remark-shiki-twoslash/dist/remark-shiki-twoslash.cjs.development.js

A remark plugin which renders code samples for all languages via Shiki, but has some real cool features for TS/JS code

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var twoslash = require('@typescript/twoslash');
var visit = _interopDefault(require('unist-util-visit'));
var fenceparser = require('fenceparser');
var shiki = require('shiki');
var shikiTwoslash = require('shiki-twoslash');

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
  try {
    var info = gen[key](arg);
    var value = info.value;
  } catch (error) {
    reject(error);
    return;
  }

  if (info.done) {
    resolve(value);
  } else {
    Promise.resolve(value).then(_next, _throw);
  }
}

function _asyncToGenerator(fn) {
  return function () {
    var self = this,
        args = arguments;
    return new Promise(function (resolve, reject) {
      var gen = fn.apply(self, args);

      function _next(value) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
      }

      function _throw(err) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
      }

      _next(undefined);
    });
  };
}

function _extends() {
  _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

    return target;
  };

  return _extends.apply(this, arguments);
}

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

var runtime_1 = /*#__PURE__*/createCommonjsModule(function (module) {
  /**
   * Copyright (c) 2014-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  var runtime = function (exports) {

    var Op = Object.prototype;
    var hasOwn = Op.hasOwnProperty;
    var undefined$1; // More compressible than void 0.

    var $Symbol = typeof Symbol === "function" ? Symbol : {};
    var iteratorSymbol = $Symbol.iterator || "@@iterator";
    var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
    var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

    function define(obj, key, value) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
      return obj[key];
    }

    try {
      // IE 8 has a broken Object.defineProperty that only works on DOM objects.
      define({}, "");
    } catch (err) {
      define = function define(obj, key, value) {
        return obj[key] = value;
      };
    }

    function wrap(innerFn, outerFn, self, tryLocsList) {
      // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
      var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
      var generator = Object.create(protoGenerator.prototype);
      var context = new Context(tryLocsList || []); // The ._invoke method unifies the implementations of the .next,
      // .throw, and .return methods.

      generator._invoke = makeInvokeMethod(innerFn, self, context);
      return generator;
    }

    exports.wrap = wrap; // Try/catch helper to minimize deoptimizations. Returns a completion
    // record like context.tryEntries[i].completion. This interface could
    // have been (and was previously) designed to take a closure to be
    // invoked without arguments, but in all the cases we care about we
    // already have an existing method we want to call, so there's no need
    // to create a new function object. We can even get away with assuming
    // the method takes exactly one argument, since that happens to be true
    // in every case, so we don't have to touch the arguments object. The
    // only additional allocation required is the completion record, which
    // has a stable shape and so hopefully should be cheap to allocate.

    function tryCatch(fn, obj, arg) {
      try {
        return {
          type: "normal",
          arg: fn.call(obj, arg)
        };
      } catch (err) {
        return {
          type: "throw",
          arg: err
        };
      }
    }

    var GenStateSuspendedStart = "suspendedStart";
    var GenStateSuspendedYield = "suspendedYield";
    var GenStateExecuting = "executing";
    var GenStateCompleted = "completed"; // Returning this object from the innerFn has the same effect as
    // breaking out of the dispatch switch statement.

    var ContinueSentinel = {}; // Dummy constructor functions that we use as the .constructor and
    // .constructor.prototype properties for functions that return Generator
    // objects. For full spec compliance, you may wish to configure your
    // minifier not to mangle the names of these two functions.

    function Generator() {}

    function GeneratorFunction() {}

    function GeneratorFunctionPrototype() {} // This is a polyfill for %IteratorPrototype% for environments that
    // don't natively support it.


    var IteratorPrototype = {};

    IteratorPrototype[iteratorSymbol] = function () {
      return this;
    };

    var getProto = Object.getPrototypeOf;
    var NativeIteratorPrototype = getProto && getProto(getProto(values([])));

    if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
      // This environment has a native %IteratorPrototype%; use it instead
      // of the polyfill.
      IteratorPrototype = NativeIteratorPrototype;
    }

    var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
    GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
    GeneratorFunctionPrototype.constructor = GeneratorFunction;
    GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction"); // Helper for defining the .next, .throw, and .return methods of the
    // Iterator interface in terms of a single ._invoke method.

