| Index: src/harmony-string.js
|
| diff --git a/src/harmony-string.js b/src/harmony-string.js
|
| deleted file mode 100644
|
| index b3192937effd6a410f8ddee6946575e0d4676bc9..0000000000000000000000000000000000000000
|
| --- a/src/harmony-string.js
|
| +++ /dev/null
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| @@ -1,194 +0,0 @@
|
| -// Copyright 2014 the V8 project authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -"use strict";
|
| -
|
| -// This file relies on the fact that the following declaration has been made
|
| -// in runtime.js:
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| -// var $String = global.String;
|
| -// var $Array = global.Array;
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| -
|
| -// -------------------------------------------------------------------
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| -
|
| -// ES6 draft 01-20-14, section 21.1.3.13
|
| -function StringRepeat(count) {
|
| - CHECK_OBJECT_COERCIBLE(this, "String.prototype.repeat");
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| -
|
| - var s = TO_STRING_INLINE(this);
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| - var n = ToInteger(count);
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| - // The maximum string length is stored in a smi, so a longer repeat
|
| - // must result in a range error.
|
| - if (n < 0 || n > %_MaxSmi()) {
|
| - throw MakeRangeError("invalid_count_value", []);
|
| - }
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| -
|
| - var r = "";
|
| - while (true) {
|
| - if (n & 1) r += s;
|
| - n >>= 1;
|
| - if (n === 0) return r;
|
| - s += s;
|
| - }
|
| -}
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| -
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| -
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| -// ES6 draft 04-05-14, section 21.1.3.18
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| -function StringStartsWith(searchString /* position */) { // length == 1
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| - CHECK_OBJECT_COERCIBLE(this, "String.prototype.startsWith");
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| -
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| - var s = TO_STRING_INLINE(this);
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| -
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| - if (IS_REGEXP(searchString)) {
|
| - throw MakeTypeError("first_argument_not_regexp",
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| - ["String.prototype.startsWith"]);
|
| - }
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| -
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| - var ss = TO_STRING_INLINE(searchString);
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| - var pos = 0;
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| - if (%_ArgumentsLength() > 1) {
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| - pos = %_Arguments(1); // position
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| - pos = ToInteger(pos);
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| - }
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| -
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| - var s_len = s.length;
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| - var start = $min($max(pos, 0), s_len);
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| - var ss_len = ss.length;
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| - if (ss_len + start > s_len) {
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| - return false;
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| - }
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| -
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| - return %StringIndexOf(s, ss, start) === start;
|
| -}
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| -
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| -
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| -// ES6 draft 04-05-14, section 21.1.3.7
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| -function StringEndsWith(searchString /* position */) { // length == 1
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| - CHECK_OBJECT_COERCIBLE(this, "String.prototype.endsWith");
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| -
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| - var s = TO_STRING_INLINE(this);
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| -
|
| - if (IS_REGEXP(searchString)) {
|
| - throw MakeTypeError("first_argument_not_regexp",
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| - ["String.prototype.endsWith"]);
|
| - }
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| -
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| - var ss = TO_STRING_INLINE(searchString);
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| - var s_len = s.length;
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| - var pos = s_len;
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| - if (%_ArgumentsLength() > 1) {
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| - var arg = %_Arguments(1); // position
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| - if (!IS_UNDEFINED(arg)) {
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| - pos = ToInteger(arg);
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| - }
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| - }
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| -
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| - var end = $min($max(pos, 0), s_len);
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| - var ss_len = ss.length;
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| - var start = end - ss_len;
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| - if (start < 0) {
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| - return false;
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| - }
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| -
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| - return %StringLastIndexOf(s, ss, start) === start;
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| -}
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| -
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| -
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| -// ES6 draft 04-05-14, section 21.1.3.6
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| -function StringIncludes(searchString /* position */) { // length == 1
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| - CHECK_OBJECT_COERCIBLE(this, "String.prototype.includes");
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| -
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| - var s = TO_STRING_INLINE(this);
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| -
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| - if (IS_REGEXP(searchString)) {
|
| - throw MakeTypeError("first_argument_not_regexp",
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| - ["String.prototype.includes"]);
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| - }
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| -
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| - var ss = TO_STRING_INLINE(searchString);
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| - var pos = 0;
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| - if (%_ArgumentsLength() > 1) {
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| - pos = %_Arguments(1); // position
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| - pos = ToInteger(pos);
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| - }
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| -
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| - var s_len = s.length;
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| - var start = $min($max(pos, 0), s_len);
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| - var ss_len = ss.length;
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| - if (ss_len + start > s_len) {
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| - return false;
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| - }
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| -
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| - return %StringIndexOf(s, ss, start) !== -1;
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| -}
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| -
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| -
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| -// ES6 Draft 05-22-2014, section 21.1.3.3
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| -function StringCodePointAt(pos) {
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| - CHECK_OBJECT_COERCIBLE(this, "String.prototype.codePointAt");
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| -
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| - var string = TO_STRING_INLINE(this);
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| - var size = string.length;
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| - pos = TO_INTEGER(pos);
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| - if (pos < 0 || pos >= size) {
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| - return UNDEFINED;
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| - }
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| - var first = %_StringCharCodeAt(string, pos);
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| - if (first < 0xD800 || first > 0xDBFF || pos + 1 == size) {
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| - return first;
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| - }
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| - var second = %_StringCharCodeAt(string, pos + 1);
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| - if (second < 0xDC00 || second > 0xDFFF) {
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| - return first;
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| - }
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| - return (first - 0xD800) * 0x400 + second + 0x2400;
|
| -}
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| -
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| -
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| -// ES6 Draft 05-22-2014, section 21.1.2.2
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| -function StringFromCodePoint(_) { // length = 1
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| - var code;
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| - var length = %_ArgumentsLength();
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| - var index;
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| - var result = "";
|
| - for (index = 0; index < length; index++) {
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| - code = %_Arguments(index);
|
| - if (!%_IsSmi(code)) {
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| - code = ToNumber(code);
|
| - }
|
| - if (code < 0 || code > 0x10FFFF || code !== TO_INTEGER(code)) {
|
| - throw MakeRangeError("invalid_code_point", [code]);
|
| - }
|
| - if (code <= 0xFFFF) {
|
| - result += %_StringCharFromCode(code);
|
| - } else {
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| - code -= 0x10000;
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| - result += %_StringCharFromCode((code >>> 10) & 0x3FF | 0xD800);
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| - result += %_StringCharFromCode(code & 0x3FF | 0xDC00);
|
| - }
|
| - }
|
| - return result;
|
| -}
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| -
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| -
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| -// -------------------------------------------------------------------
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| -
|
| -function ExtendStringPrototype() {
|
| - %CheckIsBootstrapping();
|
| -
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| - // Set up the non-enumerable functions on the String object.
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| - InstallFunctions($String, DONT_ENUM, $Array(
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| - "fromCodePoint", StringFromCodePoint
|
| - ));
|
| -
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| - // Set up the non-enumerable functions on the String prototype object.
|
| - InstallFunctions($String.prototype, DONT_ENUM, $Array(
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| - "codePointAt", StringCodePointAt,
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| - "includes", StringIncludes,
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| - "endsWith", StringEndsWith,
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| - "repeat", StringRepeat,
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| - "startsWith", StringStartsWith
|
| - ));
|
| -}
|
| -
|
| -ExtendStringPrototype();
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|
|