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iterator-usercode.js
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148 lines (136 loc) · 3.81 KB
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
// RUN: %hermes -O -target=HBC -serializevm-path=%t %s
// RUN: %hermes -O -deserialize-file=%t -target=HBC %s | %FileCheck --match-full-lines %s
// REQUIRES: serializer
"use strict";
// Runs an iterator until it is done.
// Prints out `value` and `done` every iteration.
function runIterator(it) {
print(it.toString());
while (true) {
var result = it.next();
print(result.value, result.done);
if (result.done) return;
}
}
var a = ['a','b','c'];
var ai1 = a.keys();
var ai2 = a.values();
var ai3 = a.entries();
var a2 = [];
var ai4 = a2.keys();
var ai5 = a2.values();
var ai6 = a2.entries();
var a3 = new Uint8Array([10, 11, 12]);
var ti1 = a3.keys();
var ti2 = a3.values();
var ti3 = a3.entries();
var a4 = new Uint8Array([]);
var ti4 = a4.keys();
var ti5 = a4.values();
var ti6 = a4.entries();
var a5 = 'abcd';
var si1 = a5[Symbol.iterator]();
var a6 = '';
var si2 = a6[Symbol.iterator]();
var a7 = 'x\uD83D\uDCD3y';
var si3 = a7[Symbol.iterator]();
var a6 = 'foo bar baz';
var re = /\w+/g
var rsi1 = a6.matchAll(re);
var a7 = ''
var rsi2 = a7.matchAll(re);
serializeVM(function() {
print('Array Iterator');
// CHECK-LABEL: Array Iterator
runIterator(ai1);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: 0 false
// CHECK-NEXT: 1 false
// CHECK-NEXT: 2 false
// CHECK-NEXT: undefined true
runIterator(ai2);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: a false
// CHECK-NEXT: b false
// CHECK-NEXT: c false
// CHECK-NEXT: undefined true
runIterator(ai3);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: 0,a false
// CHECK-NEXT: 1,b false
// CHECK-NEXT: 2,c false
// CHECK-NEXT: undefined true
runIterator(ai4);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: undefined true
runIterator(ai5);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: undefined true
runIterator(ai6);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: undefined true
print('TypedArray Iterator');
// CHECK-LABEL: TypedArray Iterator
runIterator(ti1);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: 0 false
// CHECK-NEXT: 1 false
// CHECK-NEXT: 2 false
// CHECK-NEXT: undefined true
runIterator(ti2);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: 10 false
// CHECK-NEXT: 11 false
// CHECK-NEXT: 12 false
// CHECK-NEXT: undefined true
runIterator(ti3);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: 0,10 false
// CHECK-NEXT: 1,11 false
// CHECK-NEXT: 2,12 false
// CHECK-NEXT: undefined true
runIterator(ti4);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: undefined true
runIterator(ti5);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: undefined true
runIterator(ti6);
// CHECK-NEXT: [object Array Iterator]
// CHECK-NEXT: undefined true
print('String Iterator');
// CHECK-LABEL: String Iterator
runIterator(si1);
// CHECK-NEXT: [object String Iterator]
// CHECK-NEXT: a false
// CHECK-NEXT: b false
// CHECK-NEXT: c false
// CHECK-NEXT: d false
// CHECK-NEXT: undefined true
runIterator(si2);
// CHECK-NEXT: [object String Iterator]
// CHECK-NEXT: undefined true
runIterator(si3);
// CHECK-NEXT: [object String Iterator]
// CHECK-NEXT: x false
// CHECK-NEXT: 📓 false
// CHECK-NEXT: y false
// CHECK-NEXT: undefined true
print('RegExp String Iterator');
// CHECK-LABEL: RegExp String Iterator
runIterator(rsi1);
// CHECK-NEXT: [object RegExp String Iterator]
// CHECK-NEXT: foo false
// CHECK-NEXT: bar false
// CHECK-NEXT: baz false
// CHECK-NEXT: undefined true
runIterator(rsi2);
// CHECK-NEXT: [object RegExp String Iterator]
// CHECK-NEXT: undefined true
})