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#pragma once
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#pragma GCC diagnostic ignored "-Wshadow"
#include <nan.h>
#pragma GCC diagnostic pop
#include <mbgl/util/optional.hpp>
#include <mbgl/util/feature.hpp>
#include <mbgl/style/conversion.hpp>
namespace mbgl {
namespace style {
namespace conversion {
inline bool isUndefined(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
return value->IsUndefined() || value->IsNull();
}
inline bool isArray(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
return value->IsArray();
}
inline std::size_t arrayLength(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
return value.As<v8::Array>()->Length();
}
inline v8::Local<v8::Value> arrayMember(v8::Local<v8::Value> value, std::size_t i) {
Nan::EscapableHandleScope scope;
return scope.Escape(Nan::Get(value.As<v8::Array>(), i).ToLocalChecked());
}
inline bool isObject(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
return value->IsObject() && !value->IsArray();
}
inline optional<v8::Local<v8::Value>> objectMember(v8::Local<v8::Value> value, const char * name) {
Nan::EscapableHandleScope scope;
if (!Nan::Has(Nan::To<v8::Object>(value).ToLocalChecked(), Nan::New(name).ToLocalChecked()).FromJust()) {
return {};
}
Nan::MaybeLocal<v8::Value> result = Nan::Get(Nan::To<v8::Object>(value).ToLocalChecked(), Nan::New(name).ToLocalChecked());
if (result.IsEmpty()) {
return {};
}
return scope.Escape(result.ToLocalChecked());
}
template <class Fn>
optional<Error> eachMember(v8::Local<v8::Value> value, Fn&& fn) {
Nan::HandleScope scope;
v8::Local<v8::Array> names = Nan::GetOwnPropertyNames(Nan::To<v8::Object>(value).ToLocalChecked()).ToLocalChecked();
for (uint32_t i = 0; i < names->Length(); ++i) {
v8::Local<v8::Value> k = Nan::Get(names, i).ToLocalChecked();
v8::Local<v8::Value> v = Nan::Get(Nan::To<v8::Object>(value).ToLocalChecked(), k).ToLocalChecked();
optional<Error> result = fn(*Nan::Utf8String(k), v);
if (result) {
return result;
}
}
return {};
}
inline optional<bool> toBool(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
if (!value->IsBoolean()) {
return {};
}
return value->BooleanValue();
}
inline optional<float> toNumber(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
if (!value->IsNumber()) {
return {};
}
return value->NumberValue();
}
inline optional<double> toDouble(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
if (!value->IsNumber()) {
return {};
}
return value->NumberValue();
}
inline optional<std::string> toString(v8::Local<v8::Value> value) {
Nan::HandleScope scope;
if (!value->IsString()) {
return {};
}
return std::string(*Nan::Utf8String(value));
}
inline optional<Value> toValue(v8::Local<v8::Value> value) {
if (value->IsFalse()) {
return { false };
} else if (value->IsTrue()) {
return { true };
} else if (value->IsString()) {
return { std::string(*Nan::Utf8String(value)) };
} else if (value->IsUint32()) {
return { std::uint64_t(value->Uint32Value()) };
} else if (value->IsInt32()) {
return { std::int64_t(value->Int32Value()) };
} else if (value->IsNumber()) {
return { value->NumberValue() };
} else {
return {};
}
}
} // namespace conversion
} // namespace style
} // namespace mbgl
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