#include "CallFrame.h"
#include "Interpreter.h"
+#include "JSFunction.h"
#include "JSGlobalObject.h"
#include "JSString.h"
#include "JSStringBuilder.h"
#include "Lexer.h"
#include "LiteralParser.h"
#include "Nodes.h"
+#include "JSCInlines.h"
#include "Parser.h"
-#include "UStringBuilder.h"
+#include "StackVisitor.h"
#include <wtf/dtoa.h>
#include <stdio.h>
#include <stdlib.h>
#include <wtf/ASCIICType.h>
#include <wtf/Assertions.h>
+#include <wtf/HexNumber.h>
#include <wtf/MathExtras.h>
#include <wtf/StringExtras.h>
+#include <wtf/text/StringBuilder.h>
#include <wtf/unicode/UTF8.h>
using namespace WTF;
namespace JSC {
-static JSValue encode(ExecState* exec, const char* doNotEscape)
+template<unsigned charactersCount>
+static Bitmap<256> makeCharacterBitmap(const char (&characters)[charactersCount])
{
- CString cstr = exec->argument(0).toString(exec)->value(exec).utf8(true);
+ Bitmap<256> bitmap;
+ for (unsigned i = 0; i < charactersCount; ++i)
+ bitmap.set(characters[i]);
+ return bitmap;
+}
+
+static JSValue encode(ExecState* exec, const Bitmap<256>& doNotEscape)
+{
+ CString cstr = exec->argument(0).toString(exec)->view(exec).get().utf8(StrictConversion);
if (!cstr.data())
- return throwError(exec, createURIError(exec, "String contained an illegal UTF-16 sequence."));
+ return exec->vm().throwException(exec, createURIError(exec, ASCIILiteral("String contained an illegal UTF-16 sequence.")));
JSStringBuilder builder;
const char* p = cstr.data();
for (size_t k = 0; k < cstr.length(); k++, p++) {
char c = *p;
- if (c && strchr(doNotEscape, c))
- builder.append(c);
+ if (c && doNotEscape.get(static_cast<LChar>(c)))
+ builder.append(static_cast<LChar>(c));
else {
- char tmp[4];
- snprintf(tmp, sizeof(tmp), "%%%02X", static_cast<unsigned char>(c));
- builder.append(tmp);
+ builder.append(static_cast<LChar>('%'));
+ appendByteAsHex(c, builder);
}
}
return builder.build(exec);
template <typename CharType>
ALWAYS_INLINE
-static JSValue decode(ExecState* exec, const CharType* characters, int length, const char* doNotUnescape, bool strict)
+static JSValue decode(ExecState* exec, const CharType* characters, int length, const Bitmap<256>& doNotUnescape, bool strict)
{
JSStringBuilder builder;
int k = 0;
}
if (charLen == 0) {
if (strict)
- return throwError(exec, createURIError(exec, "URI error"));
+ return exec->vm().throwException(exec, createURIError(exec, ASCIILiteral("URI error")));
// The only case where we don't use "strict" mode is the "unescape" function.
// For that, it's good to support the wonky "%u" syntax for compatibility with WinIE.
if (k <= length - 6 && p[1] == 'u'
u = Lexer<UChar>::convertUnicode(p[2], p[3], p[4], p[5]);
}
}
- if (charLen && (u == 0 || u >= 128 || !strchr(doNotUnescape, u))) {
- if (u < 256)
- builder.append(static_cast<LChar>(u));
- else
- builder.append(u);
+ if (charLen && (u == 0 || u >= 128 || !doNotUnescape.get(static_cast<LChar>(u)))) {
+ builder.append(u);
k += charLen;
continue;
}
return builder.build(exec);
}
-static JSValue decode(ExecState* exec, const char* doNotUnescape, bool strict)
+static JSValue decode(ExecState* exec, const Bitmap<256>& doNotUnescape, bool strict)
{
- JSStringBuilder builder;
- UString str = exec->argument(0).toString(exec)->value(exec);
+ StringView str = exec->argument(0).toString(exec)->view(exec);
if (str.is8Bit())
return decode(exec, str.characters8(), str.length(), doNotUnescape, strict);
case 0x000D:
case 0x0020:
case 0x00A0:
+ case 0x180E: // This character used to be in Zs category before Unicode 6.3, and EcmaScript says that we should keep treating it as such.
