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Kmake/deps/v8/test/mjsunit/turboshaft/maglev-frontend/generator-throw-loop.js

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2026-05-26 23:36:42 -07:00
// Copyright 2024 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --turbolev --turbofan
function* foo(x) {
for (let i = 0; i < x; i++) {
try {
if (i % 2 == 0) {
yield i + 17;
}
} catch (e) {
yield i + 3;
}
}
yield 42;
}
%PrepareFunctionForOptimization(foo);
let gen = foo(4);
assertEquals(17, gen.next().value);
assertEquals(3, gen.throw().value);
assertEquals(19, gen.next().value);
assertEquals(42, gen.next().value);
assertEquals(undefined, gen.next().value);
%OptimizeFunctionOnNextCall(foo);
gen = foo(4);
assertEquals(17, gen.next().value);
assertEquals(3, gen.throw().value);
assertEquals(19, gen.next().value);
assertEquals(42, gen.next().value);
assertEquals(undefined, gen.next().value);