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mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 19:23:23 +01:00
llvm-mirror/lib/Support/YAMLTraits.cpp
Chris Bieneman f9c29b59f6 [YAML] Fix YAML tags appearing before the start of sequence elements
Our existing yaml::Output code writes tags immediately when mapTag is called, without any state handling. This results in tags on sequence elements being written before the element itself. For example, we see this:

SomeArray:     !elem_type
  - key1:         1
    key2:         2 !elem_type2
  - key3:         3
    key4:         4

We should instead see:

SomeArray:
  - !elem_type
    key1:         1
    key2:         2
  - !elem_type2
    key3:         3
    key4:         4

Our reader handles reading properly, so this bug only impacts writing yaml sequences with tagged elements.

As a test for this I've modified the Mach-O yaml encoding to allways apply the !mach-o tag when encoding MachOYAML::Object entries. This results in the !mach-o tag appearing as expected in dumped fat files.

llvm-svn: 274067
2016-06-28 21:10:26 +00:00

994 lines
25 KiB
C++

//===- lib/Support/YAMLTraits.cpp -----------------------------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/YAMLTraits.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Errc.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/LineIterator.h"
#include "llvm/Support/YAMLParser.h"
#include "llvm/Support/raw_ostream.h"
#include <cctype>
#include <cstring>
using namespace llvm;
using namespace yaml;
//===----------------------------------------------------------------------===//
// IO
//===----------------------------------------------------------------------===//
IO::IO(void *Context) : Ctxt(Context) {
}
IO::~IO() {
}
void *IO::getContext() {
return Ctxt;
}
void IO::setContext(void *Context) {
Ctxt = Context;
}
//===----------------------------------------------------------------------===//
// Input
//===----------------------------------------------------------------------===//
Input::Input(StringRef InputContent,
void *Ctxt,
SourceMgr::DiagHandlerTy DiagHandler,
void *DiagHandlerCtxt)
: IO(Ctxt),
Strm(new Stream(InputContent, SrcMgr)),
CurrentNode(nullptr) {
if (DiagHandler)
SrcMgr.setDiagHandler(DiagHandler, DiagHandlerCtxt);
DocIterator = Strm->begin();
}
Input::~Input() {
}
std::error_code Input::error() { return EC; }
// Pin the vtables to this file.
void Input::HNode::anchor() {}
void Input::EmptyHNode::anchor() {}
void Input::ScalarHNode::anchor() {}
void Input::MapHNode::anchor() {}
void Input::SequenceHNode::anchor() {}
bool Input::outputting() {
return false;
}
bool Input::setCurrentDocument() {
if (DocIterator != Strm->end()) {
Node *N = DocIterator->getRoot();
if (!N) {
assert(Strm->failed() && "Root is NULL iff parsing failed");
EC = make_error_code(errc::invalid_argument);
return false;
}
if (isa<NullNode>(N)) {
// Empty files are allowed and ignored
++DocIterator;
return setCurrentDocument();
}
TopNode = this->createHNodes(N);
CurrentNode = TopNode.get();
return true;
}
return false;
}
bool Input::nextDocument() {
return ++DocIterator != Strm->end();
}
const Node *Input::getCurrentNode() const {
return CurrentNode ? CurrentNode->_node : nullptr;
}
bool Input::mapTag(StringRef Tag, bool Default) {
std::string foundTag = CurrentNode->_node->getVerbatimTag();
if (foundTag.empty()) {
// If no tag found and 'Tag' is the default, say it was found.
return Default;
}
// Return true iff found tag matches supplied tag.
return Tag.equals(foundTag);
}
void Input::beginMapping() {
if (EC)
return;
// CurrentNode can be null if the document is empty.
