Old assertion syntax with "const" results in parse error #46

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opened 2025-07-15 14:42:26 +02:00 by SirPepe · 1 comment

SirPepe commented 2025-07-15 14:42:26 +02:00 (Migrated from github.com)

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This a valid syntax for const assertions:

const x = <const>[1, 2];

Lezer does not agree:

Script(VariableDeclaration(const,VariableDefinition,Equals,MemberExpression(ArrowFunction(TypeParamList("<",const,⚠,">"),⚠),"[",SequenceExpression(Number,",",Number),"]"),";"))

This a [valid](https://www.typescriptlang.org/play/?jsx=0#code/MYewdgzgLgBAHjAvDAPKSUB8BtAjAGhgCYBdAbiA) syntax for const assertions: ```typescript const x = <const>[1, 2]; ``` Lezer does not agree: ``` Script(VariableDeclaration(const,VariableDefinition,Equals,MemberExpression(ArrowFunction(TypeParamList("<",const,⚠,">"),⚠),"[",SequenceExpression(Number,",",Number),"]"),";")) ```

marijnh commented 2025-07-15 14:46:34 +02:00 (Migrated from github.com)

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Attached patch adds support for that.

Attached patch adds support for that.

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lezer/javascript#46

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