case 0x2028:
case 0x2029:
case 0xFEFF:
return true;
default:
- return c > 0xff && isSeparatorSpace(c);
+ return c > 0xFF && u_charType(c) == U_SPACE_SEPARATOR;
}
}
return digit;
}
-double parseIntOverflow(const LChar* s, int length, int radix)
+double parseIntOverflow(const LChar* s, unsigned length, int radix)
{
double number = 0.0;
double radixMultiplier = 1.0;
return number;
}
-double parseIntOverflow(const UChar* s, int length, int radix)
+static double parseIntOverflow(const UChar* s, unsigned length, int radix)
{
double number = 0.0;
double radixMultiplier = 1.0;
return number;
}
+static double parseIntOverflow(StringView string, int radix)
+{
+ if (string.is8Bit())
+ return parseIntOverflow(string.characters8(), string.length(), radix);
+ return parseIntOverflow(string.characters16(), string.length(), radix);
+}
+
// ES5.1 15.1.2.2
template <typename CharType>
ALWAYS_INLINE
-static double parseInt(const UString& s, const CharType* data, int radix)
+static double parseInt(StringView s, const CharType* data, int radix)
{
// 1. Let inputString be ToString(string).
// 2. Let S be a newly created substring of inputString consisting of the first character that is not a
// 8.a If R < 2 or R > 36, then return NaN.
if (radix < 2 || radix > 36)
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
// 13. Let mathInt be the mathematical integer value that is represented by Z in radix-R notation, using the letters
// A-Z and a-z for digits with values 10 through 35. (However, if R is 10 and Z contains more than 20 significant
// 12. If Z is empty, return NaN.
if (!sawDigit)
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
// Alternate code path for certain large numbers.
if (number >= mantissaOverflowLowerBound) {
if (radix == 10) {
size_t parsedLength;
- number = parseDouble(s.characters() + firstDigitPosition, p - firstDigitPosition, parsedLength);
+ number = parseDouble(s.substring(firstDigitPosition, p - firstDigitPosition), parsedLength);
} else if (radix == 2 || radix == 4 || radix == 8 || radix == 16 || radix == 32)
- number = parseIntOverflow(s.substringSharingImpl(firstDigitPosition, p - firstDigitPosition).utf8().data(), p - firstDigitPosition, radix);
+ number = parseIntOverflow(s.substring(firstDigitPosition, p - firstDigitPosition), radix);
}
// 15. Return sign x number.
return sign * number;
}
-static double parseInt(const UString& s, int radix)
+static double parseInt(StringView s, int radix)
{
if (s.is8Bit())
return parseInt(s, s.characters8(), radix);
&& data[7] == 'y';
}
-// See ecma-262 9.3.1
+// See ecma-262 6th 11.8.3
+template <typename CharType>
+static double jsBinaryIntegerLiteral(const CharType*& data, const CharType* end)
+{
+ // Binary number.
+ data += 2;
+ const CharType* firstDigitPosition = data;
+ double number = 0;
+ while (true) {
+ number = number * 2 + (*data - '0');
+ ++data;
+ if (data == end)
+ break;
+ if (!isASCIIBinaryDigit(*data))
+ break;
+ }
+ if (number >= mantissaOverflowLowerBound)
+ number = parseIntOverflow(firstDigitPosition, data - firstDigitPosition, 2);
+
+ return number;
+}
+
+// See ecma-262 6th 11.8.3
+template <typename CharType>
+static double jsOctalIntegerLiteral(const CharType*& data, const CharType* end)
+{
+ // Octal number.
+ data += 2;
+ const CharType* firstDigitPosition = data;
+ double number = 0;
+ while (true) {
+ number = number * 8 + (*data - '0');
+ ++data;
+ if (data == end)
+ break;
+ if (!isASCIIOctalDigit(*data))
+ break;
+ }
+ if (number >= mantissaOverflowLowerBound)
+ number = parseIntOverflow(firstDigitPosition, data - firstDigitPosition, 8);
+
+ return number;
+}
+
+// See ecma-262 6th 11.8.3
template <typename CharType>
static double jsHexIntegerLiteral(const CharType*& data, const CharType* end)
{
return number;
}
-// See ecma-262 9.3.1
+// See ecma-262 6th 11.8.3
template <typename CharType>
static double jsStrDecimalLiteral(const CharType*& data, const CharType* end)
{
- ASSERT(data < end);
+ RELEASE_ASSERT(data < end);
size_t parsedLength;
double number = parseDouble(data, end - data, parsedLength);
}
// Not a number.
