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Build(deps): Bump @typescript-eslint/typescript-estree from 3.10.1 to 4.0.1 #9119
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I'm not familiar with typescript, but is it possible to have other types inside
ChainExpression
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I'm wondering is this a mistake in parser?
ChainExpression
should be the root ofoptional chaining
.Shouldn't it be
TSNonNullExpression > ChainExpression
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@bradzacher
What should this
c?.d!
be? The estree sayshttps://github.com/estree/estree/blob/master/es2020.md#chainexpression
But in this case
TSNonNullExpression
is notChainElement
.I'm not familiar with typescript, is thisc?.d!
meand
is non-null, and(c?.d)!
meanc.d
is non-null?If it's correct, shouldn'tTSNonNullExpression
be theMemberExpression.property
?Update: as I see on prettier playground,
(a?.b!).c
(a?.b)!.c
are the same, so I think the AST should beTSNonNullExpression > ChainExpression
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I mirrored babel's (v7.11.3) implementation here.
This is the same AST they produce. typescript-eslint/typescript-eslint#2380
input code:
`@babel/parser` @ `7.11.3`
`@typescript-eslint/typescript-estree` @ `4.0.1`
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Thank you for the information, I'll take a deep look