| // 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/execution/isolate.h" |
| #include "src/heap/factory-inl.h" |
| #include "src/init/v8.h" |
| #include "src/numbers/conversions.h" |
| #include "src/objects/heap-number-inl.h" |
| #include "src/objects/objects.h" |
| #include "src/objects/smi.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 |
