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[v8natives.js] updating comments to ES6

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Review URL: https://codereview.chromium.org/1512903002

Cr-Commit-Position: refs/heads/master@{#32746}
This commit is contained in:
cbruni 2015-12-10 02:42:46 -08:00 committed by Commit bot
parent cdafea2011
commit 40817d2242
4 changed files with 39 additions and 38 deletions
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2
src/conversions-inl.h
View File

@ -294,7 +294,7 @@ double InternalStringToIntDouble(UnicodeCache* unicode_cache,
return std::ldexp(static_cast<double>(negative ? -number : number), exponent);
}
// ES6 18.2.5 parseInt(string, radix)
template <class Iterator, class EndMark>
double InternalStringToInt(UnicodeCache* unicode_cache,
Iterator current,

2
src/conversions.cc
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@ -484,6 +484,7 @@ char* DoubleToRadixCString(double value, int radix) {
}
// ES6 18.2.4 parseFloat(string)
double StringToDouble(UnicodeCache* unicode_cache, Handle<String> string,
int flags, double empty_string_val) {
Handle<String> flattened = String::Flatten(string);
@ -491,7 +492,6 @@ double StringToDouble(UnicodeCache* unicode_cache, Handle<String> string,
DisallowHeapAllocation no_gc;
String::FlatContent flat = flattened->GetFlatContent();
DCHECK(flat.IsFlat());
// ECMA-262 section 15.1.2.3, empty string is NaN
if (flat.IsOneByte()) {
return StringToDouble(unicode_cache, flat.ToOneByteVector(), flags,
empty_string_val);