MapHNode *MN = dyn_cast_or_null<MapHNode>(CurrentNode);
if (MN) {
MN->ValidKeys.clear();
}
}
bool Input::preflightKey(const char *Key, bool Required, bool, bool &UseDefault,
void *&SaveInfo) {
UseDefault = false;
if (EC)
return false;
// CurrentNode is null for empty documents, which is an error in case required
// nodes are present.
if (!CurrentNode) {
if (Required)
EC = make_error_code(errc::invalid_argument);
return false;
}
MapHNode *MN = dyn_cast<MapHNode>(CurrentNode);
if (!MN) {
setError(CurrentNode, "not a mapping");
return false;
}
MN->ValidKeys.push_back(Key);
HNode *Value = MN->Mapping[Key].get();
if (!Value) {
if (Required)
setError(CurrentNode, Twine("missing required key '") + Key + "'");
else
UseDefault = true;
return false;
}
SaveInfo = CurrentNode;
CurrentNode = Value;
return true;
}
void Input::postflightKey(void *saveInfo) {
CurrentNode = reinterpret_cast<HNode *>(saveInfo);
}
void Input::endMapping() {
if (EC)
return;
// CurrentNode can be null if the document is empty.
MapHNode *MN = dyn_cast_or_null<MapHNode>(CurrentNode);
if (!MN)
return;
for (const auto &NN : MN->Mapping) {
if (!MN->isValidKey(NN.first())) {
setError(NN.second.get(), Twine("unknown key '") + NN.first() + "'");
break;
}
}
}
void Input::beginFlowMapping() { beginMapping(); }
void Input::endFlowMapping() { endMapping(); }
unsigned Input::beginSequence() {
if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode))
return SQ->Entries.size();
if (isa<EmptyHNode>(CurrentNode))
return 0;
// Treat case where there's a scalar "null" value as an empty sequence.
if (ScalarHNode *SN = dyn_cast<ScalarHNode>(CurrentNode)) {
if (isNull(SN->value()))
return 0;
}
// Any other type of HNode is an error.
setError(CurrentNode, "not a sequence");
return 0;
}
void Input::endSequence() {
}
bool Input::preflightElement(unsigned Index, void *&SaveInfo) {
if (EC)
return false;
if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
SaveInfo = CurrentNode;
CurrentNode = SQ->Entries[Index].get();
return true;
}
return false;
}
void Input::postflightElement(void *SaveInfo) {
CurrentNode = reinterpret_cast<HNode *>(SaveInfo);
}
unsigned Input::beginFlowSequence() { return beginSequence(); }
bool Input::preflightFlowElement(unsigned index, void *&SaveInfo) {
if (EC)
return false;
if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
SaveInfo = CurrentNode;
CurrentNode = SQ->Entries[index].get();
return true;
}
return false;
}
void Input::postflightFlowElement(void *SaveInfo) {
CurrentNode = reinterpret_cast<HNode *>(SaveInfo);
}
void Input::endFlowSequence() {
}
void Input::beginEnumScalar() {
ScalarMatchFound = false;
}
bool Input::matchEnumScalar(const char *Str, bool) {
if (ScalarMatchFound)
return false;
if (ScalarHNode *SN = dyn_cast<ScalarHNode>(CurrentNode)) {
if (SN->value().equals(Str)) {
ScalarMatchFound = true;
return true;
}
}
return false;
}
bool Input::matchEnumFallback() {
if (ScalarMatchFound)
return false;
ScalarMatchFound = true;
return true;
}
void Input::endEnumScalar() {
if (!ScalarMatchFound) {
setError(CurrentNode, "unknown enumerated scalar");
}
}
bool Input::beginBitSetScalar(bool &DoClear) {
BitValuesUsed.clear();
if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
BitValuesUsed.insert(BitValuesUsed.begin(), SQ->Entries.size(), false);
} else {
setError(CurrentNode, "expected sequence of bit values");
}
DoClear = true;
return true;
}
bool Input::bitSetMatch(const char *Str, bool) {
if (EC)
return false;
if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
unsigned Index = 0;
for (auto &N : SQ->Entries) {
if (ScalarHNode *SN = dyn_cast<ScalarHNode>(N.get())) {
if (SN->value().equals(Str)) {
BitValuesUsed[Index] = true;
return true;
}
} else {
