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/*global Module*/
/*global HEAP32*/
/*global Pointer_stringify, writeStringToMemory*/
/*global requireRegisteredType*/
var _emval_handle_array = [];
var _emval_free_list = [];
// Public JS API
/** @expose */
Module.count_emval_handles = function() {
var count = 0;
for (var i = 0; i < _emval_handle_array.length; ++i) {
if (_emval_handle_array[i] !== undefined) {
++count;
}
}
return count;
};
// Private C++ API
function __emval_register(value) {
var handle = _emval_free_list.length ?
_emval_free_list.pop() :
_emval_handle_array.length;
_emval_handle_array[handle] = {refcount: 1, value: value};
return handle;
}
function __emval_incref(handle) {
_emval_handle_array[handle].refcount += 1;
}
function __emval_decref(handle) {
if (0 === --_emval_handle_array[handle].refcount) {
delete _emval_handle_array[handle];
_emval_free_list.push(handle);
var actual_length = _emval_handle_array.length;
while (actual_length > 0 && _emval_handle_array[actual_length - 1] === undefined) {
--actual_length;
}
_emval_handle_array.length = actual_length;
}
}
function __emval_new_array() {
return __emval_register([]);
}
function __emval_new_object() {
return __emval_register({});
}
function __emval_undefined() {
return __emval_register(undefined);
}
function __emval_null() {
return __emval_register(null);
}
function __emval_new_cstring(v) {
return __emval_register(Pointer_stringify(v));
}
function __emval_take_value(type, v) {
type = requireRegisteredType(type, '_emval_take_value');
v = type.fromWireTypeAutoDowncast ? type.fromWireTypeAutoDowncast(v) : type.fromWireType(v);
return __emval_register(v);
}
function __emval_new(handle) {
return __emval_register(new (_emval_handle_array[handle].value));
}
var global = (function(){return Function;})()('return this')();
function __emval_get_global(name) {
name = Pointer_stringify(name);
return __emval_register(global[name]);
}
function __emval_get_property(handle, key) {
return __emval_register(_emval_handle_array[handle].value[_emval_handle_array[key].value]);
}
function __emval_set_property(handle, key, value) {
_emval_handle_array[handle].value[_emval_handle_array[key].value] = _emval_handle_array[value].value;
}
function __emval_as(handle, returnType) {
returnType = requireRegisteredType(returnType, 'emval::as');
var destructors = [];
// caller owns destructing
return returnType.toWireType(destructors, _emval_handle_array[handle].value);
}
function parseParameters(argCount, argTypes, argWireTypes) {
var a = new Array(argCount);
for (var i = 0; i < argCount; ++i) {
var argType = requireRegisteredType(
HEAP32[(argTypes >> 2) + i],
"parameter " + i);
a[i] = argType.fromWireType(argWireTypes[i]);
}
return a;
}
function __emval_call(handle, argCount, argTypes) {
var fn = _emval_handle_array[handle].value;
var args = parseParameters(
argCount,
argTypes,
Array.prototype.slice.call(arguments, 3));
var rv = fn.apply(undefined, args);
return __emval_register(rv);
}
function __emval_call_method(handle, name, argCount, argTypes) {
name = Pointer_stringify(name);
var args = parseParameters(
argCount,
argTypes,
Array.prototype.slice.call(arguments, 4));
var obj = _emval_handle_array[handle].value;
var rv = obj[name].apply(obj, args);
return __emval_register(rv);
}
function __emval_call_void_method(handle, name, argCount, argTypes) {
name = Pointer_stringify(name);
var args = parseParameters(
argCount,
argTypes,
Array.prototype.slice.call(arguments, 4));
var obj = _emval_handle_array[handle].value;
obj[name].apply(obj, args);
}
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