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
}
template <typename CharType>
return 0.0;
double number;
- if (characters[0] == '0' && characters + 2 < endCharacters && (characters[1] | 0x20) == 'x' && isASCIIHexDigit(characters[2]))
- number = jsHexIntegerLiteral(characters, endCharacters);
- else
+ if (characters[0] == '0' && characters + 2 < endCharacters) {
+ if ((characters[1] | 0x20) == 'x' && isASCIIHexDigit(characters[2]))
+ number = jsHexIntegerLiteral(characters, endCharacters);
+ else if ((characters[1] | 0x20) == 'o' && isASCIIOctalDigit(characters[2]))
+ number = jsOctalIntegerLiteral(characters, endCharacters);
+ else if ((characters[1] | 0x20) == 'b' && isASCIIBinaryDigit(characters[2]))
+ number = jsBinaryIntegerLiteral(characters, endCharacters);
+ else
+ number = jsStrDecimalLiteral(characters, endCharacters);
+ } else
number = jsStrDecimalLiteral(characters, endCharacters);
// Allow trailing white space.
break;
}
if (characters != endCharacters)
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
return number;
}
-// See ecma-262 9.3.1
-double jsToNumber(const UString& s)
+// See ecma-262 6th 11.8.3
+double jsToNumber(StringView s)
{
unsigned size = s.length();
return c - '0';
if (isStrWhiteSpace(c))
return 0;
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
}
if (s.is8Bit())
return toDouble(s.characters16(), size);
}
-static double parseFloat(const UString& s)
+static double parseFloat(StringView s)
{
unsigned size = s.length();
UChar c = s[0];
if (isASCIIDigit(c))
return c - '0';
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
}
if (s.is8Bit()) {
// Empty string.
if (data == end)
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
return jsStrDecimalLiteral(data, end);
}
// Empty string.
if (data == end)
- return std::numeric_limits<double>::quiet_NaN();
+ return PNaN;
return jsStrDecimalLiteral(data, end);
}
EncodedJSValue JSC_HOST_CALL globalFuncEval(ExecState* exec)
{
- JSObject* thisObject = exec->hostThisValue().toThisObject(exec);
- JSObject* unwrappedObject = thisObject->unwrappedObject();
- if (!unwrappedObject->isGlobalObject() || jsCast<JSGlobalObject*>(unwrappedObject)->evalFunction() != exec->callee())
- return throwVMError(exec, createEvalError(exec, "The \"this\" value passed to eval must be the global object from which eval originated"));
-
JSValue x = exec->argument(0);
if (!x.isString())
return JSValue::encode(x);
- UString s = x.toString(exec)->value(exec);
+ String s = x.toString(exec)->value(exec);
if (s.is8Bit()) {
LiteralParser<LChar> preparser(exec, s.characters8(), s.length(), NonStrictJSON);
return JSValue::encode(parsedObject);
}
- EvalExecutable* eval = EvalExecutable::create(exec, makeSource(s), false);
- JSObject* error = eval->compile(exec, jsCast<JSGlobalObject*>(unwrappedObject)->globalScopeChain());
- if (error)
- return throwVMError(exec, error);
+ JSGlobalObject* calleeGlobalObject = exec->callee()->globalObject();
+ EvalExecutable* eval = EvalExecutable::create(exec, makeSource(s), false, ThisTDZMode::CheckIfNeeded);
+ if (!eval)
+ return JSValue::encode(jsUndefined());
- return JSValue::encode(exec->interpreter()->execute(eval, exec, thisObject, jsCast<JSGlobalObject*>(unwrappedObject)->globalScopeChain()));
+ return JSValue::encode(exec->interpreter()->execute(eval, exec, calleeGlobalObject->globalThis(), calleeGlobalObject));
}
EncodedJSValue JSC_HOST_CALL globalFuncParseInt(ExecState* exec)
}
// If ToString throws, we shouldn't call ToInt32.
