function formatDependency(params, idx) { if (params === null) { return `at position #${idx}`; } const argName = params.split(",")[idx].trim(); return `"${argName}" at position #${idx}`; } function composeErrorMessage(msg, e, indent = " ") { return [msg, ...e.message.split("\n").map(l => indent + l)].join("\n"); } export function formatErrorCtor(ctor, paramIdx, error) { const [, params = null] = ctor.toString().match(/constructor\(([\w, ]+)\)/) || []; const dep = formatDependency(params, paramIdx); return composeErrorMessage(`Cannot inject the dependency ${dep} of "${ctor.name}" constructor. Reason:`, error); }