Function split_top_level

codegraph-kernel/src/cfnptr.rs:987–1004

splitTopLevel(body, sep): split on `sep` at brace/paren/bracket depth 0.

(body: &[u8], sep: u8)

// ---------- struct field parsing ----------

/// splitTopLevel(body, sep): split on `sep` at brace/paren/bracket depth 0.
fn split_top_level(body: &[u8], sep: u8) -> Vec<Range> {
    let mut out = Vec::new();
    let mut depth = 0i64;
    let mut start = 0usize;
    for (i, &c) in body.iter().enumerate() {
        match c {
            b'{' | b'(' | b'[' => depth += 1,
            b'}' | b')' | b']' => depth -= 1,
            _ if c == sep && depth == 0 => {
                out.push((start, i));
                start = i + 1;
            }
            _ => {}
        }
    }
    out.push((start, body.len()));
    out
}

/// JS String.prototype.trim over bytes (the JS set == our jsws set).