    function defineIteratorMethods(prototype) {
      ["next", "throw", "return"].forEach(function (method) {
        define(prototype, method, function (arg) {
          return this._invoke(method, arg);
        });
      });
    }

    exports.isGeneratorFunction = function (genFun) {
      var ctor = typeof genFun === "function" && genFun.constructor;
      return ctor ? ctor === GeneratorFunction || // For the native GeneratorFunction constructor, the best we can
      // do is to check its .name property.
      (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
    };

    exports.mark = function (genFun) {
      if (Object.setPrototypeOf) {
        Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
      } else {
        genFun.__proto__ = GeneratorFunctionPrototype;
        define(genFun, toStringTagSymbol, "GeneratorFunction");
      }

      genFun.prototype = Object.create(Gp);
      return genFun;
    }; // Within the body of any async function, `await x` is transformed to
    // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
    // `hasOwn.call(value, "__await")` to determine if the yielded value is
    // meant to be awaited.


    exports.awrap = function (arg) {
      return {
        __await: arg
      };
    };

    function AsyncIterator(generator, PromiseImpl) {
      function invoke(method, arg, resolve, reject) {
        var record = tryCatch(generator[method], generator, arg);

        if (record.type === "throw") {
          reject(record.arg);
        } else {
          var result = record.arg;
          var value = result.value;

          if (value && typeof value === "object" && hasOwn.call(value, "__await")) {
            return PromiseImpl.resolve(value.__await).then(function (value) {
              invoke("next", value, resolve, reject);
            }, function (err) {
              invoke("throw", err, resolve, reject);
            });
          }

          return PromiseImpl.resolve(value).then(function (unwrapped) {
            // When a yielded Promise is resolved, its final value becomes
            // the .value of the Promise<{value,done}> result for the
            // current iteration.
            result.value = unwrapped;
            resolve(result);
          }, function (error) {
            // If a rejected Promise was yielded, throw the rejection back
            // into the async generator function so it can be handled there.
            return invoke("throw", error, resolve, reject);
          });
        }
      }

      var previousPromise;

      function enqueue(method, arg) {
        function callInvokeWithMethodAndArg() {
          return new PromiseImpl(function (resolve, reject) {
            invoke(method, arg, resolve, reject);
          });
        }

        return previousPromise = // If enqueue has been called before, then we want to wait until
        // all previous Promises have been resolved before calling invoke,
        // so that results are always delivered in the correct order. If
        // enqueue has not been called before, then it is important to
        // call invoke immediately, without waiting on a callback to fire,
        // so that the async generator function has the opportunity to do
        // any necessary setup in a predictable way. This predictability
        // is why the Promise constructor synchronously invokes its
        // executor callback, and why async functions synchronously
        // execute code before the first await. Since we implement simple
        // async functions in terms of async generators, it is especially
        // important to get this right, even though it requires care.
        previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, // Avoid propagating failures to Promises returned by later
        // invocations of the iterator.
        callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
      } // Define the unified helper method that is used to implement .next,
      // .throw, and .return (see defineIteratorMethods).


      this._invoke = enqueue;
    }

    defineIteratorMethods(AsyncIterator.prototype);

    AsyncIterator.prototype[asyncIteratorSymbol] = function () {
      return this;
    };

    exports.AsyncIterator = AsyncIterator; // Note that simple async functions are implemented on top of
    // AsyncIterator objects; they just return a Promise for the value of
    // the final result produced by the iterator.

    exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) {
      if (PromiseImpl === void 0) PromiseImpl = Promise;
      var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl);
      return exports.isGeneratorFunction(outerFn) ? iter // If outerFn is a generator, return the full iterator.
      : iter.next().then(function (result) {
        return result.done ? result.value : iter.next();
      });
    };

    function makeInvokeMethod(innerFn, self, context) {
      var state = GenStateSuspendedStart;
      return function invoke(method, arg) {
        if (state === GenStateExecuting) {
          throw new Error("Generator is already running");
        }

        if (state === GenStateCompleted) {
          if (method === "throw") {
            throw arg;
          } // Be forgiving, per 25.3.3.3.3 of the spec:
          // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume


          return doneResult();
        }

        context.method = method;
        context.arg = arg;

        while (true) {
          var delegate = context.delegate;

          if (delegate) {
            var delegateResult = maybeInvokeDelegate(delegate, context);

            if (delegateResult) {
              if (delegateResult === ContinueSentinel) continue;
              return delegateResult;
            }
          }

          if (context.method === "next") {
            // Setting context._sent for legacy support of Babel's
            // function.sent implementation.
            context.sent = context._sent = context.arg;
          } else if (context.method === "throw") {
            if (state === GenStateSuspendedStart) {
              state = GenStateCompleted;
              throw context.arg;
            }

            context.dispatchException(context.arg);
          } else if (context.method === "return") {
            context.abrupt("return", context.arg);
          }

          state = GenStateExecuting;
          var record = tryCatch(innerFn, self, context);

          if (record.type === "normal") {
            // If an exception is thrown from innerFn, we leave state ===
            // GenStateExecuting and loop back for another invocation.
            state = context.done ? GenStateCompleted : GenStateSuspendedYield;

            if (record.arg === ContinueSentinel) {
              continue;
            }

            return {
              value: record.arg,
              done: context.done
            };
          } else if (record.type === "throw") {
            state = GenStateCompleted; // Dispatch the exception by looping back around to the
            // context.dispatchException(context.arg) call above.

