUnicode_FromStringAndSize(string.data(), string.size());
PythonObject::Reset(PyRefType::Owned, unicode);
#else
PyObject *str = PyString_FromStringAndSize(string.data(), string.size());
PythonObject::Reset(PyRefType::Owned, str);
#endif
}
void ClangDocBitcodeWriter::emitRecord(llvm::StringRef Str, RecordId ID) {
assert(RecordIdNameMap[ID] && "Unknown RecordId.");
assert(RecordIdNameMap[ID].Abbrev == &StringAbbrev &&
"Abbrev type mismatch.");
if (!prepRecordData(ID, !Str.empty()))
return;
assert(Str.size() < (1U << BitCodeConstants::StringLengthSize));
Record.push_back(Str.size());
Stream.EmitRecordWithBlob(Abbrevs.get(ID), Record, Str);
}
static void EscapeBackticks(llvm::StringRef str, std::string &dst) {
dst.clear();
dst.reserve(str.size());
for (size_t i = 0, e = str.size(); i != e; ++i) {
char c = str[i];
if (c == '`') {
if (i == 0 || str[i - 1] != '\\')
dst += '\\';
}
dst += c;
}
}
InclusionDirective::InclusionDirective(PreprocessingRecord &PPRec,
InclusionKind Kind,
llvm::StringRef FileName,
bool InQuotes, const FileEntry *File,
SourceRange Range)
: PreprocessingDirective(InclusionDirectiveKind, Range),
InQuotes(InQuotes), Kind(Kind), File(File)
{
char *Memory
= (char*)PPRec.Allocate(FileName.size() + 1, llvm::alignOf<char>());
memcpy(Memory, FileName.data(), FileName.size());
Memory[FileName.size()] = 0;
this->FileName = llvm::StringRef(Memory, FileName.size());
}
static bool IsValidBasename(const llvm::StringRef &basename) {
// Check that the basename matches with the following regular expression or is
// an operator name:
// "^~?([A-Za-z_][A-Za-z_0-9]*)(<.*>)?$"
// We are using a hand written implementation because it is significantly more
// efficient then
// using the general purpose regular expression library.
size_t idx = 0;
if (basename.size() > 0 && basename[0] == '~')
idx = 1;
if (basename.size() <= idx)
return false; // Empty string or "~"
if (!std::isalpha(basename[idx]) && basename[idx] != '_')
return false; // First charater (after removing the possible '~'') isn't in
// [A-Za-z_]
// Read all characters matching [A-Za-z_0-9]
++idx;
while (idx < basename.size()) {
if (!std::isalnum(basename[idx]) && basename[idx] != '_')
break;
++idx;
}
// We processed all characters. It is a vaild basename.
if (idx == basename.size())
return true;
// Check for basename with template arguments
// TODO: Improve the quality of the validation with validating the template
// arguments
if (basename[idx] == '<' && basename.back() == '>')
return true;
// Check if the basename is a vaild C++ operator name
if (!basename.startswith("operator"))
return false;
static RegularExpression g_operator_regex(
llvm::StringRef("^(operator)( "
"?)([A-Za-z_][A-Za-z_0-9]*|\\(\\)|"
"\\[\\]|[\\^<>=!\\/"
"*+-]+)(<.*>)?(\\[\\])?$"));
std::string basename_str(basename.str());
return g_operator_regex.Execute(basename_str, nullptr);
}
void TemplightProtobufReader::loadDictionaryEntry(llvm::StringRef aSubBuffer) {
// Set default values:
std::string name = "";
llvm::SmallVector<std::size_t,8> markers;
while ( aSubBuffer.size() ) {
unsigned int cur_wire = llvm::protobuf::loadVarInt(aSubBuffer);
switch( cur_wire ) {
case llvm::protobuf::getStringWire<1>::value:
name = llvm::protobuf::loadString(aSubBuffer);
break;
case llvm::protobuf::getVarIntWire<2>::value:
markers.push_back(llvm::protobuf::loadVarInt(aSubBuffer));
break;
default:
llvm::protobuf::skipData(aSubBuffer, cur_wire);
break;
}
}
std::string::iterator it_name = std::find(name.begin(), name.end(), '\0');
llvm::SmallVector<std::size_t,8>::iterator it_mark = markers.begin();
while ( ( it_name != name.end() ) && ( it_mark != markers.end() ) ) {
std::size_t offset = it_name - name.begin();
name.replace(it_name, it_name + 1, templateNameMap[*it_mark]);
it_name = std::find(name.begin() + offset, name.end(), '\0');
++it_mark;
}
templateNameMap.push_back(name);