setError(CurrentNode, "unexpected scalar in sequence of bit values");
}
++Index;
}
} else {
setError(CurrentNode, "expected sequence of bit values");
}
return false;
}
void Input::endBitSetScalar() {
if (EC)
return;
if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
assert(BitValuesUsed.size() == SQ->Entries.size());
for (unsigned i = 0; i < SQ->Entries.size(); ++i) {
if (!BitValuesUsed[i]) {
setError(SQ->Entries[i].get(), "unknown bit value");
return;
}
}
}
}
void Input::scalarString(StringRef &S, bool) {
if (ScalarHNode *SN = dyn_cast<ScalarHNode>(CurrentNode)) {
S = SN->value();
} else {
setError(CurrentNode, "unexpected scalar");
}
}
void Input::blockScalarString(StringRef &S) { scalarString(S, false); }
void Input::setError(HNode *hnode, const Twine &message) {
assert(hnode && "HNode must not be NULL");
this->setError(hnode->_node, message);
}
void Input::setError(Node *node, const Twine &message) {
Strm->printError(node, message);
EC = make_error_code(errc::invalid_argument);
}
std::unique_ptr<Input::HNode> Input::createHNodes(Node *N) {
SmallString<128> StringStorage;
if (ScalarNode *SN = dyn_cast<ScalarNode>(N)) {
StringRef KeyStr = SN->getValue(StringStorage);
if (!StringStorage.empty()) {
// Copy string to permanent storage
KeyStr = StringStorage.str().copy(StringAllocator);
}
return llvm::make_unique<ScalarHNode>(N, KeyStr);
} else if (BlockScalarNode *BSN = dyn_cast<BlockScalarNode>(N)) {
StringRef ValueCopy = BSN->getValue().copy(StringAllocator);
return llvm::make_unique<ScalarHNode>(N, ValueCopy);
} else if (SequenceNode *SQ = dyn_cast<SequenceNode>(N)) {
auto SQHNode = llvm::make_unique<SequenceHNode>(N);
for (Node &SN : *SQ) {
auto Entry = this->createHNodes(&SN);
if (EC)
break;
SQHNode->Entries.push_back(std::move(Entry));
}
return std::move(SQHNode);
} else if (MappingNode *Map = dyn_cast<MappingNode>(N)) {
auto mapHNode = llvm::make_unique<MapHNode>(N);
for (KeyValueNode &KVN : *Map) {
Node *KeyNode = KVN.getKey();
ScalarNode *KeyScalar = dyn_cast<ScalarNode>(KeyNode);
if (!KeyScalar) {
setError(KeyNode, "Map key must be a scalar");
break;
}
StringStorage.clear();
StringRef KeyStr = KeyScalar->getValue(StringStorage);
if (!StringStorage.empty()) {
// Copy string to permanent storage
KeyStr = StringStorage.str().copy(StringAllocator);
}
auto ValueHNode = this->createHNodes(KVN.getValue());
if (EC)
break;
mapHNode->Mapping[KeyStr] = std::move(ValueHNode);
}
return std::move(mapHNode);
} else if (isa<NullNode>(N)) {
return llvm::make_unique<EmptyHNode>(N);
} else {
setError(N, "unknown node kind");
return nullptr;
}
}
bool Input::MapHNode::isValidKey(StringRef Key) {
for (const char *K : ValidKeys) {
if (Key.equals(K))
return true;
}
return false;
}
void Input::setError(const Twine &Message) {
this->setError(CurrentNode, Message);
}
bool Input::canElideEmptySequence() {
return false;
}
//===----------------------------------------------------------------------===//
// Output
//===----------------------------------------------------------------------===//
Output::Output(raw_ostream &yout, void *context, int WrapColumn)
: IO(context),
Out(yout),
WrapColumn(WrapColumn),
Column(0),
ColumnAtFlowStart(0),
ColumnAtMapFlowStart(0),
NeedBitValueComma(false),
NeedFlowSequenceComma(false),
EnumerationMatchFound(false),
NeedsNewLine(false) {
}
Output::~Output() {
}
bool Output::outputting() {
return true;
}
void Output::beginMapping() {
StateStack.push_back(inMapFirstKey);
NeedsNewLine = true;
}
bool Output::mapTag(StringRef Tag, bool Use) {
if (Use) {
// If this tag is being written inside a sequence we should write the start
// of the sequence before writing the tag, otherwise the tag won't be
// attached to the element in the sequence, but rather the sequence itself.
