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Commit0f6a792

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1 parent25e9be2 commit0f6a792

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12 files changed

+390
-114
lines changed

12 files changed

+390
-114
lines changed

‎dist/index.js‎

Lines changed: 45 additions & 41 deletions
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‎dist/index.js.map‎

Lines changed: 4 additions & 4 deletions
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‎lib/ctor.js‎

Lines changed: 93 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,93 @@
1+
/**
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*@license Apache-2.0
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*
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* Copyright (c) 2024 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
10+
* http://www.apache.org/licenses/LICENSE-2.0
11+
*
12+
* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
14+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15+
* See the License for the specific language governing permissions and
16+
* limitations under the License.
17+
*/
18+
19+
'use strict';
20+
21+
// MAIN //
22+
23+
/**
24+
* Returns a trap for constructing new array instances.
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*
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*@private
27+
*@param {Object} ctx - context object
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*@param {Function} ctx.array2fancy - function for creating a proxied array
29+
*@returns {Function} handler
30+
*/
31+
functionfactory(ctx){
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returnconstructor;
33+
34+
/**
35+
* Trap for constructing new array instances.
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*
37+
*@private
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*@param {Object} target - target object
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*@param {Array} args - list of constructor arguments
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*@param {Object} newTarget - constructor that was originally called
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*@returns {*} new instance
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*/
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functionconstructor(target,args){
44+
varx;
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vara;
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47+
a=args;
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switch(a.length){
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case0:
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x=newtarget();
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break;
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case1:
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x=newtarget(a[0]);
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break;
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case2:
56+
x=newtarget(a[0],a[1]);
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break;
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case3:
59+
x=newtarget(a[0],a[1],a[2]);
60+
break;
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case4:
62+
x=newtarget(a[0],a[1],a[2],a[3]);
63+
break;
64+
case5:
65+
x=newtarget(a[0],a[1],a[2],a[3],a[4]);
66+
break;
67+
case6:
68+
x=newtarget(a[0],a[1],a[2],a[3],a[4],a[5]);
69+
break;
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case7:
71+
x=newtarget(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
72+
break;
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case8:
74+
x=newtarget(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
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break;
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case9:
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x=newtarget(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);// eslint-disable-line max-len
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break;
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case10:
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x=newtarget(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);// eslint-disable-line max-len
81+
break;
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default:
83+
// Fallback to using `apply`; however, some constructors may error if the constructor is not callable (i.e., if a constructor always requires `new`):
84+
x=target.apply(null,a);
85+
}
86+
returnctx.array2fancy(x);
87+
}
88+
}
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90+
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// EXPORTS //
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module.exports=factory;

‎lib/get.js‎

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -35,9 +35,10 @@ var getSlice = require( './get_slice.js' );
3535
*
3636
*@private
3737
*@param {Object} ctx - context object
38-
*@param {Function} ctx.array2fancy - function for creating a proxied array
3938
*@param {Function} ctx.getter - accessor for retrieving array elements
4039
*@param {boolean} ctx.strict - boolean indicating whether to enforce strict bounds checking
40+
*@param {Function} ctx.ctor - proxied array constructor
41+
*@param {Function} ctx.postGetSlice - function to process a retrieved slice
4142
*@returns {Function} handler
4243
*/
4344
functionfactory(ctx){
@@ -61,7 +62,7 @@ function factory( ctx ) {
6162
if(hasProperty(target,property)||!isString(property)){
6263
returngetValue(target,property,receiver,ctx);
6364
}
64-
returngetSlice(target,property,receiver,ctx.strict);
65+
returngetSlice(target,property,receiver,ctx);
6566
}
6667
}
6768

‎lib/get_slice.js‎

Lines changed: 6 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -34,19 +34,21 @@ var prop2slice = require( './prop2slice.js' );
3434
*@param {Object} target - target object
3535
*@param {string} property - property name
3636
*@param {Object} receiver - the proxy object or an object inheriting from the proxy
37-
*@param {boolean} strict - boolean indicating whether to enforce strict bounds checking
37+
*@param {Object} ctx - context object
38+
*@param {Function} ctx.postGetSlice - function to process a retrieved slice
39+
*@param {boolean} ctx.strict - boolean indicating whether to enforce strict bounds checking
3840
*@throws {Error} invalid slice operation
3941
*@throws {RangeError} slice exceeds array bounds
4042
*@returns {(Collection|void)} result
4143
*/
42-
functiongetSlice(target,property,receiver,strict){
43-
vars=prop2slice(target,property,strict);
44+
functiongetSlice(target,property,receiver,ctx){
45+
vars=prop2slice(target,property,ctx.strict);
4446
if(s===null){
4547
// Ensure consistency with normal array behavior by returning `undefined` for any "unrecognized" property name:
4648
return;
4749
}
4850
try{
49-
returnslice(receiver,s,strict);
51+
returnctx.postGetSlice(slice(target,s,ctx.strict));
5052
}catch(err){
5153
// In principle, we should only error when in "strict" mode and a slice exceeds array bounds...
5254
thrownewerr.constructor(errMessage(err.message));

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