}
void TemplightProtobufReader::loadTemplateName(llvm::StringRef aSubBuffer) {
// Set default values:
LastBeginEntry.Name = "";
while ( aSubBuffer.size() ) {
unsigned int cur_wire = llvm::protobuf::loadVarInt(aSubBuffer);
switch( cur_wire ) {
case llvm::protobuf::getStringWire<1>::value:
LastBeginEntry.Name = llvm::protobuf::loadString(aSubBuffer);
break;
case llvm::protobuf::getStringWire<2>::value: {
LastBeginEntry.Name = llvm::protobuf::loadString(aSubBuffer);
llvm::SmallVector<char,32> UBuf;
if ( llvm::zlib::uncompress(LastBeginEntry.Name, UBuf, LastBeginEntry.Name.size() * 2)
== llvm::zlib::StatusOK )
LastBeginEntry.Name.assign(UBuf.begin(), UBuf.end());
else
LastBeginEntry.Name = "";
break;
}
case llvm::protobuf::getVarIntWire<3>::value: {
LastBeginEntry.Name = templateNameMap[llvm::protobuf::loadVarInt(aSubBuffer)];
break;
}
default:
llvm::protobuf::skipData(aSubBuffer, cur_wire);
break;
}
}
}
bool ReverseFindMatchingChars(const llvm::StringRef &s,
const llvm::StringRef &left_right_chars,
size_t &left_pos, size_t &right_pos,
size_t pos = llvm::StringRef::npos) {
assert(left_right_chars.size() == 2);
left_pos = llvm::StringRef::npos;
const char left_char = left_right_chars[0];
const char right_char = left_right_chars[1];
pos = s.find_last_of(left_right_chars, pos);
if (pos == llvm::StringRef::npos || s[pos] == left_char)
return false;
right_pos = pos;
uint32_t depth = 1;
while (pos > 0 && depth > 0) {
pos = s.find_last_of(left_right_chars, pos);
if (pos == llvm::StringRef::npos)
return false;
if (s[pos] == left_char) {
if (--depth == 0) {
left_pos = pos;
return left_pos < right_pos;
}
} else if (s[pos] == right_char) {
++depth;
}
}
return false;
}
size_t DiagnosticManager::PutString(DiagnosticSeverity severity,
llvm::StringRef str) {
if (str.empty())
return 0;
AddDiagnostic(str, severity, eDiagnosticOriginLLDB);
return str.size();
}
static inline void StripSpaces(llvm::StringRef &Str)
{
while (!Str.empty() && isspace(Str[0]))
Str = Str.substr(1);
while (!Str.empty() && isspace(Str.back()))
Str = Str.substr(0, Str.size()-1);
}
std::string Context::getThunkTarget(llvm::StringRef MangledName) {
if (!isThunkSymbol(MangledName))
return std::string();
if (isMangledName(MangledName)) {
// The targets of those thunks not derivable from the mangling.
if (MangledName.endswith("TR") ||
MangledName.endswith("Tr") ||
MangledName.endswith("TW") )
return std::string();
if (MangledName.endswith("fC")) {
std::string target = MangledName.str();
target[target.size() - 1] = 'c';
return target;
}
return MangledName.substr(0, MangledName.size() - 2).str();
}
// Old mangling.
assert(MangledName.startswith("_T"));
StringRef Remaining = MangledName.substr(2);
if (Remaining.startswith("PA_"))
return Remaining.substr(3).str();
if (Remaining.startswith("PAo_"))
return Remaining.substr(4).str();
assert(Remaining.startswith("To") || Remaining.startswith("TO"));
return std::string("_T") + Remaining.substr(2).str();
}
bool GDBRemoteClientBase::SendvContPacket(llvm::StringRef payload,
StringExtractorGDBRemote &response) {
Log *log(ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PROCESS));
if (log)
log->Printf("GDBRemoteCommunicationClient::%s ()", __FUNCTION__);
// we want to lock down packet sending while we continue
Lock lock(*this, true);
if (log)
log->Printf(
"GDBRemoteCommunicationClient::%s () sending vCont packet: %.*s",
__FUNCTION__, int(payload.size()), payload.data());
if (SendPacketNoLock(payload) != PacketResult::Success)
return false;
OnRunPacketSent(true);
// wait for the response to the vCont
if (ReadPacket(response, llvm::None, false) == PacketResult::Success) {
if (response.IsOKResponse())
return true;
}
return false;
}
/**
* Write raw bytes to the buffer.
*
* @param buffer StringRef to the buffer to read the bytes from.
* @return The number of bytes actually written into the port.
