Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 0 insertions, 310 deletions

diff --git a/JavaScriptCore/runtime/NumberPrototype.cpp b/JavaScriptCore/runtime/NumberPrototype.cpp
deleted file mode 100644
index 0b86c00..0000000
--- a/JavaScriptCore/runtime/NumberPrototype.cpp
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- *  Copyright (C) 1999-2000,2003 Harri Porten (porten@kde.org)
- *  Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
- *  USA
- *
- */
-
-#include "config.h"
-#include "NumberPrototype.h"
-
-#include "Error.h"
-#include "JSFunction.h"
-#include "JSString.h"
-#include "Operations.h"
-#include "PrototypeFunction.h"
-#include "dtoa.h"
-#include <wtf/Assertions.h>
-#include <wtf/DecimalNumber.h>
-#include <wtf/MathExtras.h>
-#include <wtf/Vector.h>
-
-namespace JSC {
-
-ASSERT_CLASS_FITS_IN_CELL(NumberPrototype);
-
-static EncodedJSValue JSC_HOST_CALL numberProtoFuncToString(ExecState*);
-static EncodedJSValue JSC_HOST_CALL numberProtoFuncToLocaleString(ExecState*);
-static EncodedJSValue JSC_HOST_CALL numberProtoFuncValueOf(ExecState*);
-static EncodedJSValue JSC_HOST_CALL numberProtoFuncToFixed(ExecState*);
-static EncodedJSValue JSC_HOST_CALL numberProtoFuncToExponential(ExecState*);
-static EncodedJSValue JSC_HOST_CALL numberProtoFuncToPrecision(ExecState*);
-
-// ECMA 15.7.4
-
-NumberPrototype::NumberPrototype(ExecState* exec, JSGlobalObject* globalObject, NonNullPassRefPtr<Structure> structure, Structure* prototypeFunctionStructure)
-    : NumberObject(structure)
-{
-    setInternalValue(jsNumber(0));
-
-    // The constructor will be added later, after NumberConstructor has been constructed
-
-    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, globalObject, prototypeFunctionStructure, 1, exec->propertyNames().toString, numberProtoFuncToString), DontEnum);
-    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, globalObject, prototypeFunctionStructure, 0, exec->propertyNames().toLocaleString, numberProtoFuncToLocaleString), DontEnum);
-    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, globalObject, prototypeFunctionStructure, 0, exec->propertyNames().valueOf, numberProtoFuncValueOf), DontEnum);
-    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, globalObject, prototypeFunctionStructure, 1, exec->propertyNames().toFixed, numberProtoFuncToFixed), DontEnum);
-    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, globalObject, prototypeFunctionStructure, 1, exec->propertyNames().toExponential, numberProtoFuncToExponential), DontEnum);
-    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, globalObject, prototypeFunctionStructure, 1, exec->propertyNames().toPrecision, numberProtoFuncToPrecision), DontEnum);
-}
-
-// ------------------------------ Functions ---------------------------
-
-// ECMA 15.7.4.2 - 15.7.4.7
-
-static ALWAYS_INLINE bool toThisNumber(JSValue thisValue, double &x)
-{
-    JSValue v = thisValue.getJSNumber();
-    if (UNLIKELY(!v))
-        return false;
-    x = v.uncheckedGetNumber();
-    return true;
-}
-
-static ALWAYS_INLINE bool getIntegerArgumentInRange(ExecState* exec, int low, int high, int& result, bool& isUndefined)
-{
-    result = 0;
-    isUndefined = false;
-
-    JSValue argument0 = exec->argument(0);
-    if (argument0.isUndefined()) {
-        isUndefined = true;
-        return true;
-    }
-
-    double asDouble = argument0.toInteger(exec);
-    if (asDouble < low || asDouble > high)
-        return false;
-
-    result = static_cast<int>(asDouble);
-    return true;
-}
-
-// toExponential converts a number to a string, always formatting as an expoential.
-// This method takes an optional argument specifying a number of *decimal places*
-// to round the significand to (or, put another way, this method optionally rounds
-// to argument-plus-one significant figures).
-EncodedJSValue JSC_HOST_CALL numberProtoFuncToExponential(ExecState* exec)
-{
-    // Get x (the double value of this, which should be a Number).
-    double x;
-    if (!toThisNumber(exec->hostThisValue(), x))
-        return throwVMTypeError(exec);
-
-    // Get the argument. 