bool SequenceElement =
StateStack.size() > 1 && (StateStack[StateStack.size() - 2] == inSeq ||
StateStack[StateStack.size() - 2] == inFlowSeq);
if (SequenceElement && StateStack.back() == inMapFirstKey) {
this->newLineCheck();
} else {
this->output(" ");
}
this->output(Tag);
if (SequenceElement) {
// If we're writing the tag during the first element of a map, the tag
// takes the place of the first element in the sequence.
if (StateStack.back() == inMapFirstKey) {
StateStack.pop_back();
StateStack.push_back(inMapOtherKey);
}
// Tags inside maps in sequences should act as keys in the map from a
// formatting perspective, so we always want a newline in a sequence.
NeedsNewLine = true;
}
}
return Use;
}
void Output::endMapping() {
StateStack.pop_back();
}
bool Output::preflightKey(const char *Key, bool Required, bool SameAsDefault,
bool &UseDefault, void *&) {
UseDefault = false;
if (Required || !SameAsDefault) {
auto State = StateStack.back();
if (State == inFlowMapFirstKey || State == inFlowMapOtherKey) {
flowKey(Key);
} else {
this->newLineCheck();
this->paddedKey(Key);
}
return true;
}
return false;
}
void Output::postflightKey(void *) {
if (StateStack.back() == inMapFirstKey) {
StateStack.pop_back();
StateStack.push_back(inMapOtherKey);
} else if (StateStack.back() == inFlowMapFirstKey) {
StateStack.pop_back();
StateStack.push_back(inFlowMapOtherKey);
}
}
void Output::beginFlowMapping() {
StateStack.push_back(inFlowMapFirstKey);
this->newLineCheck();
ColumnAtMapFlowStart = Column;
output("{ ");
}
void Output::endFlowMapping() {
StateStack.pop_back();
this->outputUpToEndOfLine(" }");
}
void Output::beginDocuments() {
this->outputUpToEndOfLine("---");
}
bool Output::preflightDocument(unsigned index) {
if (index > 0)
this->outputUpToEndOfLine("\n---");
return true;
}
void Output::postflightDocument() {
}
void Output::endDocuments() {
output("\n...\n");
}
unsigned Output::beginSequence() {
StateStack.push_back(inSeq);
NeedsNewLine = true;
return 0;
}
void Output::endSequence() {
StateStack.pop_back();
}
bool Output::preflightElement(unsigned, void *&) {
return true;
}
void Output::postflightElement(void *) {
}
unsigned Output::beginFlowSequence() {
StateStack.push_back(inFlowSeq);
this->newLineCheck();
ColumnAtFlowStart = Column;
output("[ ");
NeedFlowSequenceComma = false;
return 0;
}
void Output::endFlowSequence() {
StateStack.pop_back();
this->outputUpToEndOfLine(" ]");
}
bool Output::preflightFlowElement(unsigned, void *&) {
if (NeedFlowSequenceComma)
output(", ");
if (WrapColumn && Column > WrapColumn) {
output("\n");