*/
int SerialPort::Write(llvm::StringRef buffer) {
int32_t status = 0;
int retVal = HAL_WriteSerial(static_cast<HAL_SerialPort>(m_port),
buffer.data(), buffer.size(), &status);
wpi_setErrorWithContext(status, HAL_GetErrorMessage(status));
return retVal;
}
GDBRemoteCommunication::PacketResult
GDBRemoteClientBase::SendPacketAndWaitForResponseNoLock(
llvm::StringRef payload, StringExtractorGDBRemote &response) {
PacketResult packet_result = SendPacketNoLock(payload);
if (packet_result != PacketResult::Success)
return packet_result;
const size_t max_response_retries = 3;
for (size_t i = 0; i < max_response_retries; ++i) {
packet_result = ReadPacket(response, GetPacketTimeout(), true);
// Make sure we received a response
if (packet_result != PacketResult::Success)
return packet_result;
// Make sure our response is valid for the payload that was sent
if (response.ValidateResponse())
return packet_result;
// Response says it wasn't valid
Log *log = ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PACKETS);
if (log)
log->Printf(
"error: packet with payload \"%.*s\" got invalid response \"%s\": %s",
int(payload.size()), payload.data(), response.GetStringRef().c_str(),
(i == (max_response_retries - 1))
? "using invalid response and giving up"
: "ignoring response and waiting for another");
}
return packet_result;
}
/// setDiagnosticGroupMapping - Change an entire diagnostic group (e.g.
/// "unknown-pragmas" to have the specified mapping. This returns true and
/// ignores the request if "Group" was unknown, false otherwise.
bool DiagnosticIDs::setDiagnosticGroupMapping(llvm::StringRef Group,
diag::Mapping Map,
SourceLocation Loc,
Diagnostic &Diag) const {
assert((Loc.isValid() ||
Diag.DiagStatePoints.empty() ||
Diag.DiagStatePoints.back().Loc.isInvalid()) &&
"Loc should be invalid only when the mapping comes from command-line");
assert((Loc.isInvalid() || Diag.DiagStatePoints.empty() ||
Diag.DiagStatePoints.back().Loc.isInvalid() ||
!Diag.SourceMgr->isBeforeInTranslationUnit(Loc,
Diag.DiagStatePoints.back().Loc)) &&
"Source location of new mapping is before the previous one!");
WarningOption Key = { Group.size(), Group.data(), 0, 0 };
const WarningOption *Found =
std::lower_bound(OptionTable, OptionTable + OptionTableSize, Key,
WarningOptionCompare);
if (Found == OptionTable + OptionTableSize ||
Found->getName() != Group)
return true; // Option not found.
MapGroupMembers(Found, Map, Loc, Diag);
return false;
}
// Compute the edit distance between the two given strings.
unsigned StringRef::edit_distance(llvm::StringRef Other,
bool AllowReplacements,
unsigned MaxEditDistance) {
return llvm::ComputeEditDistance(
llvm::ArrayRef<char>(data(), size()),
llvm::ArrayRef<char>(Other.data(), Other.size()),
AllowReplacements, MaxEditDistance);
}
// Compute the edit distance between the two given strings.
unsigned StringRef::edit_distance(llvm::StringRef Other,
bool AllowReplacements,
unsigned MaxEditDistance) const {
return llvm::ComputeEditDistance(
makeArrayRef(data(), size()),
makeArrayRef(Other.data(), Other.size()),
AllowReplacements, MaxEditDistance);
}
Type *vaListType() override {
// We need to pass the actual va_list type for correct mangling. Simply
// using TypeIdentifier here is a bit wonky but works, as long as the name
// is actually available in the scope (this is what DMD does, so if a better
// solution is found there, this should be adapted).
static const llvm::StringRef ident = "__va_list";
return (createTypeIdentifier(Loc(), Identifier::idPool(ident.data(), ident.size())));
}
/// HandleComment - Hook into the preprocessor and extract comments containing
/// expected errors and warnings.
bool VerifyDiagnosticConsumer::HandleComment(Lexer &PP, const SourceLocation& CommentBegin, const llvm::StringRef &C) {
const llvm::SourceMgr &SM = PP.getSourceManager();
// If this comment is for a different source manager, ignore it.
if (SrcManager && &SM != SrcManager)
return false;
if (C.empty())
return false;
// Fold any "\<EOL>" sequences
size_t loc = C.find('\\');
if (loc == StringRef::npos) {
ParseDirective(C, &ED, SM, &PP, CommentBegin, Status);
return false;
}
std::string C2;
C2.reserve(C.size());
for (size_t last = 0;; loc = C.find('\\', last)) {
if (loc == StringRef::npos || loc == C.size()) {
C2 += C.substr(last);
break;
}
C2 += C.substr(last, loc-last);
last = loc + 1;
if (C[last] == '\n' || C[last] == '\r') {
++last;
// Escape \r\n or \n\r, but not \n\n.
if (last < C.size())
if (C[last] == '\n' || C[last] == '\r')
if (C[last] != C[last-1])
++last;
} else {
// This was just a normal backslash.