- UString s = value.toString(exec)->value(exec);
+ StringView s = value.toString(exec)->view(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
EncodedJSValue JSC_HOST_CALL globalFuncParseFloat(ExecState* exec)
{
- return JSValue::encode(jsNumber(parseFloat(exec->argument(0).toString(exec)->value(exec))));
+ return JSValue::encode(jsNumber(parseFloat(exec->argument(0).toString(exec)->view(exec))));
}
EncodedJSValue JSC_HOST_CALL globalFuncIsNaN(ExecState* exec)
{
- return JSValue::encode(jsBoolean(isnan(exec->argument(0).toNumber(exec))));
+ return JSValue::encode(jsBoolean(std::isnan(exec->argument(0).toNumber(exec))));
}
EncodedJSValue JSC_HOST_CALL globalFuncIsFinite(ExecState* exec)
{
double n = exec->argument(0).toNumber(exec);
- return JSValue::encode(jsBoolean(isfinite(n)));
+ return JSValue::encode(jsBoolean(std::isfinite(n)));
}
EncodedJSValue JSC_HOST_CALL globalFuncDecodeURI(ExecState* exec)
{
- static const char do_not_unescape_when_decoding_URI[] =
- "#$&+,/:;=?@";
+ static Bitmap<256> doNotUnescapeWhenDecodingURI = makeCharacterBitmap(
+ "#$&+,/:;=?@"
+ );
- return JSValue::encode(decode(exec, do_not_unescape_when_decoding_URI, true));
+ return JSValue::encode(decode(exec, doNotUnescapeWhenDecodingURI, true));
}
EncodedJSValue JSC_HOST_CALL globalFuncDecodeURIComponent(ExecState* exec)
{
- return JSValue::encode(decode(exec, "", true));
+ static Bitmap<256> emptyBitmap;
+ return JSValue::encode(decode(exec, emptyBitmap, true));
}
EncodedJSValue JSC_HOST_CALL globalFuncEncodeURI(ExecState* exec)
{
- static const char do_not_escape_when_encoding_URI[] =
+ static Bitmap<256> doNotEscapeWhenEncodingURI = makeCharacterBitmap(
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789"
- "!#$&'()*+,-./:;=?@_~";
+ "!#$&'()*+,-./:;=?@_~"
+ );
- return JSValue::encode(encode(exec, do_not_escape_when_encoding_URI));
+ return JSValue::encode(encode(exec, doNotEscapeWhenEncodingURI));
}
EncodedJSValue JSC_HOST_CALL globalFuncEncodeURIComponent(ExecState* exec)
{
- static const char do_not_escape_when_encoding_URI_component[] =
+ static Bitmap<256> doNotEscapeWhenEncodingURIComponent = makeCharacterBitmap(
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789"
- "!'()*-._~";
+ "!'()*-._~"
+ );
- return JSValue::encode(encode(exec, do_not_escape_when_encoding_URI_component));
+ return JSValue::encode(encode(exec, doNotEscapeWhenEncodingURIComponent));
}
EncodedJSValue JSC_HOST_CALL globalFuncEscape(ExecState* exec)
{
- static const char do_not_escape[] =
+ static Bitmap<256> doNotEscape = makeCharacterBitmap(
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789"
- "*+-./@_";
+ "*+-./@_"
+ );
JSStringBuilder builder;
- UString str = exec->argument(0).toString(exec)->value(exec);
+ StringView str = exec->argument(0).toString(exec)->view(exec);
if (str.is8Bit()) {
const LChar* c = str.characters8();
for (unsigned k = 0; k < str.length(); k++, c++) {
int u = c[0];
- if (u && strchr(do_not_escape, static_cast<char>(u)))
- builder.append(c, 1);
+ if (u && doNotEscape.get(static_cast<LChar>(u)))
+ builder.append(*c);
else {
- char tmp[4];
- snprintf(tmp, sizeof(tmp), "%%%02X", u);
- builder.append(tmp);
+ builder.append(static_cast<LChar>('%'));
+ appendByteAsHex(static_cast<LChar>(u), builder);
}
}
for (unsigned k = 0; k < str.length(); k++, c++) {
int u = c[0];
if (u > 255) {
- char tmp[7];
- snprintf(tmp, sizeof(tmp), "%%u%04X", u);
- builder.append(tmp);
- } else if (u != 0 && strchr(do_not_escape, static_cast<char>(u)))
- builder.append(c, 1);
+ builder.append(static_cast<LChar>('%'));
+ builder.append(static_cast<LChar>('u'));
+ appendByteAsHex(u >> 8, builder);
+ appendByteAsHex(u & 0xFF, builder);
+ } else if (u != 0 && doNotEscape.get(static_cast<LChar>(u)))
+ builder.append(*c);
else {
- char tmp[4];
- snprintf(tmp, sizeof(tmp), "%%%02X", u);
- builder.append(tmp);
+ builder.append(static_cast<LChar>('%'));
+ appendByteAsHex(u, builder);
}
}
EncodedJSValue JSC_HOST_CALL globalFuncUnescape(ExecState* exec)
{
- UStringBuilder builder;
- UString str = exec->argument(0).toString(exec)->value(exec);
