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			32 lines
		
	
	
		
			819 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			32 lines
		
	
	
		
			819 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --async-stack-traces
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// Check that Error.prepareStackTrace properly marks async frames.
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Error.prepareStackTrace = (e, frames) => {
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  assertEquals(two, frames[0].getFunction());
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  assertEquals(two.name, frames[0].getFunctionName());
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  assertFalse(frames[0].isAsync());
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  assertEquals(two, frames[1].getFunction());
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  assertEquals(one.name, frames[1].getFunctionName());
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  assertTrue(frames[1].isAsync());
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  return frames;
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};
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async function one(x) {
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  return await two(x);
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}
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async function two(x) {
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  try {
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    x = await x;
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    throw new Error();
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  } catch (e) {
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    return e.stack;
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  }
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}
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one(1).catch(e => setTimeout(_ => {throw e}, 0));
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