ferriorm-codegen 0.1.5

Code generator for ferriorm ORM - generates type-safe Rust client code
Documentation 
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//! Source code formatting for generated Rust code.
//!
//! Uses `syn` to parse the token stream and `prettyplease` to pretty-print it.
//! This ensures that all generated files are human-readable and consistently
//! formatted.

/// Format a token stream into a pretty-printed Rust source string.
///
/// # Panics
///
/// Panics if the generated token stream is not valid Rust syntax, which
/// indicates a bug in the code generator.
#[must_use]
#[allow(clippy::needless_pass_by_value)] // Clone needed for error fallback
pub fn format_token_stream(tokens: proc_macro2::TokenStream) -> String {
    match syn::parse2::<syn::File>(tokens.clone()) {
        Ok(file) => prettyplease::unparse(&file),
        Err(e) => {
            // On parse failure, output the raw tokens for debugging
            eprintln!("Code generation syntax error: {e}");
            eprintln!("Raw tokens:\n{tokens}");
            panic!("generated code should be valid syntax: {e}");
        }
    }
}