35 lines
684 B
JavaScript
35 lines
684 B
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var $TypeError = require('es-errors/type');
|
||
|
|
|
||
|
|
var GetV = require('./GetV');
|
||
|
|
var IsCallable = require('./IsCallable');
|
||
|
|
var isPropertyKey = require('../helpers/isPropertyKey');
|
||
|
|
|
||
|
|
var inspect = require('object-inspect');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/6.0/#sec-getmethod
|
||
|
|
|
||
|
|
module.exports = function GetMethod(O, P) {
|
||
|
|
// 7.3.9.1
|
||
|
|
if (!isPropertyKey(P)) {
|
||
|
|
throw new $TypeError('Assertion failed: P is not a Property Key');
|
||
|
|
}
|
||
|
|
|
||
|
|
// 7.3.9.2
|
||
|
|
var func = GetV(O, P);
|
||
|
|
|
||
|
|
// 7.3.9.4
|
||
|
|
if (func == null) {
|
||
|
|
return void 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// 7.3.9.5
|
||
|
|
if (!IsCallable(func)) {
|
||
|
|
throw new $TypeError(inspect(P) + ' is not a function: ' + inspect(func));
|
||
|
|
}
|
||
|
|
|
||
|
|
// 7.3.9.6
|
||
|
|
return func;
|
||
|
|
};
|