Fill optional AST properties when both estree and typescript parser plugin are enabled (Part 3) #17235
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| return; | ||
| case "TSModuleDeclaration": | ||
| node.declare ??= false; | ||
| node.global ??= node.kind === "global"; |
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Since both we and they plan to remove it in the next major version, what do you think about not adding it?
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If we remove it before they release the next major, we will have to add those impacted tests to the failure set. However, test in the failure set does not really assert why the AST is different: So it may hide more AST differences than we expected.
For the time being, let's keep it for the compatibility with the current ts-eslint. We can remove it once they release a new major.
| (node as Undone<N.ExportNamedDeclaration>).attributes = []; | ||
| (node as Undone<N.ExportNamedDeclaration>).declaration = declaration; | ||
| (node as Undone<N.ExportNamedDeclaration>).exportKind = "value"; | ||
| (node as Undone<N.ExportNamedDeclaration>).source = null; |
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Out of curiosity: why is only this node not in fillOptionalPropertiesForTSESLint?
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Good question. This is the situation where we have already decided to completely align AST to ts-eslint: Babel 8 generates the same AST as ts-eslint for import equals.
For other TS nodes, we can decide whether we will align to ts-eslint. If yes, we can definitely remove more cases from fillOptionalPropertiesForTSESLint.
This PR marks the general alignment of the typescript-eslint AST. We run the alignment test against the Babel parser typescript tests and all the known AST difference is due to
tokensorstart/end, which is not formally defined in the estree spec.This PR contains commits from #17233, please review from theRebased.-----BEGIN PR-----commit placeholder.