            context.method = "throw";
            context.arg = record.arg;
          }
        }
      };
    } // Call delegate.iterator[context.method](context.arg) and handle the
    // result, either by returning a { value, done } result from the
    // delegate iterator, or by modifying context.method and context.arg,
    // setting context.delegate to null, and returning the ContinueSentinel.


    function maybeInvokeDelegate(delegate, context) {
      var method = delegate.iterator[context.method];

      if (method === undefined$1) {
        // A .throw or .return when the delegate iterator has no .throw
        // method always terminates the yield* loop.
        context.delegate = null;

        if (context.method === "throw") {
          // Note: ["return"] must be used for ES3 parsing compatibility.
          if (delegate.iterator["return"]) {
            // If the delegate iterator has a return method, give it a
            // chance to clean up.
            context.method = "return";
            context.arg = undefined$1;
            maybeInvokeDelegate(delegate, context);

            if (context.method === "throw") {
              // If maybeInvokeDelegate(context) changed context.method from
              // "return" to "throw", let that override the TypeError below.
              return ContinueSentinel;
            }
          }

          context.method = "throw";
          context.arg = new TypeError("The iterator does not provide a 'throw' method");
        }

        return ContinueSentinel;
      }

      var record = tryCatch(method, delegate.iterator, context.arg);

      if (record.type === "throw") {
        context.method = "throw";
        context.arg = record.arg;
        context.delegate = null;
        return ContinueSentinel;
      }

      var info = record.arg;

      if (!info) {
        context.method = "throw";
        context.arg = new TypeError("iterator result is not an object");
        context.delegate = null;
        return ContinueSentinel;
      }

      if (info.done) {
        // Assign the result of the finished delegate to the temporary
        // variable specified by delegate.resultName (see delegateYield).
        context[delegate.resultName] = info.value; // Resume execution at the desired location (see delegateYield).

        context.next = delegate.nextLoc; // If context.method was "throw" but the delegate handled the
        // exception, let the outer generator proceed normally. If
        // context.method was "next", forget context.arg since it has been
        // "consumed" by the delegate iterator. If context.method was
        // "return", allow the original .return call to continue in the
        // outer generator.

        if (context.method !== "return") {
          context.method = "next";
          context.arg = undefined$1;
        }
      } else {
        // Re-yield the result returned by the delegate method.
        return info;
      } // The delegate iterator is finished, so forget it and continue with
      // the outer generator.


      context.delegate = null;
      return ContinueSentinel;
    } // Define Generator.prototype.{next,throw,return} in terms of the
    // unified ._invoke helper method.


    defineIteratorMethods(Gp);
    define(Gp, toStringTagSymbol, "Generator"); // A Generator should always return itself as the iterator object when the
    // @@iterator function is called on it. Some browsers' implementations of the
    // iterator prototype chain incorrectly implement this, causing the Generator
    // object to not be returned from this call. This ensures that doesn't happen.
    // See https://github.com/facebook/regenerator/issues/274 for more details.

    Gp[iteratorSymbol] = function () {
      return this;
    };

    Gp.toString = function () {
      return "[object Generator]";
    };

    function pushTryEntry(locs) {
      var entry = {
        tryLoc: locs[0]
      };

      if (1 in locs) {
        entry.catchLoc = locs[1];
      }

      if (2 in locs) {
        entry.finallyLoc = locs[2];
        entry.afterLoc = locs[3];
      }

      this.tryEntries.push(entry);
    }

    function resetTryEntry(entry) {
      var record = entry.completion || {};
      record.type = "normal";
      delete record.arg;
      entry.completion = record;
    }

    function Context(tryLocsList) {
      // The root entry object (effectively a try statement without a catch
      // or a finally block) gives us a place to store values thrown from
      // locations where there is no enclosing try statement.
      this.tryEntries = [{
        tryLoc: "root"
      }];
      tryLocsList.forEach(pushTryEntry, this);
      this.reset(true);
    }

    exports.keys = function (object) {
      var keys = [];

      for (var key in object) {
        keys.push(key);
      }

      keys.reverse(); // Rather than returning an object with a next method, we keep
      // things simple and return the next function itself.

      return function next() {
        while (keys.length) {
          var key = keys.pop();

          if (key in object) {
            next.value = key;
            next.done = false;
            return next;
          }
        } // To avoid creating an additional object, we just hang the .value
        // and .done properties off the next function object itself. This
        // also ensures that the minifier will not anonymize the function.


