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v8/test/cctest/test-conversions.cc
marja 8e7241fdde Include only stuff you need, part 6: Fix cctest.h. 
Rebuilding (after touching certain files) is crazy slow because
includes are out of control. Many of these files we need to rebuild are
cctests which pull in more includes than they need.

BUG=v8:5294

Review-Url: https://codereview.chromium.org/2304553002
Cr-Commit-Position: refs/heads/master@{#39080}
2016-09-01 12:02:16 +00:00

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// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <stdlib.h>
#include "src/base/platform/platform.h"
#include "src/conversions.h"
#include "src/factory.h"
#include "src/isolate.h"
// FIXME(mstarzinger, marja): This is weird, but required because of the missing
// (disallowed) include: src/factory.h -> src/objects-inl.h
#include "src/objects-inl.h"
#include "src/objects.h"
// FIXME(mstarzinger, marja): This is weird, but required because of the missing
// (disallowed) include: src/type-feedback-vector.h ->
// src/type-feedback-vector-inl.h
#include "src/type-feedback-vector-inl.h"
#include "src/unicode-cache.h"
#include "src/v8.h"
#include "test/cctest/cctest.h"
using namespace v8::internal;
TEST(Hex) {
UnicodeCache uc;
CHECK_EQ(0.0, StringToDouble(&uc, "0x0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0X0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble(&uc, "0x1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(16.0, StringToDouble(&uc, "0x10", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(255.0, StringToDouble(&uc, "0xff",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(175.0, StringToDouble(&uc, "0xAF",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0x0", ALLOW_HEX));
CHECK_EQ(0.0, StringToDouble(&uc, "0X0", ALLOW_HEX));
CHECK_EQ(1.0, StringToDouble(&uc, "0x1", ALLOW_HEX));
CHECK_EQ(16.0, StringToDouble(&uc, "0x10", ALLOW_HEX));
CHECK_EQ(255.0, StringToDouble(&uc, "0xff", ALLOW_HEX));
CHECK_EQ(175.0, StringToDouble(&uc, "0xAF", ALLOW_HEX));
}
TEST(Octal) {
UnicodeCache uc;
CHECK_EQ(0.0, StringToDouble(&uc, "0o0", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0O0", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble(&uc, "0o1", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(7.0, StringToDouble(&uc, "0o7", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8.0, StringToDouble(&uc, "0o10",
ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(63.0, StringToDouble(&uc, "0o77",
ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0o0", ALLOW_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0O0", ALLOW_OCTAL));
CHECK_EQ(1.0, StringToDouble(&uc, "0o1", ALLOW_OCTAL));
CHECK_EQ(7.0, StringToDouble(&uc, "0o7", ALLOW_OCTAL));
CHECK_EQ(8.0, StringToDouble(&uc, "0o10", ALLOW_OCTAL));
CHECK_EQ(63.0, StringToDouble(&uc, "0o77", ALLOW_OCTAL));
}
TEST(ImplicitOctal) {
UnicodeCache uc;
CHECK_EQ(0.0, StringToDouble(&uc, "0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "00", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble(&uc, "01", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(7.0, StringToDouble(&uc, "07", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8.0, StringToDouble(&uc, "010", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(63.0, StringToDouble(&uc, "077", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0", ALLOW_HEX));
CHECK_EQ(0.0, StringToDouble(&uc, "00", ALLOW_HEX));
CHECK_EQ(1.0, StringToDouble(&uc, "01", ALLOW_HEX));
CHECK_EQ(7.0, StringToDouble(&uc, "07", ALLOW_HEX));
CHECK_EQ(10.0, StringToDouble(&uc, "010", ALLOW_HEX));
CHECK_EQ(77.0, StringToDouble(&uc, "077", ALLOW_HEX));
const double x = 010000000000; // Power of 2, no rounding errors.
