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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/inspector/string-util.h"
#include <cinttypes>
#include <cmath>
#include "src/base/platform/platform.h"
#include "src/inspector/protocol/Protocol.h"
#include "src/numbers/conversions.h"
namespace v8_inspector {
v8::Local<v8::String> toV8String(v8::Isolate* isolate, const String16& string) {
if (string.isEmpty()) return v8::String::Empty(isolate);
DCHECK_GT(v8::String::kMaxLength, string.length());
return v8::String::NewFromTwoByte(
isolate, reinterpret_cast<const uint16_t*>(string.characters16()),
v8::NewStringType::kNormal, static_cast<int>(string.length()))
.ToLocalChecked();
}
v8::Local<v8::String> toV8StringInternalized(v8::Isolate* isolate,
const String16& string) {
if (string.isEmpty()) return v8::String::Empty(isolate);
DCHECK_GT(v8::String::kMaxLength, string.length());
return v8::String::NewFromTwoByte(
isolate, reinterpret_cast<const uint16_t*>(string.characters16()),
v8::NewStringType::kInternalized,
static_cast<int>(string.length()))
.ToLocalChecked();
}
v8::Local<v8::String> toV8StringInternalized(v8::Isolate* isolate,
const char* str) {
return v8::String::NewFromUtf8(isolate, str, v8::NewStringType::kInternalized)
.ToLocalChecked();
}
v8::Local<v8::String> toV8String(v8::Isolate* isolate,
const StringView& string) {
if (!string.length()) return v8::String::Empty(isolate);
DCHECK_GT(v8::String::kMaxLength, string.length());
if (string.is8Bit())
return v8::String::NewFromOneByte(
isolate, reinterpret_cast<const uint8_t*>(string.characters8()),
v8::NewStringType::kNormal, static_cast<int>(string.length()))
.ToLocalChecked();
return v8::String::NewFromTwoByte(
isolate, reinterpret_cast<const uint16_t*>(string.characters16()),
v8::NewStringType::kNormal, static_cast<int>(string.length()))
.ToLocalChecked();
}
String16 toProtocolString(v8::Isolate* isolate, v8::Local<v8::String> value) {
if (value.IsEmpty() || value->IsNullOrUndefined()) return String16();
std::unique_ptr<UChar[]> buffer(new UChar[value->Length()]);
value->Write(isolate, reinterpret_cast<uint16_t*>(buffer.get()), 0,
value->Length());
return String16(buffer.get(), value->Length());
}
String16 toProtocolStringWithTypeCheck(v8::Isolate* isolate,
v8::Local<v8::Value> value) {
if (value.IsEmpty() || !value->IsString()) return String16();
return toProtocolString(isolate, value.As<v8::String>());
}
String16 toString16(const StringView& string) {
if (!string.length()) return String16();
if (string.is8Bit())
return String16(reinterpret_cast<const char*>(string.characters8()),
string.length());
return String16(reinterpret_cast<const UChar*>(string.characters16()),
string.length());
}
StringView toStringView(const String16& string) {
if (string.isEmpty()) return StringView();
return StringView(reinterpret_cast<const uint16_t*>(string.characters16()),
string.length());
}
bool stringViewStartsWith(const StringView& string, const char* prefix) {
if (!string.length()) return !(*prefix);
if (string.is8Bit()) {
for (size_t i = 0, j = 0; prefix[j] && i < string.length(); ++i, ++j) {
if (string.characters8()[i] != prefix[j]) return false;
}
} else {
for (size_t i = 0, j = 0; prefix[j] && i < string.length(); ++i, ++j) {
if (string.characters16()[i] != prefix[j]) return false;
}
}
return true;
}
namespace protocol {
// static
double StringUtil::toDouble(const char* s, size_t len, bool* isOk) {
int flags = v8::internal::ALLOW_HEX | v8::internal::ALLOW_OCTAL |
v8::internal::ALLOW_BINARY;
double result = v8::internal::StringToDouble(s, flags);
*isOk = !std::isnan(result);
return result;
}
std::unique_ptr<protocol::Value> StringUtil::parseJSON(
const StringView& string) {
if (!string.length()) return nullptr;
if (string.is8Bit()) {
return parseJSONCharacters(string.characters8(),
static_cast<int>(string.length()));
}
return parseJSONCharacters(string.characters16(),
static_cast<int>(string.length()));
}
std::unique_ptr<protocol::Value> StringUtil::parseJSON(const String16& string) {
if (!string.length()) return nullptr;
return parseJSONCharacters(string.characters16(),
static_cast<int>(string.length()));
}
// static
std::unique_ptr<protocol::Value> StringUtil::parseProtocolMessage(
const ProtocolMessage& message) {
return parseJSON(message.json);
}
// static
ProtocolMessage StringUtil::jsonToMessage(String message) {
ProtocolMessage result;
result.json = std::move(message);
return result;
}
// static
ProtocolMessage StringUtil::binaryToMessage(std::vector<uint8_t> message) {
ProtocolMessage result;
result.binary = std::move(message);
return result;
}
// static
void StringUtil::builderAppendQuotedString(StringBuilder& builder,
const String& str) {
builder.append('"');
if (!str.isEmpty()) {
escapeWideStringForJSON(
reinterpret_cast<const uint16_t*>(str.characters16()),
static_cast<int>(str.length()), &builder);
}
builder.append('"');
}
} // namespace protocol
// static
std::unique_ptr<StringBuffer> StringBuffer::create(const StringView& string) {
String16 owner = toString16(string);
return StringBufferImpl::adopt(owner);
}
// static
std::unique_ptr<StringBufferImpl> StringBufferImpl::adopt(String16& string) {
return std::unique_ptr<StringBufferImpl>(new StringBufferImpl(string));
}
StringBufferImpl::StringBufferImpl(String16& string) {
m_owner.swap(string);
m_string = toStringView(m_owner);
}
String16 debuggerIdToString(const std::pair<int64_t, int64_t>& debuggerId) {
const size_t kBufferSize = 35;
char buffer[kBufferSize];
v8::base::OS::SNPrintF(buffer, kBufferSize, "(%08" PRIX64 "%08" PRIX64 ")",
debuggerId.first, debuggerId.second);
return String16(buffer);
}
String16 stackTraceIdToString(uintptr_t id) {
String16Builder builder;
builder.appendNumber(static_cast<size_t>(id));
return builder.toString();
}
} // namespace v8_inspector
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