        next.done = true;
        return next;
      };
    };

    function values(iterable) {
      if (iterable) {
        var iteratorMethod = iterable[iteratorSymbol];

        if (iteratorMethod) {
          return iteratorMethod.call(iterable);
        }

        if (typeof iterable.next === "function") {
          return iterable;
        }

        if (!isNaN(iterable.length)) {
          var i = -1,
              next = function next() {
            while (++i < iterable.length) {
              if (hasOwn.call(iterable, i)) {
                next.value = iterable[i];
                next.done = false;
                return next;
              }
            }

            next.value = undefined$1;
            next.done = true;
            return next;
          };

          return next.next = next;
        }
      } // Return an iterator with no values.


      return {
        next: doneResult
      };
    }

    exports.values = values;

    function doneResult() {
      return {
        value: undefined$1,
        done: true
      };
    }

    Context.prototype = {
      constructor: Context,
      reset: function reset(skipTempReset) {
        this.prev = 0;
        this.next = 0; // Resetting context._sent for legacy support of Babel's
        // function.sent implementation.

        this.sent = this._sent = undefined$1;
        this.done = false;
        this.delegate = null;
        this.method = "next";
        this.arg = undefined$1;
        this.tryEntries.forEach(resetTryEntry);

        if (!skipTempReset) {
          for (var name in this) {
            // Not sure about the optimal order of these conditions:
            if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
              this[name] = undefined$1;
            }
          }
        }
      },
      stop: function stop() {
        this.done = true;
        var rootEntry = this.tryEntries[0];
        var rootRecord = rootEntry.completion;

        if (rootRecord.type === "throw") {
          throw rootRecord.arg;
        }

        return this.rval;
      },
      dispatchException: function dispatchException(exception) {
        if (this.done) {
          throw exception;
        }

        var context = this;

        function handle(loc, caught) {
          record.type = "throw";
          record.arg = exception;
          context.next = loc;

          if (caught) {
            // If the dispatched exception was caught by a catch block,
            // then let that catch block handle the exception normally.
            context.method = "next";
            context.arg = undefined$1;
          }

          return !!caught;
        }

        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          var record = entry.completion;

          if (entry.tryLoc === "root") {
            // Exception thrown outside of any try block that could handle
            // it, so set the completion value of the entire function to
            // throw the exception.
            return handle("end");
          }

          if (entry.tryLoc <= this.prev) {
            var hasCatch = hasOwn.call(entry, "catchLoc");
            var hasFinally = hasOwn.call(entry, "finallyLoc");

            if (hasCatch && hasFinally) {
              if (this.prev < entry.catchLoc) {
                return handle(entry.catchLoc, true);
              } else if (this.prev < entry.finallyLoc) {
                return handle(entry.finallyLoc);
              }
            } else if (hasCatch) {
              if (this.prev < entry.catchLoc) {
                return handle(entry.catchLoc, true);
              }
            } else if (hasFinally) {
              if (this.prev < entry.finallyLoc) {
                return handle(entry.finallyLoc);
              }
            } else {
              throw new Error("try statement without catch or finally");
            }
          }
        }
      },
      abrupt: function abrupt(type, arg) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];

          if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
            var finallyEntry = entry;
            break;
          }
        }

        if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
          // Ignore the finally entry if control is not jumping to a
          // location outside the try/catch block.
          finallyEntry = null;
        }

        var record = finallyEntry ? finallyEntry.completion : {};
        record.type = type;
        record.arg = arg;

        if (finallyEntry) {
          this.method = "next";
          this.next = finallyEntry.finallyLoc;
          return ContinueSentinel;
        }

        return this.complete(record);
      },
      complete: function complete(record, afterLoc) {
        if (record.type === "throw") {
          throw record.arg;
        }

        if (record.type === "break" || record.type === "continue") {
          this.next = record.arg;
        } else if (record.type === "return") {
          this.rval = this.arg = record.arg;
          this.method = "return";
          this.next = "end";
        } else if (record.type === "normal" && afterLoc) {
          this.next = afterLoc;
        }

        return ContinueSentinel;
      },
      finish: function finish(finallyLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];

          if (entry.finallyLoc === finallyLoc) {
            this.complete(entry.completion, entry.afterLoc);
            resetTryEntry(entry);
            return ContinueSentinel;
          }
        }
      },
      "catch": function _catch(tryLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];

          if (entry.tryLoc === tryLoc) {
            var record = entry.completion;

            if (record.type === "throw") {
              var thrown = record.arg;
              resetTryEntry(entry);
            }

            return thrown;
          }
        } // The context.catch method must only be called with a location
        // argument that corresponds to a known catch block.


