[Pkg-javascript-commits] [node-regenerator-runtime] 01/04: Import Upstream version 0.9.5
Sruthi Chandran
srud-guest at moszumanska.debian.org
Wed Nov 2 06:39:57 UTC 2016
This is an automated email from the git hooks/post-receive script.
srud-guest pushed a commit to branch master
in repository node-regenerator-runtime.
commit 26a7a0be6706fdc90d2fb38ff3801c5c4ade04fd
Author: Sruthi <srud at disroot.org>
Date: Wed Nov 2 11:56:30 2016 +0530
Import Upstream version 0.9.5
---
package.json | 18 ++
path.js | 4 +
runtime-module.js | 31 +++
runtime.js | 668 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 721 insertions(+)
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..062e891
--- /dev/null
+++ b/package.json
@@ -0,0 +1,18 @@
+{
+ "name": "regenerator-runtime",
+ "author": "Ben Newman <bn at cs.stanford.edu>",
+ "description": "Runtime for Regenerator-compiled generator and async functions.",
+ "version": "0.9.5",
+ "main": "runtime-module.js",
+ "keywords": [
+ "regenerator",
+ "runtime",
+ "generator",
+ "async"
+ ],
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/facebook/regenerator/tree/master/packages/regenerator-runtime"
+ },
+ "license": "MIT"
+}
diff --git a/path.js b/path.js
new file mode 100644
index 0000000..a450a75
--- /dev/null
+++ b/path.js
@@ -0,0 +1,4 @@
+exports.path = require("path").join(
+ __dirname,
+ "runtime.js"
+);
diff --git a/runtime-module.js b/runtime-module.js
new file mode 100644
index 0000000..8e7e2e4
--- /dev/null
+++ b/runtime-module.js
@@ -0,0 +1,31 @@
+// This method of obtaining a reference to the global object needs to be
+// kept identical to the way it is obtained in runtime.js
+var g =
+ typeof global === "object" ? global :
+ typeof window === "object" ? window :
+ typeof self === "object" ? self : this;
+
+// Use `getOwnPropertyNames` because not all browsers support calling
+// `hasOwnProperty` on the global `self` object in a worker. See #183.
+var hadRuntime = g.regeneratorRuntime &&
+ Object.getOwnPropertyNames(g).indexOf("regeneratorRuntime") >= 0;
+
+// Save the old regeneratorRuntime in case it needs to be restored later.
+var oldRuntime = hadRuntime && g.regeneratorRuntime;
+
+// Force reevalutation of runtime.js.
+g.regeneratorRuntime = undefined;
+
+module.exports = require("./runtime");
+
+if (hadRuntime) {
+ // Restore the original runtime.
+ g.regeneratorRuntime = oldRuntime;
+} else {
+ // Remove the global property added by runtime.js.
+ try {
+ delete g.regeneratorRuntime;
+ } catch(e) {
+ g.regeneratorRuntime = undefined;
+ }
+}
diff --git a/runtime.js b/runtime.js
new file mode 100644
index 0000000..b6f0f39
--- /dev/null
+++ b/runtime.js
@@ -0,0 +1,668 @@
+/**
+ * Copyright (c) 2014, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * https://raw.github.com/facebook/regenerator/master/LICENSE file. An
+ * additional grant of patent rights can be found in the PATENTS file in
+ * the same directory.
+ */
+
+!(function(global) {
+ "use strict";
+
+ var hasOwn = Object.prototype.hasOwnProperty;
+ var undefined; // More compressible than void 0.
+ var $Symbol = typeof Symbol === "function" ? Symbol : {};
+ var iteratorSymbol = $Symbol.iterator || "@@iterator";
+ var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
+
+ var inModule = typeof module === "object";
+ var runtime = global.regeneratorRuntime;
+ if (runtime) {
+ if (inModule) {
+ // If regeneratorRuntime is defined globally and we're in a module,
+ // make the exports object identical to regeneratorRuntime.
+ module.exports = runtime;
+ }
+ // Don't bother evaluating the rest of this file if the runtime was
+ // already defined globally.
+ return;
+ }
+
+ // Define the runtime globally (as expected by generated code) as either
+ // module.exports (if we're in a module) or a new, empty object.