for (int i = 0; i < ColumnAtFlowStart; ++i)
output(" ");
Column = ColumnAtFlowStart;
output(" ");
}
return true;
}
void Output::postflightFlowElement(void *) {
NeedFlowSequenceComma = true;
}
void Output::beginEnumScalar() {
EnumerationMatchFound = false;
}
bool Output::matchEnumScalar(const char *Str, bool Match) {
if (Match && !EnumerationMatchFound) {
this->newLineCheck();
this->outputUpToEndOfLine(Str);
EnumerationMatchFound = true;
}
return false;
}
bool Output::matchEnumFallback() {
if (EnumerationMatchFound)
return false;
EnumerationMatchFound = true;
return true;
}
void Output::endEnumScalar() {
if (!EnumerationMatchFound)
llvm_unreachable("bad runtime enum value");
}
bool Output::beginBitSetScalar(bool &DoClear) {
this->newLineCheck();
output("[ ");
NeedBitValueComma = false;
DoClear = false;
return true;
}
bool Output::bitSetMatch(const char *Str, bool Matches) {
if (Matches) {
if (NeedBitValueComma)
output(", ");
this->output(Str);
NeedBitValueComma = true;
}
return false;
}
void Output::endBitSetScalar() {
this->outputUpToEndOfLine(" ]");
}
void Output::scalarString(StringRef &S, bool MustQuote) {
this->newLineCheck();
if (S.empty()) {
// Print '' for the empty string because leaving the field empty is not
// allowed.
this->outputUpToEndOfLine("''");
return;
}
if (!MustQuote) {
// Only quote if we must.
this->outputUpToEndOfLine(S);
return;
}
unsigned i = 0;
unsigned j = 0;
unsigned End = S.size();
output("'"); // Starting single quote.
const char *Base = S.data();
while (j < End) {
// Escape a single quote by doubling it.
if (S[j] == '\'') {
output(StringRef(&Base[i], j - i + 1));
output("'");
i = j + 1;
}
++j;
}
output(StringRef(&Base[i], j - i));
this->outputUpToEndOfLine("'"); // Ending single quote.
}
void Output::blockScalarString(StringRef &S) {
if (!StateStack.empty())
newLineCheck();
output(" |");
outputNewLine();
unsigned Indent = StateStack.empty() ? 1 : StateStack.size();
auto Buffer = MemoryBuffer::getMemBuffer(S, "", false);
for (line_iterator Lines(*Buffer, false); !Lines.is_at_end(); ++Lines) {
for (unsigned I = 0; I < Indent; ++I) {
output(" ");
}
output(*Lines);
outputNewLine();
}
}
void Output::setError(const Twine &message) {
}
bool Output::canElideEmptySequence() {
// Normally, with an optional key/value where the value is an empty sequence,
// the whole key/value can be not written. But, that produces wrong yaml
// if the key/value is the only thing in the map and the map is used in
// a sequence. This detects if the this sequence is the first key/value
// in map that itself is embedded in a sequnce.
