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v8/test/cctest/test-conversions.cc
Leszek Swirski 7aac6bc905 [cleanup] Make unicode predicate cache tables static 
Moves the unicode predicate cache tables out of the unicode cache,
and turns them into generic predicates in char-predicates.h which
use static constexpr tables.

This drops the per-isolate cost of unicode caches, and removes the
need for accessing the unicode cache from most files. It does remove
the mutability of the cache, which means that there may be regressions
when parsing non-ASCII identifiers. Most likely the benefits to ASCII
identifiers/keywords will outweigh any non-ASCII costs.

Change-Id: I9a7a8b7c9b22d3e9ede824ab4e27f133ce20a399
Reviewed-on: https://chromium-review.googlesource.com/c/1335564
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57506}
2018-11-14 15:33:45 +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/heap/factory-inl.h"
#include "src/isolate.h"
#include "src/objects.h"
#include "src/objects/smi.h"
#include "src/v8.h"
#include "test/cctest/cctest.h"
namespace v8 {
namespace internal {
TEST(Hex) {
CHECK_EQ(0.0, StringToDouble("0x0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0X0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble("0x1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(16.0, StringToDouble("0x10", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(255.0, StringToDouble("0xFF", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(175.0, StringToDouble("0xAF", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0x0", ALLOW_HEX));
CHECK_EQ(0.0, StringToDouble("0X0", ALLOW_HEX));
CHECK_EQ(1.0, StringToDouble("0x1", ALLOW_HEX));
CHECK_EQ(16.0, StringToDouble("0x10", ALLOW_HEX));
CHECK_EQ(255.0, StringToDouble("0xFF", ALLOW_HEX));
CHECK_EQ(175.0, StringToDouble("0xAF", ALLOW_HEX));
}
TEST(Octal) {
CHECK_EQ(0.0, StringToDouble("0o0", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0O0", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble("0o1", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(7.0, StringToDouble("0o7", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8.0, StringToDouble("0o10", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(63.0, StringToDouble("0o77", ALLOW_OCTAL | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0o0", ALLOW_OCTAL));
CHECK_EQ(0.0, StringToDouble("0O0", ALLOW_OCTAL));
CHECK_EQ(1.0, StringToDouble("0o1", ALLOW_OCTAL));
CHECK_EQ(7.0, StringToDouble("0o7", ALLOW_OCTAL));
CHECK_EQ(8.0, StringToDouble("0o10", ALLOW_OCTAL));
CHECK_EQ(63.0, StringToDouble("0o77", ALLOW_OCTAL));
}
TEST(ImplicitOctal) {
CHECK_EQ(0.0, StringToDouble("0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("00", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble("01", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(7.0, StringToDouble("07", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8.0, StringToDouble("010", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(63.0, StringToDouble("077", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0", ALLOW_HEX));
CHECK_EQ(0.0, StringToDouble("00", ALLOW_HEX));
CHECK_EQ(1.0, StringToDouble("01", ALLOW_HEX));
CHECK_EQ(7.0, StringToDouble("07", ALLOW_HEX));
CHECK_EQ(10.0, StringToDouble("010", ALLOW_HEX));
CHECK_EQ(77.0, StringToDouble("077", ALLOW_HEX));
const double x = 010000000000; // Power of 2, no rounding errors.
