blob: 06177e880fab0d98ab79eb7d8369995f7c1affaa [file] [log] [blame]
function shouldBe(expected, actual, msg = "") {
if (msg)
msg = " for " + msg;
if (actual !== expected)
throw new Error("bad value" + msg + ": " + actual + ". Expected " + expected);
}
function shouldBeAsync(expected, promise, msg) {
let actual;
var hadError = false;
promise.then(function(value) { actual = value; },
function(error) { hadError = true; actual = error; });
drainMicrotasks();
if (hadError)
throw actual;
shouldBe(expected, actual, msg);
}
var AsyncFunctionPrototype = async function(){}.__proto__;
function sink (p, q) {
async function g(x) { return x; };
if (p) { if (q) g.inner = 42; return g; }
async function f(x) { return x; };
return f;
}
noInline(sink);
for (var i = 0; i < 10000; ++i) {
var f = sink(true, true);
shouldBe(f.__proto__, AsyncFunctionPrototype);
shouldBeAsync(42, f(42));
}
// At this point, the function should be compiled down to the FTL
// Test the allocation on the implicit inner else branch
var f = sink(true, false);
shouldBe(f.__proto__, AsyncFunctionPrototype);
shouldBeAsync(12, f(12));
// Check that the allocation did not sink beyond the property assignment
var f = sink(true, true);
shouldBe(f.__proto__, AsyncFunctionPrototype);
var result = f.inner;
if (result !== 42)
throw "Error: inner should be 42 but is " + result;