Make crow-tech module from Chapter 11 loadable in Node

marijnh · marijnh · commit 330d04158bac · 2018-02-19T10:14:32.000+01:00
Issue marijnh#344
diff --git a/11_async.md b/11_async.md
@@ -1,4 +1,4 @@
-{{meta {load_files: ["code/crows.js", "code/chapter/11_async.js"]}}}
+{{meta {load_files: ["code/crow-tech.js", "code/chapter/11_async.js"]}}}
 
 # Asynchronous Programming
 
@@ -185,7 +185,7 @@ nest, a crow could run code like this:
 {{index "readStorage function"}}
 
 ```{includeCode: "top_lines: 1"}
-import {bigOak} from "crow-tech";
+import {bigOak} from "./crow-tech";
 
 bigOak.readStorage("food caches", caches => {
   let firstCache = caches[0];
@@ -216,7 +216,7 @@ response.
 
 {{index "crow-tech module", "send method"}}
 
-The interface exported by the `"crow-tech"` module provides
+The interface exported by the `"./crow-tech"` module provides
 callback-based functions for communication. Nests have a `send` method
 that sends off a request. It expects the name of the target nest, the
 type of the request, and the content of the request as its first three
@@ -237,7 +237,7 @@ our handler code on all connected nests.
 {{index "defineRequestType function"}}
 
 ```{includeCode: true}
-import {defineRequestType} from "crow-tech";
+import {defineRequestType} from "./crow-tech";
 
 defineRequestType("note", (nest, content, source, done) => {
   console.log(`${nest.name} received note: ${content}`);
@@ -625,7 +625,7 @@ whole network has received the message.
 {{index "sendGossip function"}}
 
 ```{includeCode: true}
-import {everywhere} from "crow-tech";
+import {everywhere} from "./crow-tech";
 
 everywhere(nest => {
   nest.state.gossip = [];
diff --git a/code/crow-tech.js b/code/crow-tech.js
@@ -127,41 +127,10 @@
 
   if (typeof window != "undefined") {
     window.require = name => {
-      if (name != "crow-tech") throw new Error("Crow nests can only require \"crow-tech\"")
+      if (name != "./crow-tech") throw new Error("Crow nests can only require \"./crow-tech\"")
       return exports
     }
-
-    window.List = class List {
-      constructor(value, rest) {
-        this.value = value;
-        this.rest = rest;
-      }
-
-      toArray() {
-        let array = [];
-        for (let list = this; list != List.empty; list = list.rest) {
-          array.push(list.value);
-        }
-        return array;
-      }
-
-      get length() {
-        let length = 0;
-        for (let list = this; list != List.empty; list = list.rest) {
-          length++;
-        }
-        return length;
-      }
-
-      static fromArray(array) {
-        let list = List.empty;
-        for (let i = array.length - 1; i >= 0; i--) {
-          list = new List(array[i], list);
-        }
-        return list;
-      }
-    }
-
-    List.empty = new List(undefined, undefined);
+  } else if (typeof module != "undefined" && module.exports) {
+    module.exports = exports
   }
 })()