C2 += '\\';
}
}
if (!C2.empty())
ParseDirective(C2, &ED, SM, &PP, CommentBegin, Status);
return false;
}
lldb::OptionValueSP
OptionValueArray::GetSubValue(const ExecutionContext *exe_ctx,
llvm::StringRef name, bool will_modify,
Status &error) const {
if (name.empty() || name.front() != '[') {
error.SetErrorStringWithFormat(
"invalid value path '%s', %s values only support '[<index>]' subvalues "
"where <index> is a positive or negative array index",
name.str().c_str(), GetTypeAsCString());
return nullptr;
}
name = name.drop_front();
llvm::StringRef index, sub_value;
std::tie(index, sub_value) = name.split(']');
if (index.size() == name.size()) {
// Couldn't find a closing bracket
return nullptr;
}
const size_t array_count = m_values.size();
int32_t idx = 0;
if (index.getAsInteger(0, idx))
return nullptr;
uint32_t new_idx = UINT32_MAX;
if (idx < 0) {
// Access from the end of the array if the index is negative
new_idx = array_count - idx;
} else {
// Just a standard index
new_idx = idx;
}
if (new_idx < array_count) {
if (m_values[new_idx]) {
if (!sub_value.empty())
return m_values[new_idx]->GetSubValue(exe_ctx, sub_value,
will_modify, error);
else
return m_values[new_idx];
}
} else {
if (array_count == 0)
error.SetErrorStringWithFormat(
"index %i is not valid for an empty array", idx);
else if (idx > 0)
error.SetErrorStringWithFormat(
"index %i out of range, valid values are 0 through %" PRIu64,
idx, (uint64_t)(array_count - 1));
else
error.SetErrorStringWithFormat("negative index %i out of range, "
"valid values are -1 through "
"-%" PRIu64,
idx, (uint64_t)array_count);
}
return OptionValueSP();
}
bool ConvertUTF8toWide(unsigned WideCharWidth, llvm::StringRef Source,
char *&ResultPtr, const UTF8 *&ErrorPtr) {
assert(WideCharWidth == 1 || WideCharWidth == 2 || WideCharWidth == 4);
ConversionResult result = conversionOK;
// Copy the character span over.
if (WideCharWidth == 1) {
const UTF8 *Pos = reinterpret_cast<const UTF8*>(Source.begin());
if (!isLegalUTF8String(&Pos, reinterpret_cast<const UTF8*>(Source.end()))) {
result = sourceIllegal;
ErrorPtr = Pos;
} else {
memcpy(ResultPtr, Source.data(), Source.size());
ResultPtr += Source.size();
}
} else if (WideCharWidth == 2) {
const UTF8 *sourceStart = (const UTF8*)Source.data();
// FIXME: Make the type of the result buffer correct instead of
// using reinterpret_cast.
UTF16 *targetStart = reinterpret_cast<UTF16*>(ResultPtr);
ConversionFlags flags = strictConversion;
result = ConvertUTF8toUTF16(
&sourceStart, sourceStart + Source.size(),
&targetStart, targetStart + Source.size(), flags);
if (result == conversionOK)
ResultPtr = reinterpret_cast<char*>(targetStart);
else
ErrorPtr = sourceStart;
} else if (WideCharWidth == 4) {
const UTF8 *sourceStart = (const UTF8*)Source.data();
// FIXME: Make the type of the result buffer correct instead of
// using reinterpret_cast.
