stylua 0.1.0-alpha

A code formatter for Lua
Documentation 
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use full_moon::ast::{punctuated::Punctuated, Assignment, LocalAssignment};
use full_moon::tokenizer::TokenReference;
use std::borrow::Cow;

#[cfg(feature = "luau")]
use crate::formatters::luau_formatter;
use crate::formatters::{expression_formatter, CodeFormatter};

pub fn format_assignment<'ast>(
    code_formatter: &mut CodeFormatter,
    assignment: Assignment<'ast>,
) -> Assignment<'ast> {
    let var_list = code_formatter.format_punctuated(
        assignment.var_list().to_owned(),
        &expression_formatter::format_var,
    );
    let expr_list = code_formatter.format_punctuated(
        assignment.expr_list().to_owned(),
        &expression_formatter::format_expression,
    );

    assignment
        .with_var_list(var_list)
        .with_equal_token(Cow::Owned(TokenReference::symbol(" = ").unwrap()))
        .with_expr_list(expr_list)
}

pub fn format_local_assignment<'ast>(
    code_formatter: &mut CodeFormatter,
    assignment: LocalAssignment<'ast>,
) -> LocalAssignment<'ast> {
    let local_token = code_formatter.format_symbol(
        assignment.local_token().to_owned(),
        TokenReference::symbol("local ").unwrap(),
    );

    let name_list = code_formatter.format_punctuated(
        assignment.name_list().to_owned(),
        &CodeFormatter::format_token_reference_mut,
    );

    #[cfg(feature = "luau")]
    let type_specifiers = assignment
        .type_specifiers()
        .map(|x| match x {
            Some(type_specifier) => Some(luau_formatter::format_type_specifier(
                code_formatter,
                type_specifier.to_owned(),
            )),
            None => None,
        })
        .collect();

    #[cfg(feature = "luau")]
    let assignment = assignment.with_type_specifiers(type_specifiers);

    if assignment.expr_list().is_empty() {
        assignment
            .with_local_token(local_token)
            .with_name_list(name_list)
            .with_equal_token(None)
            .with_expr_list(Punctuated::new())
    } else {
        let equal_token = code_formatter.format_symbol(
            assignment.equal_token().unwrap().to_owned(),
            TokenReference::symbol(" = ").unwrap(),
        );
        let expr_list = code_formatter.format_punctuated(
            assignment.expr_list().to_owned(),
            &expression_formatter::format_expression,
        );

        assignment
            .with_local_token(local_token)
            .with_name_list(name_list)
            .with_equal_token(Some(equal_token))
            .with_expr_list(expr_list)
    }
}