+ runtime = global.regeneratorRuntime = inModule ? module.exports : {};
+
+ function wrap(innerFn, outerFn, self, tryLocsList) {
+ // If outerFn provided, then outerFn.prototype instanceof Generator.
+ var generator = Object.create((outerFn || Generator).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;
+ }
+ runtime.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() {}
+
+ var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype;
+ GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
+ GeneratorFunctionPrototype.constructor = GeneratorFunction;
+ GeneratorFunctionPrototype[toStringTagSymbol] = GeneratorFunction.displayName = "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) {
+ prototype[method] = function(arg) {
+ return this._invoke(method, arg);
+ };
+ });
+ }
+
+ runtime.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;
+ };
+
+ runtime.mark = function(genFun) {
+ if (Object.setPrototypeOf) {
+ Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
+ } else {
+ genFun.__proto__ = GeneratorFunctionPrototype;
+ if (!(toStringTagSymbol in genFun)) {
+ 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
+ // `value instanceof AwaitArgument` to determine if the yielded value is
+ // meant to be awaited. Some may consider the name of this method too
+ // cutesy, but they are curmudgeons.
+ runtime.awrap = function(arg) {
+ return new AwaitArgument(arg);
+ };
+
+ function AwaitArgument(arg) {
+ this.arg = arg;
+ }
+
+ function AsyncIterator(generator) {
+ 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 instanceof AwaitArgument) {
+ return Promise.resolve(value.arg).then(function(value) {
+ invoke("next", value, resolve, reject);
+ }, function(err) {
+ invoke("throw", err, resolve, reject);
+ });
+ }
+
+ return Promise.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. If the Promise is rejected, however, the
+ // result for this iteration will be rejected with the same
+ // reason. Note that rejections of yielded Promises are not
+ // thrown back into the generator function, as is the case
+ // when an awaited Promise is rejected. This difference in
+ // behavior between yield and await is important, because it
+ // allows the consumer to decide what to do with the yielded
+ // rejection (swallow it and continue, manually .throw it back
+ // into the generator, abandon iteration, whatever). With
+ // await, by contrast, there is no opportunity to examine the
+ // rejection reason outside the generator function, so the
+ // only option is to throw it from the await expression, and
+ // let the generator function handle the exception.
+ result.value = unwrapped;
+ resolve(result);
+ }, reject);
+ }
+ }
+
+ if (typeof process === "object" && process.domain) {
+ invoke = process.domain.bind(invoke);
+ }
+
+ var previousPromise;
+
+ function enqueue(method, arg) {
+ function callInvokeWithMethodAndArg() {
+ return new Promise(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);
+
+ // 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.
+ runtime.async = function(innerFn, outerFn, self, tryLocsList) {
+ var iter = new AsyncIterator(
+ wrap(innerFn, outerFn, self, tryLocsList)
+ );
+
+ return runtime.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();
+ }
+
+ while (true) {
+ var delegate = context.delegate;
+ if (delegate) {
+ if (method === "return" ||
+ (method === "throw" && delegate.iterator[method] === undefined)) {
+ // A return or throw (when the delegate iterator has no throw
+ // method) always terminates the yield* loop.
+ context.delegate = null;
+
+ // If the delegate iterator has a return method, give it a
+ // chance to clean up.
+ var returnMethod = delegate.iterator["return"];
+ if (returnMethod) {
+ var record = tryCatch(returnMethod, delegate.iterator, arg);
+ if (record.type === "throw") {
+ // If the return method threw an exception, let that
+ // exception prevail over the original return or throw.
+ method = "throw";
+ arg = record.arg;
+ continue;
+ }
+ }
+
+ if (method === "return") {
+ // Continue with the outer return, now that the delegate
+ // iterator has been terminated.
+ continue;
+ }
+ }
+
+ var record = tryCatch(
+ delegate.iterator[method],
+ delegate.iterator,
+ arg
+ );
+
+ if (record.type === "throw") {
+ context.delegate = null;
+
+ // Like returning generator.throw(uncaught), but without the
+ // overhead of an extra function call.