+ StringBuilder builder;
+ StringView str = exec->argument(0).toString(exec)->view(exec);
int k = 0;
int len = str.length();
}
}
- return JSValue::encode(jsString(exec, builder.toUString()));
+ return JSValue::encode(jsString(exec, builder.toString()));
}
EncodedJSValue JSC_HOST_CALL globalFuncThrowTypeError(ExecState* exec)
return throwVMTypeError(exec);
}
+class GlobalFuncProtoGetterFunctor {
+public:
+ GlobalFuncProtoGetterFunctor(JSObject* thisObject)
+ : m_hasSkippedFirstFrame(false)
+ , m_thisObject(thisObject)
+ , m_result(JSValue::encode(jsUndefined()))
+ {
+ }
+
+ EncodedJSValue result() { return m_result; }
+
+ StackVisitor::Status operator()(StackVisitor& visitor)
+ {
+ if (!m_hasSkippedFirstFrame) {
+ m_hasSkippedFirstFrame = true;
+ return StackVisitor::Continue;
+ }
+
+ if (m_thisObject->allowsAccessFrom(visitor->callFrame()))
+ m_result = JSValue::encode(m_thisObject->prototype());
+
+ return StackVisitor::Done;
+ }
+
+private:
+ bool m_hasSkippedFirstFrame;
+ JSObject* m_thisObject;
+ EncodedJSValue m_result;
+};
+
EncodedJSValue JSC_HOST_CALL globalFuncProtoGetter(ExecState* exec)
{
- if (!exec->thisValue().isObject())
+ if (exec->thisValue().isUndefinedOrNull())
+ return throwVMError(exec, createTypeError(exec, "Can't convert undefined or null to object"));
+
+ JSObject* thisObject = jsDynamicCast<JSObject*>(exec->thisValue().toThis(exec, NotStrictMode));
+
+ if (!thisObject)
return JSValue::encode(exec->thisValue().synthesizePrototype(exec));
- JSObject* thisObject = asObject(exec->thisValue());
- if (!thisObject->allowsAccessFrom(exec->trueCallerFrame()))
- return JSValue::encode(jsUndefined());
+ GlobalFuncProtoGetterFunctor functor(thisObject);
+ exec->iterate(functor);
+ return functor.result();
+}
+
+class GlobalFuncProtoSetterFunctor {
+public:
+ GlobalFuncProtoSetterFunctor(JSObject* thisObject)
+ : m_hasSkippedFirstFrame(false)
+ , m_allowsAccess(false)
+ , m_thisObject(thisObject)
+ {
+ }
+
+ bool allowsAccess() const { return m_allowsAccess; }
+
+ StackVisitor::Status operator()(StackVisitor& visitor)
+ {
+ if (!m_hasSkippedFirstFrame) {
+ m_hasSkippedFirstFrame = true;
+ return StackVisitor::Continue;
+ }
+
+ m_allowsAccess = m_thisObject->allowsAccessFrom(visitor->callFrame());
+ return StackVisitor::Done;
+ }
- return JSValue::encode(thisObject->prototype());
+private:
+ bool m_hasSkippedFirstFrame;
+ bool m_allowsAccess;
+ JSObject* m_thisObject;
+};
+
+bool checkProtoSetterAccessAllowed(ExecState* exec, JSObject* object)
+{
+ GlobalFuncProtoSetterFunctor functor(object);
+ exec->iterate(functor);
+ return functor.allowsAccess();
}
EncodedJSValue JSC_HOST_CALL globalFuncProtoSetter(ExecState* exec)
{
+ if (exec->thisValue().isUndefinedOrNull())
+ return throwVMError(exec, createTypeError(exec, "Can't convert undefined or null to object"));
+
JSValue value = exec->argument(0);
+ JSObject* thisObject = jsDynamicCast<JSObject*>(exec->thisValue().toThis(exec, NotStrictMode));
+
// Setting __proto__ of a primitive should have no effect.
- if (!exec->thisValue().isObject())
+ if (!thisObject)
return JSValue::encode(jsUndefined());
- JSObject* thisObject = asObject(exec->thisValue());
- if (!thisObject->allowsAccessFrom(exec->trueCallerFrame()))
+ if (!checkProtoSetterAccessAllowed(exec, thisObject))
return JSValue::encode(jsUndefined());
// Setting __proto__ to a non-object, non-null value is silently ignored to match Mozilla.
if (!thisObject->isExtensible())
return throwVMError(exec, createTypeError(exec, StrictModeReadonlyPropertyWriteError));
- if (!thisObject->setPrototypeWithCycleCheck(exec->globalData(), value))
- throwError(exec, createError(exec, "cyclic __proto__ value"));
+ if (!thisObject->setPrototypeWithCycleCheck(exec, value))
+ exec->vm().throwException(exec, createError(exec, ASCIILiteral("cyclic __proto__ value")));
+ return JSValue::encode(jsUndefined());
+}
+
+EncodedJSValue JSC_HOST_CALL globalFuncBuiltinLog(ExecState* exec)
+{
+ dataLog(exec->argument(0).toWTFString(exec), "\n");
return JSValue::encode(jsUndefined());
}
projects / apple / javascriptcore.git / blobdiff