        throw new Error("illegal catch attempt");
      },
      delegateYield: function delegateYield(iterable, resultName, nextLoc) {
        this.delegate = {
          iterator: values(iterable),
          resultName: resultName,
          nextLoc: nextLoc
        };

        if (this.method === "next") {
          // Deliberately forget the last sent value so that we don't
          // accidentally pass it on to the delegate.
          this.arg = undefined$1;
        }

        return ContinueSentinel;
      }
    }; // Regardless of whether this script is executing as a CommonJS module
    // or not, return the runtime object so that we can declare the variable
    // regeneratorRuntime in the outer scope, which allows this module to be
    // injected easily by `bin/regenerator --include-runtime script.js`.

    return exports;
  }( // If this script is executing as a CommonJS module, use module.exports
  // as the regeneratorRuntime namespace. Otherwise create a new empty
  // object. Either way, the resulting object will be used to initialize
  // the regeneratorRuntime variable at the top of this file.
   module.exports );

  try {
    regeneratorRuntime = runtime;
  } catch (accidentalStrictMode) {
    // This module should not be running in strict mode, so the above
    // assignment should always work unless something is misconfigured. Just
    // in case runtime.js accidentally runs in strict mode, we can escape
    // strict mode using a global Function call. This could conceivably fail
    // if a Content Security Policy forbids using Function, but in that case
    // the proper solution is to fix the accidental strict mode problem. If
    // you've misconfigured your bundler to force strict mode and applied a
    // CSP to forbid Function, and you're not willing to fix either of those
    // problems, please detail your unique predicament in a GitHub issue.
    Function("r", "regeneratorRuntime = r")(runtime);
  }
});

/**
 * Keeps a cache of the JSON responses to a twoslash call in node_modules/.cache/twoslash
 * which should keep CI times down (e.g. the epub vs the handbook etc) - but also during
 * dev time, where it can be super useful.
 */

var cachedTwoslashCall = function cachedTwoslashCall(code, lang, settings) {
  // @ts-expect-error
  var isWebWorker = typeof self !== "undefined" && typeof self.WorkerGlobalScope !== "undefined";
  var isBrowser = isWebWorker || typeof window !== "undefined" && typeof window.document !== "undefined" && typeof fetch !== "undefined";

  if (isBrowser) {
    // Not in Node, run un-cached
    return shikiTwoslash.runTwoSlash(code, lang, settings);
  }

  var _require = require("crypto"),
      createHash = _require.createHash;

  var _require2 = require("fs"),
      readFileSync = _require2.readFileSync,
      existsSync = _require2.existsSync,
      mkdirSync = _require2.mkdirSync,
      writeFileSync = _require2.writeFileSync;

  var _require3 = require("path"),
      join = _require3.join;

  var shikiVersion = require('@typescript/twoslash/package.json').version;

  var tsVersion = require('typescript/package.json').version;

  var shasum = createHash("sha1");
  var codeSha = shasum.update(code + "-" + shikiVersion + "-" + tsVersion).digest("hex");

  var getNmCache = function getNmCache() {
    if (__dirname.includes("node_modules")) {
      return join(__dirname.split("node_modules")[0], "node_modules", ".cache", "twoslash");
    } else {
      return join(__dirname, "..", "..", ".cache", "twoslash");
    }
  };

  var getPnpCache = function getPnpCache() {
    try {
      var pnp = require("pnpapi");

      return join(pnp.getPackageInformation(pnp.topLevel).packageLocation, "node_modules", ".cache", "twoslash");
    } catch (error) {
      return getNmCache();
    }
  };

  var cacheRoot = process.versions.pnp ? getPnpCache() : getNmCache();
  var cachePath = join(cacheRoot, codeSha + ".json");

  if (existsSync(cachePath)) {
    if (process.env.debug) console.log("Using cached twoslash results from " + cachePath);
    return JSON.parse(readFileSync(cachePath, "utf8"));
  } else {
    var results = shikiTwoslash.runTwoSlash(code, lang, settings);
    if (!existsSync(cacheRoot)) mkdirSync(cacheRoot, {
      recursive: true
    });
    writeFileSync(cachePath, JSON.stringify(results), "utf8");
    return results;
  }
};

var addIncludes = function addIncludes(map, name, code) {
  var lines = [];
  code.split("\n").forEach(function (l, _i) {
    var trimmed = l.trim();

    if (trimmed.startsWith("// - ")) {
      var key = trimmed.split("// - ")[1].split(" ")[0];
      map.set(name + "-" + key, lines.join("\n"));
    } else {
      lines.push(l);
    }
  });
  map.set(name, lines.join("\n"));
};
var replaceIncludesInCode = function replaceIncludesInCode(_map, code) {
  var includes = /\/\/ @include: (.*)$/gm; // Basically run a regex over the code replacing any // @include: thing with
  // 'thing' from the map
  // const toReplace: [index:number, length: number, str: string][] = []

