Function ts_highlighter_highlight 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn ts_highlighter_highlight(
    this: *const TSHighlighter,
    scope_name: *const c_char,
    source_code: *const c_char,
    source_code_len: u32,
    output: *mut TSHighlightBuffer,
    cancellation_flag: *const AtomicUsize,
) -> ErrorCode

Highlight a string of source code.

Safety

The caller must ensure that scope_name, source_code, output, and cancellation_flag are valid for the lifetime of the TSHighlighter instance, and are non-null.

this must be a non-null pointer to a TSHighlighter instance created by ts_highlighter_new