1 files changed, 409 insertions, 0 deletions
diff --git a/ext/web/12_location.js b/ext/web/12_location.js
new file mode 100644
index 000000000..40dd545fe
--- /dev/null
+++ b/ext/web/12_location.js
@@ -0,0 +1,409 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+"use strict";
+
+/// <reference path="../../core/internal.d.ts" />
+
+((window) => {
+  const { URL } = window.__bootstrap.url;
+  const { DOMException } = window.__bootstrap.domException;
+  const {
+    Error,
+    ObjectDefineProperties,
+    ReferenceError,
+    Symbol,
+    SymbolFor,
+    SymbolToStringTag,
+    TypeError,
+    WeakMap,
+    WeakMapPrototypeGet,
+    WeakMapPrototypeSet,
+  } = window.__bootstrap.primordials;
+
+  const locationConstructorKey = Symbol("locationConstuctorKey");
+
+  // The differences between the definitions of `Location` and `WorkerLocation`
+  // are because of the `LegacyUnforgeable` attribute only specified upon
+  // `Location`'s properties. See:
+  // - https://html.spec.whatwg.org/multipage/history.html#the-location-interface
+  // - https://heycam.github.io/webidl/#LegacyUnforgeable
+  class Location {
+    constructor(href = null, key = null) {
+      if (key != locationConstructorKey) {
+        throw new TypeError("Illegal constructor.");
+      }
+      const url = new URL(href);
+      url.username = "";
+      url.password = "";
+      ObjectDefineProperties(this, {
+        hash: {
+          get() {
+            return url.hash;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.hash".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        host: {
+          get() {
+            return url.host;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.host".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        hostname: {
+          get() {
+            return url.hostname;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.hostname".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        href: {
+          get() {
+            return url.href;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.href".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        origin: {
+          get() {
+            return url.origin;
+          },
+          enumerable: true,
+        },
+        pathname: {
+          get() {
+            return url.pathname;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.pathname".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        port: {
+          get() {
+            return url.port;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.port".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        protocol: {
+          get() {
+            return url.protocol;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.protocol".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        search: {
+          get() {
+            return url.search;
+          },
+          set() {
+            throw new DOMException(
+              `Cannot set "location.search".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        ancestorOrigins: {
+          get() {
+            // TODO(nayeemrmn): Replace with a `DOMStringList` instance.
+            return {
+              length: 0,
+              item: () => null,
+              contains: () => false,
+            };
+          },
+          enumerable: true,
+        },
+        assign: {
+          value: function assign() {
+            throw new DOMException(
+              `Cannot call "location.assign()".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        reload: {
+          value: function reload() {
+            throw new DOMException(
+              `Cannot call "location.reload()".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        replace: {
+          value: function replace() {
+            throw new DOMException(
+              `Cannot call "location.replace()".`,
+              "NotSupportedError",
+            );
+          },
+          enumerable: true,
+        },
+        toString: {
+          value: function toString() {
+            return url.href;
+          },
+          enumerable: true,
+        },
+        [SymbolFor("Deno.privateCustomInspect")]: {
+          value: function (inspect) {
+            const object = {
+              hash: this.hash,
+              host: this.host,
+              hostname: this.hostname,
+              href: this.href,
+              origin: this.origin,
+              pathname: this.pathname,
+              port: this.port,
+              protocol: this.protocol,
+              search: this.search,
+            };
+            return `${this.constructor.name} ${inspect(object)}`;
+          },
+        },
+      });
+    }
+  }
+
+  ObjectDefineProperties(Location.prototype, {
+    [SymbolToStringTag]: {
+      value: "Location",
+      configurable: true,
+    },
+  });
+
+  const workerLocationUrls = new WeakMap();
+
+  class WorkerLocation {
+    constructor(href = null, key = null) {
+      if (key != locationConstructorKey) {
+        throw new TypeError("Illegal constructor.");
+      }
+      const url = new URL(href);
+      url.username = "";
+      url.password = "";
+      WeakMapPrototypeSet(workerLocationUrls, this, url);
+    }
+  }
+
+  ObjectDefineProperties(WorkerLocation.prototype, {
+    hash: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.hash;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    host: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.host;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    hostname: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.hostname;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    href: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.href;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    origin: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.origin;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    pathname: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.pathname;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    port: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.port;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    protocol: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.protocol;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    search: {
+      get() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.search;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    toString: {
+      value: function toString() {
+        const url = WeakMapPrototypeGet(workerLocationUrls, this);
+        if (url == null) {
+          throw new TypeError("Illegal invocation.");
+        }
+        return url.href;
+      },
+      configurable: true,
+      enumerable: true,
+      writable: true,
+    },
+    [SymbolToStringTag]: {
+      value: "WorkerLocation",
+      configurable: true,
+    },
+    [SymbolFor("Deno.privateCustomInspect")]: {
+      value: function (inspect) {
+        const object = {
+          hash: this.hash,
+          host: this.host,
+          hostname: this.hostname,
+          href: this.href,
+          origin: this.origin,
+          pathname: this.pathname,
+          port: this.port,
+          protocol: this.protocol,
+          search: this.search,
+        };
+        return `${this.constructor.name} ${inspect(object)}`;
+      },
+    },
+  });
+
+  let location = null;
+  let workerLocation = null;
+
+  function setLocationHref(href) {
+    location = new Location(href, locationConstructorKey);
+    workerLocation = new WorkerLocation(href, locationConstructorKey);
+  }
+
+  window.__bootstrap.location = {
+    locationConstructorDescriptor: {
+      value: Location,
+      configurable: true,
+      writable: true,
+    },
+    workerLocationConstructorDescriptor: {
+      value: WorkerLocation,
+      configurable: true,
+      writable: true,
+    },
+    locationDescriptor: {
+      get() {
+        if (location == null) {
+          throw new ReferenceError(
+            `Access to "location", run again with --location <href>.`,
+          );
+        }
+        return location;
+      },
+      set() {
+        throw new DOMException(`Cannot set "location".`, "NotSupportedError");
+      },
+      enumerable: true,
+    },
+    workerLocationDescriptor: {
+      get() {
+        if (workerLocation == null) {
+          throw new Error(
+            `Assertion: "globalThis.location" must be defined in a worker.`,
+          );
+        }
+        return workerLocation;
+      },
+      configurable: true,
+      enumerable: true,
+    },
+    setLocationHref,
+    getLocationHref() {
+      return location?.href;
+    },
+  };
+})(this);