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// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// limitations under the License.
#include "i18n-utils.h"
#include <string.h>
#include "unicode/unistr.h"
namespace v8_i18n {
// static
void Utils::StrNCopy(char* dest, int length, const char* src) {
if (!dest || !src) return;
strncpy(dest, src, length);
dest[length - 1] = '\0';
}
// static
bool Utils::V8StringToUnicodeString(const v8::Handle<v8::Value>& input,
icu::UnicodeString* output) {
v8::String::Utf8Value utf8_value(input);
if (*utf8_value == NULL) return false;
output->setTo(icu::UnicodeString::fromUTF8(*utf8_value));
return true;
}
// static
bool Utils::ExtractStringSetting(const v8::Handle<v8::Object>& settings,
const char* setting,
icu::UnicodeString* result) {
if (!setting || !result) return false;
v8::HandleScope handle_scope;
v8::TryCatch try_catch;
v8::Handle<v8::Value> value = settings->Get(v8::String::New(setting));
if (try_catch.HasCaught()) {
return false;
}
// No need to check if |value| is empty because it's taken care of
// by TryCatch above.
if (!value->IsUndefined() && !value->IsNull() && value->IsString()) {
return V8StringToUnicodeString(value, result);
}
return false;
}
// static
bool Utils::ExtractIntegerSetting(const v8::Handle<v8::Object>& settings,
const char* setting,
int32_t* result) {
if (!setting || !result) return false;
v8::HandleScope handle_scope;
v8::TryCatch try_catch;
v8::Handle<v8::Value> value = settings->Get(v8::String::New(setting));
if (try_catch.HasCaught()) {
return false;
}
// No need to check if |value| is empty because it's taken care of
// by TryCatch above.
if (!value->IsUndefined() && !value->IsNull() && value->IsNumber()) {
*result = static_cast<int32_t>(value->Int32Value());
return true;
}
return false;
}
// static
bool Utils::ExtractBooleanSetting(const v8::Handle<v8::Object>& settings,
const char* setting,
bool* result) {
if (!setting || !result) return false;
v8::HandleScope handle_scope;
v8::TryCatch try_catch;
v8::Handle<v8::Value> value = settings->Get(v8::String::New(setting));
if (try_catch.HasCaught()) {
return false;
}
// No need to check if |value| is empty because it's taken care of
// by TryCatch above.
if (!value->IsUndefined() && !value->IsNull() && value->IsBoolean()) {
*result = static_cast<bool>(value->BooleanValue());
return true;
}
return false;
}
// static
void Utils::AsciiToUChar(const char* source,
int32_t source_length,
UChar* target,
int32_t target_length) {
int32_t length =
source_length < target_length ? source_length : target_length;
if (length <= 0) {
return;
}
for (int32_t i = 0; i < length - 1; ++i) {
target[i] = static_cast<UChar>(source[i]);
}
target[length - 1] = 0x0u;
}
static v8::Local<v8::ObjectTemplate> ToLocal(i::Handle<i::Object> handle) {
return v8::Utils::ToLocal(i::Handle<i::ObjectTemplateInfo>::cast(handle));
}
template<int internal_fields, i::EternalHandles::SingletonHandle field>
static v8::Local<v8::ObjectTemplate> GetEternal(v8::Isolate* external) {
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external);
if (isolate->eternal_handles()->Exists(field)) {
return ToLocal(isolate->eternal_handles()->GetSingleton(field));
}
v8::Local<v8::ObjectTemplate> raw_template(v8::ObjectTemplate::New());
raw_template->SetInternalFieldCount(internal_fields);
return ToLocal(
isolate->eternal_handles()->CreateSingleton(
isolate,
*v8::Utils::OpenHandle(*raw_template),
field));
}
// static
v8::Local<v8::ObjectTemplate> Utils::GetTemplate(v8::Isolate* isolate) {
return GetEternal<1, i::EternalHandles::I18N_TEMPLATE_ONE>(isolate);
}
// static
v8::Local<v8::ObjectTemplate> Utils::GetTemplate2(v8::Isolate* isolate) {
return GetEternal<2, i::EternalHandles::I18N_TEMPLATE_TWO>(isolate);
}
} // namespace v8_i18n
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