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testbind_bigint.js
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25 lines (22 loc) · 883 Bytes
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// This code represents a simple native JavaScript binding to a test C function
// that returns a 64 bit long. Notice that the least significant 32 bits are
// returned in the normal return value, but the most significant 32 bits are
// returned via the accessor method getTempRet0()
var Module = {
'noExitRuntime' : true
};
Module['runtest'] = function() {
// Use eval to create BigInt, as no support for Xn notation yet in JS
// optimizer.
var bigint = _test_return64(eval('0xaabbccdd11223344n'));
var low = Number(bigint & 0xffffffffn);
var high = Number(bigint >> 32n);
console.log("low = " + low);
console.log("high = " + high);
var ptr = _get_func_ptr();
bigint = dynCall('jj', ptr, [eval('0xabcdef1912345678n')]);
low = Number(bigint & 0xffffffffn);
high = Number(bigint >> 32n);
console.log("low = " + low);
console.log("high = " + high);
};