-    int decimalPlacesInExponent;
-    bool isUndefined;
-    if (!getIntegerArgumentInRange(exec, 0, 20, decimalPlacesInExponent, isUndefined))
-        return throwVMError(exec, createRangeError(exec, "toExponential() argument must be between 0 and 20"));
-
-    // Handle NaN and Infinity.
-    if (isnan(x) || isinf(x))
-        return JSValue::encode(jsString(exec, UString::number(x)));
-
-    // Round if the argument is not undefined, always format as exponential.
-    NumberToStringBuffer buffer;
-    unsigned length = isUndefined
-        ? DecimalNumber(x).toStringExponential(buffer, WTF::NumberToStringBufferLength)
-        : DecimalNumber(x, RoundingSignificantFigures, decimalPlacesInExponent + 1).toStringExponential(buffer, WTF::NumberToStringBufferLength);
-
-    return JSValue::encode(jsString(exec, UString(buffer, length)));
-}
-
-// toFixed converts a number to a string, always formatting as an a decimal fraction.
-// This method takes an argument specifying a number of decimal places to round the
-// significand to. However when converting large values (1e+21 and above) this
-// method will instead fallback to calling ToString. 
-EncodedJSValue JSC_HOST_CALL numberProtoFuncToFixed(ExecState* exec)
-{
-    // Get x (the double value of this, which should be a Number).
-    JSValue thisValue = exec->hostThisValue();
-    JSValue v = thisValue.getJSNumber();
-    if (!v)
-        return throwVMTypeError(exec);
-    double x = v.uncheckedGetNumber();
-
-    // Get the argument. 
-    int decimalPlaces;
-    bool isUndefined; // This is ignored; undefined treated as 0.
-    if (!getIntegerArgumentInRange(exec, 0, 20, decimalPlaces, isUndefined))
-        return throwVMError(exec, createRangeError(exec, "toFixed() argument must be between 0 and 20"));
-
-    // 15.7.4.5.7 states "If x >= 10^21, then let m = ToString(x)"
-    // This also covers Ininity, and structure the check so that NaN
-    // values are also handled by numberToString
-    if (!(fabs(x) < 1e+21))
-        return JSValue::encode(jsString(exec, UString::number(x)));
-
-    // The check above will return false for NaN or Infinity, these will be
-    // handled by numberToString.
-    ASSERT(!isnan(x) && !isinf(x));
-
-    // Convert to decimal with rounding, and format as decimal.
-    NumberToStringBuffer buffer;
-    unsigned length = DecimalNumber(x, RoundingDecimalPlaces, decimalPlaces).toStringDecimal(buffer, WTF::NumberToStringBufferLength);
-    return JSValue::encode(jsString(exec, UString(buffer, length)));
-}
-
-// toPrecision converts a number to a string, takeing an argument specifying a
-// number of significant figures to round the significand to. For positive
-// exponent, all values that can be represented using a decimal fraction will
-// be, e.g. when rounding to 3 s.f. any value up to 999 will be formated as a
-// decimal, whilst 1000 is converted to the exponential representation 1.00e+3.
-// For negative exponents values >= 1e-6 are formated as decimal fractions,
-// with smaller values converted to exponential representation.
-EncodedJSValue JSC_HOST_CALL numberProtoFuncToPrecision(ExecState* exec)
-{
-    // Get x (the double value of this, which should be a Number).
-    JSValue thisValue = exec->hostThisValue();
-    JSValue v = thisValue.getJSNumber();
-    if (!v)
-        return throwVMTypeError(exec);
-    double x = v.uncheckedGetNumber();
-
-    // Get the argument. 
-    int significantFigures;
-    bool isUndefined;
-    if (!getIntegerArgumentInRange(exec, 1, 21, significantFigures, isUndefined))
-        return throwVMError(exec, createRangeError(exec, "toPrecision() argument must be between 1 and 21"));
-
-    // To precision called with no argument is treated as ToString.
-    if (isUndefined)
-        return JSValue::encode(jsString(exec, UString::number(x)));
-
-    // Handle NaN and Infinity.
-    if (isnan(x) || isinf(x))
-        return JSValue::encode(jsString(exec, UString::number(x)));
-
-    // Convert to decimal with rounding.
