Function childIdFromCode

deps/v8/tools/profview/profile-utils.js:115–127

(codeId, code)

}

function childIdFromCode(codeId, code) {
  // For JavaScript function, pretend there is one instance of optimized
  // function and one instance of unoptimized function per SFI.
  // Otherwise, just compute the id from code id.
  let type = resolveCodeKind(code);
  if (type === "JSOPT") {
    return code.func * 4 + 1;
  } else if (type === "JSUNOPT") {
    return code.func * 4 + 2;
  } else {
    return codeId * 4;
  }
}

// We store list of ticks and positions within the ticks stack by
// storing flattened triplets of { tickIndex, depth, count }.