  var toReplace = [];
  var match;

  while ((match = includes.exec(code)) !== null) {
    // This is necessary to avoid infinite loops with zero-width matches
    if (match.index === includes.lastIndex) {
      includes.lastIndex++;
    }

    var key = match[1];

    var replaceWith = _map.get(key);

    if (!replaceWith) {
      var msg = "Could not find an include with the key: '" + key + "'.\nThere is: " + Array.from(_map.keys()) + ".";
      throw new Error(msg);
    }

    toReplace.push([match.index, match[0].length, replaceWith]);
  }

  var newCode = code.toString(); // Go backwards through the found changes so that we can retain index position

  toReplace.reverse().forEach(function (r) {
    newCode = newCode.substring(0, r[0]) + r[2] + newCode.substring(r[0] + r[1]);
  });
  return newCode;
};

function escapeHtml(html) {
  return html.replace(/</g, "&lt;").replace(/>/g, "&gt;");
}

var setupNodeForTwoslashException = function setupNodeForTwoslashException(code, node, error) {
  var css = "<style>\n@import url('http://fonts.cdnfonts.com/css/caslon-os'); \n\n.twoslash-fixed-error-note { \n    position: fixed;\n    top: 20px;\n    right: 20px;\n    display: flex;\n    align-items: center;\n    padding: .25rem .75rem;\n    color: black;\n    background-color: #FCF3D9;\n    background-clip: padding-box;\n    border-bottom: 1px solid rgba(0,0,0,.05);\n    border-radius: .25rem;\n    font-family: -apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,\"Noto Sans\",sans-serif,\"Apple Color Emoji\",\"Segoe UI Emoji\",\"Segoe UI Symbol\",\"Noto Color Emoji\";\n } \n\n #__docusaurus .twoslash-fixed-error-note {\n    top: 80px;\n }\n\n .twoslash-fixed-error-note:hover {\n    border-bottom: 1px solid rgba(226, 61, 30, 0.8);\n }\n\n .twoslash-error-color {\n    background-color: #E23D1E;\n    width: 18px;\n    height: 18px;\n    border-radius: 9px;\n    margin-right:  10px;\n    color: black;\n }\n\n.twoslash-exception-message { \n    font-family: 'Caslon OS', sans-serif; \n    background-color: #FCF3D9;\n    font-size: 1.1rem;\n    padding: 2rem;\n    border-left: 2px solid #E23D1E;\n}\n\n.twoslash-exception-message p {\n    margin-top: 1rem;\n    margin-bottom: 0.6rem;\n}\n\n.twoslash-exception-message h3 { \n    margin-top: 0.6rem;\n    margin-bottom: 0.3rem;\n    font-size: 1.8rem;\n}\n\n.twoslash-exception-message code {\n     white-space: pre-wrap;\n     font-family: \"JetBrains Mono\", Menlo, Monaco, Consolas, Courier New, monospace;\n     margin-bottom: 20px;\n     background-color: #FCF3D9;\n     color: black;\n     border: none;\n     padding-left: 0;\n }\n\n .twoslash-exception-message > code {\n     display: block;\n     margin-bottom: 1.5rem;\n     margin-top: 3rem;\n }\n\n.twoslash-exception-code {\n    border-left: 2px solid #E5A604;\n    padding-left: 20px;\n    background-color: #FCF3D9;\n    color: black;\n}\n</style>";

  var bodyFromTwoslashError = function bodyFromTwoslashError(error) {
    return "\n<h3>" + escapeHtml(error.title) + "</h3>\n<p>" + escapeHtml(error.description).replace(/(?:\r\n|\r|\n)/g, "<br>") + "</p>\n<code>" + escapeHtml(error.recommendation).replace(/(?:\r\n|\r|\n)/g, "<br>") + "</code>\n";
  };

  var bodyFromError = function bodyFromError(error) {
    return "<pre><code>" + error.message.split("## Code")[0] + "</code></pre>";
  }; // @ts-ignore


  var isWebWorker = typeof self !== "undefined" && typeof self.WorkerGlobalScope !== "undefined";
  var isBrowser = isWebWorker || typeof window !== "undefined" && typeof window.document !== "undefined" && typeof fetch !== "undefined";
  var isJest = typeof jest !== "undefined";
  var eLog = !isBrowser && !isJest ? console.error : function (_str) {};
  var body = "<pre><code>" + error + "</code></pre>";

  if (typeof error !== "object") {
    body = String(error);
    eLog("### Unexpected error:");
    eLog(error);
  } else if (error instanceof twoslash.TwoslashError) {
    body = bodyFromTwoslashError(error);
    eLog("### Twoslash error: " + error.title);
    eLog(error.description);
    eLog(error.recommendation);
    eLog("\n### Code Sample");
    eLog(code);
  } else if (error instanceof Error) {
    body = bodyFromError(error);
    eLog("### Unexpected error:");
    eLog(error);
  }