if (StateStack.size() < 2)
return true;
if (StateStack.back() != inMapFirstKey)
return true;
return (StateStack[StateStack.size()-2] != inSeq);
}
void Output::output(StringRef s) {
Column += s.size();
Out << s;
}
void Output::outputUpToEndOfLine(StringRef s) {
this->output(s);
if (StateStack.empty() || (StateStack.back() != inFlowSeq &&
StateStack.back() != inFlowMapFirstKey &&
StateStack.back() != inFlowMapOtherKey))
NeedsNewLine = true;
}
void Output::outputNewLine() {
Out << "\n";
Column = 0;
}
// if seq at top, indent as if map, then add "- "
// if seq in middle, use "- " if firstKey, else use " "
//
void Output::newLineCheck() {
if (!NeedsNewLine)
return;
NeedsNewLine = false;
this->outputNewLine();
assert(StateStack.size() > 0);
unsigned Indent = StateStack.size() - 1;
bool OutputDash = false;
if (StateStack.back() == inSeq) {
OutputDash = true;
} else if ((StateStack.size() > 1) && ((StateStack.back() == inMapFirstKey) ||
(StateStack.back() == inFlowSeq) ||
(StateStack.back() == inFlowMapFirstKey)) &&
(StateStack[StateStack.size() - 2] == inSeq)) {
--Indent;
OutputDash = true;
}
for (unsigned i = 0; i < Indent; ++i) {
output(" ");
}
if (OutputDash) {
output("- ");
}
}
void Output::paddedKey(StringRef key) {
output(key);
output(":");
const char *spaces = " ";
if (key.size() < strlen(spaces))
output(&spaces[key.size()]);
else
output(" ");
}
void Output::flowKey(StringRef Key) {
if (StateStack.back() == inFlowMapOtherKey)
output(", ");
if (WrapColumn && Column > WrapColumn) {
output("\n");
for (int I = 0; I < ColumnAtMapFlowStart; ++I)
output(" ");
Column = ColumnAtMapFlowStart;
output(" ");
}
output(Key);
output(": ");
}
//===----------------------------------------------------------------------===//
// traits for built-in types
//===----------------------------------------------------------------------===//
void ScalarTraits<bool>::output(const bool &Val, void *, raw_ostream &Out) {
Out << (Val ? "true" : "false");
}
StringRef ScalarTraits<bool>::input(StringRef Scalar, void *, bool &Val) {
if (Scalar.equals("true")) {
Val = true;
return StringRef();
} else if (Scalar.equals("false")) {
Val = false;
return StringRef();
}
return "invalid boolean";
}
void ScalarTraits<StringRef>::output(const StringRef &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<StringRef>::input(StringRef Scalar, void *,
StringRef &Val) {
Val = Scalar;
return StringRef();
}
void ScalarTraits<std::string>::output(const std::string &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<std::string>::input(StringRef Scalar, void *,
std::string &Val) {
Val = Scalar.str();
return StringRef();
}
void ScalarTraits<uint8_t>::output(const uint8_t &Val, void *,
raw_ostream &Out) {
// use temp uin32_t because ostream thinks uint8_t is a character
uint32_t Num = Val;
Out << Num;
}
StringRef ScalarTraits<uint8_t>::input(StringRef Scalar, void *, uint8_t &Val) {
unsigned long long n;
if (getAsUnsignedInteger(Scalar, 0, n))
return "invalid number";
if (n > 0xFF)
return "out of range number";
Val = n;
return StringRef();
}
void ScalarTraits<uint16_t>::output(const uint16_t &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<uint16_t>::input(StringRef Scalar, void *,
uint16_t &Val) {
unsigned long long n;
if (getAsUnsignedInteger(Scalar, 0, n))
return "invalid number";
if (n > 0xFFFF)
return "out of range number";
Val = n;
return StringRef();
}
void ScalarTraits<uint32_t>::output(const uint32_t &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<uint32_t>::input(StringRef Scalar, void *,
uint32_t &Val) {
unsigned long long n;
if (getAsUnsignedInteger(Scalar, 0, n))
return "invalid number";
if (n > 0xFFFFFFFFUL)
return "out of range number";
Val = n;
return StringRef();
}
void ScalarTraits<uint64_t>::output(const uint64_t &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<uint64_t>::input(StringRef Scalar, void *,