CHECK_EQ(x * x * x * x * x, StringToDouble("01"
"0000000000"
"0000000000"
"0000000000"
"0000000000"
"0000000000",
ALLOW_IMPLICIT_OCTAL));
}
TEST(Binary) {
CHECK_EQ(0.0, StringToDouble("0b0", ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0B0", ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(1.0, StringToDouble("0b1", ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(2.0, StringToDouble("0b10", ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(3.0, StringToDouble("0b11", ALLOW_BINARY | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0b0", ALLOW_BINARY));
CHECK_EQ(0.0, StringToDouble("0B0", ALLOW_BINARY));
CHECK_EQ(1.0, StringToDouble("0b1", ALLOW_BINARY));
CHECK_EQ(2.0, StringToDouble("0b10", ALLOW_BINARY));
CHECK_EQ(3.0, StringToDouble("0b11", ALLOW_BINARY));
}
TEST(MalformedOctal) {
CHECK_EQ(8.0, StringToDouble("08", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(81.0, StringToDouble("081", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(78.0, StringToDouble("078", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK(std::isnan(StringToDouble("07.7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK(std::isnan(StringToDouble("07.8", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK(std::isnan(StringToDouble("07e8", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK(std::isnan(StringToDouble("07e7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL)));
CHECK_EQ(8.7, StringToDouble("08.7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8e7, StringToDouble("08e7", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.001, StringToDouble("0.001", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.713, StringToDouble("0.713", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(8.0, StringToDouble("08", ALLOW_HEX));
CHECK_EQ(81.0, StringToDouble("081", ALLOW_HEX));
CHECK_EQ(78.0, StringToDouble("078", ALLOW_HEX));
CHECK_EQ(7.7, StringToDouble("07.7", ALLOW_HEX));
CHECK_EQ(7.8, StringToDouble("07.8", ALLOW_HEX));
CHECK_EQ(7e8, StringToDouble("07e8", ALLOW_HEX));
CHECK_EQ(7e7, StringToDouble("07e7", ALLOW_HEX));
CHECK_EQ(8.7, StringToDouble("08.7", ALLOW_HEX));
CHECK_EQ(8e7, StringToDouble("08e7", ALLOW_HEX));
CHECK_EQ(0.001, StringToDouble("0.001", ALLOW_HEX));
CHECK_EQ(0.713, StringToDouble("0.713", ALLOW_HEX));
}
TEST(TrailingJunk) {
CHECK_EQ(8.0, StringToDouble("8q", ALLOW_TRAILING_JUNK));
CHECK_EQ(63.0, StringToDouble("077qqq",
ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
CHECK_EQ(10.0,
StringToDouble("10e", ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
CHECK_EQ(10.0,
StringToDouble("10e-", ALLOW_IMPLICIT_OCTAL | ALLOW_TRAILING_JUNK));
}
TEST(NonStrDecimalLiteral) {
CHECK(std::isnan(
StringToDouble(" ", NO_FLAGS, std::numeric_limits<double>::quiet_NaN())));
CHECK(std::isnan(
StringToDouble("", NO_FLAGS, std::numeric_limits<double>::quiet_NaN())));
CHECK(std::isnan(
StringToDouble(" ", NO_FLAGS, std::numeric_limits<double>::quiet_NaN())));
CHECK_EQ(0.0, StringToDouble("", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble(" ", NO_FLAGS));
}
TEST(IntegerStrLiteral) {
CHECK_EQ(0.0, StringToDouble("0.0", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble("0", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble("00", NO_FLAGS));
CHECK_EQ(0.0, StringToDouble("000", NO_FLAGS));
CHECK_EQ(1.0, StringToDouble("1", NO_FLAGS));
CHECK_EQ(-1.0, StringToDouble("-1", NO_FLAGS));
CHECK_EQ(-1.0, StringToDouble(" -1 ", NO_FLAGS));
CHECK_EQ(1.0, StringToDouble(" +1 ", NO_FLAGS));
CHECK(std::isnan(StringToDouble(" - 1 ", NO_FLAGS)));
CHECK(std::isnan(StringToDouble(" + 1 ", NO_FLAGS)));
CHECK_EQ(0.0, StringToDouble("0e0", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0e1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0e-1", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0e-100000", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0e+100000", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
CHECK_EQ(0.0, StringToDouble("0.", ALLOW_HEX | ALLOW_IMPLICIT_OCTAL));
}
TEST(LongNumberStr) {
CHECK_EQ(1e10, StringToDouble("1"
"0000000000",
NO_FLAGS));
CHECK_EQ(1e20, StringToDouble("1"
"0000000000"
"0000000000",
NO_FLAGS));
CHECK_EQ(1e60, StringToDouble("1"
"0000000000"
"0000000000"
"0000000000"
"0000000000"
"0000000000"
"0000000000",
NO_FLAGS));
CHECK_EQ(1e-2, StringToDouble("."
"0"
"1",
NO_FLAGS));
CHECK_EQ(1e-11, StringToDouble("."
"0000000000"
"1",
NO_FLAGS));
CHECK_EQ(1e-21, StringToDouble("."
"0000000000"
"0000000000"
"1",
NO_FLAGS));
CHECK_EQ(1e-61, StringToDouble("."
"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("24414062505131250.0", NO_FLAGS));
// ... and z = (x + y) / 2 + delta is rounded to y.