-    DecimalNumber number(x, RoundingSignificantFigures, significantFigures);
-    // If number is in the range 1e-6 <= x < pow(10, significantFigures) then format
-    // as decimal. Otherwise, format the number as an exponential.  Decimal format
-    // demands a minimum of (exponent + 1) digits to represent a number, for example
-    // 1234 (1.234e+3) requires 4 digits. (See ECMA-262 15.7.4.7.10.c)
-    NumberToStringBuffer buffer;
-    unsigned length = number.exponent() >= -6 && number.exponent() < significantFigures
-        ? number.toStringDecimal(buffer, WTF::NumberToStringBufferLength)
-        : number.toStringExponential(buffer, WTF::NumberToStringBufferLength);
-    return JSValue::encode(jsString(exec, UString(buffer, length)));
-}
-
-EncodedJSValue JSC_HOST_CALL numberProtoFuncToString(ExecState* exec)
-{
-    JSValue thisValue = exec->hostThisValue();
-    JSValue v = thisValue.getJSNumber();
-    if (!v)
-        return throwVMTypeError(exec);
-
-    JSValue radixValue = exec->argument(0);
-    int radix;
-    if (radixValue.isInt32())
-        radix = radixValue.asInt32();
-    else if (radixValue.isUndefined())
-        radix = 10;
-    else
-        radix = static_cast<int>(radixValue.toInteger(exec)); // nan -> 0
-
-    if (radix == 10)
-        return JSValue::encode(jsString(exec, v.toString(exec)));
-
-    static const char* const digits = "0123456789abcdefghijklmnopqrstuvwxyz";
-
-    // Fast path for number to character conversion.
-    if (radix == 36) {
-        if (v.isInt32()) {
-            int x = v.asInt32();
-            if (static_cast<unsigned>(x) < 36) { // Exclude negatives
-                JSGlobalData* globalData = &exec->globalData();
-                return JSValue::encode(globalData->smallStrings.singleCharacterString(globalData, digits[x]));
-            }
-        }
-    }
-
-    if (radix < 2 || radix > 36)
-        return throwVMError(exec, createRangeError(exec, "toString() radix argument must be between 2 and 36"));
-
-    // INT_MAX results in 1024 characters left of the dot with radix 2
-    // give the same space on the right side. safety checks are in place
-    // unless someone finds a precise rule.
-    char s[2048 + 3];
-    const char* lastCharInString = s + sizeof(s) - 1;
-    double x = v.uncheckedGetNumber();
-    if (isnan(x) || isinf(x))
-        return JSValue::encode(jsString(exec, UString::number(x)));
-
-    bool isNegative = x < 0.0;
-    if (isNegative)
-        x = -x;
-
-    double integerPart = floor(x);
-    char* decimalPoint = s + sizeof(s) / 2;
-
-    // convert integer portion
-    char* p = decimalPoint;
-    double d = integerPart;
-    do {
-        int remainderDigit = static_cast<int>(fmod(d, radix));
-        *--p = digits[remainderDigit];
-        d /= radix;
-    } while ((d <= -1.0 || d >= 1.0) && s < p);
-
-    if (isNegative)
-        *--p = '-';
-    char* startOfResultString = p;
-    ASSERT(s <= startOfResultString);
-
-    d = x - integerPart;
-    p = decimalPoint;
-    const double epsilon = 0.001; // TODO: guessed. base on radix ?
-    bool hasFractionalPart = (d < -epsilon || d > epsilon);
-    if (hasFractionalPart) {
-        *p++ = '.';
-        do {
-            d *= radix;
-            const int digit = static_cast<int>(d);
-            *p++ = digits[digit];
-            d -= digit;
-        } while ((d < -epsilon || d > epsilon) && p < lastCharInString);
-    }
-    *p = '\0';
-    ASSERT(p < s + sizeof(s));
-
-    return JSValue::encode(jsString(exec, startOfResultString));
-}
-
-EncodedJSValue JSC_HOST_CALL numberProtoFuncToLocaleString(ExecState* exec)
-{
-    JSValue thisValue = exec->hostThisValue();
-    // FIXME: Not implemented yet.
-
-    JSValue v = thisValue.getJSNumber();
-    if (!v)
-        return throwVMTypeError(exec);
-
-    return JSValue::encode(jsString(exec, v.toString(exec)));
-}
-
-EncodedJSValue JSC_HOST_CALL numberProtoFuncValueOf(ExecState* exec)
-{
-    JSValue thisValue = exec->hostThisValue();
-    JSValue v = thisValue.getJSNumber();
-    if (!v)
-        return throwVMTypeError(exec);
-
-    return JSValue::encode(v);
-}
-
-} // namespace JSC