uint64_t &Val) {
unsigned long long N;
if (getAsUnsignedInteger(Scalar, 0, N))
return "invalid number";
Val = N;
return StringRef();
}
void ScalarTraits<int8_t>::output(const int8_t &Val, void *, raw_ostream &Out) {
// use temp in32_t because ostream thinks int8_t is a character
int32_t Num = Val;
Out << Num;
}
StringRef ScalarTraits<int8_t>::input(StringRef Scalar, void *, int8_t &Val) {
long long N;
if (getAsSignedInteger(Scalar, 0, N))
return "invalid number";
if ((N > 127) || (N < -128))
return "out of range number";
Val = N;
return StringRef();
}
void ScalarTraits<int16_t>::output(const int16_t &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<int16_t>::input(StringRef Scalar, void *, int16_t &Val) {
long long N;
if (getAsSignedInteger(Scalar, 0, N))
return "invalid number";
if ((N > INT16_MAX) || (N < INT16_MIN))
return "out of range number";
Val = N;
return StringRef();
}
void ScalarTraits<int32_t>::output(const int32_t &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<int32_t>::input(StringRef Scalar, void *, int32_t &Val) {
long long N;
if (getAsSignedInteger(Scalar, 0, N))
return "invalid number";
if ((N > INT32_MAX) || (N < INT32_MIN))
return "out of range number";
Val = N;
return StringRef();
}
void ScalarTraits<int64_t>::output(const int64_t &Val, void *,
raw_ostream &Out) {
Out << Val;
}
StringRef ScalarTraits<int64_t>::input(StringRef Scalar, void *, int64_t &Val) {
long long N;
if (getAsSignedInteger(Scalar, 0, N))
return "invalid number";
Val = N;
return StringRef();
}
void ScalarTraits<double>::output(const double &Val, void *, raw_ostream &Out) {
Out << format("%g", Val);
}
StringRef ScalarTraits<double>::input(StringRef Scalar, void *, double &Val) {
SmallString<32> buff(Scalar.begin(), Scalar.end());
char *end;
Val = strtod(buff.c_str(), &end);
if (*end != '\0')
return "invalid floating point number";
return StringRef();
}
void ScalarTraits<float>::output(const float &Val, void *, raw_ostream &Out) {
Out << format("%g", Val);
}
StringRef ScalarTraits<float>::input(StringRef Scalar, void *, float &Val) {
SmallString<32> buff(Scalar.begin(), Scalar.end());
char *end;
Val = strtod(buff.c_str(), &end);
if (*end != '\0')
return "invalid floating point number";
return StringRef();
}
void ScalarTraits<Hex8>::output(const Hex8 &Val, void *, raw_ostream &Out) {
uint8_t Num = Val;
Out << format("0x%02X", Num);
}
StringRef ScalarTraits<Hex8>::input(StringRef Scalar, void *, Hex8 &Val) {
unsigned long long n;
if (getAsUnsignedInteger(Scalar, 0, n))
return "invalid hex8 number";
if (n > 0xFF)
return "out of range hex8 number";
Val = n;
return StringRef();
}
void ScalarTraits<Hex16>::output(const Hex16 &Val, void *, raw_ostream &Out) {
uint16_t Num = Val;
Out << format("0x%04X", Num);
}
StringRef ScalarTraits<Hex16>::input(StringRef Scalar, void *, Hex16 &Val) {
unsigned long long n;
if (getAsUnsignedInteger(Scalar, 0, n))
return "invalid hex16 number";
if (n > 0xFFFF)
return "out of range hex16 number";
Val = n;
return StringRef();
}
void ScalarTraits<Hex32>::output(const Hex32 &Val, void *, raw_ostream &Out) {
uint32_t Num = Val;
Out << format("0x%08X", Num);
}
StringRef ScalarTraits<Hex32>::input(StringRef Scalar, void *, Hex32 &Val) {
unsigned long long n;
if (getAsUnsignedInteger(Scalar, 0, n))
return "invalid hex32 number";
if (n > 0xFFFFFFFFUL)
return "out of range hex32 number";
Val = n;
return StringRef();
}
void ScalarTraits<Hex64>::output(const Hex64 &Val, void *, raw_ostream &Out) {
uint64_t Num = Val;
Out << format("0x%016llX", Num);
}
StringRef ScalarTraits<Hex64>::input(StringRef Scalar, void *, Hex64 &Val) {
unsigned long long Num;
if (getAsUnsignedInteger(Scalar, 0, Num))
return "invalid hex64 number";
Val = Num;
return StringRef();
}