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f226350fcb
PR-URL: https://github.com/nodejs/node/pull/47251 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
60 lines
2.7 KiB
JavaScript
60 lines
2.7 KiB
JavaScript
// Copyright 2022 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --turbofan
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function throwsRepeated(fn, ErrorType, required_compilation_count) {
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for (let j = 0; j < (required_compilation_count ?? 1); j++) {
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// Collect type feedback.
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%PrepareFunctionForOptimization(fn);
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for (let i = 0; i < 5; i++) assertThrows(fn, ErrorType);
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// Force compilation and run.
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%OptimizeFunctionOnNextCall(fn);
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assertThrows(fn, ErrorType);
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}
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// If the function isn't optimized, a deopt happened on the call above.
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assertOptimized(fn);
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}
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function repeated(fn) {
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// Collect type feedback.
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%PrepareFunctionForOptimization(fn);
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for (let i = 0; i < 2; i++) fn();
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// Force compilation and run.
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%OptimizeFunctionOnNextCall(fn);
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fn();
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// If the function isn't optimized, a deopt happened on the call above.
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assertOptimized(fn);
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}
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repeated(() => { for (let p of "abc") { } });
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repeated(() => { for (let p of [1, 2, 3]) { } });
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throwsRepeated(() => { for (let p of {a: 1, b: 2}) { } }, TypeError);
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let objWithIterator = { [Symbol.iterator]: function* () { yield 1; } };
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repeated(() => { for (let p of objWithIterator) { } });
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throwsRepeated(() => { for (let p of 5) { } }, TypeError);
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throwsRepeated(() => { for (let p of new Number(5)) { } }, TypeError);
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throwsRepeated(() => { for (let p of true) { } }, TypeError);
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throwsRepeated(() => { for (let p of new BigInt(123)) { } }, TypeError);
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throwsRepeated(() => { for (let p of Symbol("symbol")) { } }, TypeError);
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throwsRepeated(() => { for (let p of undefined) { } }, TypeError);
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throwsRepeated(() => { for (let p of null) { } }, TypeError);
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throwsRepeated(() => (undefined).val = undefined, TypeError);
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throwsRepeated(() => (undefined)["test"] = undefined, TypeError);
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throwsRepeated(() => (undefined)[Symbol("test")] = undefined, TypeError);
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throwsRepeated(() => (undefined)[null] = undefined, TypeError);
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throwsRepeated(() => (undefined)[undefined] = undefined, TypeError);
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throwsRepeated(() => (undefined)[0] = undefined, TypeError);
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throwsRepeated(() => (undefined)[NaN] = undefined, TypeError);
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throwsRepeated(() => (null)[0] = undefined, TypeError);
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// BigInt.asIntN() deopts once but provides a better suitable compile result
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// on the second compilation which doesn't deopt any more.
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let compiles = 2;
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throwsRepeated(() => BigInt.asIntN(2, 2), TypeError, compiles);
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throwsRepeated(() => BigInt.asIntN(2, () => {}), SyntaxError, compiles);
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throwsRepeated(() => BigInt.asIntN(2, {some: Object}), SyntaxError, compiles);
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throwsRepeated(() => BigInt.asIntN(2, Symbol("test")), TypeError, compiles);
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throwsRepeated(() => BigInt.asIntN(2, null), TypeError, compiles);
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