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Gorochu
2026-05-26 23:36:42 -07:00
parent ba051b2f74
commit 555ec72358
41615 changed files with 13344630 additions and 1 deletions
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deps/v8/test/mjsunit/regress/regress-4388.js vendored Normal file
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// Copyright 2015 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-filter=test*
// Tests that TurboFan emits a dynamic hole-check for the temporal dead zone at
// a non-initializing assignments to a {let} variable.
function test_hole_check_for_let(a) {
'use strict';
{ switch (a) {
case 0: let x;
case 1: x = 9;
}
}
}
%PrepareFunctionForOptimization(test_hole_check_for_let);
assertDoesNotThrow("test_hole_check_for_let(0)");
assertThrows("test_hole_check_for_let(1)", ReferenceError);
%OptimizeFunctionOnNextCall(test_hole_check_for_let)
assertThrows("test_hole_check_for_let(1)", ReferenceError);
// Tests that TurboFan emits a dynamic hole-check for the temporal dead zone at
// a non-initializing assignments to a {const} variable.
function test_hole_check_for_const(a) {
'use strict';
{ switch (a) {
case 0: const x = 3;
case 1: x = 2;
}
}
}
%PrepareFunctionForOptimization(test_hole_check_for_const);
assertThrows("test_hole_check_for_const(0)", TypeError);
assertThrows("test_hole_check_for_const(1)", ReferenceError);
%OptimizeFunctionOnNextCall(test_hole_check_for_const)
assertThrows("test_hole_check_for_const(1)", ReferenceError);