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	* Atomics.waitAsync: BigInt * Atomics.waitAsync: check for function to avoid false positives
		
			
				
	
	
		
			94 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			94 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// Copyright (C) 2020 Rick Waldron. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-atomics.waitasync
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description: >
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  Throws a TypeError if index arg can not be converted to an Integer
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info: |
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  Atomics.waitAsync( typedArray, index, value, timeout )
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  1. Return DoWait(async, typedArray, index, value, timeout).
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  DoWait ( mode, typedArray, index, value, timeout )
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  2. Let i be ? ValidateAtomicAccess(typedArray, index).
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  ValidateAtomicAccess( typedArray, requestIndex )
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  2. Let accessIndex be ? ToIndex(requestIndex).
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  ToIndex ( value )
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  2. Else,
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    a. Let integerIndex be ? ToInteger(value).
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  ToInteger(value)
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  1. Let number be ? ToNumber(argument).
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    Symbol --> Throw a TypeError exception.
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flags: [async]
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includes: [atomicsHelper.js]
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features: [Atomics.waitAsync, SharedArrayBuffer, Symbol, Symbol.toPrimitive, TypedArray, Atomics, BigInt, arrow-function, async-functions]
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---*/
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assert.sameValue(typeof Atomics.waitAsync, 'function');
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const RUNNING = 1;
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$262.agent.start(`
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  const poisonedValueOf = {
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    valueOf() {
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      throw new Test262Error('should not evaluate this code');
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    }
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  };
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  const poisonedToPrimitive = {
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    [Symbol.toPrimitive]() {
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      throw new Test262Error('should not evaluate this code');
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    }
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  };
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  $262.agent.receiveBroadcast(function(sab) {
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    const i64a = new BigInt64Array(sab);
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    Atomics.add(i64a, ${RUNNING}, 1n);
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    let status1 = '';
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    let status2 = '';
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    try {
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      Atomics.waitAsync(i64a, Symbol('1'), poisonedValueOf, poisonedValueOf);
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    } catch (error) {
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      status1 = 'A ' + error.name;
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    }
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    try {
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      Atomics.waitAsync(i64a, Symbol('2'), poisonedToPrimitive, poisonedToPrimitive);
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    } catch (error) {
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      status2 = 'B ' + error.name;
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    }
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    $262.agent.report(status1);
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    $262.agent.report(status2);
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    $262.agent.leaving();
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  });
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`);
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const i64a = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4));
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$262.agent.safeBroadcastAsync(i64a, RUNNING, 1n).then(async agentCount => {
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  assert.sameValue(agentCount, 1n);
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  assert.sameValue(
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    await $262.agent.getReportAsync(),
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    'A TypeError',
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    'Atomics.waitAsync(i64a, Symbol("1"), ..., ...) throws TypeError'
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  );
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  assert.sameValue(
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    await $262.agent.getReportAsync(),
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    'B TypeError',
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    'Atomics.waitAsync(i64a, Symbol("2"), ..., ...) throws TypeError'
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  );
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  assert.sameValue(Atomics.notify(i64a, 0), 0, 'Atomics.notify(i64a, 0) returns 0');
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}).then($DONE, $DONE);
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