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• Would you like to work on a fix?

How are you using Babel?

Programmatic API (babel.transform, babel.parse)

Input code

module {}.foo

AST Explorer

Configuration file name

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Configuration

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Current and expected behavior

Current: Parsing fails
Expected: Parsing succeeds

According to the spec, InlineModuleExpression (module {}) is a primary expression, so it should be allowed before the . in a member expression.

Environment

• Babel versions: 7.14.5

Possible solution

The module block is parsed in Parser#parseMaybeUnary

which aligns to the UnaryExpression in the spec. It should be moved to Parser#parseExprAtom, which handles PrimaryExpression.

Specifically we can extend the current logic for tt.name token and handle the module {} checks here:

Additional context

No response