CHECK_EQ(24414062505131252.0,
StringToDouble("24414062505131250.000000001", NO_FLAGS));
}
TEST(MaximumSignificantDigits) {
char num[] =
"4.4501477170144020250819966727949918635852426585926051135169509"
"122872622312493126406953054127118942431783801370080830523154578"
"251545303238277269592368457430440993619708911874715081505094180"
"604803751173783204118519353387964161152051487413083163272520124"
"606023105869053620631175265621765214646643181420505164043632222"
"668006474326056011713528291579642227455489682133472873831754840"
"341397809846934151055619529382191981473003234105366170879223151"
"087335413188049110555339027884856781219017754500629806224571029"
"581637117459456877330110324211689177656713705497387108207822477"
"584250967061891687062782163335299376138075114200886249979505279"
"101870966346394401564490729731565935244123171539810221213221201"
"847003580761626016356864581135848683152156368691976240370422601"
"6998291015625000000000000000000000000000000000e-308";
CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(num, NO_FLAGS));
// Changes the result of strtod (at least in glibc implementation).
num[sizeof(num) - 8] = '1';
CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(num, NO_FLAGS));
}
TEST(MinimumExponent) {
// 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(num, NO_FLAGS));
// Changes the result of strtod (at least in glibc implementation).
num[sizeof(num) - 8] = '1';
CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(num, NO_FLAGS));
}
TEST(MaximumExponent) {
char num[] = "0.16e309";
CHECK_EQ(1.59999999999999997765e+308, StringToDouble(num, NO_FLAGS));
}
TEST(ExponentNumberStr) {
CHECK_EQ(1e1, StringToDouble("1e1", NO_FLAGS));
CHECK_EQ(1e1, StringToDouble("1e+1", NO_FLAGS));
CHECK_EQ(1e-1, StringToDouble("1e-1", NO_FLAGS));
CHECK_EQ(1e100, StringToDouble("1e+100", NO_FLAGS));
CHECK_EQ(1e-100, StringToDouble("1e-100", NO_FLAGS));
CHECK_EQ(1e-106, StringToDouble(".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(*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, 1u);
}
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, 2u);
}
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));
}
}
}
TEST(TryNumberToSizeWithMaxSizePlusOne) {
i::Isolate* isolate = CcTest::i_isolate();
{
HandleScope scope(isolate);
// 1 << 64, larger than the limit of size_t.
double value = 18446744073709551616.0;
size_t result = 0;
Handle<HeapNumber> heap_number = isolate->factory()->NewHeapNumber(value);
CHECK(!TryNumberToSize(*heap_number, &result));
}
}
TEST(PositiveNumberToUint32) {
i::Isolate* isolate = CcTest::i_isolate();
i::Factory* factory = isolate->factory();
uint32_t max = std::numeric_limits<uint32_t>::max();
HandleScope scope(isolate);
// Test Smi conversions.
Handle<Object> number = handle(Smi::FromInt(0), isolate);
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = handle(Smi::FromInt(-1), isolate);
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = handle(Smi::FromInt(-1), isolate);
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = handle(Smi::FromInt(Smi::kMinValue), isolate);
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = handle(Smi::FromInt(Smi::kMaxValue), isolate);
CHECK_EQ(PositiveNumberToUint32(*number),
static_cast<uint32_t>(Smi::kMaxValue));
// Test Double conversions.
number = factory->NewHeapNumber(0.0);
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = factory->NewHeapNumber(0.999);
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = factory->NewHeapNumber(1.999);
CHECK_EQ(PositiveNumberToUint32(*number), 1u);
number = factory->NewHeapNumber(-12.0);
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = factory->NewHeapNumber(12000.0);
CHECK_EQ(PositiveNumberToUint32(*number), 12000u);
number = factory->NewHeapNumber(static_cast<double>(Smi::kMaxValue) + 1);
CHECK_EQ(PositiveNumberToUint32(*number),
static_cast<uint32_t>(Smi::kMaxValue) + 1);
number = factory->NewHeapNumber(max);
CHECK_EQ(PositiveNumberToUint32(*number), max);
number = factory->NewHeapNumber(static_cast<double>(max) * 1000);
CHECK_EQ(PositiveNumberToUint32(*number), max);
number = factory->NewHeapNumber(std::numeric_limits<double>::max());
CHECK_EQ(PositiveNumberToUint32(*number), max);
number = factory->NewHeapNumber(std::numeric_limits<double>::infinity());
CHECK_EQ(PositiveNumberToUint32(*number), max);
number =
factory->NewHeapNumber(-1.0 * std::numeric_limits<double>::infinity());
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
number = factory->NewHeapNumber(std::nan(""));
CHECK_EQ(PositiveNumberToUint32(*number), 0u);
}
} // namespace internal
} // namespace v8
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