javascript - Sweet.js - Parenthesis in macros body -

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i want use parenthesis in macros body group expressions. example:

macro m {   rule { ($x, $y) } => {     $x >>> ($y * 5)   } }

sweet.js remove parenthesis:

m(6, 7) => 6 >>> 7 * 5

i expect next output:

m(6, 7) => 6 >>> (7 * 5)

how can escape parenthesis inside macros body?

sweet.js (technically escodegen sweet.js uses codegen) removes redundant parens (ie precedence rules mean 6 >>> 7 * 5 === 6 >>> (7 * 5) parens aren't needed) shouldn't need escape parens in macros.


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