Function guard

crates/sql-parser/src/parser/recursion.rs:20–26

A utility for guarding against stack overflows in the SQL parser. Usage: ``` use spacetimedb_sql_parser::parser::recursion; let mut depth = 0; assert!(recursion::guard(depth, 10, "test").is_ok()); ```

(depth: usize, limit: usize, source: &'static str)

/// assert!(recursion::guard(depth, 10, "test").is_ok());
/// ```
pub fn guard(depth: usize, limit: usize, source: &'static str) -> Result<(), SqlParseError> {
    if depth > limit {
        Err(RecursionError { source_: source }.into())
    } else {
        Ok(())
    }
}