-
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathget.js
79 lines (69 loc) · 2.45 KB
/
get.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
/**
* @license Apache-2.0
*
* Copyright (c) 2024 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
var hasProperty = require( '@stdlib/assert/has-property' );
var isIntegerString = require( './is_integer_string.js' );
var isArrayIndexString = require( './is_array_index_string.js' );
var getElements = require( './get_elements.js' );
var getElement = require( './get_element.js' );
var getValue = require( './get_value.js' );
var getSlice = require( './get_slice.js' );
// MAIN //
/**
* Returns a trap for retrieving property values.
*
* @private
* @param {Object} ctx - context object
* @param {Function} ctx.getter - accessor for retrieving array elements
* @param {boolean} ctx.strict - boolean indicating whether to enforce strict bounds checking
* @param {Function} ctx.ctor - proxied array constructor
* @param {Function} ctx.postGetArray - function to process a retrieved array
* @param {Object} ctx.cache - cache for resolving array index objects
* @returns {Function} handler
*/
function factory( ctx ) {
return get;
/**
* Trap for retrieving property values.
*
* @private
* @param {Object} target - target object
* @param {(string|symbol)} property - property name
* @param {Object} receiver - the proxy object or an object inheriting from the proxy
* @throws {Error} invalid slice operation
* @throws {RangeError} slice exceeds array bounds
* @throws {RangeError} index exceeds array bounds
* @returns {*} result
*/
function get( target, property, receiver ) {
if ( isIntegerString( property ) ) {
return getElement( target, property, ctx );
}
if ( hasProperty( target, property ) || !isString( property ) ) {
return getValue( target, property, receiver, ctx );
}
if ( isArrayIndexString( property ) ) {
return getElements( target, property, ctx );
}
return getSlice( target, property, ctx );
}
}
// EXPORTS //
module.exports = factory;