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//
// immer: immutable data structures for C++
// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
#include <immer/vector.hpp>
#include <immer/refcount/unsafe_refcount_policy.hpp>
#include <emscripten/bind.h>
namespace {
using memory_t = immer::memory_policy<
immer::unsafe_free_list_heap_policy<immer::malloc_heap>,
immer::unsafe_refcount_policy>;
template <typename T>
using js_vector_t = immer::vector<T, memory_t>;
template <typename VectorT>
VectorT range(typename VectorT::value_type first,
typename VectorT::value_type last)
{
auto v = VectorT{};
for (; first != last; ++first)
v = std::move(v).push_back(first);
return v;
}
template <typename VectorT>
VectorT range_slow(typename VectorT::value_type first,
typename VectorT::value_type last)
{
auto v = VectorT{};
for (; first != last; ++first)
v = v.push_back(first);
return v;
}
template <typename VectorT>
VectorT push_back(VectorT& v, typename VectorT::value_type x)
{ return v.push_back(x); }
template <typename VectorT>
VectorT set(VectorT& v, std::size_t i, typename VectorT::value_type x)
{ return v.set(i, x); }
template <typename T>
void bind_vector(const char* name)
{
using emscripten::class_;
using vector_t = js_vector_t<T>;
class_<vector_t>(name)
.constructor()
.function("push", &push_back<vector_t>)
.function("set", &set<vector_t>)
.function("get", &vector_t::operator[])
.property("size", &vector_t::size);
}
} // anonymous namespace
EMSCRIPTEN_BINDINGS(immer)
{
using emscripten::function;
bind_vector<emscripten::val>("Vector");
bind_vector<int>("VectorInt");
bind_vector<double>("VectorNumber");
function("range_int", &range<js_vector_t<int>>);
function("rangeSlow_int", &range_slow<js_vector_t<int>>);
function("range_double", &range<js_vector_t<double>>);
function("rangeSlow_double", &range_slow<js_vector_t<double>>);
}
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