+ method = "throw";
+ arg = record.arg;
+ continue;
+ }
+
+ // Delegate generator ran and handled its own exceptions so
+ // regardless of what the method was, we continue as if it is
+ // "next" with an undefined arg.
+ method = "next";
+ arg = undefined;
+
+ var info = record.arg;
+ if (info.done) {
+ context[delegate.resultName] = info.value;
+ context.next = delegate.nextLoc;
+ } else {
+ state = GenStateSuspendedYield;
+ return info;
+ }
+
+ context.delegate = null;
+ }
+
+ if (method === "next") {
+ // Setting context._sent for legacy support of Babel's
+ // function.sent implementation.
+ context.sent = context._sent = arg;
+
+ } else if (method === "throw") {
+ if (state === GenStateSuspendedStart) {
+ state = GenStateCompleted;
+ throw arg;
+ }
+
+ if (context.dispatchException(arg)) {
+ // If the dispatched exception was caught by a catch block,
+ // then let that catch block handle the exception normally.
+ method = "next";
+ arg = undefined;
+ }
+
+ } else if (method === "return") {
+ context.abrupt("return", 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;
+
+ var info = {
+ value: record.arg,
+ done: context.done
+ };
+
+ if (record.arg === ContinueSentinel) {
+ if (context.delegate && method === "next") {
+ // Deliberately forget the last sent value so that we don't
+ // accidentally pass it on to the delegate.
+ arg = undefined;
+ }
+ } else {
+ return info;
+ }
+
+ } else if (record.type === "throw") {
+ state = GenStateCompleted;
+ // Dispatch the exception by looping back around to the
+ // context.dispatchException(arg) call above.
+ method = "throw";
+ arg = record.arg;
+ }
+ }
+ };
+ }
+
+ // Define Generator.prototype.{next,throw,return} in terms of the
+ // unified ._invoke helper method.
+ defineIteratorMethods(Gp);
+
+ Gp[iteratorSymbol] = function() {
+ return this;
+ };
+
+ Gp[toStringTagSymbol] = "Generator";
+
+ 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);
+ }
+
+ runtime.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;
+ next.done = true;
+
+ return next;
+ };
+
+ return next.next = next;
+ }
+ }
+
+ // Return an iterator with no values.
+ return { next: doneResult };
+ }
+ runtime.values = values;
+
+ function doneResult() {
+ return { value: undefined, done: true };
+ }
+
+ Context.prototype = {
+ constructor: Context,
+
+ reset: function(skipTempReset) {
+ this.prev = 0;
+ this.next = 0;
+ // Resetting context._sent for legacy support of Babel's
+ // function.sent implementation.
+ this.sent = this._sent = undefined;
+ this.done = false;
+ this.delegate = null;
+
+ 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;
+ }
+ }
+ }
+ },
+
+ stop: function() {
+ this.done = true;
+
+ var rootEntry = this.tryEntries[0];
+ var rootRecord = rootEntry.completion;
+ if (rootRecord.type === "throw") {
+ throw rootRecord.arg;
+ }
+
+ return this.rval;
+ },
+
+ dispatchException: function(exception) {
+ if (this.done) {
+ throw exception;
+ }
+
+ var context = this;
+ function handle(loc, caught) {
+ record.type = "throw";
+ record.arg = exception;
+ context.next = loc;
+ 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(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.next = finallyEntry.finallyLoc;
+ } else {
+ this.complete(record);
+ }
+
+ return ContinueSentinel;
+ },
+
+ complete: function(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 = record.arg;
+ this.next = "end";
+ } else if (record.type === "normal" && afterLoc) {
+ this.next = afterLoc;
+ }
+ },
+
+ finish: function(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(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(iterable, resultName, nextLoc) {
+ this.delegate = {
+ iterator: values(iterable),
+ resultName: resultName,
+ nextLoc: nextLoc
+ };
+
+ return ContinueSentinel;
+ }
+ };
+})(
+ // Among the various tricks for obtaining a reference to the global
+ // object, this seems to be the most reliable technique that does not
+ // use indirect eval (which violates Content Security Policy).
+ typeof global === "object" ? global :
+ typeof window === "object" ? window :
+ typeof self === "object" ? self : this
+);
--
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