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Kmake/deps/v8/test/mjsunit/compiler/optimized-array-at-throw.js
2026-05-26 23:36:42 -07:00

32 lines
796 B
JavaScript

// Copyright 2025 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 --turbo-inline-array-builtins --turbofan
// Flags: --no-always-turbofan
const arr = [];
const arrHoley = [];
arrHoley[10000] = 42;
let caught;
function testArrayAtWithTryCatch(a, idx) {
try {
return a.at(idx);
} catch (e) { caught = e; }
}
%PrepareFunctionForOptimization(testArrayAtWithTryCatch);
testArrayAtWithTryCatch([]);
testArrayAtWithTryCatch(arrHoley);
Object.defineProperty(arr, 1, {
get: function () {
throw "should be caught";
}
});
%OptimizeFunctionOnNextCall(testArrayAtWithTryCatch);
testArrayAtWithTryCatch(arr, 1);
assertEquals("should be caught", caught);