Function read_spec

compiler/src/modules/packages/mod.rs:163–181

Reads the module spec at token `j`: a quoted string or a dotted bare name. Returns (spec, index past it). */

(src: &str, tokens: &[Token], j: usize)

/* Reads the module spec at token `j`: a quoted string or a dotted bare name. Returns (spec, index past it). */
fn read_spec(src: &str, tokens: &[Token], j: usize) -> Option<(ImportSpec, usize)> {
    let t = tokens.get(j)?;
    match t.kind {
        TokenType::String => Some((ImportSpec::Quoted(unquote(&src[t.start..t.end])), j + 1)),
        TokenType::Name => {
            let mut name = src[t.start..t.end].to_string();
            let mut k = j + 1;
            // Dotted segments: a.b.c.
            while tokens.get(k).map(|x| x.kind) == Some(TokenType::Dot) {
                let Some(seg) = tokens.get(k + 1).filter(|s| s.kind == TokenType::Name) else { break };
                name.push('.');
                name.push_str(&src[seg.start..seg.end]);
                k += 2;
            }
            Some((ImportSpec::Bare(name), k))
        }
        _ => None,
    }
}

/* Every import spec, classified Bare vs Quoted, via the lexer so a `from`/`import` inside a comment or string is never a false hit. */
pub fn scan_imports(src: &str) -> Vec<ImportSpec> {