Function blankCudaConstructs

src/extraction/languages/c-cpp.ts:724–743

(source: string)

// braces it never closes, so it fails the balance check and stays untouched.
const CUDA_LAUNCH_CONFIG_RE = /<<<[^;]{0,400}?>>>/g;
export function blankCudaConstructs(source: string): string {
  let out = source;
  if (out.indexOf('__') !== -1) {
    out = out
      .replace(CUDA_LAUNCH_BOUNDS_RE, (m) => ' '.repeat(m.length))
      .replace(CUDA_SPECIFIER_RE, (m) => ' '.repeat(m.length));
  }
  if (out.indexOf('<<<') !== -1) {
    out = out.replace(CUDA_LAUNCH_CONFIG_RE, (m) => {
      let depth = 0;
      for (let i = 0; i < m.length; i++) {
        const ch = m.charCodeAt(i);
        if (ch === 0x7b /* { */) depth++;
        else if (ch === 0x7d /* } */ && --depth < 0) return m;
      }
      return depth === 0 ? m.replace(/[^\n]/g, ' ') : m;
    });
  }
  return out;
}

/** Strong content markers for CUDA source in files without a CUDA extension
 * (headers). The dunders are execution-space specifiers that only nvcc defines;