  var codeSample = "<p>Raising Code:</p><pre class='twoslash-exception-code'><code>" + escapeHtml(code) + "</code></pre>";
  var html = "\n    <a href='#twoslash-error'><div class='twoslash-fixed-error-note'><span class='twoslash-error-color'></span>Twoslash failure</div></a>\n    <div class='twoslash-exception-message'>" + body + codeSample + "</div>";
  node.type = "html";
  node.value = "<div id='twoslash-error'>" + css + html + "</div>";
  node.children = [];
};

var includes = /*#__PURE__*/new Map();

function getHTML(code, fence, highlighters, twoslash, twoslashSettings) {
  // Shiki doesn't respect json5 as an input, so switch it
  // to json, which can handle comments in the syntax highlight
  var replacer = {
    json5: "json"
  };
  if (replacer[fence.lang]) fence.lang = replacer[fence.lang];
  var results; // Support 'twoslash' includes

  if (fence.lang === "twoslash") {
    if (!fence.meta.include || typeof fence.meta.include !== "string") {
      throw new Error("A twoslash code block needs a pragma like 'twoslash include [name]'");
    }

    addIncludes(includes, fence.meta.include, code);
    results = twoslashSettings.wrapFragments ? "<div class=\"shiki-twoslash-fragment\"></div>" : "";
  } else {
    // All good, get each highlighter and render the shiki output for it
    var output = highlighters.map(function (highlighter) {
      // @ts-ignore
      var themeName = highlighter.customName.split("/").pop().replace(".json", "");
      return shikiTwoslash.renderCodeToHTML(code, fence.lang, fence.meta, _extends({
        themeName: themeName
      }, twoslashSettings), highlighter, twoslash);
    });
    results = output.join("\n");

    if (highlighters.length > 1 && twoslashSettings.wrapFragments) {
      results = "<div class=\"shiki-twoslash-fragment\">" + results + "</div>";
    }
  }

  return results;
}
/**
 * Runs twoslash across an AST node, switching out the text content, and lang
 * and adding a `twoslash` property to the node.
 */


var runTwoSlashOnNode = function runTwoSlashOnNode(code, _ref, settings) {
  var lang = _ref.lang,
      meta = _ref.meta;

  if (settings === void 0) {
    settings = {};
  }

  // Offer a way to do high-perf iterations, this is less useful
  // given that we cache the results of twoslash in the file-system
  var shouldDisableTwoslash = typeof process !== "undefined" && process.env && !!process.env.TWOSLASH_DISABLE;
  if (shouldDisableTwoslash) return undefined; // Only run twoslash when the meta has the attribute twoslash

  if (meta.twoslash) {
    var importedCode = replaceIncludesInCode(includes, code);
    return cachedTwoslashCall(importedCode, lang, settings);
  }

  return undefined;
}; // To make sure we only have one highlighter per theme in a process

var highlighterCache = /*#__PURE__*/new Map();
/** Sets up the highlighters, and cache's for recalls */

var highlightersFromSettings = function highlightersFromSettings(settings) {
  // console.log("i should only log once per theme")
  // ^ uncomment this to debug if required
  var themes = settings.themes || (settings.theme ? [settings.theme] : ["light-plus"]);
  return Promise.all(themes.map( /*#__PURE__*/function () {
    var _ref2 = _asyncToGenerator( /*#__PURE__*/runtime_1.mark(function _callee(theme) {
      var themeName, highlighter;
      return runtime_1.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              // You can put a string, a path, or the JSON theme obj
              themeName = theme.name || theme;
              _context.next = 3;
              return shiki.getHighlighter(_extends({}, settings, {
                theme: theme,
                themes: undefined
              }));

            case 3:
              highlighter = _context.sent;
              // @ts-ignore - https://github.com/shikijs/shiki/pull/162 will fix this
              highlighter.customName = themeName;
              return _context.abrupt("return", highlighter);

            case 6:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function (_x) {
      return _ref2.apply(this, arguments);
    };
  }()));
};

var parsingNewFile = function parsingNewFile() {
  return includes.clear();
};

var parseFence = function parseFence(fence) {
  var _parse;

  var _lex = fenceparser.lex(fence),
      lang = _lex[0],
      tokens = _lex.slice(1); // if the language is twoslash and include key is found
  // insert an `=` after include to make it `include=[name]`
  // which yields better meta


  if (lang === "twoslash") {
    // Search for `include` in tokens
    var index = tokens.indexOf("include");

