Function findFirstInstantiationOfExportedClass

tools/lib/patch.js:306–318

(src, exportName)

}

function findFirstInstantiationOfExportedClass(src, exportName) {
  const classIdent = findExportedFactoryVar(src, exportName);
  const re = new RegExp(`([A-Za-z0-9_$]+)\\s*=\\s*new\\s+${classIdent}\\s*\\(`, "g");
  const match = re.exec(String(src || ""));
  if (!match || typeof match.index !== "number") throw new Error(`failed to locate instantiation: VAR=new ${classIdent}(`);
  const openParenIdx = match.index + match[0].lastIndexOf("(");
  const closeParenIdx = findMatchingParen(src, openParenIdx);
  const terminatorIdx = findStatementTerminatorIndex(src, closeParenIdx + 1, {
    allowComma: false,
    label: `statement terminator after ${exportName} instantiation`
  });
  return { classIdent, varName: match[1], openParenIdx, closeParenIdx, terminatorIdx };
}

module.exports = {
  ensureMarker,