CHECK_EQ(x * x * x * x * x, StringToDouble(&uc, "01" "0000000000" "0000000000"
"0000000000" "0000000000" "0000000000", ALLOW_IMPLICIT_OCTAL));
}
TEST(Binary) {
UnicodeCache uc;
CHECK_EQ(0.0, StringToDouble(&uc, "0b0",
ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0B0",
ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble(&uc, "0b1",
ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(2.0, StringToDouble(&uc, "0b10",
ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(3.0, StringToDouble(&uc, "0b11",
ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0b0", ALLOW_BINARY));
CHECK_EQ(0.0, StringToDouble(&uc, "0B0", ALLOW_BINARY));
CHECK_EQ(1.0, StringToDouble(&uc, "0b1", ALLOW_BINARY));
CHECK_EQ(2.0, StringToDouble(&uc, "0b10", ALLOW_BINARY));
CHECK_EQ(3.0, StringToDouble(&uc, "0b11", ALLOW_BINARY));
}
TEST(MalformedOctal) {
UnicodeCache uc;
CHECK_EQ(8.0, StringToDouble(&uc, "08", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(81.0, StringToDouble(&uc, "081", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(78.0, StringToDouble(&uc, "078", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK(std::isnan(StringToDouble(&uc, "07.7",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK(std::isnan(StringToDouble(&uc, "07.8",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK(std::isnan(StringToDouble(&uc, "07e8",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK(std::isnan(StringToDouble(&uc, "07e7",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK_EQ(8.7, StringToDouble(&uc, "08.7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8e7, StringToDouble(&uc, "08e7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.001, StringToDouble(&uc, "0.001",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.713, StringToDouble(&uc, "0.713",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8.0, StringToDouble(&uc, "08", ALLOW_HEX));
CHECK_EQ(81.0, StringToDouble(&uc, "081", ALLOW_HEX));
CHECK_EQ(78.0, StringToDouble(&uc, "078", ALLOW_HEX));
CHECK_EQ(7.7, StringToDouble(&uc, "07.7", ALLOW_HEX));
CHECK_EQ(7.8, StringToDouble(&uc, "07.8", ALLOW_HEX));
CHECK_EQ(7e8, StringToDouble(&uc, "07e8", ALLOW_HEX));
CHECK_EQ(7e7, StringToDouble(&uc, "07e7", ALLOW_HEX));
CHECK_EQ(8.7, StringToDouble(&uc, "08.7", ALLOW_HEX));
CHECK_EQ(8e7, StringToDouble(&uc, "08e7", ALLOW_HEX));
CHECK_EQ(0.001, StringToDouble(&uc, "0.001", ALLOW_HEX));
CHECK_EQ(0.713, StringToDouble(&uc, "0.713", ALLOW_HEX));
}
TEST(TrailingJunk) {
UnicodeCache uc;
CHECK_EQ(8.0, StringToDouble(&uc, "8q", ALLOW_TRAILING_JUNK));
CHECK_EQ(63.0, StringToDouble(&uc, "077qqq",
ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
CHECK_EQ(10.0, StringToDouble(&uc, "10e",
ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
CHECK_EQ(10.0, StringToDouble(&uc, "10e-",
ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
}
TEST(NonStrDecimalLiteral) {
UnicodeCache uc;
CHECK(std::isnan(StringToDouble(&uc, " ", NO_FLAGS,
std::numeric_limits<double>::quiet_NaN())));
CHECK(std::isnan(StringToDouble(&uc, "", NO_FLAGS,
std::numeric_limits<double>::quiet_NaN())));
CHECK(std::isnan(StringToDouble(&uc, " ", NO_FLAGS,
std::numeric_limits<double>::quiet_NaN())));
CHECK_EQ(0.0, StringToDouble(&uc, "", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble(&uc, " ", NO_FLAGS));
}
TEST(IntegerStrLiteral) {
UnicodeCache uc;
CHECK_EQ(0.0, StringToDouble(&uc, "0.0", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble(&uc, "0", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble(&uc, "00", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble(&uc, "000", NO_FLAGS));
CHECK_EQ(1.0, StringToDouble(&uc, "1", NO_FLAGS));
CHECK_EQ(-1.0, StringToDouble(&uc, "-1", NO_FLAGS));
CHECK_EQ(-1.0, StringToDouble(&uc, " -1 ", NO_FLAGS));
CHECK_EQ(1.0, StringToDouble(&uc, " +1 ", NO_FLAGS));
CHECK(std::isnan(StringToDouble(&uc, " - 1 ", NO_FLAGS)));
CHECK(std::isnan(StringToDouble(&uc, " + 1 ", NO_FLAGS)));
CHECK_EQ(0.0, StringToDouble(&uc, "0e0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0e1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0e-1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0e-100000",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0e+100000",
ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble(&uc, "0.", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
}
TEST(LongNumberStr) {
UnicodeCache uc;
CHECK_EQ(1e10, StringToDouble(&uc, "1" "0000000000", NO_FLAGS));
CHECK_EQ(1e20, StringToDouble(&uc, "1" "0000000000" "0000000000", NO_FLAGS));
CHECK_EQ(1e60, StringToDouble(&uc, "1" "0000000000" "0000000000" "0000000000"
"0000000000" "0000000000" "0000000000", NO_FLAGS));
CHECK_EQ(1e-2, StringToDouble(&uc, "." "0" "1", NO_FLAGS));
CHECK_EQ(1e-11, StringToDouble(&uc, "." "0000000000" "1", NO_FLAGS));
CHECK_EQ(1e-21, StringToDouble(&uc, "." "0000000000" "0000000000" "1",
NO_FLAGS));
CHECK_EQ(1e-61, StringToDouble(&uc, "." "0000000000" "0000000000" "0000000000"
"0000000000" "0000000000" "0000000000" "1", NO_FLAGS));
// x = 24414062505131248.0 and y = 24414062505131252.0 are representable in
// double. Check chat z = (x + y) / 2 is rounded to x...
