Show More
Commit Description:
submission report
Commit Description:
submission report
References:
File last commit:
Show/Diff file:
Action:
node_modules/es-abstract/2018/RegExpExec.js
| 32 lines
| 890 B
| application/javascript
| JavascriptLexer
|
| r789 | 'use strict'; | |||
| var GetIntrinsic = require('../GetIntrinsic'); | ||||
| var $TypeError = GetIntrinsic('%TypeError%'); | ||||
| var regexExec = require('../helpers/callBound')('RegExp.prototype.exec'); | ||||
| var Call = require('./Call'); | ||||
| var Get = require('./Get'); | ||||
| var IsCallable = require('./IsCallable'); | ||||
| var Type = require('./Type'); | ||||
| // https://ecma-international.org/ecma-262/6.0/#sec-regexpexec | ||||
| module.exports = function RegExpExec(R, S) { | ||||
| if (Type(R) !== 'Object') { | ||||
| throw new $TypeError('Assertion failed: `R` must be an Object'); | ||||
| } | ||||
| if (Type(S) !== 'String') { | ||||
| throw new $TypeError('Assertion failed: `S` must be a String'); | ||||
| } | ||||
| var exec = Get(R, 'exec'); | ||||
| if (IsCallable(exec)) { | ||||
| var result = Call(exec, R, [S]); | ||||
| if (result === null || Type(result) === 'Object') { | ||||
| return result; | ||||
| } | ||||
| throw new $TypeError('"exec" method must return `null` or an Object'); | ||||
| } | ||||
| return regexExec(R, S); | ||||
| }; | ||||