test/mjsunit/regress/regress-4815.js

// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

var thrower = { [Symbol.toPrimitive]: () => FAIL };

// Tests that a native conversion function is included in the
// stack trace.
function testTraceNativeConversion(nativeFunc) {
  var nativeFuncName = nativeFunc.name;
  try {
    nativeFunc(thrower);
    assertUnreachable(nativeFuncName);
  } catch (e) {
    assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
  }
}

testTraceNativeConversion(Math.max);
testTraceNativeConversion(Math.min);

// C++ builtins.
testTraceNativeConversion(Math.acos);
testTraceNativeConversion(Math.asin);
testTraceNativeConversion(Math.fround);
testTraceNativeConversion(Math.imul);


function testBuiltinInStackTrace(script, expectedString) {
  try {
    eval(script);
    assertUnreachable(expectedString);
  } catch (e) {
    assertTrue(e.stack.indexOf(expectedString) >= 0, expectedString);
  }
}

// Use the full name ('String.getDate') in order to avoid false pass
// results when the method name is mentioned in the error message itself.
// This occurs, e.g., for Date.prototype.getYear, which uses a different code
// path and never hits the Generate_DatePrototype_GetField builtin.
testBuiltinInStackTrace("Date.prototype.getDate.call('')", "at String.getDate");
testBuiltinInStackTrace("Date.prototype.getUTCDate.call('')",
                        "at String.getUTCDate");
testBuiltinInStackTrace("Date.prototype.getTime.call('')", "at String.getTime");

// C++ builtins.
testBuiltinInStackTrace("Boolean.prototype.toString.call(thrower);",
                        "at toString");
testBuiltinInStackTrace("new Date(thrower);", "at Date");