69
src/js/v8natives.js
View File

@ -47,21 +47,21 @@ utils.ImportFromExperimental(function(from) {
// ----------------------------------------------------------------------------
// ECMA 262 - 15.1.4
// ES6 18.2.3 isNaN(number)
function GlobalIsNaN(number) {
number = TO_NUMBER(number);
return NUMBER_IS_NAN(number);
}
// ECMA 262 - 15.1.5
// ES6 18.2.2 isFinite(number)
function GlobalIsFinite(number) {
number = TO_NUMBER(number);
return NUMBER_IS_FINITE(number);
}
// ECMA-262 - 15.1.2.2
// ES6 18.2.5 parseInt(string, radix)
function GlobalParseInt(string, radix) {
if (IS_UNDEFINED(radix) || radix === 10 || radix === 0) {
// Some people use parseInt instead of Math.floor. This
@ -95,14 +95,16 @@ function GlobalParseInt(string, radix) {
}
// ECMA-262 - 15.1.2.3
// ES6 18.2.4 parseFloat(string)
function GlobalParseFloat(string) {
// 1. Let inputString be ? ToString(string).
string = TO_STRING(string);
if (%_HasCachedArrayIndex(string)) return %_GetCachedArrayIndex(string);
return %StringParseFloat(string);
}
// ES6 18.2.1 eval(x)
function GlobalEval(x) {
if (!IS_STRING(x)) return x;
@ -121,11 +123,11 @@ function GlobalEval(x) {
var attributes = DONT_ENUM | DONT_DELETE | READ_ONLY;
utils.InstallConstants(global, [
// ECMA 262 - 15.1.1.1.
"NaN", NaN,
// ECMA-262 - 15.1.1.2.
// ES6 18.1.1
"Infinity", INFINITY,
// ECMA-262 - 15.1.1.2.
// ES6 18.1.2
"NaN", NaN,
// ES6 18.1.3
"undefined", UNDEFINED,
]);
@ -142,7 +144,7 @@ utils.InstallFunctions(global, DONT_ENUM, [
// ----------------------------------------------------------------------------
// Object
// ECMA-262 - 15.2.4.2
// ES6 19.1.3.6 Object.prototype.toString()
function ObjectToString() {
if (IS_UNDEFINED(this)) return "[object Undefined]";
if (IS_NULL(this)) return "[object Null]";
@ -164,14 +166,14 @@ function ObjectToString() {
}
// ECMA-262 - 15.2.4.3
// ES6 19.1.3.5 Object.prototype.toLocaleString([reserved1 [,reserved2]])
function ObjectToLocaleString() {
CHECK_OBJECT_COERCIBLE(this, "Object.prototype.toLocaleString");
return this.toString();
}
// ECMA-262 - 15.2.4.4
// ES6 19.1.3.7 Object.prototype.valueOf()
function ObjectValueOf() {
return TO_OBJECT(this);
}
@ -185,7 +187,7 @@ function ObjectHasOwnProperty(value) {
}
// ECMA-262 - 15.2.4.6
// ES6 19.1.3.3 Object.prototype.isPrototypeOf(V)
function ObjectIsPrototypeOf(V) {
if (!IS_SPEC_OBJECT(V)) return false;
var O = TO_OBJECT(this);
@ -258,21 +260,21 @@ function ObjectKeys(obj) {
}
// ES5 8.10.1.
// ES6 6.2.4.1
function IsAccessorDescriptor(desc) {
if (IS_UNDEFINED(desc)) return false;
return desc.hasGetter() || desc.hasSetter();
}
// ES5 8.10.2.
// ES6 6.2.4.2
function IsDataDescriptor(desc) {
if (IS_UNDEFINED(desc)) return false;
return desc.hasValue() || desc.hasWritable();
}
// ES5 8.10.3.
// ES6 6.2.4.3
function IsGenericDescriptor(desc) {
if (IS_UNDEFINED(desc)) return false;
return !(IsAccessorDescriptor(desc) || IsDataDescriptor(desc));
@ -311,7 +313,7 @@ function FromGenericPropertyDescriptor(desc) {
}
// ES5 8.10.5.
// ES6 6.2.4.5
function ToPropertyDescriptor(obj) {
if (!IS_SPEC_OBJECT(obj)) throw MakeTypeError(kPropertyDescObject, obj);
@ -355,8 +357,7 @@ function ToPropertyDescriptor(obj) {
return desc;
}
// For Harmony proxies.
// TODO(cbruni): remove once callers have been removed
function ToCompletePropertyDescriptor(obj) {
var desc = ToPropertyDescriptor(obj);
if (IsGenericDescriptor(desc) || IsDataDescriptor(desc)) {
@ -550,7 +551,7 @@ function GetOwnPropertyJS(obj, v) {
}
// ES6, draft 12-24-14, section 7.3.8
// ES6 7.3.9
function GetMethod(obj, p) {
var func = obj[p];
if (IS_NULL_OR_UNDEFINED(func)) return UNDEFINED;
@ -578,14 +579,12 @@ function DefineProxyProperty(obj, p, attributes, should_throw) {
}
// ES5 8.12.9.
// ES6 9.1.6 [[DefineOwnProperty]](P, Desc)
function DefineObjectProperty(obj, p, desc, should_throw) {
var current_array = %GetOwnProperty_Legacy(obj, TO_NAME(p));
var current = ConvertDescriptorArrayToDescriptor(current_array);
var extensible = %IsExtensible(obj);
// Error handling according to spec.
// Step 3
if (IS_UNDEFINED(current) && !extensible) {
if (should_throw) {
throw MakeTypeError(kDefineDisallowed, p);
@ -595,7 +594,6 @@ function DefineObjectProperty(obj, p, desc, should_throw) {
}
if (!IS_UNDEFINED(current)) {
// Step 5 and 6
if ((IsGenericDescriptor(desc) ||
IsDataDescriptor(desc) == IsDataDescriptor(current)) &&
(!desc.hasEnumerable() ||
@ -944,7 +942,7 @@ function ObjectIsExtensible(obj) {
}
// ECMA-262, Edition 6, section 19.1.2.1
// ES6 19.1.2.1
function ObjectAssign(target, sources) {
// TODO(bmeurer): Move this to toplevel.
"use strict";
@ -974,13 +972,13 @@ function ObjectAssign(target, sources) {
}
// ECMA-262, Edition 6, section B.2.2.1.1
// ES6 B.2.2.1.1
function ObjectGetProto() {
return %_GetPrototype(TO_OBJECT(this));
}
// ECMA-262, Edition 6, section B.2.2.1.2
// ES6 B.2.2.1.2
function ObjectSetProto(proto) {
CHECK_OBJECT_COERCIBLE(this, "Object.prototype.__proto__");
@ -990,7 +988,7 @@ function ObjectSetProto(proto) {
}
// ECMA-262, Edition 6, section 19.1.1.1
// ES6 19.1.1.1
function ObjectConstructor(x) {
if (GlobalObject != new.target && !IS_UNDEFINED(new.target)) {
return this;
@ -1115,7 +1113,7 @@ function NumberConstructor(x) {
}
// ECMA-262 section 15.7.4.2.
// ES6 Number.prototype.toString([ radix ])
function NumberToStringJS(radix) {
// NOTE: Both Number objects and values can enter here as
// 'this'. This is not as dictated by ECMA-262.
@ -1140,13 +1138,13 @@ function NumberToStringJS(radix) {
}
// ECMA-262 section 15.7.4.3
// ES6 20.1.3.4 Number.prototype.toLocaleString([reserved1 [, reserved2]])
function NumberToLocaleString() {
return %_Call(NumberToStringJS, this);
}
// ECMA-262 section 15.7.4.4
// ES6 20.1.3.7 Number.prototype.valueOf()
function NumberValueOf() {
// NOTE: Both Number objects and values can enter here as
// 'this'. This is not as dictated by ECMA-262.
@ -1157,7 +1155,7 @@ function NumberValueOf() {
}
// ECMA-262 section 15.7.4.5
// ES6 20.1.3.3 Number.prototype.toFixed(fractionDigits)
function NumberToFixedJS(fractionDigits) {
var x = this;
if (!IS_NUMBER(this)) {
@ -1182,7 +1180,7 @@ function NumberToFixedJS(fractionDigits) {
}
// ECMA-262 section 15.7.4.6
// ES6 20.1.3.2 Number.prototype.toExponential(fractionDigits)
function NumberToExponentialJS(fractionDigits) {
var x = this;
if (!IS_NUMBER(this)) {
@ -1208,7 +1206,7 @@ function NumberToExponentialJS(fractionDigits) {
}
// ECMA-262 section 15.7.4.7
// ES6 20.1.3.5 Number.prototype.toPrecision(precision)
function NumberToPrecisionJS(precision) {
var x = this;
if (!IS_NUMBER(this)) {
@ -1369,6 +1367,8 @@ function FunctionToString() {
// ES5 15.3.4.5
// ES6 9.2.3.2 Function.prototype.bind(thisArg , ...args)
// TODO(cbruni): check again and remove FunctionProxies section further down
function FunctionBind(this_arg) { // Length is 1.
if (!IS_CALLABLE(this)) throw MakeTypeError(kFunctionBind);
@ -1482,8 +1482,7 @@ utils.InstallFunctions(GlobalFunction.prototype, DONT_ENUM, [
// ----------------------------------------------------------------------------
// Iterator related spec functions.
// ES6 rev 33, 2015-02-12
// 7.4.1 GetIterator ( obj, method )
// ES6 7.4.1 GetIterator(obj, method)
function GetIterator(obj, method) {
if (IS_UNDEFINED(method)) {
method = obj[iteratorSymbol];