CHECK_EQ(24414062505131248.0,
StringToDouble(&uc, "24414062505131250.0", NO_FLAGS));
// ... and z = (x + y) / 2 + delta is rounded to y.
CHECK_EQ(24414062505131252.0,
StringToDouble(&uc, "24414062505131250.000000001", NO_FLAGS));
}
TEST(MaximumSignificantDigits) {
UnicodeCache uc;
char num[] =
"4.4501477170144020250819966727949918635852426585926051135169509"
"122872622312493126406953054127118942431783801370080830523154578"
"251545303238277269592368457430440993619708911874715081505094180"
"604803751173783204118519353387964161152051487413083163272520124"
"606023105869053620631175265621765214646643181420505164043632222"
"668006474326056011713528291579642227455489682133472873831754840"
"341397809846934151055619529382191981473003234105366170879223151"
"087335413188049110555339027884856781219017754500629806224571029"
"581637117459456877330110324211689177656713705497387108207822477"
"584250967061891687062782163335299376138075114200886249979505279"
"101870966346394401564490729731565935244123171539810221213221201"
"847003580761626016356864581135848683152156368691976240370422601"
"6998291015625000000000000000000000000000000000e-308";
CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(&uc, num, NO_FLAGS));
// Changes the result of strtod (at least in glibc implementation).
num[sizeof(num) - 8] = '1';
CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(&uc, num, NO_FLAGS));
}
TEST(MinimumExponent) {
UnicodeCache uc;
// Same test but with different point-position.
char num[] =
"445014771701440202508199667279499186358524265859260511351695091"
"228726223124931264069530541271189424317838013700808305231545782"
"515453032382772695923684574304409936197089118747150815050941806"
"048037511737832041185193533879641611520514874130831632725201246"
"060231058690536206311752656217652146466431814205051640436322226"
"680064743260560117135282915796422274554896821334728738317548403"
"413978098469341510556195293821919814730032341053661708792231510"
"873354131880491105553390278848567812190177545006298062245710295"
"816371174594568773301103242116891776567137054973871082078224775"
"842509670618916870627821633352993761380751142008862499795052791"
"018709663463944015644907297315659352441231715398102212132212018"
"470035807616260163568645811358486831521563686919762403704226016"
"998291015625000000000000000000000000000000000e-1108";
CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(&uc, num, NO_FLAGS));
// Changes the result of strtod (at least in glibc implementation).
num[sizeof(num) - 8] = '1';
CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(&uc, num, NO_FLAGS));
}
TEST(MaximumExponent) {
UnicodeCache uc;
char num[] = "0.16e309";
CHECK_EQ(1.59999999999999997765e+308, StringToDouble(&uc, num, NO_FLAGS));
}
TEST(ExponentNumberStr) {
UnicodeCache uc;
CHECK_EQ(1e1, StringToDouble(&uc, "1e1", NO_FLAGS));
CHECK_EQ(1e1, StringToDouble(&uc, "1e+1", NO_FLAGS));
CHECK_EQ(1e-1, StringToDouble(&uc, "1e-1", NO_FLAGS));
CHECK_EQ(1e100, StringToDouble(&uc, "1e+100", NO_FLAGS));
CHECK_EQ(1e-100, StringToDouble(&uc, "1e-100", NO_FLAGS));
CHECK_EQ(1e-106, StringToDouble(&uc, ".000001e-100", NO_FLAGS));
}
class OneBit1: public BitField<uint32_t, 0, 1> {};
class OneBit2: public BitField<uint32_t, 7, 1> {};
class EightBit1: public BitField<uint32_t, 0, 8> {};
class EightBit2: public BitField<uint32_t, 13, 8> {};
TEST(BitField) {
uint32_t x;
// One bit bit field can hold values 0 and 1.
