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v8/test/cctest/test-conversions.cc
dcarney 97981d9413 fix special index parsing 
R=verwaest@chromium.org,dslomov@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1038313004

Cr-Commit-Position: refs/heads/master@{#27518}
2015-03-30 11:41:15 +00:00

409 lines
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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/v8.h"
#include "src/base/platform/platform.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");
}
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