UTF32 *targetStart = reinterpret_cast<UTF32*>(ResultPtr);
ConversionFlags flags = strictConversion;
result = ConvertUTF8toUTF32(
&sourceStart, sourceStart + Source.size(),
&targetStart, targetStart + Source.size(), flags);
if (result == conversionOK)
ResultPtr = reinterpret_cast<char*>(targetStart);
else
ErrorPtr = sourceStart;
}
assert((result != targetExhausted)
&& "ConvertUTF8toUTFXX exhausted target buffer");
return result == conversionOK;
}
MCLDDirectory::MCLDDirectory(llvm::StringRef pName)
: Directory(), m_Name(pName.data(), pName.size()) {
Directory::m_Path.assign(pName.str());
if (!Directory::m_Path.empty())
m_bInSysroot = ('=' == Directory::m_Path.native()[0]);
Directory::m_Path.m_append_separator_if_needed();
if (m_bInSysroot)
Directory::m_Path.native().erase(Directory::m_Path.native().begin());
else
detail::open_dir(*this);
}
int MetaProcessor::process(llvm::StringRef input_line,
Interpreter::CompilationResult& compRes,
Value* result,
bool disableValuePrinting /* = false */) {
if (result)
*result = Value();
compRes = Interpreter::kSuccess;
int expectedIndent = m_InputValidator->getExpectedIndent();
if (expectedIndent)
compRes = Interpreter::kMoreInputExpected;
if (input_line.empty() ||
(input_line.size() == 1 && input_line.front() == '\n')) {
// just a blank line, nothing to do.
return expectedIndent;
}
// Check for and handle meta commands.
m_MetaParser->enterNewInputLine(input_line);
MetaSema::ActionResult actionResult = MetaSema::AR_Success;
if (!m_InputValidator->inBlockComment() &&
m_MetaParser->isMetaCommand(actionResult, result)) {
if (m_MetaParser->isQuitRequested())
return -1;
if (actionResult != MetaSema::AR_Success)
compRes = Interpreter::kFailure;
// ExpectedIndent might have changed after meta command.
return m_InputValidator->getExpectedIndent();
}
// Check if the current statement is now complete. If not, return to
// prompt for more.
if (m_InputValidator->validate(input_line) == InputValidator::kIncomplete) {
compRes = Interpreter::kMoreInputExpected;
return m_InputValidator->getExpectedIndent();
}
// We have a complete statement, compile and execute it.
std::string input;
m_InputValidator->reset(&input);
// if (m_Options.RawInput)
// compResLocal = m_Interp.declare(input);
// else
compRes = m_Interp.process(input, result, /*Transaction*/ nullptr,
disableValuePrinting);
return 0;
}
void WireEncoder::WriteString(llvm::StringRef str) {
// length
std::size_t len = str.size();
if (m_proto_rev < 0x0300u) {
if (len > 0xffff) len = 0xffff; // Limited to 64K length; truncate
Write16(len);
} else
WriteUleb128(len);
// contents
Reserve(len);
std::memcpy(m_cur, str.data(), len);
m_cur += len;
}
static void mangleNameInPlace(InternedString& id, llvm::StringRef private_name, InternedStringPool& interned_strings) {
if (!private_name.size())
return;
int len = id.s().size();
if (len < 2 || id.s()[0] != '_' || id.s()[1] != '_')
return;
if ((id.s()[len - 2] == '_' && id.s()[len - 1] == '_') || id.s().find('.') != std::string::npos)
return;
assert(private_name.data()[private_name.size()] == '\0');
const char* p = private_name.data();
while (*p == '_') {
p++;
len--;
}
if (*p == '\0')
return;
// TODO add a twine interface to interned strings?
id = interned_strings.get("_" + std::string(p) + std::string(id.s()));
}
lldb::OptionValueSP
OptionValueDictionary::GetSubValue(const ExecutionContext *exe_ctx,
llvm::StringRef name, bool will_modify,
Status &error) const {
lldb::OptionValueSP value_sp;
if (name.empty())
return nullptr;
llvm::StringRef left, temp;
std::tie(left, temp) = name.split('[');
if (left.size() == name.size()) {
error.SetErrorStringWithFormat("invalid value path '%s', %s values only "
"support '[<key>]' subvalues where <key> "
"a string value optionally delimited by "
"single or double quotes",
name.str().c_str(), GetTypeAsCString());
return nullptr;
}
assert(!temp.empty());
llvm::StringRef key, quote_char;
if (temp[0] == '\"' || temp[0] == '\'') {
quote_char = temp.take_front();
temp = temp.drop_front();
}
llvm::StringRef sub_name;
std::tie(key, sub_name) = temp.split(']');
if (!key.consume_back(quote_char) || key.empty()) {
error.SetErrorStringWithFormat("invalid value path '%s', "
"key names must be formatted as ['<key>'] where <key> "
"is a string that doesn't contain quotes and the quote"
" char is optional", name.str().c_str());
return nullptr;
}
value_sp = GetValueForKey(ConstString(key));
if (!value_sp) {
error.SetErrorStringWithFormat(
"dictionary does not contain a value for the key name '%s'",
key.str().c_str());
return nullptr;
}
if (sub_name.empty())
return value_sp;
return value_sp->GetSubValue(exe_ctx, sub_name, will_modify, error);
}