    if (index !== -1) {
      tokens.splice(index + 1, 0, "=");
    }
  }

  var meta = (_parse = fenceparser.parse(tokens)) != null ? _parse : {};
  return {
    lang: (lang || "").toString(),
    meta: meta
  };
};
/**
 * Synchronous outer function, async inner function, which is how the remark
 * async API works.
 */


function remarkTwoslash(settings) {
  if (settings === void 0) {
    settings = {};
  }

  if (!highlighterCache.has(settings)) {
    highlighterCache.set(settings, highlightersFromSettings(settings));
  }

  var transform = /*#__PURE__*/function () {
    var _ref3 = _asyncToGenerator( /*#__PURE__*/runtime_1.mark(function _callee2(markdownAST) {
      var highlighters;
      return runtime_1.wrap(function _callee2$(_context2) {
        while (1) {
          switch (_context2.prev = _context2.next) {
            case 0:
              _context2.next = 2;
              return highlighterCache.get(settings);

            case 2:
              highlighters = _context2.sent;
              parsingNewFile();
              visit(markdownAST, "code", remarkVisitor(highlighters, settings));

            case 5:
            case "end":
              return _context2.stop();
          }
        }
      }, _callee2);
    }));

    return function transform(_x2) {
      return _ref3.apply(this, arguments);
    };
  }();

  return transform;
}
/**
 * The function doing the work of transforming any codeblock samples in a remark AST.
 */


var remarkVisitor = function remarkVisitor(highlighters, twoslashSettings) {
  if (twoslashSettings === void 0) {
    twoslashSettings = {};
  }

  return function (node) {
    var code = node.value;
    var fence = undefined;

    try {
      fence = parseFence([node.lang, node.meta].filter(Boolean).join(" "));
    } catch (error) {
      var twoslashError = new twoslash.TwoslashError("Codefence error", "Could not parse the codefence for this code sample", "It's usually an unclosed string", code);
      return setupNodeForTwoslashException(code, node, twoslashError);
    } // Do nothing if the node has an attribute to ignore


    if (Object.keys(fence.meta).filter(function (key) {
      return (twoslashSettings.ignoreCodeblocksWithCodefenceMeta || []).includes(key);
    }).length > 0) {
      return;
    }

    var twoslash$1;

    try {
      // By allowing node.twoslash to already exist you can set it up yourself in a browser
      twoslash$1 = node.twoslash || runTwoSlashOnNode(code, fence, twoslashSettings);
    } catch (error) {
      var shouldAlwaysRaise = process && process.env && !!process.env.CI;
      var yeahButNotInTests = typeof jest === "undefined";

      if (shouldAlwaysRaise && yeahButNotInTests || twoslashSettings.alwayRaiseForTwoslashExceptions) {
        throw error;
      } else {
        return setupNodeForTwoslashException(code, node, error);
      }
    }

    if (twoslash$1) {
      node.value = twoslash$1.code;
      node.lang = twoslash$1.extension;
      node.twoslash = twoslash$1;
    }

    var shikiHTML = getHTML(node.value, fence, highlighters, twoslash$1, twoslashSettings);
    node.type = "html";
    node.value = shikiHTML;
    node.children = [];
  };
};

/** Only the inner function exposed as a synchronous API for markdown-it */

var setupForFile = /*#__PURE__*/function () {
  var _ref4 = /*#__PURE__*/_asyncToGenerator( /*#__PURE__*/runtime_1.mark(function _callee3(settings) {
    var highlighters;
    return runtime_1.wrap(function _callee3$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            if (settings === void 0) {
              settings = {};
            }

            parsingNewFile();

            if (!highlighterCache.has(settings)) {
              highlighterCache.set(settings, highlightersFromSettings(settings));
            }

            _context3.next = 5;
            return highlighterCache.get(settings);

          case 5:
            highlighters = _context3.sent;
            return _context3.abrupt("return", {
              settings: settings,
              highlighters: highlighters
            });

          case 7:
          case "end":
            return _context3.stop();
        }
      }
    }, _callee3);
  }));

  return function setupForFile(_x3) {
    return _ref4.apply(this, arguments);
  };
}();
var transformAttributesToHTML = function transformAttributesToHTML(code, fenceString, highlighters, settings) {
  var fence = parseFence(fenceString);
  var twoslash = runTwoSlashOnNode(code, fence, settings);
  var newCode = twoslash && twoslash.code || code;
  return getHTML(newCode, fence, highlighters, twoslash, settings);
};

exports.default = remarkTwoslash;
exports.highlightersFromSettings = highlightersFromSettings;
exports.remarkVisitor = remarkVisitor;
exports.runTwoSlashOnNode = runTwoSlashOnNode;
exports.setupForFile = setupForFile;
exports.transformAttributesToHTML = transformAttributesToHTML;
//# sourceMappingURL=remark-shiki-twoslash.cjs.development.js.map