Luau AST printer.

Two modes, selected by PrintOptions.mode:

• "preserve" reproduces the original source by emitting the trivia (leadingText/trailingText) carried on the CST tokens of the AST. It is a faithful round-trip of whatever tokens are present.
• "pretty" formats purely from the AST structure and never looks at any token or text field. It re-derives all whitespace, indentation, and punctuation, so its output is canonical rather than original.

Summary

Functions

API Reference

Functions

printer.print

Prints a parsed AST back to Luau source.

mode = "pretty" (default) formats from AST structure and ignores all token text and trivia. mode = "preserve" reproduces the original source from the CST tokens carried on the AST.

printer.print(astOrResult: any, options: PrintOptions?) → string

Parameters

astOrResult: any

A ParseResult or AST node.

options: PrintOptions?

Print options.

Returns

string

Printed Luau source.

Types

AstNode

type AstNode = ast.AstAny

Implements: ast.AstAny

PrintOptions

type PrintOptions = { mode: ("pretty" | "preserve")? }

mode: ("pretty" | "preserve")?