JSTests/stress/wasm-comma.js

//@ skip

function shouldBe(actual, expected) {
    if (actual !== expected)
        throw new Error('bad value: ' + actual);
}

/*
wasm/comma.wasm is generated by pack-asmjs <https://github.com/WebAssembly/polyfill-prototype-1> from the following script:

function asmModule(global, env, buffer) {
    "use asm";

    var g = 0;

    function setG(x) {
        x = x | 0;
        g = x;
    }

    function testComma1() {
        return 1, 2, 3, 4;
    }

    function testComma2() {
        var x = 0.0;
        return (x = x + 1.0), (x = x * 2.0), +x;
    }

    function testComma3() {
        return (g = 0), setG(42), (g | 0);
    }

    return {
        testComma1: testComma1,
        testComma2: testComma2,
        testComma3: testComma3,
    };
}
*/

var module = loadWebAssembly("wasm/comma.wasm");

shouldBe(module.testComma1(), 4);
shouldBe(module.testComma2(), 2);
shouldBe(module.testComma3(), 42);