react-native-reanimated/lib/module/common/logger.js

More powerful alternative to Animated library for React Native.

/* eslint-disable reanimated/use-logger */
'use strict';

const PREFIX = '[Reanimated]';
const DOCS_URL = 'https://docs.swmansion.com/react-native-reanimated/docs/debugging/logger-configuration';
const DOCS_REFERENCE = `If you don't want to see this message, you can disable the \`strict\` mode. Refer to:\n${DOCS_URL} for more details.`;
export let ReanimatedLogLevel = /*#__PURE__*/function (ReanimatedLogLevel) {
  ReanimatedLogLevel[ReanimatedLogLevel["warn"] = 1] = "warn";
  ReanimatedLogLevel[ReanimatedLogLevel["error"] = 2] = "error";
  return ReanimatedLogLevel;
}({});
function logToConsole(data) {
  'worklet';

  switch (data.level) {
    case ReanimatedLogLevel.warn:
      console.warn(data.message);
      break;
    case ReanimatedLogLevel.error:
      console.error(data.message);
      break;
  }
}
export const DEFAULT_LOGGER_CONFIG = {
  logFunction: logToConsole,
  level: ReanimatedLogLevel.warn,
  strict: true
};

/**
 * Registers the logger configuration. use it only for Worklet runtimes.
 *
 * @param config - The config to register.
 */
export function registerLoggerConfig(config) {
  'worklet';

  global.__reanimatedLoggerConfig = config;
}

/**
 * Updates logger configuration.
 *
 * @param options - The new logger configuration to apply.
 *
 *   - Level: The minimum log level to display.
 *   - Strict: Whether to log warnings and errors that are not strict. Defaults to
 *       false.
 */
export function updateLoggerConfig(options) {
  'worklet';

  registerLoggerConfig({
    ...global.__reanimatedLoggerConfig,
    // Don't reuse previous level and strict values from the global config
    level: options?.level ?? DEFAULT_LOGGER_CONFIG.level,
    strict: options?.strict ?? DEFAULT_LOGGER_CONFIG.strict
  });
}
function handleLog(level, message, options) {
  'worklet';

  const config = global.__reanimatedLoggerConfig;
  if (
  // Don't log if the log is marked as strict-only and the config doesn't
  // enable strict logging
  options.strict && !config.strict ||
  // Don't log if the log level is below the minimum configured level
  level < config.level) {
    return;
  }
  if (options.strict) {
    message += `\n\n${DOCS_REFERENCE}`;
  }
  config.logFunction({
    level,
    message: `${PREFIX} ${message}`
  });
}
export const logger = {
  warn(message, options = {}) {
    'worklet';

    handleLog(ReanimatedLogLevel.warn, message, options);
  },
  error(message, options = {}) {
    'worklet';

    handleLog(ReanimatedLogLevel.error, message, options);
  }
};
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