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.
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JSTests
/
stress
/
generator-prototype-copy.js
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function
*
gen
()
{
yield
;
}
let foo
=
gen
();
let obj
=
{};
obj
.
__proto__
=
foo
;
try
{
obj
.
next
().
value
;
throw
"bad"
;
}
catch
(
e
)
{
if
(!(
e instanceof
TypeError
))
throw
e
;
}