Struct FormatterOptions 

pub struct FormatterOptions {
    pub preserve_comments: bool,
    pub parenthesize_expressions: bool,
    pub annotate_types: bool,
    pub signature_roots: Option<Vec<SyntaxNode>>,
    pub canonical_format: bool,
    pub indent_style: IndentStyle,
    pub brace_style: BraceStyle,
    pub semicolon_style: SemicolonStyle,
}

Options for printing the syntax tree.

Fields

preserve_comments: bool

Include trivia (whitespace, comments) in the output. If false, only semantic tokens are emitted.

parenthesize_expressions: bool

Wrap expressions in parentheses to make precedence explicit (e.g. a + b + c * d → ((a + b) + (c * d))).

annotate_types: bool

Add block comments /* type */ with the inferred type after expressions and variables.

signature_roots: Option<Vec<SyntaxNode>>

When annotate_types is true, use these signature roots (e.g. stdlib) so built-in function/global types are inferred.

canonical_format: bool

When true, normalize layout: indentation, brace style, semicolons. Ignores source whitespace/comment layout.

indent_style: IndentStyle

Indentation for canonical format (tabs or N spaces).

brace_style: BraceStyle

Brace placement for canonical format.

semicolon_style: SemicolonStyle

Semicolon placement for canonical format.

Trait Implementations

impl Clone for FormatterOptions

fn clone(&self) -> FormatterOptions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FormatterOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FormatterOptions

fn default() -> Self

Returns the “default value” for a type.