CHECK(!OneBit1::is_valid(static_cast<uint32_t>(-1)));
CHECK(!OneBit2::is_valid(static_cast<uint32_t>(-1)));
for (unsigned i = 0; i < 2; i++) {
CHECK(OneBit1::is_valid(i));
x = OneBit1::encode(i);
CHECK_EQ(i, OneBit1::decode(x));
CHECK(OneBit2::is_valid(i));
x = OneBit2::encode(i);
CHECK_EQ(i, OneBit2::decode(x));
}
CHECK(!OneBit1::is_valid(2));
CHECK(!OneBit2::is_valid(2));
// Eight bit bit field can hold values from 0 tp 255.
CHECK(!EightBit1::is_valid(static_cast<uint32_t>(-1)));
CHECK(!EightBit2::is_valid(static_cast<uint32_t>(-1)));
for (unsigned i = 0; i < 256; i++) {
CHECK(EightBit1::is_valid(i));
x = EightBit1::encode(i);
CHECK_EQ(i, EightBit1::decode(x));
CHECK(EightBit2::is_valid(i));
x = EightBit2::encode(i);
CHECK_EQ(i, EightBit2::decode(x));
}
CHECK(!EightBit1::is_valid(256));
CHECK(!EightBit2::is_valid(256));
}
class UpperBits: public BitField64<int, 61, 3> {};
class MiddleBits: public BitField64<int, 31, 2> {};
TEST(BitField64) {
uint64_t x;
// Test most significant bits.
x = V8_2PART_UINT64_C(0xE0000000, 00000000);
CHECK(x == UpperBits::encode(7));
CHECK_EQ(7, UpperBits::decode(x));
// Test the 32/64-bit boundary bits.
x = V8_2PART_UINT64_C(0x00000001, 80000000);
CHECK(x == MiddleBits::encode(3));
CHECK_EQ(3, MiddleBits::decode(x));
}
static void CheckNonArrayIndex(bool expected, const char* chars) {
auto isolate = CcTest::i_isolate();
auto string = isolate->factory()->NewStringFromAsciiChecked(chars);
CHECK_EQ(expected, IsSpecialIndex(isolate->unicode_cache(), *string));
}
TEST(SpecialIndexParsing) {
auto isolate = CcTest::i_isolate();
HandleScope scope(isolate);
CheckNonArrayIndex(false, "");
CheckNonArrayIndex(false, "-");
CheckNonArrayIndex(true, "0");
CheckNonArrayIndex(true, "-0");
CheckNonArrayIndex(false, "01");
CheckNonArrayIndex(false, "-01");
CheckNonArrayIndex(true, "0.5");
CheckNonArrayIndex(true, "-0.5");
CheckNonArrayIndex(true, "1");
CheckNonArrayIndex(true, "-1");
CheckNonArrayIndex(true, "10");
CheckNonArrayIndex(true, "-10");
CheckNonArrayIndex(true, "NaN");
CheckNonArrayIndex(true, "Infinity");
CheckNonArrayIndex(true, "-Infinity");
CheckNonArrayIndex(true, "4294967295");
CheckNonArrayIndex(true, "429496.7295");
CheckNonArrayIndex(true, "1.3333333333333333");
CheckNonArrayIndex(false, "1.3333333333333339");
CheckNonArrayIndex(true, "1.333333333333331e+222");
CheckNonArrayIndex(true, "-1.3333333333333211e+222");
CheckNonArrayIndex(false, "-1.3333333333333311e+222");
CheckNonArrayIndex(true, "429496.7295");
CheckNonArrayIndex(false, "43s3");
CheckNonArrayIndex(true, "4294967296");
CheckNonArrayIndex(true, "-4294967296");
CheckNonArrayIndex(true, "999999999999999");
CheckNonArrayIndex(false, "9999999999999999");
CheckNonArrayIndex(true, "-999999999999999");
CheckNonArrayIndex(false, "-9999999999999999");
CheckNonArrayIndex(false, "42949672964294967296429496729694966");
}
TEST(NoHandlesForTryNumberToSize) {
i::Isolate* isolate = CcTest::i_isolate();
size_t result = 0;
{
SealHandleScope no_handles(isolate);
Smi* smi = Smi::FromInt(1);
CHECK(TryNumberToSize(smi, &result));
CHECK_EQ(result, 1);
}
result = 0;
{
HandleScope scope(isolate);
Handle<HeapNumber> heap_number1 = isolate->factory()->NewHeapNumber(2.0);
{
SealHandleScope no_handles(isolate);
CHECK(TryNumberToSize(*heap_number1, &result));
CHECK_EQ(result, 2);
}
Handle<HeapNumber> heap_number2 = isolate->factory()->NewHeapNumber(
static_cast<double>(std::numeric_limits<size_t>::max()) + 10000.0);
{
SealHandleScope no_handles(isolate);
CHECK(!TryNumberToSize(*heap_number2, &result));
}
}
}
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