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Document why module block is optional #205

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Jan 10, 2022
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Document why module block is optional #205

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2 changes: 2 additions & 0 deletions common/define-grammar.js
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Original file line number Diff line number Diff line change
Expand Up @@ -479,6 +479,8 @@ module.exports = function defineGrammar(dialect) {

_module: $ => prec.right(seq(
field('name', choice($.string, $.identifier, $.nested_identifier)),
// On .d.ts files "declare module foo" desugars to "declare module foo {}",
// hence why it is optional here
field('body', optional($.statement_block))
)),

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