diff options
author | isaacs <i@izs.me> | 2020-07-23 20:58:04 +0300 |
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committer | isaacs <i@izs.me> | 2020-07-29 21:53:42 +0300 |
commit | ad5e07d8bd86d1dbe2b03dc142f8c8d6f4828ffe (patch) | |
tree | 97b66f97d77f35774f10a5e3e9957b1897d150bb /node_modules/es-abstract/2015/ToNumber.js | |
parent | a16994cfdd2f255016f3d8ee60d03473d80eabd8 (diff) |
Full dependency reboot
Reinstall everything from a clean node_modules and package-lock.json
state.
Re-generate list of bundleDependencies and node_modules/.gitignore with
a script that does the right thing based on actual dependency state.
Diffstat (limited to 'node_modules/es-abstract/2015/ToNumber.js')
-rw-r--r-- | node_modules/es-abstract/2015/ToNumber.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2015/ToNumber.js b/node_modules/es-abstract/2015/ToNumber.js new file mode 100644 index 000000000..7a3cdc89e --- /dev/null +++ b/node_modules/es-abstract/2015/ToNumber.js @@ -0,0 +1,59 @@ +'use strict'; + +var GetIntrinsic = require('../GetIntrinsic'); + +var $TypeError = GetIntrinsic('%TypeError%'); +var $Number = GetIntrinsic('%Number%'); +var $RegExp = GetIntrinsic('%RegExp%'); +var $parseInteger = GetIntrinsic('%parseInt%'); + +var callBound = require('../helpers/callBound'); +var regexTester = require('../helpers/regexTester'); +var isPrimitive = require('../helpers/isPrimitive'); + +var $strSlice = callBound('String.prototype.slice'); +var isBinary = regexTester(/^0b[01]+$/i); +var isOctal = regexTester(/^0o[0-7]+$/i); +var isInvalidHexLiteral = regexTester(/^[-+]0x[0-9a-f]+$/i); +var nonWS = ['\u0085', '\u200b', '\ufffe'].join(''); +var nonWSregex = new $RegExp('[' + nonWS + ']', 'g'); +var hasNonWS = regexTester(nonWSregex); + +// whitespace from: https://es5.github.io/#x15.5.4.20 +// implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324 +var ws = [ + '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003', + '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028', + '\u2029\uFEFF' +].join(''); +var trimRegex = new RegExp('(^[' + ws + ']+)|([' + ws + ']+$)', 'g'); +var $replace = callBound('String.prototype.replace'); +var $trim = function (value) { + return $replace(value, trimRegex, ''); +}; + +var ToPrimitive = require('./ToPrimitive'); + +// https://www.ecma-international.org/ecma-262/6.0/#sec-tonumber + +module.exports = function ToNumber(argument) { + var value = isPrimitive(argument) ? argument : ToPrimitive(argument, $Number); + if (typeof value === 'symbol') { + throw new $TypeError('Cannot convert a Symbol value to a number'); + } + if (typeof value === 'string') { + if (isBinary(value)) { + return ToNumber($parseInteger($strSlice(value, 2), 2)); + } else if (isOctal(value)) { + return ToNumber($parseInteger($strSlice(value, 2), 8)); + } else if (hasNonWS(value) || isInvalidHexLiteral(value)) { + return NaN; + } else { + var trimmed = $trim(value); + if (trimmed !== value) { + return ToNumber(trimmed); + } + } + } + return $Number(value); +}; |