zyn 0.5.4

A proc macro framework with templates, composable elements, and built-in diagnostics
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use zyn_core::Template;

macro_rules! expect_err {
    ($s:literal) => {
        match zyn::parse!($s => Template) {
            Err(e) => e.to_string(),
            Ok(_) => panic!("expected parse error for: {}", $s),
        }
    };
}

#[test]
fn empty_interpolation() {
    let msg = expect_err!("{{ }}");
    assert!(msg.contains("empty interpolation"), "got: {msg}");
}

#[test]
fn else_without_if() {
    let msg = expect_err!("@else { foo }");
    assert!(msg.contains("unexpected @else without @if"), "got: {msg}");
}

#[test]
fn element_no_parens() {
    assert!(zyn::parse!("@my_element" => Template).is_ok());
}

#[test]
fn element_empty_parens() {
    assert!(zyn::parse!("@my_element()" => Template).is_ok());
}