4
src/runtime/runtime-numbers.cc
View File

@ -114,11 +114,13 @@ RUNTIME_FUNCTION(Runtime_StringToNumber) {
}
// ES6 18.2.5 parseInt(string, radix) slow path
RUNTIME_FUNCTION(Runtime_StringParseInt) {
HandleScope handle_scope(isolate);
DCHECK(args.length() == 2);
CONVERT_ARG_HANDLE_CHECKED(String, subject, 0);
CONVERT_NUMBER_CHECKED(int, radix, Int32, args[1]);
// Step 8.a. is already handled in the JS function.
RUNTIME_ASSERT(radix == 0 || (2 <= radix && radix <= 36));
subject = String::Flatten(subject);
@ -128,7 +130,6 @@ RUNTIME_FUNCTION(Runtime_StringParseInt) {
DisallowHeapAllocation no_gc;
String::FlatContent flat = subject->GetFlatContent();
// ECMA-262 section 15.1.2.3, empty string is NaN
if (flat.IsOneByte()) {
value =
StringToInt(isolate->unicode_cache(), flat.ToOneByteVector(), radix);
@ -141,6 +142,7 @@ RUNTIME_FUNCTION(Runtime_StringParseInt) {
}
// ES6 18.2.4 parseFloat(string)
RUNTIME_FUNCTION(Runtime_StringParseFloat) {
HandleScope shs(isolate);
DCHECK(args.length() == 1);